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22831 lines
1.6 MiB
22831 lines
1.6 MiB
(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
|
|
var asn1 = exports;
|
|
|
|
asn1.bignum = require('bn.js');
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|
|
|
asn1.define = require('./asn1/api').define;
|
|
asn1.base = require('./asn1/base');
|
|
asn1.constants = require('./asn1/constants');
|
|
asn1.decoders = require('./asn1/decoders');
|
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asn1.encoders = require('./asn1/encoders');
|
|
|
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},{"./asn1/api":2,"./asn1/base":4,"./asn1/constants":8,"./asn1/decoders":10,"./asn1/encoders":13,"bn.js":16}],2:[function(require,module,exports){
|
|
var asn1 = require('../asn1');
|
|
var inherits = require('inherits');
|
|
|
|
var api = exports;
|
|
|
|
api.define = function define(name, body) {
|
|
return new Entity(name, body);
|
|
};
|
|
|
|
function Entity(name, body) {
|
|
this.name = name;
|
|
this.body = body;
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|
|
|
this.decoders = {};
|
|
this.encoders = {};
|
|
};
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|
|
|
Entity.prototype._createNamed = function createNamed(base) {
|
|
var named;
|
|
try {
|
|
named = require('vm').runInThisContext(
|
|
'(function ' + this.name + '(entity) {\n' +
|
|
' this._initNamed(entity);\n' +
|
|
'})'
|
|
);
|
|
} catch (e) {
|
|
named = function (entity) {
|
|
this._initNamed(entity);
|
|
};
|
|
}
|
|
inherits(named, base);
|
|
named.prototype._initNamed = function initnamed(entity) {
|
|
base.call(this, entity);
|
|
};
|
|
|
|
return new named(this);
|
|
};
|
|
|
|
Entity.prototype._getDecoder = function _getDecoder(enc) {
|
|
enc = enc || 'der';
|
|
// Lazily create decoder
|
|
if (!this.decoders.hasOwnProperty(enc))
|
|
this.decoders[enc] = this._createNamed(asn1.decoders[enc]);
|
|
return this.decoders[enc];
|
|
};
|
|
|
|
Entity.prototype.decode = function decode(data, enc, options) {
|
|
return this._getDecoder(enc).decode(data, options);
|
|
};
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|
|
|
Entity.prototype._getEncoder = function _getEncoder(enc) {
|
|
enc = enc || 'der';
|
|
// Lazily create encoder
|
|
if (!this.encoders.hasOwnProperty(enc))
|
|
this.encoders[enc] = this._createNamed(asn1.encoders[enc]);
|
|
return this.encoders[enc];
|
|
};
|
|
|
|
Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) {
|
|
return this._getEncoder(enc).encode(data, reporter);
|
|
};
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|
|
|
},{"../asn1":1,"inherits":100,"vm":157}],3:[function(require,module,exports){
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var inherits = require('inherits');
|
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var Reporter = require('../base').Reporter;
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var Buffer = require('buffer').Buffer;
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|
|
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function DecoderBuffer(base, options) {
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|
Reporter.call(this, options);
|
|
if (!Buffer.isBuffer(base)) {
|
|
this.error('Input not Buffer');
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|
return;
|
|
}
|
|
|
|
this.base = base;
|
|
this.offset = 0;
|
|
this.length = base.length;
|
|
}
|
|
inherits(DecoderBuffer, Reporter);
|
|
exports.DecoderBuffer = DecoderBuffer;
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|
|
|
DecoderBuffer.prototype.save = function save() {
|
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return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
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|
};
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|
|
|
DecoderBuffer.prototype.restore = function restore(save) {
|
|
// Return skipped data
|
|
var res = new DecoderBuffer(this.base);
|
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res.offset = save.offset;
|
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res.length = this.offset;
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|
|
|
this.offset = save.offset;
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|
Reporter.prototype.restore.call(this, save.reporter);
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|
|
|
return res;
|
|
};
|
|
|
|
DecoderBuffer.prototype.isEmpty = function isEmpty() {
|
|
return this.offset === this.length;
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|
};
|
|
|
|
DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
|
|
if (this.offset + 1 <= this.length)
|
|
return this.base.readUInt8(this.offset++, true);
|
|
else
|
|
return this.error(fail || 'DecoderBuffer overrun');
|
|
}
|
|
|
|
DecoderBuffer.prototype.skip = function skip(bytes, fail) {
|
|
if (!(this.offset + bytes <= this.length))
|
|
return this.error(fail || 'DecoderBuffer overrun');
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|
|
|
var res = new DecoderBuffer(this.base);
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|
|
|
// Share reporter state
|
|
res._reporterState = this._reporterState;
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|
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res.offset = this.offset;
|
|
res.length = this.offset + bytes;
|
|
this.offset += bytes;
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return res;
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|
}
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|
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DecoderBuffer.prototype.raw = function raw(save) {
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return this.base.slice(save ? save.offset : this.offset, this.length);
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}
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function EncoderBuffer(value, reporter) {
|
|
if (Array.isArray(value)) {
|
|
this.length = 0;
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this.value = value.map(function(item) {
|
|
if (!(item instanceof EncoderBuffer))
|
|
item = new EncoderBuffer(item, reporter);
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|
this.length += item.length;
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|
return item;
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|
}, this);
|
|
} else if (typeof value === 'number') {
|
|
if (!(0 <= value && value <= 0xff))
|
|
return reporter.error('non-byte EncoderBuffer value');
|
|
this.value = value;
|
|
this.length = 1;
|
|
} else if (typeof value === 'string') {
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this.value = value;
|
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this.length = Buffer.byteLength(value);
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} else if (Buffer.isBuffer(value)) {
|
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this.value = value;
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this.length = value.length;
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|
} else {
|
|
return reporter.error('Unsupported type: ' + typeof value);
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}
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|
}
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|
exports.EncoderBuffer = EncoderBuffer;
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EncoderBuffer.prototype.join = function join(out, offset) {
|
|
if (!out)
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|
out = new Buffer(this.length);
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|
if (!offset)
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|
offset = 0;
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|
|
|
if (this.length === 0)
|
|
return out;
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|
|
|
if (Array.isArray(this.value)) {
|
|
this.value.forEach(function(item) {
|
|
item.join(out, offset);
|
|
offset += item.length;
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|
});
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|
} else {
|
|
if (typeof this.value === 'number')
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|
out[offset] = this.value;
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else if (typeof this.value === 'string')
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out.write(this.value, offset);
|
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else if (Buffer.isBuffer(this.value))
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this.value.copy(out, offset);
|
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offset += this.length;
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|
}
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return out;
|
|
};
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},{"../base":4,"buffer":48,"inherits":100}],4:[function(require,module,exports){
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var base = exports;
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base.Reporter = require('./reporter').Reporter;
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|
base.DecoderBuffer = require('./buffer').DecoderBuffer;
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|
base.EncoderBuffer = require('./buffer').EncoderBuffer;
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base.Node = require('./node');
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|
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},{"./buffer":3,"./node":5,"./reporter":6}],5:[function(require,module,exports){
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var Reporter = require('../base').Reporter;
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var EncoderBuffer = require('../base').EncoderBuffer;
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var DecoderBuffer = require('../base').DecoderBuffer;
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var assert = require('minimalistic-assert');
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|
|
// Supported tags
|
|
var tags = [
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'seq', 'seqof', 'set', 'setof', 'objid', 'bool',
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'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',
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|
'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',
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|
'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'
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|
];
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|
|
|
// Public methods list
|
|
var methods = [
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|
'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
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'any', 'contains'
|
|
].concat(tags);
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|
|
|
// Overrided methods list
|
|
var overrided = [
|
|
'_peekTag', '_decodeTag', '_use',
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|
'_decodeStr', '_decodeObjid', '_decodeTime',
|
|
'_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',
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|
|
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'_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
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'_encodeNull', '_encodeInt', '_encodeBool'
|
|
];
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|
function Node(enc, parent) {
|
|
var state = {};
|
|
this._baseState = state;
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|
state.enc = enc;
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|
|
state.parent = parent || null;
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state.children = null;
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|
|
|
// State
|
|
state.tag = null;
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state.args = null;
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|
state.reverseArgs = null;
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|
state.choice = null;
|
|
state.optional = false;
|
|
state.any = false;
|
|
state.obj = false;
|
|
state.use = null;
|
|
state.useDecoder = null;
|
|
state.key = null;
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state['default'] = null;
|
|
state.explicit = null;
|
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state.implicit = null;
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state.contains = null;
|
|
|
|
// Should create new instance on each method
|
|
if (!state.parent) {
|
|
state.children = [];
|
|
this._wrap();
|
|
}
|
|
}
|
|
module.exports = Node;
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|
|
|
var stateProps = [
|
|
'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
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|
'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
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'implicit', 'contains'
|
|
];
|
|
|
|
Node.prototype.clone = function clone() {
|
|
var state = this._baseState;
|
|
var cstate = {};
|
|
stateProps.forEach(function(prop) {
|
|
cstate[prop] = state[prop];
|
|
});
|
|
var res = new this.constructor(cstate.parent);
|
|
res._baseState = cstate;
|
|
return res;
|
|
};
|
|
|
|
Node.prototype._wrap = function wrap() {
|
|
var state = this._baseState;
|
|
methods.forEach(function(method) {
|
|
this[method] = function _wrappedMethod() {
|
|
var clone = new this.constructor(this);
|
|
state.children.push(clone);
|
|
return clone[method].apply(clone, arguments);
|
|
};
|
|
}, this);
|
|
};
|
|
|
|
Node.prototype._init = function init(body) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.parent === null);
|
|
body.call(this);
|
|
|
|
// Filter children
|
|
state.children = state.children.filter(function(child) {
|
|
return child._baseState.parent === this;
|
|
}, this);
|
|
assert.equal(state.children.length, 1, 'Root node can have only one child');
|
|
};
|
|
|
|
Node.prototype._useArgs = function useArgs(args) {
|
|
var state = this._baseState;
|
|
|
|
// Filter children and args
|
|
var children = args.filter(function(arg) {
|
|
return arg instanceof this.constructor;
|
|
}, this);
|
|
args = args.filter(function(arg) {
|
|
return !(arg instanceof this.constructor);
|
|
}, this);
|
|
|
|
if (children.length !== 0) {
|
|
assert(state.children === null);
|
|
state.children = children;
|
|
|
|
// Replace parent to maintain backward link
|
|
children.forEach(function(child) {
|
|
child._baseState.parent = this;
|
|
}, this);
|
|
}
|
|
if (args.length !== 0) {
|
|
assert(state.args === null);
|
|
state.args = args;
|
|
state.reverseArgs = args.map(function(arg) {
|
|
if (typeof arg !== 'object' || arg.constructor !== Object)
|
|
return arg;
|
|
|
|
var res = {};
|
|
Object.keys(arg).forEach(function(key) {
|
|
if (key == (key | 0))
|
|
key |= 0;
|
|
var value = arg[key];
|
|
res[value] = key;
|
|
});
|
|
return res;
|
|
});
|
|
}
|
|
};
|
|
|
|
//
|
|
// Overrided methods
|
|
//
|
|
|
|
overrided.forEach(function(method) {
|
|
Node.prototype[method] = function _overrided() {
|
|
var state = this._baseState;
|
|
throw new Error(method + ' not implemented for encoding: ' + state.enc);
|
|
};
|
|
});
|
|
|
|
//
|
|
// Public methods
|
|
//
|
|
|
|
tags.forEach(function(tag) {
|
|
Node.prototype[tag] = function _tagMethod() {
|
|
var state = this._baseState;
|
|
var args = Array.prototype.slice.call(arguments);
|
|
|
|
assert(state.tag === null);
|
|
state.tag = tag;
|
|
|
|
this._useArgs(args);
|
|
|
|
return this;
|
|
};
|
|
});
|
|
|
|
Node.prototype.use = function use(item) {
|
|
assert(item);
|
|
var state = this._baseState;
|
|
|
|
assert(state.use === null);
|
|
state.use = item;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.optional = function optional() {
|
|
var state = this._baseState;
|
|
|
|
state.optional = true;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.def = function def(val) {
|
|
var state = this._baseState;
|
|
|
|
assert(state['default'] === null);
|
|
state['default'] = val;
|
|
state.optional = true;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.explicit = function explicit(num) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.explicit === null && state.implicit === null);
|
|
state.explicit = num;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.implicit = function implicit(num) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.explicit === null && state.implicit === null);
|
|
state.implicit = num;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.obj = function obj() {
|
|
var state = this._baseState;
|
|
var args = Array.prototype.slice.call(arguments);
|
|
|
|
state.obj = true;
|
|
|
|
if (args.length !== 0)
|
|
this._useArgs(args);
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.key = function key(newKey) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.key === null);
|
|
state.key = newKey;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.any = function any() {
|
|
var state = this._baseState;
|
|
|
|
state.any = true;
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.choice = function choice(obj) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.choice === null);
|
|
state.choice = obj;
|
|
this._useArgs(Object.keys(obj).map(function(key) {
|
|
return obj[key];
|
|
}));
|
|
|
|
return this;
|
|
};
|
|
|
|
Node.prototype.contains = function contains(item) {
|
|
var state = this._baseState;
|
|
|
|
assert(state.use === null);
|
|
state.contains = item;
|
|
|
|
return this;
|
|
};
|
|
|
|
//
|
|
// Decoding
|
|
//
|
|
|
|
Node.prototype._decode = function decode(input, options) {
|
|
var state = this._baseState;
|
|
|
|
// Decode root node
|
|
if (state.parent === null)
|
|
return input.wrapResult(state.children[0]._decode(input, options));
|
|
|
|
var result = state['default'];
|
|
var present = true;
|
|
|
|
var prevKey = null;
|
|
if (state.key !== null)
|
|
prevKey = input.enterKey(state.key);
|
|
|
|
// Check if tag is there
|
|
if (state.optional) {
|
|
var tag = null;
|
|
if (state.explicit !== null)
|
|
tag = state.explicit;
|
|
else if (state.implicit !== null)
|
|
tag = state.implicit;
|
|
else if (state.tag !== null)
|
|
tag = state.tag;
|
|
|
|
if (tag === null && !state.any) {
|
|
// Trial and Error
|
|
var save = input.save();
|
|
try {
|
|
if (state.choice === null)
|
|
this._decodeGeneric(state.tag, input, options);
|
|
else
|
|
this._decodeChoice(input, options);
|
|
present = true;
|
|
} catch (e) {
|
|
present = false;
|
|
}
|
|
input.restore(save);
|
|
} else {
|
|
present = this._peekTag(input, tag, state.any);
|
|
|
|
if (input.isError(present))
|
|
return present;
|
|
}
|
|
}
|
|
|
|
// Push object on stack
|
|
var prevObj;
|
|
if (state.obj && present)
|
|
prevObj = input.enterObject();
|
|
|
|
if (present) {
|
|
// Unwrap explicit values
|
|
if (state.explicit !== null) {
|
|
var explicit = this._decodeTag(input, state.explicit);
|
|
if (input.isError(explicit))
|
|
return explicit;
|
|
input = explicit;
|
|
}
|
|
|
|
var start = input.offset;
|
|
|
|
// Unwrap implicit and normal values
|
|
if (state.use === null && state.choice === null) {
|
|
if (state.any)
|
|
var save = input.save();
|
|
var body = this._decodeTag(
|
|
input,
|
|
state.implicit !== null ? state.implicit : state.tag,
|
|
state.any
|
|
);
|
|
if (input.isError(body))
|
|
return body;
|
|
|
|
if (state.any)
|
|
result = input.raw(save);
|
|
else
|
|
input = body;
|
|
}
|
|
|
|
if (options && options.track && state.tag !== null)
|
|
options.track(input.path(), start, input.length, 'tagged');
|
|
|
|
if (options && options.track && state.tag !== null)
|
|
options.track(input.path(), input.offset, input.length, 'content');
|
|
|
|
// Select proper method for tag
|
|
if (state.any)
|
|
result = result;
|
|
else if (state.choice === null)
|
|
result = this._decodeGeneric(state.tag, input, options);
|
|
else
|
|
result = this._decodeChoice(input, options);
|
|
|
|
if (input.isError(result))
|
|
return result;
|
|
|
|
// Decode children
|
|
if (!state.any && state.choice === null && state.children !== null) {
|
|
state.children.forEach(function decodeChildren(child) {
|
|
// NOTE: We are ignoring errors here, to let parser continue with other
|
|
// parts of encoded data
|
|
child._decode(input, options);
|
|
});
|
|
}
|
|
|
|
// Decode contained/encoded by schema, only in bit or octet strings
|
|
if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {
|
|
var data = new DecoderBuffer(result);
|
|
result = this._getUse(state.contains, input._reporterState.obj)
|
|
._decode(data, options);
|
|
}
|
|
}
|
|
|
|
// Pop object
|
|
if (state.obj && present)
|
|
result = input.leaveObject(prevObj);
|
|
|
|
// Set key
|
|
if (state.key !== null && (result !== null || present === true))
|
|
input.leaveKey(prevKey, state.key, result);
|
|
else if (prevKey !== null)
|
|
input.exitKey(prevKey);
|
|
|
|
return result;
|
|
};
|
|
|
|
Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {
|
|
var state = this._baseState;
|
|
|
|
if (tag === 'seq' || tag === 'set')
|
|
return null;
|
|
if (tag === 'seqof' || tag === 'setof')
|
|
return this._decodeList(input, tag, state.args[0], options);
|
|
else if (/str$/.test(tag))
|
|
return this._decodeStr(input, tag, options);
|
|
else if (tag === 'objid' && state.args)
|
|
return this._decodeObjid(input, state.args[0], state.args[1], options);
|
|
else if (tag === 'objid')
|
|
return this._decodeObjid(input, null, null, options);
|
|
else if (tag === 'gentime' || tag === 'utctime')
|
|
return this._decodeTime(input, tag, options);
|
|
else if (tag === 'null_')
|
|
return this._decodeNull(input, options);
|
|
else if (tag === 'bool')
|
|
return this._decodeBool(input, options);
|
|
else if (tag === 'objDesc')
|
|
return this._decodeStr(input, tag, options);
|
|
else if (tag === 'int' || tag === 'enum')
|
|
return this._decodeInt(input, state.args && state.args[0], options);
|
|
|
|
if (state.use !== null) {
|
|
return this._getUse(state.use, input._reporterState.obj)
|
|
._decode(input, options);
|
|
} else {
|
|
return input.error('unknown tag: ' + tag);
|
|
}
|
|
};
|
|
|
|
Node.prototype._getUse = function _getUse(entity, obj) {
|
|
|
|
var state = this._baseState;
|
|
// Create altered use decoder if implicit is set
|
|
state.useDecoder = this._use(entity, obj);
|
|
assert(state.useDecoder._baseState.parent === null);
|
|
state.useDecoder = state.useDecoder._baseState.children[0];
|
|
if (state.implicit !== state.useDecoder._baseState.implicit) {
|
|
state.useDecoder = state.useDecoder.clone();
|
|
state.useDecoder._baseState.implicit = state.implicit;
|
|
}
|
|
return state.useDecoder;
|
|
};
|
|
|
|
Node.prototype._decodeChoice = function decodeChoice(input, options) {
|
|
var state = this._baseState;
|
|
var result = null;
|
|
var match = false;
|
|
|
|
Object.keys(state.choice).some(function(key) {
|
|
var save = input.save();
|
|
var node = state.choice[key];
|
|
try {
|
|
var value = node._decode(input, options);
|
|
if (input.isError(value))
|
|
return false;
|
|
|
|
result = { type: key, value: value };
|
|
match = true;
|
|
} catch (e) {
|
|
input.restore(save);
|
|
return false;
|
|
}
|
|
return true;
|
|
}, this);
|
|
|
|
if (!match)
|
|
return input.error('Choice not matched');
|
|
|
|
return result;
|
|
};
|
|
|
|
//
|
|
// Encoding
|
|
//
|
|
|
|
Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
|
|
return new EncoderBuffer(data, this.reporter);
|
|
};
|
|
|
|
Node.prototype._encode = function encode(data, reporter, parent) {
|
|
var state = this._baseState;
|
|
if (state['default'] !== null && state['default'] === data)
|
|
return;
|
|
|
|
var result = this._encodeValue(data, reporter, parent);
|
|
if (result === undefined)
|
|
return;
|
|
|
|
if (this._skipDefault(result, reporter, parent))
|
|
return;
|
|
|
|
return result;
|
|
};
|
|
|
|
Node.prototype._encodeValue = function encode(data, reporter, parent) {
|
|
var state = this._baseState;
|
|
|
|
// Decode root node
|
|
if (state.parent === null)
|
|
return state.children[0]._encode(data, reporter || new Reporter());
|
|
|
|
var result = null;
|
|
|
|
// Set reporter to share it with a child class
|
|
this.reporter = reporter;
|
|
|
|
// Check if data is there
|
|
if (state.optional && data === undefined) {
|
|
if (state['default'] !== null)
|
|
data = state['default']
|
|
else
|
|
return;
|
|
}
|
|
|
|
// Encode children first
|
|
var content = null;
|
|
var primitive = false;
|
|
if (state.any) {
|
|
// Anything that was given is translated to buffer
|
|
result = this._createEncoderBuffer(data);
|
|
} else if (state.choice) {
|
|
result = this._encodeChoice(data, reporter);
|
|
} else if (state.contains) {
|
|
content = this._getUse(state.contains, parent)._encode(data, reporter);
|
|
primitive = true;
|
|
} else if (state.children) {
|
|
content = state.children.map(function(child) {
|
|
if (child._baseState.tag === 'null_')
|
|
return child._encode(null, reporter, data);
|
|
|
|
if (child._baseState.key === null)
|
|
return reporter.error('Child should have a key');
|
|
var prevKey = reporter.enterKey(child._baseState.key);
|
|
|
|
if (typeof data !== 'object')
|
|
return reporter.error('Child expected, but input is not object');
|
|
|
|
var res = child._encode(data[child._baseState.key], reporter, data);
|
|
reporter.leaveKey(prevKey);
|
|
|
|
return res;
|
|
}, this).filter(function(child) {
|
|
return child;
|
|
});
|
|
content = this._createEncoderBuffer(content);
|
|
} else {
|
|
if (state.tag === 'seqof' || state.tag === 'setof') {
|
|
// TODO(indutny): this should be thrown on DSL level
|
|
if (!(state.args && state.args.length === 1))
|
|
return reporter.error('Too many args for : ' + state.tag);
|
|
|
|
if (!Array.isArray(data))
|
|
return reporter.error('seqof/setof, but data is not Array');
|
|
|
|
var child = this.clone();
|
|
child._baseState.implicit = null;
|
|
content = this._createEncoderBuffer(data.map(function(item) {
|
|
var state = this._baseState;
|
|
|
|
return this._getUse(state.args[0], data)._encode(item, reporter);
|
|
}, child));
|
|
} else if (state.use !== null) {
|
|
result = this._getUse(state.use, parent)._encode(data, reporter);
|
|
} else {
|
|
content = this._encodePrimitive(state.tag, data);
|
|
primitive = true;
|
|
}
|
|
}
|
|
|
|
// Encode data itself
|
|
var result;
|
|
if (!state.any && state.choice === null) {
|
|
var tag = state.implicit !== null ? state.implicit : state.tag;
|
|
var cls = state.implicit === null ? 'universal' : 'context';
|
|
|
|
if (tag === null) {
|
|
if (state.use === null)
|
|
reporter.error('Tag could be omitted only for .use()');
|
|
} else {
|
|
if (state.use === null)
|
|
result = this._encodeComposite(tag, primitive, cls, content);
|
|
}
|
|
}
|
|
|
|
// Wrap in explicit
|
|
if (state.explicit !== null)
|
|
result = this._encodeComposite(state.explicit, false, 'context', result);
|
|
|
|
return result;
|
|
};
|
|
|
|
Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
|
|
var state = this._baseState;
|
|
|
|
var node = state.choice[data.type];
|
|
if (!node) {
|
|
assert(
|
|
false,
|
|
data.type + ' not found in ' +
|
|
JSON.stringify(Object.keys(state.choice)));
|
|
}
|
|
return node._encode(data.value, reporter);
|
|
};
|
|
|
|
Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
|
|
var state = this._baseState;
|
|
|
|
if (/str$/.test(tag))
|
|
return this._encodeStr(data, tag);
|
|
else if (tag === 'objid' && state.args)
|
|
return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
|
|
else if (tag === 'objid')
|
|
return this._encodeObjid(data, null, null);
|
|
else if (tag === 'gentime' || tag === 'utctime')
|
|
return this._encodeTime(data, tag);
|
|
else if (tag === 'null_')
|
|
return this._encodeNull();
|
|
else if (tag === 'int' || tag === 'enum')
|
|
return this._encodeInt(data, state.args && state.reverseArgs[0]);
|
|
else if (tag === 'bool')
|
|
return this._encodeBool(data);
|
|
else if (tag === 'objDesc')
|
|
return this._encodeStr(data, tag);
|
|
else
|
|
throw new Error('Unsupported tag: ' + tag);
|
|
};
|
|
|
|
Node.prototype._isNumstr = function isNumstr(str) {
|
|
return /^[0-9 ]*$/.test(str);
|
|
};
|
|
|
|
Node.prototype._isPrintstr = function isPrintstr(str) {
|
|
return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str);
|
|
};
|
|
|
|
},{"../base":4,"minimalistic-assert":104}],6:[function(require,module,exports){
|
|
var inherits = require('inherits');
|
|
|
|
function Reporter(options) {
|
|
this._reporterState = {
|
|
obj: null,
|
|
path: [],
|
|
options: options || {},
|
|
errors: []
|
|
};
|
|
}
|
|
exports.Reporter = Reporter;
|
|
|
|
Reporter.prototype.isError = function isError(obj) {
|
|
return obj instanceof ReporterError;
|
|
};
|
|
|
|
Reporter.prototype.save = function save() {
|
|
var state = this._reporterState;
|
|
|
|
return { obj: state.obj, pathLen: state.path.length };
|
|
};
|
|
|
|
Reporter.prototype.restore = function restore(data) {
|
|
var state = this._reporterState;
|
|
|
|
state.obj = data.obj;
|
|
state.path = state.path.slice(0, data.pathLen);
|
|
};
|
|
|
|
Reporter.prototype.enterKey = function enterKey(key) {
|
|
return this._reporterState.path.push(key);
|
|
};
|
|
|
|
Reporter.prototype.exitKey = function exitKey(index) {
|
|
var state = this._reporterState;
|
|
|
|
state.path = state.path.slice(0, index - 1);
|
|
};
|
|
|
|
Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
|
|
var state = this._reporterState;
|
|
|
|
this.exitKey(index);
|
|
if (state.obj !== null)
|
|
state.obj[key] = value;
|
|
};
|
|
|
|
Reporter.prototype.path = function path() {
|
|
return this._reporterState.path.join('/');
|
|
};
|
|
|
|
Reporter.prototype.enterObject = function enterObject() {
|
|
var state = this._reporterState;
|
|
|
|
var prev = state.obj;
|
|
state.obj = {};
|
|
return prev;
|
|
};
|
|
|
|
Reporter.prototype.leaveObject = function leaveObject(prev) {
|
|
var state = this._reporterState;
|
|
|
|
var now = state.obj;
|
|
state.obj = prev;
|
|
return now;
|
|
};
|
|
|
|
Reporter.prototype.error = function error(msg) {
|
|
var err;
|
|
var state = this._reporterState;
|
|
|
|
var inherited = msg instanceof ReporterError;
|
|
if (inherited) {
|
|
err = msg;
|
|
} else {
|
|
err = new ReporterError(state.path.map(function(elem) {
|
|
return '[' + JSON.stringify(elem) + ']';
|
|
}).join(''), msg.message || msg, msg.stack);
|
|
}
|
|
|
|
if (!state.options.partial)
|
|
throw err;
|
|
|
|
if (!inherited)
|
|
state.errors.push(err);
|
|
|
|
return err;
|
|
};
|
|
|
|
Reporter.prototype.wrapResult = function wrapResult(result) {
|
|
var state = this._reporterState;
|
|
if (!state.options.partial)
|
|
return result;
|
|
|
|
return {
|
|
result: this.isError(result) ? null : result,
|
|
errors: state.errors
|
|
};
|
|
};
|
|
|
|
function ReporterError(path, msg) {
|
|
this.path = path;
|
|
this.rethrow(msg);
|
|
};
|
|
inherits(ReporterError, Error);
|
|
|
|
ReporterError.prototype.rethrow = function rethrow(msg) {
|
|
this.message = msg + ' at: ' + (this.path || '(shallow)');
|
|
if (Error.captureStackTrace)
|
|
Error.captureStackTrace(this, ReporterError);
|
|
|
|
if (!this.stack) {
|
|
try {
|
|
// IE only adds stack when thrown
|
|
throw new Error(this.message);
|
|
} catch (e) {
|
|
this.stack = e.stack;
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
|
|
},{"inherits":100}],7:[function(require,module,exports){
|
|
var constants = require('../constants');
|
|
|
|
exports.tagClass = {
|
|
0: 'universal',
|
|
1: 'application',
|
|
2: 'context',
|
|
3: 'private'
|
|
};
|
|
exports.tagClassByName = constants._reverse(exports.tagClass);
|
|
|
|
exports.tag = {
|
|
0x00: 'end',
|
|
0x01: 'bool',
|
|
0x02: 'int',
|
|
0x03: 'bitstr',
|
|
0x04: 'octstr',
|
|
0x05: 'null_',
|
|
0x06: 'objid',
|
|
0x07: 'objDesc',
|
|
0x08: 'external',
|
|
0x09: 'real',
|
|
0x0a: 'enum',
|
|
0x0b: 'embed',
|
|
0x0c: 'utf8str',
|
|
0x0d: 'relativeOid',
|
|
0x10: 'seq',
|
|
0x11: 'set',
|
|
0x12: 'numstr',
|
|
0x13: 'printstr',
|
|
0x14: 't61str',
|
|
0x15: 'videostr',
|
|
0x16: 'ia5str',
|
|
0x17: 'utctime',
|
|
0x18: 'gentime',
|
|
0x19: 'graphstr',
|
|
0x1a: 'iso646str',
|
|
0x1b: 'genstr',
|
|
0x1c: 'unistr',
|
|
0x1d: 'charstr',
|
|
0x1e: 'bmpstr'
|
|
};
|
|
exports.tagByName = constants._reverse(exports.tag);
|
|
|
|
},{"../constants":8}],8:[function(require,module,exports){
|
|
var constants = exports;
|
|
|
|
// Helper
|
|
constants._reverse = function reverse(map) {
|
|
var res = {};
|
|
|
|
Object.keys(map).forEach(function(key) {
|
|
// Convert key to integer if it is stringified
|
|
if ((key | 0) == key)
|
|
key = key | 0;
|
|
|
|
var value = map[key];
|
|
res[value] = key;
|
|
});
|
|
|
|
return res;
|
|
};
|
|
|
|
constants.der = require('./der');
|
|
|
|
},{"./der":7}],9:[function(require,module,exports){
|
|
var inherits = require('inherits');
|
|
|
|
var asn1 = require('../../asn1');
|
|
var base = asn1.base;
|
|
var bignum = asn1.bignum;
|
|
|
|
// Import DER constants
|
|
var der = asn1.constants.der;
|
|
|
|
function DERDecoder(entity) {
|
|
this.enc = 'der';
|
|
this.name = entity.name;
|
|
this.entity = entity;
|
|
|
|
// Construct base tree
|
|
this.tree = new DERNode();
|
|
this.tree._init(entity.body);
|
|
};
|
|
module.exports = DERDecoder;
|
|
|
|
DERDecoder.prototype.decode = function decode(data, options) {
|
|
if (!(data instanceof base.DecoderBuffer))
|
|
data = new base.DecoderBuffer(data, options);
|
|
|
|
return this.tree._decode(data, options);
|
|
};
|
|
|
|
// Tree methods
|
|
|
|
function DERNode(parent) {
|
|
base.Node.call(this, 'der', parent);
|
|
}
|
|
inherits(DERNode, base.Node);
|
|
|
|
DERNode.prototype._peekTag = function peekTag(buffer, tag, any) {
|
|
if (buffer.isEmpty())
|
|
return false;
|
|
|
|
var state = buffer.save();
|
|
var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"');
|
|
if (buffer.isError(decodedTag))
|
|
return decodedTag;
|
|
|
|
buffer.restore(state);
|
|
|
|
return decodedTag.tag === tag || decodedTag.tagStr === tag ||
|
|
(decodedTag.tagStr + 'of') === tag || any;
|
|
};
|
|
|
|
DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {
|
|
var decodedTag = derDecodeTag(buffer,
|
|
'Failed to decode tag of "' + tag + '"');
|
|
if (buffer.isError(decodedTag))
|
|
return decodedTag;
|
|
|
|
var len = derDecodeLen(buffer,
|
|
decodedTag.primitive,
|
|
'Failed to get length of "' + tag + '"');
|
|
|
|
// Failure
|
|
if (buffer.isError(len))
|
|
return len;
|
|
|
|
if (!any &&
|
|
decodedTag.tag !== tag &&
|
|
decodedTag.tagStr !== tag &&
|
|
decodedTag.tagStr + 'of' !== tag) {
|
|
return buffer.error('Failed to match tag: "' + tag + '"');
|
|
}
|
|
|
|
if (decodedTag.primitive || len !== null)
|
|
return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
|
|
|
|
// Indefinite length... find END tag
|
|
var state = buffer.save();
|
|
var res = this._skipUntilEnd(
|
|
buffer,
|
|
'Failed to skip indefinite length body: "' + this.tag + '"');
|
|
if (buffer.isError(res))
|
|
return res;
|
|
|
|
len = buffer.offset - state.offset;
|
|
buffer.restore(state);
|
|
return buffer.skip(len, 'Failed to match body of: "' + tag + '"');
|
|
};
|
|
|
|
DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {
|
|
while (true) {
|
|
var tag = derDecodeTag(buffer, fail);
|
|
if (buffer.isError(tag))
|
|
return tag;
|
|
var len = derDecodeLen(buffer, tag.primitive, fail);
|
|
if (buffer.isError(len))
|
|
return len;
|
|
|
|
var res;
|
|
if (tag.primitive || len !== null)
|
|
res = buffer.skip(len)
|
|
else
|
|
res = this._skipUntilEnd(buffer, fail);
|
|
|
|
// Failure
|
|
if (buffer.isError(res))
|
|
return res;
|
|
|
|
if (tag.tagStr === 'end')
|
|
break;
|
|
}
|
|
};
|
|
|
|
DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,
|
|
options) {
|
|
var result = [];
|
|
while (!buffer.isEmpty()) {
|
|
var possibleEnd = this._peekTag(buffer, 'end');
|
|
if (buffer.isError(possibleEnd))
|
|
return possibleEnd;
|
|
|
|
var res = decoder.decode(buffer, 'der', options);
|
|
if (buffer.isError(res) && possibleEnd)
|
|
break;
|
|
result.push(res);
|
|
}
|
|
return result;
|
|
};
|
|
|
|
DERNode.prototype._decodeStr = function decodeStr(buffer, tag) {
|
|
if (tag === 'bitstr') {
|
|
var unused = buffer.readUInt8();
|
|
if (buffer.isError(unused))
|
|
return unused;
|
|
return { unused: unused, data: buffer.raw() };
|
|
} else if (tag === 'bmpstr') {
|
|
var raw = buffer.raw();
|
|
if (raw.length % 2 === 1)
|
|
return buffer.error('Decoding of string type: bmpstr length mismatch');
|
|
|
|
var str = '';
|
|
for (var i = 0; i < raw.length / 2; i++) {
|
|
str += String.fromCharCode(raw.readUInt16BE(i * 2));
|
|
}
|
|
return str;
|
|
} else if (tag === 'numstr') {
|
|
var numstr = buffer.raw().toString('ascii');
|
|
if (!this._isNumstr(numstr)) {
|
|
return buffer.error('Decoding of string type: ' +
|
|
'numstr unsupported characters');
|
|
}
|
|
return numstr;
|
|
} else if (tag === 'octstr') {
|
|
return buffer.raw();
|
|
} else if (tag === 'objDesc') {
|
|
return buffer.raw();
|
|
} else if (tag === 'printstr') {
|
|
var printstr = buffer.raw().toString('ascii');
|
|
if (!this._isPrintstr(printstr)) {
|
|
return buffer.error('Decoding of string type: ' +
|
|
'printstr unsupported characters');
|
|
}
|
|
return printstr;
|
|
} else if (/str$/.test(tag)) {
|
|
return buffer.raw().toString();
|
|
} else {
|
|
return buffer.error('Decoding of string type: ' + tag + ' unsupported');
|
|
}
|
|
};
|
|
|
|
DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {
|
|
var result;
|
|
var identifiers = [];
|
|
var ident = 0;
|
|
while (!buffer.isEmpty()) {
|
|
var subident = buffer.readUInt8();
|
|
ident <<= 7;
|
|
ident |= subident & 0x7f;
|
|
if ((subident & 0x80) === 0) {
|
|
identifiers.push(ident);
|
|
ident = 0;
|
|
}
|
|
}
|
|
if (subident & 0x80)
|
|
identifiers.push(ident);
|
|
|
|
var first = (identifiers[0] / 40) | 0;
|
|
var second = identifiers[0] % 40;
|
|
|
|
if (relative)
|
|
result = identifiers;
|
|
else
|
|
result = [first, second].concat(identifiers.slice(1));
|
|
|
|
if (values) {
|
|
var tmp = values[result.join(' ')];
|
|
if (tmp === undefined)
|
|
tmp = values[result.join('.')];
|
|
if (tmp !== undefined)
|
|
result = tmp;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
DERNode.prototype._decodeTime = function decodeTime(buffer, tag) {
|
|
var str = buffer.raw().toString();
|
|
if (tag === 'gentime') {
|
|
var year = str.slice(0, 4) | 0;
|
|
var mon = str.slice(4, 6) | 0;
|
|
var day = str.slice(6, 8) | 0;
|
|
var hour = str.slice(8, 10) | 0;
|
|
var min = str.slice(10, 12) | 0;
|
|
var sec = str.slice(12, 14) | 0;
|
|
} else if (tag === 'utctime') {
|
|
var year = str.slice(0, 2) | 0;
|
|
var mon = str.slice(2, 4) | 0;
|
|
var day = str.slice(4, 6) | 0;
|
|
var hour = str.slice(6, 8) | 0;
|
|
var min = str.slice(8, 10) | 0;
|
|
var sec = str.slice(10, 12) | 0;
|
|
if (year < 70)
|
|
year = 2000 + year;
|
|
else
|
|
year = 1900 + year;
|
|
} else {
|
|
return buffer.error('Decoding ' + tag + ' time is not supported yet');
|
|
}
|
|
|
|
return Date.UTC(year, mon - 1, day, hour, min, sec, 0);
|
|
};
|
|
|
|
DERNode.prototype._decodeNull = function decodeNull(buffer) {
|
|
return null;
|
|
};
|
|
|
|
DERNode.prototype._decodeBool = function decodeBool(buffer) {
|
|
var res = buffer.readUInt8();
|
|
if (buffer.isError(res))
|
|
return res;
|
|
else
|
|
return res !== 0;
|
|
};
|
|
|
|
DERNode.prototype._decodeInt = function decodeInt(buffer, values) {
|
|
// Bigint, return as it is (assume big endian)
|
|
var raw = buffer.raw();
|
|
var res = new bignum(raw);
|
|
|
|
if (values)
|
|
res = values[res.toString(10)] || res;
|
|
|
|
return res;
|
|
};
|
|
|
|
DERNode.prototype._use = function use(entity, obj) {
|
|
if (typeof entity === 'function')
|
|
entity = entity(obj);
|
|
return entity._getDecoder('der').tree;
|
|
};
|
|
|
|
// Utility methods
|
|
|
|
function derDecodeTag(buf, fail) {
|
|
var tag = buf.readUInt8(fail);
|
|
if (buf.isError(tag))
|
|
return tag;
|
|
|
|
var cls = der.tagClass[tag >> 6];
|
|
var primitive = (tag & 0x20) === 0;
|
|
|
|
// Multi-octet tag - load
|
|
if ((tag & 0x1f) === 0x1f) {
|
|
var oct = tag;
|
|
tag = 0;
|
|
while ((oct & 0x80) === 0x80) {
|
|
oct = buf.readUInt8(fail);
|
|
if (buf.isError(oct))
|
|
return oct;
|
|
|
|
tag <<= 7;
|
|
tag |= oct & 0x7f;
|
|
}
|
|
} else {
|
|
tag &= 0x1f;
|
|
}
|
|
var tagStr = der.tag[tag];
|
|
|
|
return {
|
|
cls: cls,
|
|
primitive: primitive,
|
|
tag: tag,
|
|
tagStr: tagStr
|
|
};
|
|
}
|
|
|
|
function derDecodeLen(buf, primitive, fail) {
|
|
var len = buf.readUInt8(fail);
|
|
if (buf.isError(len))
|
|
return len;
|
|
|
|
// Indefinite form
|
|
if (!primitive && len === 0x80)
|
|
return null;
|
|
|
|
// Definite form
|
|
if ((len & 0x80) === 0) {
|
|
// Short form
|
|
return len;
|
|
}
|
|
|
|
// Long form
|
|
var num = len & 0x7f;
|
|
if (num > 4)
|
|
return buf.error('length octect is too long');
|
|
|
|
len = 0;
|
|
for (var i = 0; i < num; i++) {
|
|
len <<= 8;
|
|
var j = buf.readUInt8(fail);
|
|
if (buf.isError(j))
|
|
return j;
|
|
len |= j;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
},{"../../asn1":1,"inherits":100}],10:[function(require,module,exports){
|
|
var decoders = exports;
|
|
|
|
decoders.der = require('./der');
|
|
decoders.pem = require('./pem');
|
|
|
|
},{"./der":9,"./pem":11}],11:[function(require,module,exports){
|
|
var inherits = require('inherits');
|
|
var Buffer = require('buffer').Buffer;
|
|
|
|
var DERDecoder = require('./der');
|
|
|
|
function PEMDecoder(entity) {
|
|
DERDecoder.call(this, entity);
|
|
this.enc = 'pem';
|
|
};
|
|
inherits(PEMDecoder, DERDecoder);
|
|
module.exports = PEMDecoder;
|
|
|
|
PEMDecoder.prototype.decode = function decode(data, options) {
|
|
var lines = data.toString().split(/[\r\n]+/g);
|
|
|
|
var label = options.label.toUpperCase();
|
|
|
|
var re = /^-----(BEGIN|END) ([^-]+)-----$/;
|
|
var start = -1;
|
|
var end = -1;
|
|
for (var i = 0; i < lines.length; i++) {
|
|
var match = lines[i].match(re);
|
|
if (match === null)
|
|
continue;
|
|
|
|
if (match[2] !== label)
|
|
continue;
|
|
|
|
if (start === -1) {
|
|
if (match[1] !== 'BEGIN')
|
|
break;
|
|
start = i;
|
|
} else {
|
|
if (match[1] !== 'END')
|
|
break;
|
|
end = i;
|
|
break;
|
|
}
|
|
}
|
|
if (start === -1 || end === -1)
|
|
throw new Error('PEM section not found for: ' + label);
|
|
|
|
var base64 = lines.slice(start + 1, end).join('');
|
|
// Remove excessive symbols
|
|
base64.replace(/[^a-z0-9\+\/=]+/gi, '');
|
|
|
|
var input = new Buffer(base64, 'base64');
|
|
return DERDecoder.prototype.decode.call(this, input, options);
|
|
};
|
|
|
|
},{"./der":9,"buffer":48,"inherits":100}],12:[function(require,module,exports){
|
|
var inherits = require('inherits');
|
|
var Buffer = require('buffer').Buffer;
|
|
|
|
var asn1 = require('../../asn1');
|
|
var base = asn1.base;
|
|
|
|
// Import DER constants
|
|
var der = asn1.constants.der;
|
|
|
|
function DEREncoder(entity) {
|
|
this.enc = 'der';
|
|
this.name = entity.name;
|
|
this.entity = entity;
|
|
|
|
// Construct base tree
|
|
this.tree = new DERNode();
|
|
this.tree._init(entity.body);
|
|
};
|
|
module.exports = DEREncoder;
|
|
|
|
DEREncoder.prototype.encode = function encode(data, reporter) {
|
|
return this.tree._encode(data, reporter).join();
|
|
};
|
|
|
|
// Tree methods
|
|
|
|
function DERNode(parent) {
|
|
base.Node.call(this, 'der', parent);
|
|
}
|
|
inherits(DERNode, base.Node);
|
|
|
|
DERNode.prototype._encodeComposite = function encodeComposite(tag,
|
|
primitive,
|
|
cls,
|
|
content) {
|
|
var encodedTag = encodeTag(tag, primitive, cls, this.reporter);
|
|
|
|
// Short form
|
|
if (content.length < 0x80) {
|
|
var header = new Buffer(2);
|
|
header[0] = encodedTag;
|
|
header[1] = content.length;
|
|
return this._createEncoderBuffer([ header, content ]);
|
|
}
|
|
|
|
// Long form
|
|
// Count octets required to store length
|
|
var lenOctets = 1;
|
|
for (var i = content.length; i >= 0x100; i >>= 8)
|
|
lenOctets++;
|
|
|
|
var header = new Buffer(1 + 1 + lenOctets);
|
|
header[0] = encodedTag;
|
|
header[1] = 0x80 | lenOctets;
|
|
|
|
for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)
|
|
header[i] = j & 0xff;
|
|
|
|
return this._createEncoderBuffer([ header, content ]);
|
|
};
|
|
|
|
DERNode.prototype._encodeStr = function encodeStr(str, tag) {
|
|
if (tag === 'bitstr') {
|
|
return this._createEncoderBuffer([ str.unused | 0, str.data ]);
|
|
} else if (tag === 'bmpstr') {
|
|
var buf = new Buffer(str.length * 2);
|
|
for (var i = 0; i < str.length; i++) {
|
|
buf.writeUInt16BE(str.charCodeAt(i), i * 2);
|
|
}
|
|
return this._createEncoderBuffer(buf);
|
|
} else if (tag === 'numstr') {
|
|
if (!this._isNumstr(str)) {
|
|
return this.reporter.error('Encoding of string type: numstr supports ' +
|
|
'only digits and space');
|
|
}
|
|
return this._createEncoderBuffer(str);
|
|
} else if (tag === 'printstr') {
|
|
if (!this._isPrintstr(str)) {
|
|
return this.reporter.error('Encoding of string type: printstr supports ' +
|
|
'only latin upper and lower case letters, ' +
|
|
'digits, space, apostrophe, left and rigth ' +
|
|
'parenthesis, plus sign, comma, hyphen, ' +
|
|
'dot, slash, colon, equal sign, ' +
|
|
'question mark');
|
|
}
|
|
return this._createEncoderBuffer(str);
|
|
} else if (/str$/.test(tag)) {
|
|
return this._createEncoderBuffer(str);
|
|
} else if (tag === 'objDesc') {
|
|
return this._createEncoderBuffer(str);
|
|
} else {
|
|
return this.reporter.error('Encoding of string type: ' + tag +
|
|
' unsupported');
|
|
}
|
|
};
|
|
|
|
DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {
|
|
if (typeof id === 'string') {
|
|
if (!values)
|
|
return this.reporter.error('string objid given, but no values map found');
|
|
if (!values.hasOwnProperty(id))
|
|
return this.reporter.error('objid not found in values map');
|
|
id = values[id].split(/[\s\.]+/g);
|
|
for (var i = 0; i < id.length; i++)
|
|
id[i] |= 0;
|
|
} else if (Array.isArray(id)) {
|
|
id = id.slice();
|
|
for (var i = 0; i < id.length; i++)
|
|
id[i] |= 0;
|
|
}
|
|
|
|
if (!Array.isArray(id)) {
|
|
return this.reporter.error('objid() should be either array or string, ' +
|
|
'got: ' + JSON.stringify(id));
|
|
}
|
|
|
|
if (!relative) {
|
|
if (id[1] >= 40)
|
|
return this.reporter.error('Second objid identifier OOB');
|
|
id.splice(0, 2, id[0] * 40 + id[1]);
|
|
}
|
|
|
|
// Count number of octets
|
|
var size = 0;
|
|
for (var i = 0; i < id.length; i++) {
|
|
var ident = id[i];
|
|
for (size++; ident >= 0x80; ident >>= 7)
|
|
size++;
|
|
}
|
|
|
|
var objid = new Buffer(size);
|
|
var offset = objid.length - 1;
|
|
for (var i = id.length - 1; i >= 0; i--) {
|
|
var ident = id[i];
|
|
objid[offset--] = ident & 0x7f;
|
|
while ((ident >>= 7) > 0)
|
|
objid[offset--] = 0x80 | (ident & 0x7f);
|
|
}
|
|
|
|
return this._createEncoderBuffer(objid);
|
|
};
|
|
|
|
function two(num) {
|
|
if (num < 10)
|
|
return '0' + num;
|
|
else
|
|
return num;
|
|
}
|
|
|
|
DERNode.prototype._encodeTime = function encodeTime(time, tag) {
|
|
var str;
|
|
var date = new Date(time);
|
|
|
|
if (tag === 'gentime') {
|
|
str = [
|
|
two(date.getFullYear()),
|
|
two(date.getUTCMonth() + 1),
|
|
two(date.getUTCDate()),
|
|
two(date.getUTCHours()),
|
|
two(date.getUTCMinutes()),
|
|
two(date.getUTCSeconds()),
|
|
'Z'
|
|
].join('');
|
|
} else if (tag === 'utctime') {
|
|
str = [
|
|
two(date.getFullYear() % 100),
|
|
two(date.getUTCMonth() + 1),
|
|
two(date.getUTCDate()),
|
|
two(date.getUTCHours()),
|
|
two(date.getUTCMinutes()),
|
|
two(date.getUTCSeconds()),
|
|
'Z'
|
|
].join('');
|
|
} else {
|
|
this.reporter.error('Encoding ' + tag + ' time is not supported yet');
|
|
}
|
|
|
|
return this._encodeStr(str, 'octstr');
|
|
};
|
|
|
|
DERNode.prototype._encodeNull = function encodeNull() {
|
|
return this._createEncoderBuffer('');
|
|
};
|
|
|
|
DERNode.prototype._encodeInt = function encodeInt(num, values) {
|
|
if (typeof num === 'string') {
|
|
if (!values)
|
|
return this.reporter.error('String int or enum given, but no values map');
|
|
if (!values.hasOwnProperty(num)) {
|
|
return this.reporter.error('Values map doesn\'t contain: ' +
|
|
JSON.stringify(num));
|
|
}
|
|
num = values[num];
|
|
}
|
|
|
|
// Bignum, assume big endian
|
|
if (typeof num !== 'number' && !Buffer.isBuffer(num)) {
|
|
var numArray = num.toArray();
|
|
if (!num.sign && numArray[0] & 0x80) {
|
|
numArray.unshift(0);
|
|
}
|
|
num = new Buffer(numArray);
|
|
}
|
|
|
|
if (Buffer.isBuffer(num)) {
|
|
var size = num.length;
|
|
if (num.length === 0)
|
|
size++;
|
|
|
|
var out = new Buffer(size);
|
|
num.copy(out);
|
|
if (num.length === 0)
|
|
out[0] = 0
|
|
return this._createEncoderBuffer(out);
|
|
}
|
|
|
|
if (num < 0x80)
|
|
return this._createEncoderBuffer(num);
|
|
|
|
if (num < 0x100)
|
|
return this._createEncoderBuffer([0, num]);
|
|
|
|
var size = 1;
|
|
for (var i = num; i >= 0x100; i >>= 8)
|
|
size++;
|
|
|
|
var out = new Array(size);
|
|
for (var i = out.length - 1; i >= 0; i--) {
|
|
out[i] = num & 0xff;
|
|
num >>= 8;
|
|
}
|
|
if(out[0] & 0x80) {
|
|
out.unshift(0);
|
|
}
|
|
|
|
return this._createEncoderBuffer(new Buffer(out));
|
|
};
|
|
|
|
DERNode.prototype._encodeBool = function encodeBool(value) {
|
|
return this._createEncoderBuffer(value ? 0xff : 0);
|
|
};
|
|
|
|
DERNode.prototype._use = function use(entity, obj) {
|
|
if (typeof entity === 'function')
|
|
entity = entity(obj);
|
|
return entity._getEncoder('der').tree;
|
|
};
|
|
|
|
DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {
|
|
var state = this._baseState;
|
|
var i;
|
|
if (state['default'] === null)
|
|
return false;
|
|
|
|
var data = dataBuffer.join();
|
|
if (state.defaultBuffer === undefined)
|
|
state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();
|
|
|
|
if (data.length !== state.defaultBuffer.length)
|
|
return false;
|
|
|
|
for (i=0; i < data.length; i++)
|
|
if (data[i] !== state.defaultBuffer[i])
|
|
return false;
|
|
|
|
return true;
|
|
};
|
|
|
|
// Utility methods
|
|
|
|
function encodeTag(tag, primitive, cls, reporter) {
|
|
var res;
|
|
|
|
if (tag === 'seqof')
|
|
tag = 'seq';
|
|
else if (tag === 'setof')
|
|
tag = 'set';
|
|
|
|
if (der.tagByName.hasOwnProperty(tag))
|
|
res = der.tagByName[tag];
|
|
else if (typeof tag === 'number' && (tag | 0) === tag)
|
|
res = tag;
|
|
else
|
|
return reporter.error('Unknown tag: ' + tag);
|
|
|
|
if (res >= 0x1f)
|
|
return reporter.error('Multi-octet tag encoding unsupported');
|
|
|
|
if (!primitive)
|
|
res |= 0x20;
|
|
|
|
res |= (der.tagClassByName[cls || 'universal'] << 6);
|
|
|
|
return res;
|
|
}
|
|
|
|
},{"../../asn1":1,"buffer":48,"inherits":100}],13:[function(require,module,exports){
|
|
var encoders = exports;
|
|
|
|
encoders.der = require('./der');
|
|
encoders.pem = require('./pem');
|
|
|
|
},{"./der":12,"./pem":14}],14:[function(require,module,exports){
|
|
var inherits = require('inherits');
|
|
|
|
var DEREncoder = require('./der');
|
|
|
|
function PEMEncoder(entity) {
|
|
DEREncoder.call(this, entity);
|
|
this.enc = 'pem';
|
|
};
|
|
inherits(PEMEncoder, DEREncoder);
|
|
module.exports = PEMEncoder;
|
|
|
|
PEMEncoder.prototype.encode = function encode(data, options) {
|
|
var buf = DEREncoder.prototype.encode.call(this, data);
|
|
|
|
var p = buf.toString('base64');
|
|
var out = [ '-----BEGIN ' + options.label + '-----' ];
|
|
for (var i = 0; i < p.length; i += 64)
|
|
out.push(p.slice(i, i + 64));
|
|
out.push('-----END ' + options.label + '-----');
|
|
return out.join('\n');
|
|
};
|
|
|
|
},{"./der":12,"inherits":100}],15:[function(require,module,exports){
|
|
'use strict'
|
|
|
|
exports.byteLength = byteLength
|
|
exports.toByteArray = toByteArray
|
|
exports.fromByteArray = fromByteArray
|
|
|
|
var lookup = []
|
|
var revLookup = []
|
|
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
|
|
|
|
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
|
|
for (var i = 0, len = code.length; i < len; ++i) {
|
|
lookup[i] = code[i]
|
|
revLookup[code.charCodeAt(i)] = i
|
|
}
|
|
|
|
// Support decoding URL-safe base64 strings, as Node.js does.
|
|
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
|
|
revLookup['-'.charCodeAt(0)] = 62
|
|
revLookup['_'.charCodeAt(0)] = 63
|
|
|
|
function getLens (b64) {
|
|
var len = b64.length
|
|
|
|
if (len % 4 > 0) {
|
|
throw new Error('Invalid string. Length must be a multiple of 4')
|
|
}
|
|
|
|
// Trim off extra bytes after placeholder bytes are found
|
|
// See: https://github.com/beatgammit/base64-js/issues/42
|
|
var validLen = b64.indexOf('=')
|
|
if (validLen === -1) validLen = len
|
|
|
|
var placeHoldersLen = validLen === len
|
|
? 0
|
|
: 4 - (validLen % 4)
|
|
|
|
return [validLen, placeHoldersLen]
|
|
}
|
|
|
|
// base64 is 4/3 + up to two characters of the original data
|
|
function byteLength (b64) {
|
|
var lens = getLens(b64)
|
|
var validLen = lens[0]
|
|
var placeHoldersLen = lens[1]
|
|
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
|
|
}
|
|
|
|
function _byteLength (b64, validLen, placeHoldersLen) {
|
|
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
|
|
}
|
|
|
|
function toByteArray (b64) {
|
|
var tmp
|
|
var lens = getLens(b64)
|
|
var validLen = lens[0]
|
|
var placeHoldersLen = lens[1]
|
|
|
|
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
|
|
|
|
var curByte = 0
|
|
|
|
// if there are placeholders, only get up to the last complete 4 chars
|
|
var len = placeHoldersLen > 0
|
|
? validLen - 4
|
|
: validLen
|
|
|
|
var i
|
|
for (i = 0; i < len; i += 4) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 18) |
|
|
(revLookup[b64.charCodeAt(i + 1)] << 12) |
|
|
(revLookup[b64.charCodeAt(i + 2)] << 6) |
|
|
revLookup[b64.charCodeAt(i + 3)]
|
|
arr[curByte++] = (tmp >> 16) & 0xFF
|
|
arr[curByte++] = (tmp >> 8) & 0xFF
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
if (placeHoldersLen === 2) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 2) |
|
|
(revLookup[b64.charCodeAt(i + 1)] >> 4)
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
if (placeHoldersLen === 1) {
|
|
tmp =
|
|
(revLookup[b64.charCodeAt(i)] << 10) |
|
|
(revLookup[b64.charCodeAt(i + 1)] << 4) |
|
|
(revLookup[b64.charCodeAt(i + 2)] >> 2)
|
|
arr[curByte++] = (tmp >> 8) & 0xFF
|
|
arr[curByte++] = tmp & 0xFF
|
|
}
|
|
|
|
return arr
|
|
}
|
|
|
|
function tripletToBase64 (num) {
|
|
return lookup[num >> 18 & 0x3F] +
|
|
lookup[num >> 12 & 0x3F] +
|
|
lookup[num >> 6 & 0x3F] +
|
|
lookup[num & 0x3F]
|
|
}
|
|
|
|
function encodeChunk (uint8, start, end) {
|
|
var tmp
|
|
var output = []
|
|
for (var i = start; i < end; i += 3) {
|
|
tmp =
|
|
((uint8[i] << 16) & 0xFF0000) +
|
|
((uint8[i + 1] << 8) & 0xFF00) +
|
|
(uint8[i + 2] & 0xFF)
|
|
output.push(tripletToBase64(tmp))
|
|
}
|
|
return output.join('')
|
|
}
|
|
|
|
function fromByteArray (uint8) {
|
|
var tmp
|
|
var len = uint8.length
|
|
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
|
|
var parts = []
|
|
var maxChunkLength = 16383 // must be multiple of 3
|
|
|
|
// go through the array every three bytes, we'll deal with trailing stuff later
|
|
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
|
|
parts.push(encodeChunk(
|
|
uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
|
|
))
|
|
}
|
|
|
|
// pad the end with zeros, but make sure to not forget the extra bytes
|
|
if (extraBytes === 1) {
|
|
tmp = uint8[len - 1]
|
|
parts.push(
|
|
lookup[tmp >> 2] +
|
|
lookup[(tmp << 4) & 0x3F] +
|
|
'=='
|
|
)
|
|
} else if (extraBytes === 2) {
|
|
tmp = (uint8[len - 2] << 8) + uint8[len - 1]
|
|
parts.push(
|
|
lookup[tmp >> 10] +
|
|
lookup[(tmp >> 4) & 0x3F] +
|
|
lookup[(tmp << 2) & 0x3F] +
|
|
'='
|
|
)
|
|
}
|
|
|
|
return parts.join('')
|
|
}
|
|
|
|
},{}],16:[function(require,module,exports){
|
|
(function (module, exports) {
|
|
'use strict';
|
|
|
|
// Utils
|
|
function assert (val, msg) {
|
|
if (!val) throw new Error(msg || 'Assertion failed');
|
|
}
|
|
|
|
// Could use `inherits` module, but don't want to move from single file
|
|
// architecture yet.
|
|
function inherits (ctor, superCtor) {
|
|
ctor.super_ = superCtor;
|
|
var TempCtor = function () {};
|
|
TempCtor.prototype = superCtor.prototype;
|
|
ctor.prototype = new TempCtor();
|
|
ctor.prototype.constructor = ctor;
|
|
}
|
|
|
|
// BN
|
|
|
|
function BN (number, base, endian) {
|
|
if (BN.isBN(number)) {
|
|
return number;
|
|
}
|
|
|
|
this.negative = 0;
|
|
this.words = null;
|
|
this.length = 0;
|
|
|
|
// Reduction context
|
|
this.red = null;
|
|
|
|
if (number !== null) {
|
|
if (base === 'le' || base === 'be') {
|
|
endian = base;
|
|
base = 10;
|
|
}
|
|
|
|
this._init(number || 0, base || 10, endian || 'be');
|
|
}
|
|
}
|
|
if (typeof module === 'object') {
|
|
module.exports = BN;
|
|
} else {
|
|
exports.BN = BN;
|
|
}
|
|
|
|
BN.BN = BN;
|
|
BN.wordSize = 26;
|
|
|
|
var Buffer;
|
|
try {
|
|
Buffer = require('buffer').Buffer;
|
|
} catch (e) {
|
|
}
|
|
|
|
BN.isBN = function isBN (num) {
|
|
if (num instanceof BN) {
|
|
return true;
|
|
}
|
|
|
|
return num !== null && typeof num === 'object' &&
|
|
num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
|
|
};
|
|
|
|
BN.max = function max (left, right) {
|
|
if (left.cmp(right) > 0) return left;
|
|
return right;
|
|
};
|
|
|
|
BN.min = function min (left, right) {
|
|
if (left.cmp(right) < 0) return left;
|
|
return right;
|
|
};
|
|
|
|
BN.prototype._init = function init (number, base, endian) {
|
|
if (typeof number === 'number') {
|
|
return this._initNumber(number, base, endian);
|
|
}
|
|
|
|
if (typeof number === 'object') {
|
|
return this._initArray(number, base, endian);
|
|
}
|
|
|
|
if (base === 'hex') {
|
|
base = 16;
|
|
}
|
|
assert(base === (base | 0) && base >= 2 && base <= 36);
|
|
|
|
number = number.toString().replace(/\s+/g, '');
|
|
var start = 0;
|
|
if (number[0] === '-') {
|
|
start++;
|
|
}
|
|
|
|
if (base === 16) {
|
|
this._parseHex(number, start);
|
|
} else {
|
|
this._parseBase(number, base, start);
|
|
}
|
|
|
|
if (number[0] === '-') {
|
|
this.negative = 1;
|
|
}
|
|
|
|
this.strip();
|
|
|
|
if (endian !== 'le') return;
|
|
|
|
this._initArray(this.toArray(), base, endian);
|
|
};
|
|
|
|
BN.prototype._initNumber = function _initNumber (number, base, endian) {
|
|
if (number < 0) {
|
|
this.negative = 1;
|
|
number = -number;
|
|
}
|
|
if (number < 0x4000000) {
|
|
this.words = [ number & 0x3ffffff ];
|
|
this.length = 1;
|
|
} else if (number < 0x10000000000000) {
|
|
this.words = [
|
|
number & 0x3ffffff,
|
|
(number / 0x4000000) & 0x3ffffff
|
|
];
|
|
this.length = 2;
|
|
} else {
|
|
assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
|
|
this.words = [
|
|
number & 0x3ffffff,
|
|
(number / 0x4000000) & 0x3ffffff,
|
|
1
|
|
];
|
|
this.length = 3;
|
|
}
|
|
|
|
if (endian !== 'le') return;
|
|
|
|
// Reverse the bytes
|
|
this._initArray(this.toArray(), base, endian);
|
|
};
|
|
|
|
BN.prototype._initArray = function _initArray (number, base, endian) {
|
|
// Perhaps a Uint8Array
|
|
assert(typeof number.length === 'number');
|
|
if (number.length <= 0) {
|
|
this.words = [ 0 ];
|
|
this.length = 1;
|
|
return this;
|
|
}
|
|
|
|
this.length = Math.ceil(number.length / 3);
|
|
this.words = new Array(this.length);
|
|
for (var i = 0; i < this.length; i++) {
|
|
this.words[i] = 0;
|
|
}
|
|
|
|
var j, w;
|
|
var off = 0;
|
|
if (endian === 'be') {
|
|
for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
|
|
w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
|
|
this.words[j] |= (w << off) & 0x3ffffff;
|
|
this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
|
|
off += 24;
|
|
if (off >= 26) {
|
|
off -= 26;
|
|
j++;
|
|
}
|
|
}
|
|
} else if (endian === 'le') {
|
|
for (i = 0, j = 0; i < number.length; i += 3) {
|
|
w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
|
|
this.words[j] |= (w << off) & 0x3ffffff;
|
|
this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
|
|
off += 24;
|
|
if (off >= 26) {
|
|
off -= 26;
|
|
j++;
|
|
}
|
|
}
|
|
}
|
|
return this.strip();
|
|
};
|
|
|
|
function parseHex (str, start, end) {
|
|
var r = 0;
|
|
var len = Math.min(str.length, end);
|
|
for (var i = start; i < len; i++) {
|
|
var c = str.charCodeAt(i) - 48;
|
|
|
|
r <<= 4;
|
|
|
|
// 'a' - 'f'
|
|
if (c >= 49 && c <= 54) {
|
|
r |= c - 49 + 0xa;
|
|
|
|
// 'A' - 'F'
|
|
} else if (c >= 17 && c <= 22) {
|
|
r |= c - 17 + 0xa;
|
|
|
|
// '0' - '9'
|
|
} else {
|
|
r |= c & 0xf;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
BN.prototype._parseHex = function _parseHex (number, start) {
|
|
// Create possibly bigger array to ensure that it fits the number
|
|
this.length = Math.ceil((number.length - start) / 6);
|
|
this.words = new Array(this.length);
|
|
for (var i = 0; i < this.length; i++) {
|
|
this.words[i] = 0;
|
|
}
|
|
|
|
var j, w;
|
|
// Scan 24-bit chunks and add them to the number
|
|
var off = 0;
|
|
for (i = number.length - 6, j = 0; i >= start; i -= 6) {
|
|
w = parseHex(number, i, i + 6);
|
|
this.words[j] |= (w << off) & 0x3ffffff;
|
|
// NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb
|
|
this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
|
|
off += 24;
|
|
if (off >= 26) {
|
|
off -= 26;
|
|
j++;
|
|
}
|
|
}
|
|
if (i + 6 !== start) {
|
|
w = parseHex(number, start, i + 6);
|
|
this.words[j] |= (w << off) & 0x3ffffff;
|
|
this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
|
|
}
|
|
this.strip();
|
|
};
|
|
|
|
function parseBase (str, start, end, mul) {
|
|
var r = 0;
|
|
var len = Math.min(str.length, end);
|
|
for (var i = start; i < len; i++) {
|
|
var c = str.charCodeAt(i) - 48;
|
|
|
|
r *= mul;
|
|
|
|
// 'a'
|
|
if (c >= 49) {
|
|
r += c - 49 + 0xa;
|
|
|
|
// 'A'
|
|
} else if (c >= 17) {
|
|
r += c - 17 + 0xa;
|
|
|
|
// '0' - '9'
|
|
} else {
|
|
r += c;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
BN.prototype._parseBase = function _parseBase (number, base, start) {
|
|
// Initialize as zero
|
|
this.words = [ 0 ];
|
|
this.length = 1;
|
|
|
|
// Find length of limb in base
|
|
for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
|
|
limbLen++;
|
|
}
|
|
limbLen--;
|
|
limbPow = (limbPow / base) | 0;
|
|
|
|
var total = number.length - start;
|
|
var mod = total % limbLen;
|
|
var end = Math.min(total, total - mod) + start;
|
|
|
|
var word = 0;
|
|
for (var i = start; i < end; i += limbLen) {
|
|
word = parseBase(number, i, i + limbLen, base);
|
|
|
|
this.imuln(limbPow);
|
|
if (this.words[0] + word < 0x4000000) {
|
|
this.words[0] += word;
|
|
} else {
|
|
this._iaddn(word);
|
|
}
|
|
}
|
|
|
|
if (mod !== 0) {
|
|
var pow = 1;
|
|
word = parseBase(number, i, number.length, base);
|
|
|
|
for (i = 0; i < mod; i++) {
|
|
pow *= base;
|
|
}
|
|
|
|
this.imuln(pow);
|
|
if (this.words[0] + word < 0x4000000) {
|
|
this.words[0] += word;
|
|
} else {
|
|
this._iaddn(word);
|
|
}
|
|
}
|
|
};
|
|
|
|
BN.prototype.copy = function copy (dest) {
|
|
dest.words = new Array(this.length);
|
|
for (var i = 0; i < this.length; i++) {
|
|
dest.words[i] = this.words[i];
|
|
}
|
|
dest.length = this.length;
|
|
dest.negative = this.negative;
|
|
dest.red = this.red;
|
|
};
|
|
|
|
BN.prototype.clone = function clone () {
|
|
var r = new BN(null);
|
|
this.copy(r);
|
|
return r;
|
|
};
|
|
|
|
BN.prototype._expand = function _expand (size) {
|
|
while (this.length < size) {
|
|
this.words[this.length++] = 0;
|
|
}
|
|
return this;
|
|
};
|
|
|
|
// Remove leading `0` from `this`
|
|
BN.prototype.strip = function strip () {
|
|
while (this.length > 1 && this.words[this.length - 1] === 0) {
|
|
this.length--;
|
|
}
|
|
return this._normSign();
|
|
};
|
|
|
|
BN.prototype._normSign = function _normSign () {
|
|
// -0 = 0
|
|
if (this.length === 1 && this.words[0] === 0) {
|
|
this.negative = 0;
|
|
}
|
|
return this;
|
|
};
|
|
|
|
BN.prototype.inspect = function inspect () {
|
|
return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
|
|
};
|
|
|
|
/*
|
|
|
|
var zeros = [];
|
|
var groupSizes = [];
|
|
var groupBases = [];
|
|
|
|
var s = '';
|
|
var i = -1;
|
|
while (++i < BN.wordSize) {
|
|
zeros[i] = s;
|
|
s += '0';
|
|
}
|
|
groupSizes[0] = 0;
|
|
groupSizes[1] = 0;
|
|
groupBases[0] = 0;
|
|
groupBases[1] = 0;
|
|
var base = 2 - 1;
|
|
while (++base < 36 + 1) {
|
|
var groupSize = 0;
|
|
var groupBase = 1;
|
|
while (groupBase < (1 << BN.wordSize) / base) {
|
|
groupBase *= base;
|
|
groupSize += 1;
|
|
}
|
|
groupSizes[base] = groupSize;
|
|
groupBases[base] = groupBase;
|
|
}
|
|
|
|
*/
|
|
|
|
var zeros = [
|
|
'',
|
|
'0',
|
|
'00',
|
|
'000',
|
|
'0000',
|
|
'00000',
|
|
'000000',
|
|
'0000000',
|
|
'00000000',
|
|
'000000000',
|
|
'0000000000',
|
|
'00000000000',
|
|
'000000000000',
|
|
'0000000000000',
|
|
'00000000000000',
|
|
'000000000000000',
|
|
'0000000000000000',
|
|
'00000000000000000',
|
|
'000000000000000000',
|
|
'0000000000000000000',
|
|
'00000000000000000000',
|
|
'000000000000000000000',
|
|
'0000000000000000000000',
|
|
'00000000000000000000000',
|
|
'000000000000000000000000',
|
|
'0000000000000000000000000'
|
|
];
|
|
|
|
var groupSizes = [
|
|
0, 0,
|
|
25, 16, 12, 11, 10, 9, 8,
|
|
8, 7, 7, 7, 7, 6, 6,
|
|
6, 6, 6, 6, 6, 5, 5,
|
|
5, 5, 5, 5, 5, 5, 5,
|
|
5, 5, 5, 5, 5, 5, 5
|
|
];
|
|
|
|
var groupBases = [
|
|
0, 0,
|
|
33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
|
|
43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
|
|
16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
|
|
6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
|
|
24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
|
|
];
|
|
|
|
BN.prototype.toString = function toString (base, padding) {
|
|
base = base || 10;
|
|
padding = padding | 0 || 1;
|
|
|
|
var out;
|
|
if (base === 16 || base === 'hex') {
|
|
out = '';
|
|
var off = 0;
|
|
var carry = 0;
|
|
for (var i = 0; i < this.length; i++) {
|
|
var w = this.words[i];
|
|
var word = (((w << off) | carry) & 0xffffff).toString(16);
|
|
carry = (w >>> (24 - off)) & 0xffffff;
|
|
if (carry !== 0 || i !== this.length - 1) {
|
|
out = zeros[6 - word.length] + word + out;
|
|
} else {
|
|
out = word + out;
|
|
}
|
|
off += 2;
|
|
if (off >= 26) {
|
|
off -= 26;
|
|
i--;
|
|
}
|
|
}
|
|
if (carry !== 0) {
|
|
out = carry.toString(16) + out;
|
|
}
|
|
while (out.length % padding !== 0) {
|
|
out = '0' + out;
|
|
}
|
|
if (this.negative !== 0) {
|
|
out = '-' + out;
|
|
}
|
|
return out;
|
|
}
|
|
|
|
if (base === (base | 0) && base >= 2 && base <= 36) {
|
|
// var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
|
|
var groupSize = groupSizes[base];
|
|
// var groupBase = Math.pow(base, groupSize);
|
|
var groupBase = groupBases[base];
|
|
out = '';
|
|
var c = this.clone();
|
|
c.negative = 0;
|
|
while (!c.isZero()) {
|
|
var r = c.modn(groupBase).toString(base);
|
|
c = c.idivn(groupBase);
|
|
|
|
if (!c.isZero()) {
|
|
out = zeros[groupSize - r.length] + r + out;
|
|
} else {
|
|
out = r + out;
|
|
}
|
|
}
|
|
if (this.isZero()) {
|
|
out = '0' + out;
|
|
}
|
|
while (out.length % padding !== 0) {
|
|
out = '0' + out;
|
|
}
|
|
if (this.negative !== 0) {
|
|
out = '-' + out;
|
|
}
|
|
return out;
|
|
}
|
|
|
|
assert(false, 'Base should be between 2 and 36');
|
|
};
|
|
|
|
BN.prototype.toNumber = function toNumber () {
|
|
var ret = this.words[0];
|
|
if (this.length === 2) {
|
|
ret += this.words[1] * 0x4000000;
|
|
} else if (this.length === 3 && this.words[2] === 0x01) {
|
|
// NOTE: at this stage it is known that the top bit is set
|
|
ret += 0x10000000000000 + (this.words[1] * 0x4000000);
|
|
} else if (this.length > 2) {
|
|
assert(false, 'Number can only safely store up to 53 bits');
|
|
}
|
|
return (this.negative !== 0) ? -ret : ret;
|
|
};
|
|
|
|
BN.prototype.toJSON = function toJSON () {
|
|
return this.toString(16);
|
|
};
|
|
|
|
BN.prototype.toBuffer = function toBuffer (endian, length) {
|
|
assert(typeof Buffer !== 'undefined');
|
|
return this.toArrayLike(Buffer, endian, length);
|
|
};
|
|
|
|
BN.prototype.toArray = function toArray (endian, length) {
|
|
return this.toArrayLike(Array, endian, length);
|
|
};
|
|
|
|
BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {
|
|
var byteLength = this.byteLength();
|
|
var reqLength = length || Math.max(1, byteLength);
|
|
assert(byteLength <= reqLength, 'byte array longer than desired length');
|
|
assert(reqLength > 0, 'Requested array length <= 0');
|
|
|
|
this.strip();
|
|
var littleEndian = endian === 'le';
|
|
var res = new ArrayType(reqLength);
|
|
|
|
var b, i;
|
|
var q = this.clone();
|
|
if (!littleEndian) {
|
|
// Assume big-endian
|
|
for (i = 0; i < reqLength - byteLength; i++) {
|
|
res[i] = 0;
|
|
}
|
|
|
|
for (i = 0; !q.isZero(); i++) {
|
|
b = q.andln(0xff);
|
|
q.iushrn(8);
|
|
|
|
res[reqLength - i - 1] = b;
|
|
}
|
|
} else {
|
|
for (i = 0; !q.isZero(); i++) {
|
|
b = q.andln(0xff);
|
|
q.iushrn(8);
|
|
|
|
res[i] = b;
|
|
}
|
|
|
|
for (; i < reqLength; i++) {
|
|
res[i] = 0;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
if (Math.clz32) {
|
|
BN.prototype._countBits = function _countBits (w) {
|
|
return 32 - Math.clz32(w);
|
|
};
|
|
} else {
|
|
BN.prototype._countBits = function _countBits (w) {
|
|
var t = w;
|
|
var r = 0;
|
|
if (t >= 0x1000) {
|
|
r += 13;
|
|
t >>>= 13;
|
|
}
|
|
if (t >= 0x40) {
|
|
r += 7;
|
|
t >>>= 7;
|
|
}
|
|
if (t >= 0x8) {
|
|
r += 4;
|
|
t >>>= 4;
|
|
}
|
|
if (t >= 0x02) {
|
|
r += 2;
|
|
t >>>= 2;
|
|
}
|
|
return r + t;
|
|
};
|
|
}
|
|
|
|
BN.prototype._zeroBits = function _zeroBits (w) {
|
|
// Short-cut
|
|
if (w === 0) return 26;
|
|
|
|
var t = w;
|
|
var r = 0;
|
|
if ((t & 0x1fff) === 0) {
|
|
r += 13;
|
|
t >>>= 13;
|
|
}
|
|
if ((t & 0x7f) === 0) {
|
|
r += 7;
|
|
t >>>= 7;
|
|
}
|
|
if ((t & 0xf) === 0) {
|
|
r += 4;
|
|
t >>>= 4;
|
|
}
|
|
if ((t & 0x3) === 0) {
|
|
r += 2;
|
|
t >>>= 2;
|
|
}
|
|
if ((t & 0x1) === 0) {
|
|
r++;
|
|
}
|
|
return r;
|
|
};
|
|
|
|
// Return number of used bits in a BN
|
|
BN.prototype.bitLength = function bitLength () {
|
|
var w = this.words[this.length - 1];
|
|
var hi = this._countBits(w);
|
|
return (this.length - 1) * 26 + hi;
|
|
};
|
|
|
|
function toBitArray (num) {
|
|
var w = new Array(num.bitLength());
|
|
|
|
for (var bit = 0; bit < w.length; bit++) {
|
|
var off = (bit / 26) | 0;
|
|
var wbit = bit % 26;
|
|
|
|
w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;
|
|
}
|
|
|
|
return w;
|
|
}
|
|
|
|
// Number of trailing zero bits
|
|
BN.prototype.zeroBits = function zeroBits () {
|
|
if (this.isZero()) return 0;
|
|
|
|
var r = 0;
|
|
for (var i = 0; i < this.length; i++) {
|
|
var b = this._zeroBits(this.words[i]);
|
|
r += b;
|
|
if (b !== 26) break;
|
|
}
|
|
return r;
|
|
};
|
|
|
|
BN.prototype.byteLength = function byteLength () {
|
|
return Math.ceil(this.bitLength() / 8);
|
|
};
|
|
|
|
BN.prototype.toTwos = function toTwos (width) {
|
|
if (this.negative !== 0) {
|
|
return this.abs().inotn(width).iaddn(1);
|
|
}
|
|
return this.clone();
|
|
};
|
|
|
|
BN.prototype.fromTwos = function fromTwos (width) {
|
|
if (this.testn(width - 1)) {
|
|
return this.notn(width).iaddn(1).ineg();
|
|
}
|
|
return this.clone();
|
|
};
|
|
|
|
BN.prototype.isNeg = function isNeg () {
|
|
return this.negative !== 0;
|
|
};
|
|
|
|
// Return negative clone of `this`
|
|
BN.prototype.neg = function neg () {
|
|
return this.clone().ineg();
|
|
};
|
|
|
|
BN.prototype.ineg = function ineg () {
|
|
if (!this.isZero()) {
|
|
this.negative ^= 1;
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
// Or `num` with `this` in-place
|
|
BN.prototype.iuor = function iuor (num) {
|
|
while (this.length < num.length) {
|
|
this.words[this.length++] = 0;
|
|
}
|
|
|
|
for (var i = 0; i < num.length; i++) {
|
|
this.words[i] = this.words[i] | num.words[i];
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.ior = function ior (num) {
|
|
assert((this.negative | num.negative) === 0);
|
|
return this.iuor(num);
|
|
};
|
|
|
|
// Or `num` with `this`
|
|
BN.prototype.or = function or (num) {
|
|
if (this.length > num.length) return this.clone().ior(num);
|
|
return num.clone().ior(this);
|
|
};
|
|
|
|
BN.prototype.uor = function uor (num) {
|
|
if (this.length > num.length) return this.clone().iuor(num);
|
|
return num.clone().iuor(this);
|
|
};
|
|
|
|
// And `num` with `this` in-place
|
|
BN.prototype.iuand = function iuand (num) {
|
|
// b = min-length(num, this)
|
|
var b;
|
|
if (this.length > num.length) {
|
|
b = num;
|
|
} else {
|
|
b = this;
|
|
}
|
|
|
|
for (var i = 0; i < b.length; i++) {
|
|
this.words[i] = this.words[i] & num.words[i];
|
|
}
|
|
|
|
this.length = b.length;
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.iand = function iand (num) {
|
|
assert((this.negative | num.negative) === 0);
|
|
return this.iuand(num);
|
|
};
|
|
|
|
// And `num` with `this`
|
|
BN.prototype.and = function and (num) {
|
|
if (this.length > num.length) return this.clone().iand(num);
|
|
return num.clone().iand(this);
|
|
};
|
|
|
|
BN.prototype.uand = function uand (num) {
|
|
if (this.length > num.length) return this.clone().iuand(num);
|
|
return num.clone().iuand(this);
|
|
};
|
|
|
|
// Xor `num` with `this` in-place
|
|
BN.prototype.iuxor = function iuxor (num) {
|
|
// a.length > b.length
|
|
var a;
|
|
var b;
|
|
if (this.length > num.length) {
|
|
a = this;
|
|
b = num;
|
|
} else {
|
|
a = num;
|
|
b = this;
|
|
}
|
|
|
|
for (var i = 0; i < b.length; i++) {
|
|
this.words[i] = a.words[i] ^ b.words[i];
|
|
}
|
|
|
|
if (this !== a) {
|
|
for (; i < a.length; i++) {
|
|
this.words[i] = a.words[i];
|
|
}
|
|
}
|
|
|
|
this.length = a.length;
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.ixor = function ixor (num) {
|
|
assert((this.negative | num.negative) === 0);
|
|
return this.iuxor(num);
|
|
};
|
|
|
|
// Xor `num` with `this`
|
|
BN.prototype.xor = function xor (num) {
|
|
if (this.length > num.length) return this.clone().ixor(num);
|
|
return num.clone().ixor(this);
|
|
};
|
|
|
|
BN.prototype.uxor = function uxor (num) {
|
|
if (this.length > num.length) return this.clone().iuxor(num);
|
|
return num.clone().iuxor(this);
|
|
};
|
|
|
|
// Not ``this`` with ``width`` bitwidth
|
|
BN.prototype.inotn = function inotn (width) {
|
|
assert(typeof width === 'number' && width >= 0);
|
|
|
|
var bytesNeeded = Math.ceil(width / 26) | 0;
|
|
var bitsLeft = width % 26;
|
|
|
|
// Extend the buffer with leading zeroes
|
|
this._expand(bytesNeeded);
|
|
|
|
if (bitsLeft > 0) {
|
|
bytesNeeded--;
|
|
}
|
|
|
|
// Handle complete words
|
|
for (var i = 0; i < bytesNeeded; i++) {
|
|
this.words[i] = ~this.words[i] & 0x3ffffff;
|
|
}
|
|
|
|
// Handle the residue
|
|
if (bitsLeft > 0) {
|
|
this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));
|
|
}
|
|
|
|
// And remove leading zeroes
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.notn = function notn (width) {
|
|
return this.clone().inotn(width);
|
|
};
|
|
|
|
// Set `bit` of `this`
|
|
BN.prototype.setn = function setn (bit, val) {
|
|
assert(typeof bit === 'number' && bit >= 0);
|
|
|
|
var off = (bit / 26) | 0;
|
|
var wbit = bit % 26;
|
|
|
|
this._expand(off + 1);
|
|
|
|
if (val) {
|
|
this.words[off] = this.words[off] | (1 << wbit);
|
|
} else {
|
|
this.words[off] = this.words[off] & ~(1 << wbit);
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
// Add `num` to `this` in-place
|
|
BN.prototype.iadd = function iadd (num) {
|
|
var r;
|
|
|
|
// negative + positive
|
|
if (this.negative !== 0 && num.negative === 0) {
|
|
this.negative = 0;
|
|
r = this.isub(num);
|
|
this.negative ^= 1;
|
|
return this._normSign();
|
|
|
|
// positive + negative
|
|
} else if (this.negative === 0 && num.negative !== 0) {
|
|
num.negative = 0;
|
|
r = this.isub(num);
|
|
num.negative = 1;
|
|
return r._normSign();
|
|
}
|
|
|
|
// a.length > b.length
|
|
var a, b;
|
|
if (this.length > num.length) {
|
|
a = this;
|
|
b = num;
|
|
} else {
|
|
a = num;
|
|
b = this;
|
|
}
|
|
|
|
var carry = 0;
|
|
for (var i = 0; i < b.length; i++) {
|
|
r = (a.words[i] | 0) + (b.words[i] | 0) + carry;
|
|
this.words[i] = r & 0x3ffffff;
|
|
carry = r >>> 26;
|
|
}
|
|
for (; carry !== 0 && i < a.length; i++) {
|
|
r = (a.words[i] | 0) + carry;
|
|
this.words[i] = r & 0x3ffffff;
|
|
carry = r >>> 26;
|
|
}
|
|
|
|
this.length = a.length;
|
|
if (carry !== 0) {
|
|
this.words[this.length] = carry;
|
|
this.length++;
|
|
// Copy the rest of the words
|
|
} else if (a !== this) {
|
|
for (; i < a.length; i++) {
|
|
this.words[i] = a.words[i];
|
|
}
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
// Add `num` to `this`
|
|
BN.prototype.add = function add (num) {
|
|
var res;
|
|
if (num.negative !== 0 && this.negative === 0) {
|
|
num.negative = 0;
|
|
res = this.sub(num);
|
|
num.negative ^= 1;
|
|
return res;
|
|
} else if (num.negative === 0 && this.negative !== 0) {
|
|
this.negative = 0;
|
|
res = num.sub(this);
|
|
this.negative = 1;
|
|
return res;
|
|
}
|
|
|
|
if (this.length > num.length) return this.clone().iadd(num);
|
|
|
|
return num.clone().iadd(this);
|
|
};
|
|
|
|
// Subtract `num` from `this` in-place
|
|
BN.prototype.isub = function isub (num) {
|
|
// this - (-num) = this + num
|
|
if (num.negative !== 0) {
|
|
num.negative = 0;
|
|
var r = this.iadd(num);
|
|
num.negative = 1;
|
|
return r._normSign();
|
|
|
|
// -this - num = -(this + num)
|
|
} else if (this.negative !== 0) {
|
|
this.negative = 0;
|
|
this.iadd(num);
|
|
this.negative = 1;
|
|
return this._normSign();
|
|
}
|
|
|
|
// At this point both numbers are positive
|
|
var cmp = this.cmp(num);
|
|
|
|
// Optimization - zeroify
|
|
if (cmp === 0) {
|
|
this.negative = 0;
|
|
this.length = 1;
|
|
this.words[0] = 0;
|
|
return this;
|
|
}
|
|
|
|
// a > b
|
|
var a, b;
|
|
if (cmp > 0) {
|
|
a = this;
|
|
b = num;
|
|
} else {
|
|
a = num;
|
|
b = this;
|
|
}
|
|
|
|
var carry = 0;
|
|
for (var i = 0; i < b.length; i++) {
|
|
r = (a.words[i] | 0) - (b.words[i] | 0) + carry;
|
|
carry = r >> 26;
|
|
this.words[i] = r & 0x3ffffff;
|
|
}
|
|
for (; carry !== 0 && i < a.length; i++) {
|
|
r = (a.words[i] | 0) + carry;
|
|
carry = r >> 26;
|
|
this.words[i] = r & 0x3ffffff;
|
|
}
|
|
|
|
// Copy rest of the words
|
|
if (carry === 0 && i < a.length && a !== this) {
|
|
for (; i < a.length; i++) {
|
|
this.words[i] = a.words[i];
|
|
}
|
|
}
|
|
|
|
this.length = Math.max(this.length, i);
|
|
|
|
if (a !== this) {
|
|
this.negative = 1;
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
// Subtract `num` from `this`
|
|
BN.prototype.sub = function sub (num) {
|
|
return this.clone().isub(num);
|
|
};
|
|
|
|
function smallMulTo (self, num, out) {
|
|
out.negative = num.negative ^ self.negative;
|
|
var len = (self.length + num.length) | 0;
|
|
out.length = len;
|
|
len = (len - 1) | 0;
|
|
|
|
// Peel one iteration (compiler can't do it, because of code complexity)
|
|
var a = self.words[0] | 0;
|
|
var b = num.words[0] | 0;
|
|
var r = a * b;
|
|
|
|
var lo = r & 0x3ffffff;
|
|
var carry = (r / 0x4000000) | 0;
|
|
out.words[0] = lo;
|
|
|
|
for (var k = 1; k < len; k++) {
|
|
// Sum all words with the same `i + j = k` and accumulate `ncarry`,
|
|
// note that ncarry could be >= 0x3ffffff
|
|
var ncarry = carry >>> 26;
|
|
var rword = carry & 0x3ffffff;
|
|
var maxJ = Math.min(k, num.length - 1);
|
|
for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
|
|
var i = (k - j) | 0;
|
|
a = self.words[i] | 0;
|
|
b = num.words[j] | 0;
|
|
r = a * b + rword;
|
|
ncarry += (r / 0x4000000) | 0;
|
|
rword = r & 0x3ffffff;
|
|
}
|
|
out.words[k] = rword | 0;
|
|
carry = ncarry | 0;
|
|
}
|
|
if (carry !== 0) {
|
|
out.words[k] = carry | 0;
|
|
} else {
|
|
out.length--;
|
|
}
|
|
|
|
return out.strip();
|
|
}
|
|
|
|
// TODO(indutny): it may be reasonable to omit it for users who don't need
|
|
// to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit
|
|
// multiplication (like elliptic secp256k1).
|
|
var comb10MulTo = function comb10MulTo (self, num, out) {
|
|
var a = self.words;
|
|
var b = num.words;
|
|
var o = out.words;
|
|
var c = 0;
|
|
var lo;
|
|
var mid;
|
|
var hi;
|
|
var a0 = a[0] | 0;
|
|
var al0 = a0 & 0x1fff;
|
|
var ah0 = a0 >>> 13;
|
|
var a1 = a[1] | 0;
|
|
var al1 = a1 & 0x1fff;
|
|
var ah1 = a1 >>> 13;
|
|
var a2 = a[2] | 0;
|
|
var al2 = a2 & 0x1fff;
|
|
var ah2 = a2 >>> 13;
|
|
var a3 = a[3] | 0;
|
|
var al3 = a3 & 0x1fff;
|
|
var ah3 = a3 >>> 13;
|
|
var a4 = a[4] | 0;
|
|
var al4 = a4 & 0x1fff;
|
|
var ah4 = a4 >>> 13;
|
|
var a5 = a[5] | 0;
|
|
var al5 = a5 & 0x1fff;
|
|
var ah5 = a5 >>> 13;
|
|
var a6 = a[6] | 0;
|
|
var al6 = a6 & 0x1fff;
|
|
var ah6 = a6 >>> 13;
|
|
var a7 = a[7] | 0;
|
|
var al7 = a7 & 0x1fff;
|
|
var ah7 = a7 >>> 13;
|
|
var a8 = a[8] | 0;
|
|
var al8 = a8 & 0x1fff;
|
|
var ah8 = a8 >>> 13;
|
|
var a9 = a[9] | 0;
|
|
var al9 = a9 & 0x1fff;
|
|
var ah9 = a9 >>> 13;
|
|
var b0 = b[0] | 0;
|
|
var bl0 = b0 & 0x1fff;
|
|
var bh0 = b0 >>> 13;
|
|
var b1 = b[1] | 0;
|
|
var bl1 = b1 & 0x1fff;
|
|
var bh1 = b1 >>> 13;
|
|
var b2 = b[2] | 0;
|
|
var bl2 = b2 & 0x1fff;
|
|
var bh2 = b2 >>> 13;
|
|
var b3 = b[3] | 0;
|
|
var bl3 = b3 & 0x1fff;
|
|
var bh3 = b3 >>> 13;
|
|
var b4 = b[4] | 0;
|
|
var bl4 = b4 & 0x1fff;
|
|
var bh4 = b4 >>> 13;
|
|
var b5 = b[5] | 0;
|
|
var bl5 = b5 & 0x1fff;
|
|
var bh5 = b5 >>> 13;
|
|
var b6 = b[6] | 0;
|
|
var bl6 = b6 & 0x1fff;
|
|
var bh6 = b6 >>> 13;
|
|
var b7 = b[7] | 0;
|
|
var bl7 = b7 & 0x1fff;
|
|
var bh7 = b7 >>> 13;
|
|
var b8 = b[8] | 0;
|
|
var bl8 = b8 & 0x1fff;
|
|
var bh8 = b8 >>> 13;
|
|
var b9 = b[9] | 0;
|
|
var bl9 = b9 & 0x1fff;
|
|
var bh9 = b9 >>> 13;
|
|
|
|
out.negative = self.negative ^ num.negative;
|
|
out.length = 19;
|
|
/* k = 0 */
|
|
lo = Math.imul(al0, bl0);
|
|
mid = Math.imul(al0, bh0);
|
|
mid = (mid + Math.imul(ah0, bl0)) | 0;
|
|
hi = Math.imul(ah0, bh0);
|
|
var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;
|
|
w0 &= 0x3ffffff;
|
|
/* k = 1 */
|
|
lo = Math.imul(al1, bl0);
|
|
mid = Math.imul(al1, bh0);
|
|
mid = (mid + Math.imul(ah1, bl0)) | 0;
|
|
hi = Math.imul(ah1, bh0);
|
|
lo = (lo + Math.imul(al0, bl1)) | 0;
|
|
mid = (mid + Math.imul(al0, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh1)) | 0;
|
|
var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;
|
|
w1 &= 0x3ffffff;
|
|
/* k = 2 */
|
|
lo = Math.imul(al2, bl0);
|
|
mid = Math.imul(al2, bh0);
|
|
mid = (mid + Math.imul(ah2, bl0)) | 0;
|
|
hi = Math.imul(ah2, bh0);
|
|
lo = (lo + Math.imul(al1, bl1)) | 0;
|
|
mid = (mid + Math.imul(al1, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh1)) | 0;
|
|
lo = (lo + Math.imul(al0, bl2)) | 0;
|
|
mid = (mid + Math.imul(al0, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh2)) | 0;
|
|
var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;
|
|
w2 &= 0x3ffffff;
|
|
/* k = 3 */
|
|
lo = Math.imul(al3, bl0);
|
|
mid = Math.imul(al3, bh0);
|
|
mid = (mid + Math.imul(ah3, bl0)) | 0;
|
|
hi = Math.imul(ah3, bh0);
|
|
lo = (lo + Math.imul(al2, bl1)) | 0;
|
|
mid = (mid + Math.imul(al2, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh1)) | 0;
|
|
lo = (lo + Math.imul(al1, bl2)) | 0;
|
|
mid = (mid + Math.imul(al1, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh2)) | 0;
|
|
lo = (lo + Math.imul(al0, bl3)) | 0;
|
|
mid = (mid + Math.imul(al0, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh3)) | 0;
|
|
var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;
|
|
w3 &= 0x3ffffff;
|
|
/* k = 4 */
|
|
lo = Math.imul(al4, bl0);
|
|
mid = Math.imul(al4, bh0);
|
|
mid = (mid + Math.imul(ah4, bl0)) | 0;
|
|
hi = Math.imul(ah4, bh0);
|
|
lo = (lo + Math.imul(al3, bl1)) | 0;
|
|
mid = (mid + Math.imul(al3, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh1)) | 0;
|
|
lo = (lo + Math.imul(al2, bl2)) | 0;
|
|
mid = (mid + Math.imul(al2, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh2)) | 0;
|
|
lo = (lo + Math.imul(al1, bl3)) | 0;
|
|
mid = (mid + Math.imul(al1, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh3)) | 0;
|
|
lo = (lo + Math.imul(al0, bl4)) | 0;
|
|
mid = (mid + Math.imul(al0, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh4)) | 0;
|
|
var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;
|
|
w4 &= 0x3ffffff;
|
|
/* k = 5 */
|
|
lo = Math.imul(al5, bl0);
|
|
mid = Math.imul(al5, bh0);
|
|
mid = (mid + Math.imul(ah5, bl0)) | 0;
|
|
hi = Math.imul(ah5, bh0);
|
|
lo = (lo + Math.imul(al4, bl1)) | 0;
|
|
mid = (mid + Math.imul(al4, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh1)) | 0;
|
|
lo = (lo + Math.imul(al3, bl2)) | 0;
|
|
mid = (mid + Math.imul(al3, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh2)) | 0;
|
|
lo = (lo + Math.imul(al2, bl3)) | 0;
|
|
mid = (mid + Math.imul(al2, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh3)) | 0;
|
|
lo = (lo + Math.imul(al1, bl4)) | 0;
|
|
mid = (mid + Math.imul(al1, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh4)) | 0;
|
|
lo = (lo + Math.imul(al0, bl5)) | 0;
|
|
mid = (mid + Math.imul(al0, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh5)) | 0;
|
|
var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;
|
|
w5 &= 0x3ffffff;
|
|
/* k = 6 */
|
|
lo = Math.imul(al6, bl0);
|
|
mid = Math.imul(al6, bh0);
|
|
mid = (mid + Math.imul(ah6, bl0)) | 0;
|
|
hi = Math.imul(ah6, bh0);
|
|
lo = (lo + Math.imul(al5, bl1)) | 0;
|
|
mid = (mid + Math.imul(al5, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh1)) | 0;
|
|
lo = (lo + Math.imul(al4, bl2)) | 0;
|
|
mid = (mid + Math.imul(al4, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh2)) | 0;
|
|
lo = (lo + Math.imul(al3, bl3)) | 0;
|
|
mid = (mid + Math.imul(al3, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh3)) | 0;
|
|
lo = (lo + Math.imul(al2, bl4)) | 0;
|
|
mid = (mid + Math.imul(al2, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh4)) | 0;
|
|
lo = (lo + Math.imul(al1, bl5)) | 0;
|
|
mid = (mid + Math.imul(al1, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh5)) | 0;
|
|
lo = (lo + Math.imul(al0, bl6)) | 0;
|
|
mid = (mid + Math.imul(al0, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh6)) | 0;
|
|
var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;
|
|
w6 &= 0x3ffffff;
|
|
/* k = 7 */
|
|
lo = Math.imul(al7, bl0);
|
|
mid = Math.imul(al7, bh0);
|
|
mid = (mid + Math.imul(ah7, bl0)) | 0;
|
|
hi = Math.imul(ah7, bh0);
|
|
lo = (lo + Math.imul(al6, bl1)) | 0;
|
|
mid = (mid + Math.imul(al6, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh1)) | 0;
|
|
lo = (lo + Math.imul(al5, bl2)) | 0;
|
|
mid = (mid + Math.imul(al5, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh2)) | 0;
|
|
lo = (lo + Math.imul(al4, bl3)) | 0;
|
|
mid = (mid + Math.imul(al4, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh3)) | 0;
|
|
lo = (lo + Math.imul(al3, bl4)) | 0;
|
|
mid = (mid + Math.imul(al3, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh4)) | 0;
|
|
lo = (lo + Math.imul(al2, bl5)) | 0;
|
|
mid = (mid + Math.imul(al2, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh5)) | 0;
|
|
lo = (lo + Math.imul(al1, bl6)) | 0;
|
|
mid = (mid + Math.imul(al1, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh6)) | 0;
|
|
lo = (lo + Math.imul(al0, bl7)) | 0;
|
|
mid = (mid + Math.imul(al0, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh7)) | 0;
|
|
var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;
|
|
w7 &= 0x3ffffff;
|
|
/* k = 8 */
|
|
lo = Math.imul(al8, bl0);
|
|
mid = Math.imul(al8, bh0);
|
|
mid = (mid + Math.imul(ah8, bl0)) | 0;
|
|
hi = Math.imul(ah8, bh0);
|
|
lo = (lo + Math.imul(al7, bl1)) | 0;
|
|
mid = (mid + Math.imul(al7, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh1)) | 0;
|
|
lo = (lo + Math.imul(al6, bl2)) | 0;
|
|
mid = (mid + Math.imul(al6, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh2)) | 0;
|
|
lo = (lo + Math.imul(al5, bl3)) | 0;
|
|
mid = (mid + Math.imul(al5, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh3)) | 0;
|
|
lo = (lo + Math.imul(al4, bl4)) | 0;
|
|
mid = (mid + Math.imul(al4, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh4)) | 0;
|
|
lo = (lo + Math.imul(al3, bl5)) | 0;
|
|
mid = (mid + Math.imul(al3, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh5)) | 0;
|
|
lo = (lo + Math.imul(al2, bl6)) | 0;
|
|
mid = (mid + Math.imul(al2, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh6)) | 0;
|
|
lo = (lo + Math.imul(al1, bl7)) | 0;
|
|
mid = (mid + Math.imul(al1, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh7)) | 0;
|
|
lo = (lo + Math.imul(al0, bl8)) | 0;
|
|
mid = (mid + Math.imul(al0, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh8)) | 0;
|
|
var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;
|
|
w8 &= 0x3ffffff;
|
|
/* k = 9 */
|
|
lo = Math.imul(al9, bl0);
|
|
mid = Math.imul(al9, bh0);
|
|
mid = (mid + Math.imul(ah9, bl0)) | 0;
|
|
hi = Math.imul(ah9, bh0);
|
|
lo = (lo + Math.imul(al8, bl1)) | 0;
|
|
mid = (mid + Math.imul(al8, bh1)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl1)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh1)) | 0;
|
|
lo = (lo + Math.imul(al7, bl2)) | 0;
|
|
mid = (mid + Math.imul(al7, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh2)) | 0;
|
|
lo = (lo + Math.imul(al6, bl3)) | 0;
|
|
mid = (mid + Math.imul(al6, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh3)) | 0;
|
|
lo = (lo + Math.imul(al5, bl4)) | 0;
|
|
mid = (mid + Math.imul(al5, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh4)) | 0;
|
|
lo = (lo + Math.imul(al4, bl5)) | 0;
|
|
mid = (mid + Math.imul(al4, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh5)) | 0;
|
|
lo = (lo + Math.imul(al3, bl6)) | 0;
|
|
mid = (mid + Math.imul(al3, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh6)) | 0;
|
|
lo = (lo + Math.imul(al2, bl7)) | 0;
|
|
mid = (mid + Math.imul(al2, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh7)) | 0;
|
|
lo = (lo + Math.imul(al1, bl8)) | 0;
|
|
mid = (mid + Math.imul(al1, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh8)) | 0;
|
|
lo = (lo + Math.imul(al0, bl9)) | 0;
|
|
mid = (mid + Math.imul(al0, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah0, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah0, bh9)) | 0;
|
|
var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;
|
|
w9 &= 0x3ffffff;
|
|
/* k = 10 */
|
|
lo = Math.imul(al9, bl1);
|
|
mid = Math.imul(al9, bh1);
|
|
mid = (mid + Math.imul(ah9, bl1)) | 0;
|
|
hi = Math.imul(ah9, bh1);
|
|
lo = (lo + Math.imul(al8, bl2)) | 0;
|
|
mid = (mid + Math.imul(al8, bh2)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl2)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh2)) | 0;
|
|
lo = (lo + Math.imul(al7, bl3)) | 0;
|
|
mid = (mid + Math.imul(al7, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh3)) | 0;
|
|
lo = (lo + Math.imul(al6, bl4)) | 0;
|
|
mid = (mid + Math.imul(al6, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh4)) | 0;
|
|
lo = (lo + Math.imul(al5, bl5)) | 0;
|
|
mid = (mid + Math.imul(al5, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh5)) | 0;
|
|
lo = (lo + Math.imul(al4, bl6)) | 0;
|
|
mid = (mid + Math.imul(al4, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh6)) | 0;
|
|
lo = (lo + Math.imul(al3, bl7)) | 0;
|
|
mid = (mid + Math.imul(al3, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh7)) | 0;
|
|
lo = (lo + Math.imul(al2, bl8)) | 0;
|
|
mid = (mid + Math.imul(al2, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh8)) | 0;
|
|
lo = (lo + Math.imul(al1, bl9)) | 0;
|
|
mid = (mid + Math.imul(al1, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah1, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah1, bh9)) | 0;
|
|
var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;
|
|
w10 &= 0x3ffffff;
|
|
/* k = 11 */
|
|
lo = Math.imul(al9, bl2);
|
|
mid = Math.imul(al9, bh2);
|
|
mid = (mid + Math.imul(ah9, bl2)) | 0;
|
|
hi = Math.imul(ah9, bh2);
|
|
lo = (lo + Math.imul(al8, bl3)) | 0;
|
|
mid = (mid + Math.imul(al8, bh3)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl3)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh3)) | 0;
|
|
lo = (lo + Math.imul(al7, bl4)) | 0;
|
|
mid = (mid + Math.imul(al7, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh4)) | 0;
|
|
lo = (lo + Math.imul(al6, bl5)) | 0;
|
|
mid = (mid + Math.imul(al6, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh5)) | 0;
|
|
lo = (lo + Math.imul(al5, bl6)) | 0;
|
|
mid = (mid + Math.imul(al5, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh6)) | 0;
|
|
lo = (lo + Math.imul(al4, bl7)) | 0;
|
|
mid = (mid + Math.imul(al4, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh7)) | 0;
|
|
lo = (lo + Math.imul(al3, bl8)) | 0;
|
|
mid = (mid + Math.imul(al3, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh8)) | 0;
|
|
lo = (lo + Math.imul(al2, bl9)) | 0;
|
|
mid = (mid + Math.imul(al2, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah2, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah2, bh9)) | 0;
|
|
var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;
|
|
w11 &= 0x3ffffff;
|
|
/* k = 12 */
|
|
lo = Math.imul(al9, bl3);
|
|
mid = Math.imul(al9, bh3);
|
|
mid = (mid + Math.imul(ah9, bl3)) | 0;
|
|
hi = Math.imul(ah9, bh3);
|
|
lo = (lo + Math.imul(al8, bl4)) | 0;
|
|
mid = (mid + Math.imul(al8, bh4)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl4)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh4)) | 0;
|
|
lo = (lo + Math.imul(al7, bl5)) | 0;
|
|
mid = (mid + Math.imul(al7, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh5)) | 0;
|
|
lo = (lo + Math.imul(al6, bl6)) | 0;
|
|
mid = (mid + Math.imul(al6, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh6)) | 0;
|
|
lo = (lo + Math.imul(al5, bl7)) | 0;
|
|
mid = (mid + Math.imul(al5, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh7)) | 0;
|
|
lo = (lo + Math.imul(al4, bl8)) | 0;
|
|
mid = (mid + Math.imul(al4, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh8)) | 0;
|
|
lo = (lo + Math.imul(al3, bl9)) | 0;
|
|
mid = (mid + Math.imul(al3, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah3, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah3, bh9)) | 0;
|
|
var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;
|
|
w12 &= 0x3ffffff;
|
|
/* k = 13 */
|
|
lo = Math.imul(al9, bl4);
|
|
mid = Math.imul(al9, bh4);
|
|
mid = (mid + Math.imul(ah9, bl4)) | 0;
|
|
hi = Math.imul(ah9, bh4);
|
|
lo = (lo + Math.imul(al8, bl5)) | 0;
|
|
mid = (mid + Math.imul(al8, bh5)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl5)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh5)) | 0;
|
|
lo = (lo + Math.imul(al7, bl6)) | 0;
|
|
mid = (mid + Math.imul(al7, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh6)) | 0;
|
|
lo = (lo + Math.imul(al6, bl7)) | 0;
|
|
mid = (mid + Math.imul(al6, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh7)) | 0;
|
|
lo = (lo + Math.imul(al5, bl8)) | 0;
|
|
mid = (mid + Math.imul(al5, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh8)) | 0;
|
|
lo = (lo + Math.imul(al4, bl9)) | 0;
|
|
mid = (mid + Math.imul(al4, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah4, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah4, bh9)) | 0;
|
|
var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;
|
|
w13 &= 0x3ffffff;
|
|
/* k = 14 */
|
|
lo = Math.imul(al9, bl5);
|
|
mid = Math.imul(al9, bh5);
|
|
mid = (mid + Math.imul(ah9, bl5)) | 0;
|
|
hi = Math.imul(ah9, bh5);
|
|
lo = (lo + Math.imul(al8, bl6)) | 0;
|
|
mid = (mid + Math.imul(al8, bh6)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl6)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh6)) | 0;
|
|
lo = (lo + Math.imul(al7, bl7)) | 0;
|
|
mid = (mid + Math.imul(al7, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh7)) | 0;
|
|
lo = (lo + Math.imul(al6, bl8)) | 0;
|
|
mid = (mid + Math.imul(al6, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh8)) | 0;
|
|
lo = (lo + Math.imul(al5, bl9)) | 0;
|
|
mid = (mid + Math.imul(al5, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah5, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah5, bh9)) | 0;
|
|
var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;
|
|
w14 &= 0x3ffffff;
|
|
/* k = 15 */
|
|
lo = Math.imul(al9, bl6);
|
|
mid = Math.imul(al9, bh6);
|
|
mid = (mid + Math.imul(ah9, bl6)) | 0;
|
|
hi = Math.imul(ah9, bh6);
|
|
lo = (lo + Math.imul(al8, bl7)) | 0;
|
|
mid = (mid + Math.imul(al8, bh7)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl7)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh7)) | 0;
|
|
lo = (lo + Math.imul(al7, bl8)) | 0;
|
|
mid = (mid + Math.imul(al7, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh8)) | 0;
|
|
lo = (lo + Math.imul(al6, bl9)) | 0;
|
|
mid = (mid + Math.imul(al6, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah6, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah6, bh9)) | 0;
|
|
var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;
|
|
w15 &= 0x3ffffff;
|
|
/* k = 16 */
|
|
lo = Math.imul(al9, bl7);
|
|
mid = Math.imul(al9, bh7);
|
|
mid = (mid + Math.imul(ah9, bl7)) | 0;
|
|
hi = Math.imul(ah9, bh7);
|
|
lo = (lo + Math.imul(al8, bl8)) | 0;
|
|
mid = (mid + Math.imul(al8, bh8)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl8)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh8)) | 0;
|
|
lo = (lo + Math.imul(al7, bl9)) | 0;
|
|
mid = (mid + Math.imul(al7, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah7, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah7, bh9)) | 0;
|
|
var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;
|
|
w16 &= 0x3ffffff;
|
|
/* k = 17 */
|
|
lo = Math.imul(al9, bl8);
|
|
mid = Math.imul(al9, bh8);
|
|
mid = (mid + Math.imul(ah9, bl8)) | 0;
|
|
hi = Math.imul(ah9, bh8);
|
|
lo = (lo + Math.imul(al8, bl9)) | 0;
|
|
mid = (mid + Math.imul(al8, bh9)) | 0;
|
|
mid = (mid + Math.imul(ah8, bl9)) | 0;
|
|
hi = (hi + Math.imul(ah8, bh9)) | 0;
|
|
var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;
|
|
w17 &= 0x3ffffff;
|
|
/* k = 18 */
|
|
lo = Math.imul(al9, bl9);
|
|
mid = Math.imul(al9, bh9);
|
|
mid = (mid + Math.imul(ah9, bl9)) | 0;
|
|
hi = Math.imul(ah9, bh9);
|
|
var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
|
|
c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;
|
|
w18 &= 0x3ffffff;
|
|
o[0] = w0;
|
|
o[1] = w1;
|
|
o[2] = w2;
|
|
o[3] = w3;
|
|
o[4] = w4;
|
|
o[5] = w5;
|
|
o[6] = w6;
|
|
o[7] = w7;
|
|
o[8] = w8;
|
|
o[9] = w9;
|
|
o[10] = w10;
|
|
o[11] = w11;
|
|
o[12] = w12;
|
|
o[13] = w13;
|
|
o[14] = w14;
|
|
o[15] = w15;
|
|
o[16] = w16;
|
|
o[17] = w17;
|
|
o[18] = w18;
|
|
if (c !== 0) {
|
|
o[19] = c;
|
|
out.length++;
|
|
}
|
|
return out;
|
|
};
|
|
|
|
// Polyfill comb
|
|
if (!Math.imul) {
|
|
comb10MulTo = smallMulTo;
|
|
}
|
|
|
|
function bigMulTo (self, num, out) {
|
|
out.negative = num.negative ^ self.negative;
|
|
out.length = self.length + num.length;
|
|
|
|
var carry = 0;
|
|
var hncarry = 0;
|
|
for (var k = 0; k < out.length - 1; k++) {
|
|
// Sum all words with the same `i + j = k` and accumulate `ncarry`,
|
|
// note that ncarry could be >= 0x3ffffff
|
|
var ncarry = hncarry;
|
|
hncarry = 0;
|
|
var rword = carry & 0x3ffffff;
|
|
var maxJ = Math.min(k, num.length - 1);
|
|
for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
|
|
var i = k - j;
|
|
var a = self.words[i] | 0;
|
|
var b = num.words[j] | 0;
|
|
var r = a * b;
|
|
|
|
var lo = r & 0x3ffffff;
|
|
ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
|
|
lo = (lo + rword) | 0;
|
|
rword = lo & 0x3ffffff;
|
|
ncarry = (ncarry + (lo >>> 26)) | 0;
|
|
|
|
hncarry += ncarry >>> 26;
|
|
ncarry &= 0x3ffffff;
|
|
}
|
|
out.words[k] = rword;
|
|
carry = ncarry;
|
|
ncarry = hncarry;
|
|
}
|
|
if (carry !== 0) {
|
|
out.words[k] = carry;
|
|
} else {
|
|
out.length--;
|
|
}
|
|
|
|
return out.strip();
|
|
}
|
|
|
|
function jumboMulTo (self, num, out) {
|
|
var fftm = new FFTM();
|
|
return fftm.mulp(self, num, out);
|
|
}
|
|
|
|
BN.prototype.mulTo = function mulTo (num, out) {
|
|
var res;
|
|
var len = this.length + num.length;
|
|
if (this.length === 10 && num.length === 10) {
|
|
res = comb10MulTo(this, num, out);
|
|
} else if (len < 63) {
|
|
res = smallMulTo(this, num, out);
|
|
} else if (len < 1024) {
|
|
res = bigMulTo(this, num, out);
|
|
} else {
|
|
res = jumboMulTo(this, num, out);
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
// Cooley-Tukey algorithm for FFT
|
|
// slightly revisited to rely on looping instead of recursion
|
|
|
|
function FFTM (x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
}
|
|
|
|
FFTM.prototype.makeRBT = function makeRBT (N) {
|
|
var t = new Array(N);
|
|
var l = BN.prototype._countBits(N) - 1;
|
|
for (var i = 0; i < N; i++) {
|
|
t[i] = this.revBin(i, l, N);
|
|
}
|
|
|
|
return t;
|
|
};
|
|
|
|
// Returns binary-reversed representation of `x`
|
|
FFTM.prototype.revBin = function revBin (x, l, N) {
|
|
if (x === 0 || x === N - 1) return x;
|
|
|
|
var rb = 0;
|
|
for (var i = 0; i < l; i++) {
|
|
rb |= (x & 1) << (l - i - 1);
|
|
x >>= 1;
|
|
}
|
|
|
|
return rb;
|
|
};
|
|
|
|
// Performs "tweedling" phase, therefore 'emulating'
|
|
// behaviour of the recursive algorithm
|
|
FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {
|
|
for (var i = 0; i < N; i++) {
|
|
rtws[i] = rws[rbt[i]];
|
|
itws[i] = iws[rbt[i]];
|
|
}
|
|
};
|
|
|
|
FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {
|
|
this.permute(rbt, rws, iws, rtws, itws, N);
|
|
|
|
for (var s = 1; s < N; s <<= 1) {
|
|
var l = s << 1;
|
|
|
|
var rtwdf = Math.cos(2 * Math.PI / l);
|
|
var itwdf = Math.sin(2 * Math.PI / l);
|
|
|
|
for (var p = 0; p < N; p += l) {
|
|
var rtwdf_ = rtwdf;
|
|
var itwdf_ = itwdf;
|
|
|
|
for (var j = 0; j < s; j++) {
|
|
var re = rtws[p + j];
|
|
var ie = itws[p + j];
|
|
|
|
var ro = rtws[p + j + s];
|
|
var io = itws[p + j + s];
|
|
|
|
var rx = rtwdf_ * ro - itwdf_ * io;
|
|
|
|
io = rtwdf_ * io + itwdf_ * ro;
|
|
ro = rx;
|
|
|
|
rtws[p + j] = re + ro;
|
|
itws[p + j] = ie + io;
|
|
|
|
rtws[p + j + s] = re - ro;
|
|
itws[p + j + s] = ie - io;
|
|
|
|
/* jshint maxdepth : false */
|
|
if (j !== l) {
|
|
rx = rtwdf * rtwdf_ - itwdf * itwdf_;
|
|
|
|
itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;
|
|
rtwdf_ = rx;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
FFTM.prototype.guessLen13b = function guessLen13b (n, m) {
|
|
var N = Math.max(m, n) | 1;
|
|
var odd = N & 1;
|
|
var i = 0;
|
|
for (N = N / 2 | 0; N; N = N >>> 1) {
|
|
i++;
|
|
}
|
|
|
|
return 1 << i + 1 + odd;
|
|
};
|
|
|
|
FFTM.prototype.conjugate = function conjugate (rws, iws, N) {
|
|
if (N <= 1) return;
|
|
|
|
for (var i = 0; i < N / 2; i++) {
|
|
var t = rws[i];
|
|
|
|
rws[i] = rws[N - i - 1];
|
|
rws[N - i - 1] = t;
|
|
|
|
t = iws[i];
|
|
|
|
iws[i] = -iws[N - i - 1];
|
|
iws[N - i - 1] = -t;
|
|
}
|
|
};
|
|
|
|
FFTM.prototype.normalize13b = function normalize13b (ws, N) {
|
|
var carry = 0;
|
|
for (var i = 0; i < N / 2; i++) {
|
|
var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +
|
|
Math.round(ws[2 * i] / N) +
|
|
carry;
|
|
|
|
ws[i] = w & 0x3ffffff;
|
|
|
|
if (w < 0x4000000) {
|
|
carry = 0;
|
|
} else {
|
|
carry = w / 0x4000000 | 0;
|
|
}
|
|
}
|
|
|
|
return ws;
|
|
};
|
|
|
|
FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {
|
|
var carry = 0;
|
|
for (var i = 0; i < len; i++) {
|
|
carry = carry + (ws[i] | 0);
|
|
|
|
rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;
|
|
rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;
|
|
}
|
|
|
|
// Pad with zeroes
|
|
for (i = 2 * len; i < N; ++i) {
|
|
rws[i] = 0;
|
|
}
|
|
|
|
assert(carry === 0);
|
|
assert((carry & ~0x1fff) === 0);
|
|
};
|
|
|
|
FFTM.prototype.stub = function stub (N) {
|
|
var ph = new Array(N);
|
|
for (var i = 0; i < N; i++) {
|
|
ph[i] = 0;
|
|
}
|
|
|
|
return ph;
|
|
};
|
|
|
|
FFTM.prototype.mulp = function mulp (x, y, out) {
|
|
var N = 2 * this.guessLen13b(x.length, y.length);
|
|
|
|
var rbt = this.makeRBT(N);
|
|
|
|
var _ = this.stub(N);
|
|
|
|
var rws = new Array(N);
|
|
var rwst = new Array(N);
|
|
var iwst = new Array(N);
|
|
|
|
var nrws = new Array(N);
|
|
var nrwst = new Array(N);
|
|
var niwst = new Array(N);
|
|
|
|
var rmws = out.words;
|
|
rmws.length = N;
|
|
|
|
this.convert13b(x.words, x.length, rws, N);
|
|
this.convert13b(y.words, y.length, nrws, N);
|
|
|
|
this.transform(rws, _, rwst, iwst, N, rbt);
|
|
this.transform(nrws, _, nrwst, niwst, N, rbt);
|
|
|
|
for (var i = 0; i < N; i++) {
|
|
var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];
|
|
iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];
|
|
rwst[i] = rx;
|
|
}
|
|
|
|
this.conjugate(rwst, iwst, N);
|
|
this.transform(rwst, iwst, rmws, _, N, rbt);
|
|
this.conjugate(rmws, _, N);
|
|
this.normalize13b(rmws, N);
|
|
|
|
out.negative = x.negative ^ y.negative;
|
|
out.length = x.length + y.length;
|
|
return out.strip();
|
|
};
|
|
|
|
// Multiply `this` by `num`
|
|
BN.prototype.mul = function mul (num) {
|
|
var out = new BN(null);
|
|
out.words = new Array(this.length + num.length);
|
|
return this.mulTo(num, out);
|
|
};
|
|
|
|
// Multiply employing FFT
|
|
BN.prototype.mulf = function mulf (num) {
|
|
var out = new BN(null);
|
|
out.words = new Array(this.length + num.length);
|
|
return jumboMulTo(this, num, out);
|
|
};
|
|
|
|
// In-place Multiplication
|
|
BN.prototype.imul = function imul (num) {
|
|
return this.clone().mulTo(num, this);
|
|
};
|
|
|
|
BN.prototype.imuln = function imuln (num) {
|
|
assert(typeof num === 'number');
|
|
assert(num < 0x4000000);
|
|
|
|
// Carry
|
|
var carry = 0;
|
|
for (var i = 0; i < this.length; i++) {
|
|
var w = (this.words[i] | 0) * num;
|
|
var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);
|
|
carry >>= 26;
|
|
carry += (w / 0x4000000) | 0;
|
|
// NOTE: lo is 27bit maximum
|
|
carry += lo >>> 26;
|
|
this.words[i] = lo & 0x3ffffff;
|
|
}
|
|
|
|
if (carry !== 0) {
|
|
this.words[i] = carry;
|
|
this.length++;
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
BN.prototype.muln = function muln (num) {
|
|
return this.clone().imuln(num);
|
|
};
|
|
|
|
// `this` * `this`
|
|
BN.prototype.sqr = function sqr () {
|
|
return this.mul(this);
|
|
};
|
|
|
|
// `this` * `this` in-place
|
|
BN.prototype.isqr = function isqr () {
|
|
return this.imul(this.clone());
|
|
};
|
|
|
|
// Math.pow(`this`, `num`)
|
|
BN.prototype.pow = function pow (num) {
|
|
var w = toBitArray(num);
|
|
if (w.length === 0) return new BN(1);
|
|
|
|
// Skip leading zeroes
|
|
var res = this;
|
|
for (var i = 0; i < w.length; i++, res = res.sqr()) {
|
|
if (w[i] !== 0) break;
|
|
}
|
|
|
|
if (++i < w.length) {
|
|
for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {
|
|
if (w[i] === 0) continue;
|
|
|
|
res = res.mul(q);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
// Shift-left in-place
|
|
BN.prototype.iushln = function iushln (bits) {
|
|
assert(typeof bits === 'number' && bits >= 0);
|
|
var r = bits % 26;
|
|
var s = (bits - r) / 26;
|
|
var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);
|
|
var i;
|
|
|
|
if (r !== 0) {
|
|
var carry = 0;
|
|
|
|
for (i = 0; i < this.length; i++) {
|
|
var newCarry = this.words[i] & carryMask;
|
|
var c = ((this.words[i] | 0) - newCarry) << r;
|
|
this.words[i] = c | carry;
|
|
carry = newCarry >>> (26 - r);
|
|
}
|
|
|
|
if (carry) {
|
|
this.words[i] = carry;
|
|
this.length++;
|
|
}
|
|
}
|
|
|
|
if (s !== 0) {
|
|
for (i = this.length - 1; i >= 0; i--) {
|
|
this.words[i + s] = this.words[i];
|
|
}
|
|
|
|
for (i = 0; i < s; i++) {
|
|
this.words[i] = 0;
|
|
}
|
|
|
|
this.length += s;
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.ishln = function ishln (bits) {
|
|
// TODO(indutny): implement me
|
|
assert(this.negative === 0);
|
|
return this.iushln(bits);
|
|
};
|
|
|
|
// Shift-right in-place
|
|
// NOTE: `hint` is a lowest bit before trailing zeroes
|
|
// NOTE: if `extended` is present - it will be filled with destroyed bits
|
|
BN.prototype.iushrn = function iushrn (bits, hint, extended) {
|
|
assert(typeof bits === 'number' && bits >= 0);
|
|
var h;
|
|
if (hint) {
|
|
h = (hint - (hint % 26)) / 26;
|
|
} else {
|
|
h = 0;
|
|
}
|
|
|
|
var r = bits % 26;
|
|
var s = Math.min((bits - r) / 26, this.length);
|
|
var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
|
|
var maskedWords = extended;
|
|
|
|
h -= s;
|
|
h = Math.max(0, h);
|
|
|
|
// Extended mode, copy masked part
|
|
if (maskedWords) {
|
|
for (var i = 0; i < s; i++) {
|
|
maskedWords.words[i] = this.words[i];
|
|
}
|
|
maskedWords.length = s;
|
|
}
|
|
|
|
if (s === 0) {
|
|
// No-op, we should not move anything at all
|
|
} else if (this.length > s) {
|
|
this.length -= s;
|
|
for (i = 0; i < this.length; i++) {
|
|
this.words[i] = this.words[i + s];
|
|
}
|
|
} else {
|
|
this.words[0] = 0;
|
|
this.length = 1;
|
|
}
|
|
|
|
var carry = 0;
|
|
for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {
|
|
var word = this.words[i] | 0;
|
|
this.words[i] = (carry << (26 - r)) | (word >>> r);
|
|
carry = word & mask;
|
|
}
|
|
|
|
// Push carried bits as a mask
|
|
if (maskedWords && carry !== 0) {
|
|
maskedWords.words[maskedWords.length++] = carry;
|
|
}
|
|
|
|
if (this.length === 0) {
|
|
this.words[0] = 0;
|
|
this.length = 1;
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.ishrn = function ishrn (bits, hint, extended) {
|
|
// TODO(indutny): implement me
|
|
assert(this.negative === 0);
|
|
return this.iushrn(bits, hint, extended);
|
|
};
|
|
|
|
// Shift-left
|
|
BN.prototype.shln = function shln (bits) {
|
|
return this.clone().ishln(bits);
|
|
};
|
|
|
|
BN.prototype.ushln = function ushln (bits) {
|
|
return this.clone().iushln(bits);
|
|
};
|
|
|
|
// Shift-right
|
|
BN.prototype.shrn = function shrn (bits) {
|
|
return this.clone().ishrn(bits);
|
|
};
|
|
|
|
BN.prototype.ushrn = function ushrn (bits) {
|
|
return this.clone().iushrn(bits);
|
|
};
|
|
|
|
// Test if n bit is set
|
|
BN.prototype.testn = function testn (bit) {
|
|
assert(typeof bit === 'number' && bit >= 0);
|
|
var r = bit % 26;
|
|
var s = (bit - r) / 26;
|
|
var q = 1 << r;
|
|
|
|
// Fast case: bit is much higher than all existing words
|
|
if (this.length <= s) return false;
|
|
|
|
// Check bit and return
|
|
var w = this.words[s];
|
|
|
|
return !!(w & q);
|
|
};
|
|
|
|
// Return only lowers bits of number (in-place)
|
|
BN.prototype.imaskn = function imaskn (bits) {
|
|
assert(typeof bits === 'number' && bits >= 0);
|
|
var r = bits % 26;
|
|
var s = (bits - r) / 26;
|
|
|
|
assert(this.negative === 0, 'imaskn works only with positive numbers');
|
|
|
|
if (this.length <= s) {
|
|
return this;
|
|
}
|
|
|
|
if (r !== 0) {
|
|
s++;
|
|
}
|
|
this.length = Math.min(s, this.length);
|
|
|
|
if (r !== 0) {
|
|
var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
|
|
this.words[this.length - 1] &= mask;
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
// Return only lowers bits of number
|
|
BN.prototype.maskn = function maskn (bits) {
|
|
return this.clone().imaskn(bits);
|
|
};
|
|
|
|
// Add plain number `num` to `this`
|
|
BN.prototype.iaddn = function iaddn (num) {
|
|
assert(typeof num === 'number');
|
|
assert(num < 0x4000000);
|
|
if (num < 0) return this.isubn(-num);
|
|
|
|
// Possible sign change
|
|
if (this.negative !== 0) {
|
|
if (this.length === 1 && (this.words[0] | 0) < num) {
|
|
this.words[0] = num - (this.words[0] | 0);
|
|
this.negative = 0;
|
|
return this;
|
|
}
|
|
|
|
this.negative = 0;
|
|
this.isubn(num);
|
|
this.negative = 1;
|
|
return this;
|
|
}
|
|
|
|
// Add without checks
|
|
return this._iaddn(num);
|
|
};
|
|
|
|
BN.prototype._iaddn = function _iaddn (num) {
|
|
this.words[0] += num;
|
|
|
|
// Carry
|
|
for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {
|
|
this.words[i] -= 0x4000000;
|
|
if (i === this.length - 1) {
|
|
this.words[i + 1] = 1;
|
|
} else {
|
|
this.words[i + 1]++;
|
|
}
|
|
}
|
|
this.length = Math.max(this.length, i + 1);
|
|
|
|
return this;
|
|
};
|
|
|
|
// Subtract plain number `num` from `this`
|
|
BN.prototype.isubn = function isubn (num) {
|
|
assert(typeof num === 'number');
|
|
assert(num < 0x4000000);
|
|
if (num < 0) return this.iaddn(-num);
|
|
|
|
if (this.negative !== 0) {
|
|
this.negative = 0;
|
|
this.iaddn(num);
|
|
this.negative = 1;
|
|
return this;
|
|
}
|
|
|
|
this.words[0] -= num;
|
|
|
|
if (this.length === 1 && this.words[0] < 0) {
|
|
this.words[0] = -this.words[0];
|
|
this.negative = 1;
|
|
} else {
|
|
// Carry
|
|
for (var i = 0; i < this.length && this.words[i] < 0; i++) {
|
|
this.words[i] += 0x4000000;
|
|
this.words[i + 1] -= 1;
|
|
}
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.addn = function addn (num) {
|
|
return this.clone().iaddn(num);
|
|
};
|
|
|
|
BN.prototype.subn = function subn (num) {
|
|
return this.clone().isubn(num);
|
|
};
|
|
|
|
BN.prototype.iabs = function iabs () {
|
|
this.negative = 0;
|
|
|
|
return this;
|
|
};
|
|
|
|
BN.prototype.abs = function abs () {
|
|
return this.clone().iabs();
|
|
};
|
|
|
|
BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {
|
|
var len = num.length + shift;
|
|
var i;
|
|
|
|
this._expand(len);
|
|
|
|
var w;
|
|
var carry = 0;
|
|
for (i = 0; i < num.length; i++) {
|
|
w = (this.words[i + shift] | 0) + carry;
|
|
var right = (num.words[i] | 0) * mul;
|
|
w -= right & 0x3ffffff;
|
|
carry = (w >> 26) - ((right / 0x4000000) | 0);
|
|
this.words[i + shift] = w & 0x3ffffff;
|
|
}
|
|
for (; i < this.length - shift; i++) {
|
|
w = (this.words[i + shift] | 0) + carry;
|
|
carry = w >> 26;
|
|
this.words[i + shift] = w & 0x3ffffff;
|
|
}
|
|
|
|
if (carry === 0) return this.strip();
|
|
|
|
// Subtraction overflow
|
|
assert(carry === -1);
|
|
carry = 0;
|
|
for (i = 0; i < this.length; i++) {
|
|
w = -(this.words[i] | 0) + carry;
|
|
carry = w >> 26;
|
|
this.words[i] = w & 0x3ffffff;
|
|
}
|
|
this.negative = 1;
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype._wordDiv = function _wordDiv (num, mode) {
|
|
var shift = this.length - num.length;
|
|
|
|
var a = this.clone();
|
|
var b = num;
|
|
|
|
// Normalize
|
|
var bhi = b.words[b.length - 1] | 0;
|
|
var bhiBits = this._countBits(bhi);
|
|
shift = 26 - bhiBits;
|
|
if (shift !== 0) {
|
|
b = b.ushln(shift);
|
|
a.iushln(shift);
|
|
bhi = b.words[b.length - 1] | 0;
|
|
}
|
|
|
|
// Initialize quotient
|
|
var m = a.length - b.length;
|
|
var q;
|
|
|
|
if (mode !== 'mod') {
|
|
q = new BN(null);
|
|
q.length = m + 1;
|
|
q.words = new Array(q.length);
|
|
for (var i = 0; i < q.length; i++) {
|
|
q.words[i] = 0;
|
|
}
|
|
}
|
|
|
|
var diff = a.clone()._ishlnsubmul(b, 1, m);
|
|
if (diff.negative === 0) {
|
|
a = diff;
|
|
if (q) {
|
|
q.words[m] = 1;
|
|
}
|
|
}
|
|
|
|
for (var j = m - 1; j >= 0; j--) {
|
|
var qj = (a.words[b.length + j] | 0) * 0x4000000 +
|
|
(a.words[b.length + j - 1] | 0);
|
|
|
|
// NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max
|
|
// (0x7ffffff)
|
|
qj = Math.min((qj / bhi) | 0, 0x3ffffff);
|
|
|
|
a._ishlnsubmul(b, qj, j);
|
|
while (a.negative !== 0) {
|
|
qj--;
|
|
a.negative = 0;
|
|
a._ishlnsubmul(b, 1, j);
|
|
if (!a.isZero()) {
|
|
a.negative ^= 1;
|
|
}
|
|
}
|
|
if (q) {
|
|
q.words[j] = qj;
|
|
}
|
|
}
|
|
if (q) {
|
|
q.strip();
|
|
}
|
|
a.strip();
|
|
|
|
// Denormalize
|
|
if (mode !== 'div' && shift !== 0) {
|
|
a.iushrn(shift);
|
|
}
|
|
|
|
return {
|
|
div: q || null,
|
|
mod: a
|
|
};
|
|
};
|
|
|
|
// NOTE: 1) `mode` can be set to `mod` to request mod only,
|
|
// to `div` to request div only, or be absent to
|
|
// request both div & mod
|
|
// 2) `positive` is true if unsigned mod is requested
|
|
BN.prototype.divmod = function divmod (num, mode, positive) {
|
|
assert(!num.isZero());
|
|
|
|
if (this.isZero()) {
|
|
return {
|
|
div: new BN(0),
|
|
mod: new BN(0)
|
|
};
|
|
}
|
|
|
|
var div, mod, res;
|
|
if (this.negative !== 0 && num.negative === 0) {
|
|
res = this.neg().divmod(num, mode);
|
|
|
|
if (mode !== 'mod') {
|
|
div = res.div.neg();
|
|
}
|
|
|
|
if (mode !== 'div') {
|
|
mod = res.mod.neg();
|
|
if (positive && mod.negative !== 0) {
|
|
mod.iadd(num);
|
|
}
|
|
}
|
|
|
|
return {
|
|
div: div,
|
|
mod: mod
|
|
};
|
|
}
|
|
|
|
if (this.negative === 0 && num.negative !== 0) {
|
|
res = this.divmod(num.neg(), mode);
|
|
|
|
if (mode !== 'mod') {
|
|
div = res.div.neg();
|
|
}
|
|
|
|
return {
|
|
div: div,
|
|
mod: res.mod
|
|
};
|
|
}
|
|
|
|
if ((this.negative & num.negative) !== 0) {
|
|
res = this.neg().divmod(num.neg(), mode);
|
|
|
|
if (mode !== 'div') {
|
|
mod = res.mod.neg();
|
|
if (positive && mod.negative !== 0) {
|
|
mod.isub(num);
|
|
}
|
|
}
|
|
|
|
return {
|
|
div: res.div,
|
|
mod: mod
|
|
};
|
|
}
|
|
|
|
// Both numbers are positive at this point
|
|
|
|
// Strip both numbers to approximate shift value
|
|
if (num.length > this.length || this.cmp(num) < 0) {
|
|
return {
|
|
div: new BN(0),
|
|
mod: this
|
|
};
|
|
}
|
|
|
|
// Very short reduction
|
|
if (num.length === 1) {
|
|
if (mode === 'div') {
|
|
return {
|
|
div: this.divn(num.words[0]),
|
|
mod: null
|
|
};
|
|
}
|
|
|
|
if (mode === 'mod') {
|
|
return {
|
|
div: null,
|
|
mod: new BN(this.modn(num.words[0]))
|
|
};
|
|
}
|
|
|
|
return {
|
|
div: this.divn(num.words[0]),
|
|
mod: new BN(this.modn(num.words[0]))
|
|
};
|
|
}
|
|
|
|
return this._wordDiv(num, mode);
|
|
};
|
|
|
|
// Find `this` / `num`
|
|
BN.prototype.div = function div (num) {
|
|
return this.divmod(num, 'div', false).div;
|
|
};
|
|
|
|
// Find `this` % `num`
|
|
BN.prototype.mod = function mod (num) {
|
|
return this.divmod(num, 'mod', false).mod;
|
|
};
|
|
|
|
BN.prototype.umod = function umod (num) {
|
|
return this.divmod(num, 'mod', true).mod;
|
|
};
|
|
|
|
// Find Round(`this` / `num`)
|
|
BN.prototype.divRound = function divRound (num) {
|
|
var dm = this.divmod(num);
|
|
|
|
// Fast case - exact division
|
|
if (dm.mod.isZero()) return dm.div;
|
|
|
|
var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;
|
|
|
|
var half = num.ushrn(1);
|
|
var r2 = num.andln(1);
|
|
var cmp = mod.cmp(half);
|
|
|
|
// Round down
|
|
if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;
|
|
|
|
// Round up
|
|
return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);
|
|
};
|
|
|
|
BN.prototype.modn = function modn (num) {
|
|
assert(num <= 0x3ffffff);
|
|
var p = (1 << 26) % num;
|
|
|
|
var acc = 0;
|
|
for (var i = this.length - 1; i >= 0; i--) {
|
|
acc = (p * acc + (this.words[i] | 0)) % num;
|
|
}
|
|
|
|
return acc;
|
|
};
|
|
|
|
// In-place division by number
|
|
BN.prototype.idivn = function idivn (num) {
|
|
assert(num <= 0x3ffffff);
|
|
|
|
var carry = 0;
|
|
for (var i = this.length - 1; i >= 0; i--) {
|
|
var w = (this.words[i] | 0) + carry * 0x4000000;
|
|
this.words[i] = (w / num) | 0;
|
|
carry = w % num;
|
|
}
|
|
|
|
return this.strip();
|
|
};
|
|
|
|
BN.prototype.divn = function divn (num) {
|
|
return this.clone().idivn(num);
|
|
};
|
|
|
|
BN.prototype.egcd = function egcd (p) {
|
|
assert(p.negative === 0);
|
|
assert(!p.isZero());
|
|
|
|
var x = this;
|
|
var y = p.clone();
|
|
|
|
if (x.negative !== 0) {
|
|
x = x.umod(p);
|
|
} else {
|
|
x = x.clone();
|
|
}
|
|
|
|
// A * x + B * y = x
|
|
var A = new BN(1);
|
|
var B = new BN(0);
|
|
|
|
// C * x + D * y = y
|
|
var C = new BN(0);
|
|
var D = new BN(1);
|
|
|
|
var g = 0;
|
|
|
|
while (x.isEven() && y.isEven()) {
|
|
x.iushrn(1);
|
|
y.iushrn(1);
|
|
++g;
|
|
}
|
|
|
|
var yp = y.clone();
|
|
var xp = x.clone();
|
|
|
|
while (!x.isZero()) {
|
|
for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
|
|
if (i > 0) {
|
|
x.iushrn(i);
|
|
while (i-- > 0) {
|
|
if (A.isOdd() || B.isOdd()) {
|
|
A.iadd(yp);
|
|
B.isub(xp);
|
|
}
|
|
|
|
A.iushrn(1);
|
|
B.iushrn(1);
|
|
}
|
|
}
|
|
|
|
for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
|
|
if (j > 0) {
|
|
y.iushrn(j);
|
|
while (j-- > 0) {
|
|
if (C.isOdd() || D.isOdd()) {
|
|
C.iadd(yp);
|
|
D.isub(xp);
|
|
}
|
|
|
|
C.iushrn(1);
|
|
D.iushrn(1);
|
|
}
|
|
}
|
|
|
|
if (x.cmp(y) >= 0) {
|
|
x.isub(y);
|
|
A.isub(C);
|
|
B.isub(D);
|
|
} else {
|
|
y.isub(x);
|
|
C.isub(A);
|
|
D.isub(B);
|
|
}
|
|
}
|
|
|
|
return {
|
|
a: C,
|
|
b: D,
|
|
gcd: y.iushln(g)
|
|
};
|
|
};
|
|
|
|
// This is reduced incarnation of the binary EEA
|
|
// above, designated to invert members of the
|
|
// _prime_ fields F(p) at a maximal speed
|
|
BN.prototype._invmp = function _invmp (p) {
|
|
assert(p.negative === 0);
|
|
assert(!p.isZero());
|
|
|
|
var a = this;
|
|
var b = p.clone();
|
|
|
|
if (a.negative !== 0) {
|
|
a = a.umod(p);
|
|
} else {
|
|
a = a.clone();
|
|
}
|
|
|
|
var x1 = new BN(1);
|
|
var x2 = new BN(0);
|
|
|
|
var delta = b.clone();
|
|
|
|
while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {
|
|
for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
|
|
if (i > 0) {
|
|
a.iushrn(i);
|
|
while (i-- > 0) {
|
|
if (x1.isOdd()) {
|
|
x1.iadd(delta);
|
|
}
|
|
|
|
x1.iushrn(1);
|
|
}
|
|
}
|
|
|
|
for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
|
|
if (j > 0) {
|
|
b.iushrn(j);
|
|
while (j-- > 0) {
|
|
if (x2.isOdd()) {
|
|
x2.iadd(delta);
|
|
}
|
|
|
|
x2.iushrn(1);
|
|
}
|
|
}
|
|
|
|
if (a.cmp(b) >= 0) {
|
|
a.isub(b);
|
|
x1.isub(x2);
|
|
} else {
|
|
b.isub(a);
|
|
x2.isub(x1);
|
|
}
|
|
}
|
|
|
|
var res;
|
|
if (a.cmpn(1) === 0) {
|
|
res = x1;
|
|
} else {
|
|
res = x2;
|
|
}
|
|
|
|
if (res.cmpn(0) < 0) {
|
|
res.iadd(p);
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
BN.prototype.gcd = function gcd (num) {
|
|
if (this.isZero()) return num.abs();
|
|
if (num.isZero()) return this.abs();
|
|
|
|
var a = this.clone();
|
|
var b = num.clone();
|
|
a.negative = 0;
|
|
b.negative = 0;
|
|
|
|
// Remove common factor of two
|
|
for (var shift = 0; a.isEven() && b.isEven(); shift++) {
|
|
a.iushrn(1);
|
|
b.iushrn(1);
|
|
}
|
|
|
|
do {
|
|
while (a.isEven()) {
|
|
a.iushrn(1);
|
|
}
|
|
while (b.isEven()) {
|
|
b.iushrn(1);
|
|
}
|
|
|
|
var r = a.cmp(b);
|
|
if (r < 0) {
|
|
// Swap `a` and `b` to make `a` always bigger than `b`
|
|
var t = a;
|
|
a = b;
|
|
b = t;
|
|
} else if (r === 0 || b.cmpn(1) === 0) {
|
|
break;
|
|
}
|
|
|
|
a.isub(b);
|
|
} while (true);
|
|
|
|
return b.iushln(shift);
|
|
};
|
|
|
|
// Invert number in the field F(num)
|
|
BN.prototype.invm = function invm (num) {
|
|
return this.egcd(num).a.umod(num);
|
|
};
|
|
|
|
BN.prototype.isEven = function isEven () {
|
|
return (this.words[0] & 1) === 0;
|
|
};
|
|
|
|
BN.prototype.isOdd = function isOdd () {
|
|
return (this.words[0] & 1) === 1;
|
|
};
|
|
|
|
// And first word and num
|
|
BN.prototype.andln = function andln (num) {
|
|
return this.words[0] & num;
|
|
};
|
|
|
|
// Increment at the bit position in-line
|
|
BN.prototype.bincn = function bincn (bit) {
|
|
assert(typeof bit === 'number');
|
|
var r = bit % 26;
|
|
var s = (bit - r) / 26;
|
|
var q = 1 << r;
|
|
|
|
// Fast case: bit is much higher than all existing words
|
|
if (this.length <= s) {
|
|
this._expand(s + 1);
|
|
this.words[s] |= q;
|
|
return this;
|
|
}
|
|
|
|
// Add bit and propagate, if needed
|
|
var carry = q;
|
|
for (var i = s; carry !== 0 && i < this.length; i++) {
|
|
var w = this.words[i] | 0;
|
|
w += carry;
|
|
carry = w >>> 26;
|
|
w &= 0x3ffffff;
|
|
this.words[i] = w;
|
|
}
|
|
if (carry !== 0) {
|
|
this.words[i] = carry;
|
|
this.length++;
|
|
}
|
|
return this;
|
|
};
|
|
|
|
BN.prototype.isZero = function isZero () {
|
|
return this.length === 1 && this.words[0] === 0;
|
|
};
|
|
|
|
BN.prototype.cmpn = function cmpn (num) {
|
|
var negative = num < 0;
|
|
|
|
if (this.negative !== 0 && !negative) return -1;
|
|
if (this.negative === 0 && negative) return 1;
|
|
|
|
this.strip();
|
|
|
|
var res;
|
|
if (this.length > 1) {
|
|
res = 1;
|
|
} else {
|
|
if (negative) {
|
|
num = -num;
|
|
}
|
|
|
|
assert(num <= 0x3ffffff, 'Number is too big');
|
|
|
|
var w = this.words[0] | 0;
|
|
res = w === num ? 0 : w < num ? -1 : 1;
|
|
}
|
|
if (this.negative !== 0) return -res | 0;
|
|
return res;
|
|
};
|
|
|
|
// Compare two numbers and return:
|
|
// 1 - if `this` > `num`
|
|
// 0 - if `this` == `num`
|
|
// -1 - if `this` < `num`
|
|
BN.prototype.cmp = function cmp (num) {
|
|
if (this.negative !== 0 && num.negative === 0) return -1;
|
|
if (this.negative === 0 && num.negative !== 0) return 1;
|
|
|
|
var res = this.ucmp(num);
|
|
if (this.negative !== 0) return -res | 0;
|
|
return res;
|
|
};
|
|
|
|
// Unsigned comparison
|
|
BN.prototype.ucmp = function ucmp (num) {
|
|
// At this point both numbers have the same sign
|
|
if (this.length > num.length) return 1;
|
|
if (this.length < num.length) return -1;
|
|
|
|
var res = 0;
|
|
for (var i = this.length - 1; i >= 0; i--) {
|
|
var a = this.words[i] | 0;
|
|
var b = num.words[i] | 0;
|
|
|
|
if (a === b) continue;
|
|
if (a < b) {
|
|
res = -1;
|
|
} else if (a > b) {
|
|
res = 1;
|
|
}
|
|
break;
|
|
}
|
|
return res;
|
|
};
|
|
|
|
BN.prototype.gtn = function gtn (num) {
|
|
return this.cmpn(num) === 1;
|
|
};
|
|
|
|
BN.prototype.gt = function gt (num) {
|
|
return this.cmp(num) === 1;
|
|
};
|
|
|
|
BN.prototype.gten = function gten (num) {
|
|
return this.cmpn(num) >= 0;
|
|
};
|
|
|
|
BN.prototype.gte = function gte (num) {
|
|
return this.cmp(num) >= 0;
|
|
};
|
|
|
|
BN.prototype.ltn = function ltn (num) {
|
|
return this.cmpn(num) === -1;
|
|
};
|
|
|
|
BN.prototype.lt = function lt (num) {
|
|
return this.cmp(num) === -1;
|
|
};
|
|
|
|
BN.prototype.lten = function lten (num) {
|
|
return this.cmpn(num) <= 0;
|
|
};
|
|
|
|
BN.prototype.lte = function lte (num) {
|
|
return this.cmp(num) <= 0;
|
|
};
|
|
|
|
BN.prototype.eqn = function eqn (num) {
|
|
return this.cmpn(num) === 0;
|
|
};
|
|
|
|
BN.prototype.eq = function eq (num) {
|
|
return this.cmp(num) === 0;
|
|
};
|
|
|
|
//
|
|
// A reduce context, could be using montgomery or something better, depending
|
|
// on the `m` itself.
|
|
//
|
|
BN.red = function red (num) {
|
|
return new Red(num);
|
|
};
|
|
|
|
BN.prototype.toRed = function toRed (ctx) {
|
|
assert(!this.red, 'Already a number in reduction context');
|
|
assert(this.negative === 0, 'red works only with positives');
|
|
return ctx.convertTo(this)._forceRed(ctx);
|
|
};
|
|
|
|
BN.prototype.fromRed = function fromRed () {
|
|
assert(this.red, 'fromRed works only with numbers in reduction context');
|
|
return this.red.convertFrom(this);
|
|
};
|
|
|
|
BN.prototype._forceRed = function _forceRed (ctx) {
|
|
this.red = ctx;
|
|
return this;
|
|
};
|
|
|
|
BN.prototype.forceRed = function forceRed (ctx) {
|
|
assert(!this.red, 'Already a number in reduction context');
|
|
return this._forceRed(ctx);
|
|
};
|
|
|
|
BN.prototype.redAdd = function redAdd (num) {
|
|
assert(this.red, 'redAdd works only with red numbers');
|
|
return this.red.add(this, num);
|
|
};
|
|
|
|
BN.prototype.redIAdd = function redIAdd (num) {
|
|
assert(this.red, 'redIAdd works only with red numbers');
|
|
return this.red.iadd(this, num);
|
|
};
|
|
|
|
BN.prototype.redSub = function redSub (num) {
|
|
assert(this.red, 'redSub works only with red numbers');
|
|
return this.red.sub(this, num);
|
|
};
|
|
|
|
BN.prototype.redISub = function redISub (num) {
|
|
assert(this.red, 'redISub works only with red numbers');
|
|
return this.red.isub(this, num);
|
|
};
|
|
|
|
BN.prototype.redShl = function redShl (num) {
|
|
assert(this.red, 'redShl works only with red numbers');
|
|
return this.red.shl(this, num);
|
|
};
|
|
|
|
BN.prototype.redMul = function redMul (num) {
|
|
assert(this.red, 'redMul works only with red numbers');
|
|
this.red._verify2(this, num);
|
|
return this.red.mul(this, num);
|
|
};
|
|
|
|
BN.prototype.redIMul = function redIMul (num) {
|
|
assert(this.red, 'redMul works only with red numbers');
|
|
this.red._verify2(this, num);
|
|
return this.red.imul(this, num);
|
|
};
|
|
|
|
BN.prototype.redSqr = function redSqr () {
|
|
assert(this.red, 'redSqr works only with red numbers');
|
|
this.red._verify1(this);
|
|
return this.red.sqr(this);
|
|
};
|
|
|
|
BN.prototype.redISqr = function redISqr () {
|
|
assert(this.red, 'redISqr works only with red numbers');
|
|
this.red._verify1(this);
|
|
return this.red.isqr(this);
|
|
};
|
|
|
|
// Square root over p
|
|
BN.prototype.redSqrt = function redSqrt () {
|
|
assert(this.red, 'redSqrt works only with red numbers');
|
|
this.red._verify1(this);
|
|
return this.red.sqrt(this);
|
|
};
|
|
|
|
BN.prototype.redInvm = function redInvm () {
|
|
assert(this.red, 'redInvm works only with red numbers');
|
|
this.red._verify1(this);
|
|
return this.red.invm(this);
|
|
};
|
|
|
|
// Return negative clone of `this` % `red modulo`
|
|
BN.prototype.redNeg = function redNeg () {
|
|
assert(this.red, 'redNeg works only with red numbers');
|
|
this.red._verify1(this);
|
|
return this.red.neg(this);
|
|
};
|
|
|
|
BN.prototype.redPow = function redPow (num) {
|
|
assert(this.red && !num.red, 'redPow(normalNum)');
|
|
this.red._verify1(this);
|
|
return this.red.pow(this, num);
|
|
};
|
|
|
|
// Prime numbers with efficient reduction
|
|
var primes = {
|
|
k256: null,
|
|
p224: null,
|
|
p192: null,
|
|
p25519: null
|
|
};
|
|
|
|
// Pseudo-Mersenne prime
|
|
function MPrime (name, p) {
|
|
// P = 2 ^ N - K
|
|
this.name = name;
|
|
this.p = new BN(p, 16);
|
|
this.n = this.p.bitLength();
|
|
this.k = new BN(1).iushln(this.n).isub(this.p);
|
|
|
|
this.tmp = this._tmp();
|
|
}
|
|
|
|
MPrime.prototype._tmp = function _tmp () {
|
|
var tmp = new BN(null);
|
|
tmp.words = new Array(Math.ceil(this.n / 13));
|
|
return tmp;
|
|
};
|
|
|
|
MPrime.prototype.ireduce = function ireduce (num) {
|
|
// Assumes that `num` is less than `P^2`
|
|
// num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)
|
|
var r = num;
|
|
var rlen;
|
|
|
|
do {
|
|
this.split(r, this.tmp);
|
|
r = this.imulK(r);
|
|
r = r.iadd(this.tmp);
|
|
rlen = r.bitLength();
|
|
} while (rlen > this.n);
|
|
|
|
var cmp = rlen < this.n ? -1 : r.ucmp(this.p);
|
|
if (cmp === 0) {
|
|
r.words[0] = 0;
|
|
r.length = 1;
|
|
} else if (cmp > 0) {
|
|
r.isub(this.p);
|
|
} else {
|
|
r.strip();
|
|
}
|
|
|
|
return r;
|
|
};
|
|
|
|
MPrime.prototype.split = function split (input, out) {
|
|
input.iushrn(this.n, 0, out);
|
|
};
|
|
|
|
MPrime.prototype.imulK = function imulK (num) {
|
|
return num.imul(this.k);
|
|
};
|
|
|
|
function K256 () {
|
|
MPrime.call(
|
|
this,
|
|
'k256',
|
|
'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');
|
|
}
|
|
inherits(K256, MPrime);
|
|
|
|
K256.prototype.split = function split (input, output) {
|
|
// 256 = 9 * 26 + 22
|
|
var mask = 0x3fffff;
|
|
|
|
var outLen = Math.min(input.length, 9);
|
|
for (var i = 0; i < outLen; i++) {
|
|
output.words[i] = input.words[i];
|
|
}
|
|
output.length = outLen;
|
|
|
|
if (input.length <= 9) {
|
|
input.words[0] = 0;
|
|
input.length = 1;
|
|
return;
|
|
}
|
|
|
|
// Shift by 9 limbs
|
|
var prev = input.words[9];
|
|
output.words[output.length++] = prev & mask;
|
|
|
|
for (i = 10; i < input.length; i++) {
|
|
var next = input.words[i] | 0;
|
|
input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);
|
|
prev = next;
|
|
}
|
|
prev >>>= 22;
|
|
input.words[i - 10] = prev;
|
|
if (prev === 0 && input.length > 10) {
|
|
input.length -= 10;
|
|
} else {
|
|
input.length -= 9;
|
|
}
|
|
};
|
|
|
|
K256.prototype.imulK = function imulK (num) {
|
|
// K = 0x1000003d1 = [ 0x40, 0x3d1 ]
|
|
num.words[num.length] = 0;
|
|
num.words[num.length + 1] = 0;
|
|
num.length += 2;
|
|
|
|
// bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390
|
|
var lo = 0;
|
|
for (var i = 0; i < num.length; i++) {
|
|
var w = num.words[i] | 0;
|
|
lo += w * 0x3d1;
|
|
num.words[i] = lo & 0x3ffffff;
|
|
lo = w * 0x40 + ((lo / 0x4000000) | 0);
|
|
}
|
|
|
|
// Fast length reduction
|
|
if (num.words[num.length - 1] === 0) {
|
|
num.length--;
|
|
if (num.words[num.length - 1] === 0) {
|
|
num.length--;
|
|
}
|
|
}
|
|
return num;
|
|
};
|
|
|
|
function P224 () {
|
|
MPrime.call(
|
|
this,
|
|
'p224',
|
|
'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');
|
|
}
|
|
inherits(P224, MPrime);
|
|
|
|
function P192 () {
|
|
MPrime.call(
|
|
this,
|
|
'p192',
|
|
'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');
|
|
}
|
|
inherits(P192, MPrime);
|
|
|
|
function P25519 () {
|
|
// 2 ^ 255 - 19
|
|
MPrime.call(
|
|
this,
|
|
'25519',
|
|
'7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');
|
|
}
|
|
inherits(P25519, MPrime);
|
|
|
|
P25519.prototype.imulK = function imulK (num) {
|
|
// K = 0x13
|
|
var carry = 0;
|
|
for (var i = 0; i < num.length; i++) {
|
|
var hi = (num.words[i] | 0) * 0x13 + carry;
|
|
var lo = hi & 0x3ffffff;
|
|
hi >>>= 26;
|
|
|
|
num.words[i] = lo;
|
|
carry = hi;
|
|
}
|
|
if (carry !== 0) {
|
|
num.words[num.length++] = carry;
|
|
}
|
|
return num;
|
|
};
|
|
|
|
// Exported mostly for testing purposes, use plain name instead
|
|
BN._prime = function prime (name) {
|
|
// Cached version of prime
|
|
if (primes[name]) return primes[name];
|
|
|
|
var prime;
|
|
if (name === 'k256') {
|
|
prime = new K256();
|
|
} else if (name === 'p224') {
|
|
prime = new P224();
|
|
} else if (name === 'p192') {
|
|
prime = new P192();
|
|
} else if (name === 'p25519') {
|
|
prime = new P25519();
|
|
} else {
|
|
throw new Error('Unknown prime ' + name);
|
|
}
|
|
primes[name] = prime;
|
|
|
|
return prime;
|
|
};
|
|
|
|
//
|
|
// Base reduction engine
|
|
//
|
|
function Red (m) {
|
|
if (typeof m === 'string') {
|
|
var prime = BN._prime(m);
|
|
this.m = prime.p;
|
|
this.prime = prime;
|
|
} else {
|
|
assert(m.gtn(1), 'modulus must be greater than 1');
|
|
this.m = m;
|
|
this.prime = null;
|
|
}
|
|
}
|
|
|
|
Red.prototype._verify1 = function _verify1 (a) {
|
|
assert(a.negative === 0, 'red works only with positives');
|
|
assert(a.red, 'red works only with red numbers');
|
|
};
|
|
|
|
Red.prototype._verify2 = function _verify2 (a, b) {
|
|
assert((a.negative | b.negative) === 0, 'red works only with positives');
|
|
assert(a.red && a.red === b.red,
|
|
'red works only with red numbers');
|
|
};
|
|
|
|
Red.prototype.imod = function imod (a) {
|
|
if (this.prime) return this.prime.ireduce(a)._forceRed(this);
|
|
return a.umod(this.m)._forceRed(this);
|
|
};
|
|
|
|
Red.prototype.neg = function neg (a) {
|
|
if (a.isZero()) {
|
|
return a.clone();
|
|
}
|
|
|
|
return this.m.sub(a)._forceRed(this);
|
|
};
|
|
|
|
Red.prototype.add = function add (a, b) {
|
|
this._verify2(a, b);
|
|
|
|
var res = a.add(b);
|
|
if (res.cmp(this.m) >= 0) {
|
|
res.isub(this.m);
|
|
}
|
|
return res._forceRed(this);
|
|
};
|
|
|
|
Red.prototype.iadd = function iadd (a, b) {
|
|
this._verify2(a, b);
|
|
|
|
var res = a.iadd(b);
|
|
if (res.cmp(this.m) >= 0) {
|
|
res.isub(this.m);
|
|
}
|
|
return res;
|
|
};
|
|
|
|
Red.prototype.sub = function sub (a, b) {
|
|
this._verify2(a, b);
|
|
|
|
var res = a.sub(b);
|
|
if (res.cmpn(0) < 0) {
|
|
res.iadd(this.m);
|
|
}
|
|
return res._forceRed(this);
|
|
};
|
|
|
|
Red.prototype.isub = function isub (a, b) {
|
|
this._verify2(a, b);
|
|
|
|
var res = a.isub(b);
|
|
if (res.cmpn(0) < 0) {
|
|
res.iadd(this.m);
|
|
}
|
|
return res;
|
|
};
|
|
|
|
Red.prototype.shl = function shl (a, num) {
|
|
this._verify1(a);
|
|
return this.imod(a.ushln(num));
|
|
};
|
|
|
|
Red.prototype.imul = function imul (a, b) {
|
|
this._verify2(a, b);
|
|
return this.imod(a.imul(b));
|
|
};
|
|
|
|
Red.prototype.mul = function mul (a, b) {
|
|
this._verify2(a, b);
|
|
return this.imod(a.mul(b));
|
|
};
|
|
|
|
Red.prototype.isqr = function isqr (a) {
|
|
return this.imul(a, a.clone());
|
|
};
|
|
|
|
Red.prototype.sqr = function sqr (a) {
|
|
return this.mul(a, a);
|
|
};
|
|
|
|
Red.prototype.sqrt = function sqrt (a) {
|
|
if (a.isZero()) return a.clone();
|
|
|
|
var mod3 = this.m.andln(3);
|
|
assert(mod3 % 2 === 1);
|
|
|
|
// Fast case
|
|
if (mod3 === 3) {
|
|
var pow = this.m.add(new BN(1)).iushrn(2);
|
|
return this.pow(a, pow);
|
|
}
|
|
|
|
// Tonelli-Shanks algorithm (Totally unoptimized and slow)
|
|
//
|
|
// Find Q and S, that Q * 2 ^ S = (P - 1)
|
|
var q = this.m.subn(1);
|
|
var s = 0;
|
|
while (!q.isZero() && q.andln(1) === 0) {
|
|
s++;
|
|
q.iushrn(1);
|
|
}
|
|
assert(!q.isZero());
|
|
|
|
var one = new BN(1).toRed(this);
|
|
var nOne = one.redNeg();
|
|
|
|
// Find quadratic non-residue
|
|
// NOTE: Max is such because of generalized Riemann hypothesis.
|
|
var lpow = this.m.subn(1).iushrn(1);
|
|
var z = this.m.bitLength();
|
|
z = new BN(2 * z * z).toRed(this);
|
|
|
|
while (this.pow(z, lpow).cmp(nOne) !== 0) {
|
|
z.redIAdd(nOne);
|
|
}
|
|
|
|
var c = this.pow(z, q);
|
|
var r = this.pow(a, q.addn(1).iushrn(1));
|
|
var t = this.pow(a, q);
|
|
var m = s;
|
|
while (t.cmp(one) !== 0) {
|
|
var tmp = t;
|
|
for (var i = 0; tmp.cmp(one) !== 0; i++) {
|
|
tmp = tmp.redSqr();
|
|
}
|
|
assert(i < m);
|
|
var b = this.pow(c, new BN(1).iushln(m - i - 1));
|
|
|
|
r = r.redMul(b);
|
|
c = b.redSqr();
|
|
t = t.redMul(c);
|
|
m = i;
|
|
}
|
|
|
|
return r;
|
|
};
|
|
|
|
Red.prototype.invm = function invm (a) {
|
|
var inv = a._invmp(this.m);
|
|
if (inv.negative !== 0) {
|
|
inv.negative = 0;
|
|
return this.imod(inv).redNeg();
|
|
} else {
|
|
return this.imod(inv);
|
|
}
|
|
};
|
|
|
|
Red.prototype.pow = function pow (a, num) {
|
|
if (num.isZero()) return new BN(1).toRed(this);
|
|
if (num.cmpn(1) === 0) return a.clone();
|
|
|
|
var windowSize = 4;
|
|
var wnd = new Array(1 << windowSize);
|
|
wnd[0] = new BN(1).toRed(this);
|
|
wnd[1] = a;
|
|
for (var i = 2; i < wnd.length; i++) {
|
|
wnd[i] = this.mul(wnd[i - 1], a);
|
|
}
|
|
|
|
var res = wnd[0];
|
|
var current = 0;
|
|
var currentLen = 0;
|
|
var start = num.bitLength() % 26;
|
|
if (start === 0) {
|
|
start = 26;
|
|
}
|
|
|
|
for (i = num.length - 1; i >= 0; i--) {
|
|
var word = num.words[i];
|
|
for (var j = start - 1; j >= 0; j--) {
|
|
var bit = (word >> j) & 1;
|
|
if (res !== wnd[0]) {
|
|
res = this.sqr(res);
|
|
}
|
|
|
|
if (bit === 0 && current === 0) {
|
|
currentLen = 0;
|
|
continue;
|
|
}
|
|
|
|
current <<= 1;
|
|
current |= bit;
|
|
currentLen++;
|
|
if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;
|
|
|
|
res = this.mul(res, wnd[current]);
|
|
currentLen = 0;
|
|
current = 0;
|
|
}
|
|
start = 26;
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
Red.prototype.convertTo = function convertTo (num) {
|
|
var r = num.umod(this.m);
|
|
|
|
return r === num ? r.clone() : r;
|
|
};
|
|
|
|
Red.prototype.convertFrom = function convertFrom (num) {
|
|
var res = num.clone();
|
|
res.red = null;
|
|
return res;
|
|
};
|
|
|
|
//
|
|
// Montgomery method engine
|
|
//
|
|
|
|
BN.mont = function mont (num) {
|
|
return new Mont(num);
|
|
};
|
|
|
|
function Mont (m) {
|
|
Red.call(this, m);
|
|
|
|
this.shift = this.m.bitLength();
|
|
if (this.shift % 26 !== 0) {
|
|
this.shift += 26 - (this.shift % 26);
|
|
}
|
|
|
|
this.r = new BN(1).iushln(this.shift);
|
|
this.r2 = this.imod(this.r.sqr());
|
|
this.rinv = this.r._invmp(this.m);
|
|
|
|
this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);
|
|
this.minv = this.minv.umod(this.r);
|
|
this.minv = this.r.sub(this.minv);
|
|
}
|
|
inherits(Mont, Red);
|
|
|
|
Mont.prototype.convertTo = function convertTo (num) {
|
|
return this.imod(num.ushln(this.shift));
|
|
};
|
|
|
|
Mont.prototype.convertFrom = function convertFrom (num) {
|
|
var r = this.imod(num.mul(this.rinv));
|
|
r.red = null;
|
|
return r;
|
|
};
|
|
|
|
Mont.prototype.imul = function imul (a, b) {
|
|
if (a.isZero() || b.isZero()) {
|
|
a.words[0] = 0;
|
|
a.length = 1;
|
|
return a;
|
|
}
|
|
|
|
var t = a.imul(b);
|
|
var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
|
|
var u = t.isub(c).iushrn(this.shift);
|
|
var res = u;
|
|
|
|
if (u.cmp(this.m) >= 0) {
|
|
res = u.isub(this.m);
|
|
} else if (u.cmpn(0) < 0) {
|
|
res = u.iadd(this.m);
|
|
}
|
|
|
|
return res._forceRed(this);
|
|
};
|
|
|
|
Mont.prototype.mul = function mul (a, b) {
|
|
if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);
|
|
|
|
var t = a.mul(b);
|
|
var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
|
|
var u = t.isub(c).iushrn(this.shift);
|
|
var res = u;
|
|
if (u.cmp(this.m) >= 0) {
|
|
res = u.isub(this.m);
|
|
} else if (u.cmpn(0) < 0) {
|
|
res = u.iadd(this.m);
|
|
}
|
|
|
|
return res._forceRed(this);
|
|
};
|
|
|
|
Mont.prototype.invm = function invm (a) {
|
|
// (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R
|
|
var res = this.imod(a._invmp(this.m).mul(this.r2));
|
|
return res._forceRed(this);
|
|
};
|
|
})(typeof module === 'undefined' || module, this);
|
|
|
|
},{"buffer":18}],17:[function(require,module,exports){
|
|
var r;
|
|
|
|
module.exports = function rand(len) {
|
|
if (!r)
|
|
r = new Rand(null);
|
|
|
|
return r.generate(len);
|
|
};
|
|
|
|
function Rand(rand) {
|
|
this.rand = rand;
|
|
}
|
|
module.exports.Rand = Rand;
|
|
|
|
Rand.prototype.generate = function generate(len) {
|
|
return this._rand(len);
|
|
};
|
|
|
|
// Emulate crypto API using randy
|
|
Rand.prototype._rand = function _rand(n) {
|
|
if (this.rand.getBytes)
|
|
return this.rand.getBytes(n);
|
|
|
|
var res = new Uint8Array(n);
|
|
for (var i = 0; i < res.length; i++)
|
|
res[i] = this.rand.getByte();
|
|
return res;
|
|
};
|
|
|
|
if (typeof self === 'object') {
|
|
if (self.crypto && self.crypto.getRandomValues) {
|
|
// Modern browsers
|
|
Rand.prototype._rand = function _rand(n) {
|
|
var arr = new Uint8Array(n);
|
|
self.crypto.getRandomValues(arr);
|
|
return arr;
|
|
};
|
|
} else if (self.msCrypto && self.msCrypto.getRandomValues) {
|
|
// IE
|
|
Rand.prototype._rand = function _rand(n) {
|
|
var arr = new Uint8Array(n);
|
|
self.msCrypto.getRandomValues(arr);
|
|
return arr;
|
|
};
|
|
|
|
// Safari's WebWorkers do not have `crypto`
|
|
} else if (typeof window === 'object') {
|
|
// Old junk
|
|
Rand.prototype._rand = function() {
|
|
throw new Error('Not implemented yet');
|
|
};
|
|
}
|
|
} else {
|
|
// Node.js or Web worker with no crypto support
|
|
try {
|
|
var crypto = require('crypto');
|
|
if (typeof crypto.randomBytes !== 'function')
|
|
throw new Error('Not supported');
|
|
|
|
Rand.prototype._rand = function _rand(n) {
|
|
return crypto.randomBytes(n);
|
|
};
|
|
} catch (e) {
|
|
}
|
|
}
|
|
|
|
},{"crypto":18}],18:[function(require,module,exports){
|
|
|
|
},{}],19:[function(require,module,exports){
|
|
// based on the aes implimentation in triple sec
|
|
// https://github.com/keybase/triplesec
|
|
// which is in turn based on the one from crypto-js
|
|
// https://code.google.com/p/crypto-js/
|
|
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
function asUInt32Array (buf) {
|
|
if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)
|
|
|
|
var len = (buf.length / 4) | 0
|
|
var out = new Array(len)
|
|
|
|
for (var i = 0; i < len; i++) {
|
|
out[i] = buf.readUInt32BE(i * 4)
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
function scrubVec (v) {
|
|
for (var i = 0; i < v.length; v++) {
|
|
v[i] = 0
|
|
}
|
|
}
|
|
|
|
function cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) {
|
|
var SUB_MIX0 = SUB_MIX[0]
|
|
var SUB_MIX1 = SUB_MIX[1]
|
|
var SUB_MIX2 = SUB_MIX[2]
|
|
var SUB_MIX3 = SUB_MIX[3]
|
|
|
|
var s0 = M[0] ^ keySchedule[0]
|
|
var s1 = M[1] ^ keySchedule[1]
|
|
var s2 = M[2] ^ keySchedule[2]
|
|
var s3 = M[3] ^ keySchedule[3]
|
|
var t0, t1, t2, t3
|
|
var ksRow = 4
|
|
|
|
for (var round = 1; round < nRounds; round++) {
|
|
t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++]
|
|
t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++]
|
|
t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++]
|
|
t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++]
|
|
s0 = t0
|
|
s1 = t1
|
|
s2 = t2
|
|
s3 = t3
|
|
}
|
|
|
|
t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++]
|
|
t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++]
|
|
t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++]
|
|
t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++]
|
|
t0 = t0 >>> 0
|
|
t1 = t1 >>> 0
|
|
t2 = t2 >>> 0
|
|
t3 = t3 >>> 0
|
|
|
|
return [t0, t1, t2, t3]
|
|
}
|
|
|
|
// AES constants
|
|
var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]
|
|
var G = (function () {
|
|
// Compute double table
|
|
var d = new Array(256)
|
|
for (var j = 0; j < 256; j++) {
|
|
if (j < 128) {
|
|
d[j] = j << 1
|
|
} else {
|
|
d[j] = (j << 1) ^ 0x11b
|
|
}
|
|
}
|
|
|
|
var SBOX = []
|
|
var INV_SBOX = []
|
|
var SUB_MIX = [[], [], [], []]
|
|
var INV_SUB_MIX = [[], [], [], []]
|
|
|
|
// Walk GF(2^8)
|
|
var x = 0
|
|
var xi = 0
|
|
for (var i = 0; i < 256; ++i) {
|
|
// Compute sbox
|
|
var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4)
|
|
sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63
|
|
SBOX[x] = sx
|
|
INV_SBOX[sx] = x
|
|
|
|
// Compute multiplication
|
|
var x2 = d[x]
|
|
var x4 = d[x2]
|
|
var x8 = d[x4]
|
|
|
|
// Compute sub bytes, mix columns tables
|
|
var t = (d[sx] * 0x101) ^ (sx * 0x1010100)
|
|
SUB_MIX[0][x] = (t << 24) | (t >>> 8)
|
|
SUB_MIX[1][x] = (t << 16) | (t >>> 16)
|
|
SUB_MIX[2][x] = (t << 8) | (t >>> 24)
|
|
SUB_MIX[3][x] = t
|
|
|
|
// Compute inv sub bytes, inv mix columns tables
|
|
t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100)
|
|
INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8)
|
|
INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16)
|
|
INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24)
|
|
INV_SUB_MIX[3][sx] = t
|
|
|
|
if (x === 0) {
|
|
x = xi = 1
|
|
} else {
|
|
x = x2 ^ d[d[d[x8 ^ x2]]]
|
|
xi ^= d[d[xi]]
|
|
}
|
|
}
|
|
|
|
return {
|
|
SBOX: SBOX,
|
|
INV_SBOX: INV_SBOX,
|
|
SUB_MIX: SUB_MIX,
|
|
INV_SUB_MIX: INV_SUB_MIX
|
|
}
|
|
})()
|
|
|
|
function AES (key) {
|
|
this._key = asUInt32Array(key)
|
|
this._reset()
|
|
}
|
|
|
|
AES.blockSize = 4 * 4
|
|
AES.keySize = 256 / 8
|
|
AES.prototype.blockSize = AES.blockSize
|
|
AES.prototype.keySize = AES.keySize
|
|
AES.prototype._reset = function () {
|
|
var keyWords = this._key
|
|
var keySize = keyWords.length
|
|
var nRounds = keySize + 6
|
|
var ksRows = (nRounds + 1) * 4
|
|
|
|
var keySchedule = []
|
|
for (var k = 0; k < keySize; k++) {
|
|
keySchedule[k] = keyWords[k]
|
|
}
|
|
|
|
for (k = keySize; k < ksRows; k++) {
|
|
var t = keySchedule[k - 1]
|
|
|
|
if (k % keySize === 0) {
|
|
t = (t << 8) | (t >>> 24)
|
|
t =
|
|
(G.SBOX[t >>> 24] << 24) |
|
|
(G.SBOX[(t >>> 16) & 0xff] << 16) |
|
|
(G.SBOX[(t >>> 8) & 0xff] << 8) |
|
|
(G.SBOX[t & 0xff])
|
|
|
|
t ^= RCON[(k / keySize) | 0] << 24
|
|
} else if (keySize > 6 && k % keySize === 4) {
|
|
t =
|
|
(G.SBOX[t >>> 24] << 24) |
|
|
(G.SBOX[(t >>> 16) & 0xff] << 16) |
|
|
(G.SBOX[(t >>> 8) & 0xff] << 8) |
|
|
(G.SBOX[t & 0xff])
|
|
}
|
|
|
|
keySchedule[k] = keySchedule[k - keySize] ^ t
|
|
}
|
|
|
|
var invKeySchedule = []
|
|
for (var ik = 0; ik < ksRows; ik++) {
|
|
var ksR = ksRows - ik
|
|
var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)]
|
|
|
|
if (ik < 4 || ksR <= 4) {
|
|
invKeySchedule[ik] = tt
|
|
} else {
|
|
invKeySchedule[ik] =
|
|
G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^
|
|
G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^
|
|
G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^
|
|
G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]]
|
|
}
|
|
}
|
|
|
|
this._nRounds = nRounds
|
|
this._keySchedule = keySchedule
|
|
this._invKeySchedule = invKeySchedule
|
|
}
|
|
|
|
AES.prototype.encryptBlockRaw = function (M) {
|
|
M = asUInt32Array(M)
|
|
return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds)
|
|
}
|
|
|
|
AES.prototype.encryptBlock = function (M) {
|
|
var out = this.encryptBlockRaw(M)
|
|
var buf = Buffer.allocUnsafe(16)
|
|
buf.writeUInt32BE(out[0], 0)
|
|
buf.writeUInt32BE(out[1], 4)
|
|
buf.writeUInt32BE(out[2], 8)
|
|
buf.writeUInt32BE(out[3], 12)
|
|
return buf
|
|
}
|
|
|
|
AES.prototype.decryptBlock = function (M) {
|
|
M = asUInt32Array(M)
|
|
|
|
// swap
|
|
var m1 = M[1]
|
|
M[1] = M[3]
|
|
M[3] = m1
|
|
|
|
var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds)
|
|
var buf = Buffer.allocUnsafe(16)
|
|
buf.writeUInt32BE(out[0], 0)
|
|
buf.writeUInt32BE(out[3], 4)
|
|
buf.writeUInt32BE(out[2], 8)
|
|
buf.writeUInt32BE(out[1], 12)
|
|
return buf
|
|
}
|
|
|
|
AES.prototype.scrub = function () {
|
|
scrubVec(this._keySchedule)
|
|
scrubVec(this._invKeySchedule)
|
|
scrubVec(this._key)
|
|
}
|
|
|
|
module.exports.AES = AES
|
|
|
|
},{"safe-buffer":144}],20:[function(require,module,exports){
|
|
var aes = require('./aes')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var Transform = require('cipher-base')
|
|
var inherits = require('inherits')
|
|
var GHASH = require('./ghash')
|
|
var xor = require('buffer-xor')
|
|
var incr32 = require('./incr32')
|
|
|
|
function xorTest (a, b) {
|
|
var out = 0
|
|
if (a.length !== b.length) out++
|
|
|
|
var len = Math.min(a.length, b.length)
|
|
for (var i = 0; i < len; ++i) {
|
|
out += (a[i] ^ b[i])
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
function calcIv (self, iv, ck) {
|
|
if (iv.length === 12) {
|
|
self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])])
|
|
return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])])
|
|
}
|
|
var ghash = new GHASH(ck)
|
|
var len = iv.length
|
|
var toPad = len % 16
|
|
ghash.update(iv)
|
|
if (toPad) {
|
|
toPad = 16 - toPad
|
|
ghash.update(Buffer.alloc(toPad, 0))
|
|
}
|
|
ghash.update(Buffer.alloc(8, 0))
|
|
var ivBits = len * 8
|
|
var tail = Buffer.alloc(8)
|
|
tail.writeUIntBE(ivBits, 0, 8)
|
|
ghash.update(tail)
|
|
self._finID = ghash.state
|
|
var out = Buffer.from(self._finID)
|
|
incr32(out)
|
|
return out
|
|
}
|
|
function StreamCipher (mode, key, iv, decrypt) {
|
|
Transform.call(this)
|
|
|
|
var h = Buffer.alloc(4, 0)
|
|
|
|
this._cipher = new aes.AES(key)
|
|
var ck = this._cipher.encryptBlock(h)
|
|
this._ghash = new GHASH(ck)
|
|
iv = calcIv(this, iv, ck)
|
|
|
|
this._prev = Buffer.from(iv)
|
|
this._cache = Buffer.allocUnsafe(0)
|
|
this._secCache = Buffer.allocUnsafe(0)
|
|
this._decrypt = decrypt
|
|
this._alen = 0
|
|
this._len = 0
|
|
this._mode = mode
|
|
|
|
this._authTag = null
|
|
this._called = false
|
|
}
|
|
|
|
inherits(StreamCipher, Transform)
|
|
|
|
StreamCipher.prototype._update = function (chunk) {
|
|
if (!this._called && this._alen) {
|
|
var rump = 16 - (this._alen % 16)
|
|
if (rump < 16) {
|
|
rump = Buffer.alloc(rump, 0)
|
|
this._ghash.update(rump)
|
|
}
|
|
}
|
|
|
|
this._called = true
|
|
var out = this._mode.encrypt(this, chunk)
|
|
if (this._decrypt) {
|
|
this._ghash.update(chunk)
|
|
} else {
|
|
this._ghash.update(out)
|
|
}
|
|
this._len += chunk.length
|
|
return out
|
|
}
|
|
|
|
StreamCipher.prototype._final = function () {
|
|
if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data')
|
|
|
|
var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID))
|
|
if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data')
|
|
|
|
this._authTag = tag
|
|
this._cipher.scrub()
|
|
}
|
|
|
|
StreamCipher.prototype.getAuthTag = function getAuthTag () {
|
|
if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state')
|
|
|
|
return this._authTag
|
|
}
|
|
|
|
StreamCipher.prototype.setAuthTag = function setAuthTag (tag) {
|
|
if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state')
|
|
|
|
this._authTag = tag
|
|
}
|
|
|
|
StreamCipher.prototype.setAAD = function setAAD (buf) {
|
|
if (this._called) throw new Error('Attempting to set AAD in unsupported state')
|
|
|
|
this._ghash.update(buf)
|
|
this._alen += buf.length
|
|
}
|
|
|
|
module.exports = StreamCipher
|
|
|
|
},{"./aes":19,"./ghash":24,"./incr32":25,"buffer-xor":47,"cipher-base":49,"inherits":100,"safe-buffer":144}],21:[function(require,module,exports){
|
|
var ciphers = require('./encrypter')
|
|
var deciphers = require('./decrypter')
|
|
var modes = require('./modes/list.json')
|
|
|
|
function getCiphers () {
|
|
return Object.keys(modes)
|
|
}
|
|
|
|
exports.createCipher = exports.Cipher = ciphers.createCipher
|
|
exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv
|
|
exports.createDecipher = exports.Decipher = deciphers.createDecipher
|
|
exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv
|
|
exports.listCiphers = exports.getCiphers = getCiphers
|
|
|
|
},{"./decrypter":22,"./encrypter":23,"./modes/list.json":33}],22:[function(require,module,exports){
|
|
var AuthCipher = require('./authCipher')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var MODES = require('./modes')
|
|
var StreamCipher = require('./streamCipher')
|
|
var Transform = require('cipher-base')
|
|
var aes = require('./aes')
|
|
var ebtk = require('evp_bytestokey')
|
|
var inherits = require('inherits')
|
|
|
|
function Decipher (mode, key, iv) {
|
|
Transform.call(this)
|
|
|
|
this._cache = new Splitter()
|
|
this._last = void 0
|
|
this._cipher = new aes.AES(key)
|
|
this._prev = Buffer.from(iv)
|
|
this._mode = mode
|
|
this._autopadding = true
|
|
}
|
|
|
|
inherits(Decipher, Transform)
|
|
|
|
Decipher.prototype._update = function (data) {
|
|
this._cache.add(data)
|
|
var chunk
|
|
var thing
|
|
var out = []
|
|
while ((chunk = this._cache.get(this._autopadding))) {
|
|
thing = this._mode.decrypt(this, chunk)
|
|
out.push(thing)
|
|
}
|
|
return Buffer.concat(out)
|
|
}
|
|
|
|
Decipher.prototype._final = function () {
|
|
var chunk = this._cache.flush()
|
|
if (this._autopadding) {
|
|
return unpad(this._mode.decrypt(this, chunk))
|
|
} else if (chunk) {
|
|
throw new Error('data not multiple of block length')
|
|
}
|
|
}
|
|
|
|
Decipher.prototype.setAutoPadding = function (setTo) {
|
|
this._autopadding = !!setTo
|
|
return this
|
|
}
|
|
|
|
function Splitter () {
|
|
this.cache = Buffer.allocUnsafe(0)
|
|
}
|
|
|
|
Splitter.prototype.add = function (data) {
|
|
this.cache = Buffer.concat([this.cache, data])
|
|
}
|
|
|
|
Splitter.prototype.get = function (autoPadding) {
|
|
var out
|
|
if (autoPadding) {
|
|
if (this.cache.length > 16) {
|
|
out = this.cache.slice(0, 16)
|
|
this.cache = this.cache.slice(16)
|
|
return out
|
|
}
|
|
} else {
|
|
if (this.cache.length >= 16) {
|
|
out = this.cache.slice(0, 16)
|
|
this.cache = this.cache.slice(16)
|
|
return out
|
|
}
|
|
}
|
|
|
|
return null
|
|
}
|
|
|
|
Splitter.prototype.flush = function () {
|
|
if (this.cache.length) return this.cache
|
|
}
|
|
|
|
function unpad (last) {
|
|
var padded = last[15]
|
|
if (padded < 1 || padded > 16) {
|
|
throw new Error('unable to decrypt data')
|
|
}
|
|
var i = -1
|
|
while (++i < padded) {
|
|
if (last[(i + (16 - padded))] !== padded) {
|
|
throw new Error('unable to decrypt data')
|
|
}
|
|
}
|
|
if (padded === 16) return
|
|
|
|
return last.slice(0, 16 - padded)
|
|
}
|
|
|
|
function createDecipheriv (suite, password, iv) {
|
|
var config = MODES[suite.toLowerCase()]
|
|
if (!config) throw new TypeError('invalid suite type')
|
|
|
|
if (typeof iv === 'string') iv = Buffer.from(iv)
|
|
if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)
|
|
|
|
if (typeof password === 'string') password = Buffer.from(password)
|
|
if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)
|
|
|
|
if (config.type === 'stream') {
|
|
return new StreamCipher(config.module, password, iv, true)
|
|
} else if (config.type === 'auth') {
|
|
return new AuthCipher(config.module, password, iv, true)
|
|
}
|
|
|
|
return new Decipher(config.module, password, iv)
|
|
}
|
|
|
|
function createDecipher (suite, password) {
|
|
var config = MODES[suite.toLowerCase()]
|
|
if (!config) throw new TypeError('invalid suite type')
|
|
|
|
var keys = ebtk(password, false, config.key, config.iv)
|
|
return createDecipheriv(suite, keys.key, keys.iv)
|
|
}
|
|
|
|
exports.createDecipher = createDecipher
|
|
exports.createDecipheriv = createDecipheriv
|
|
|
|
},{"./aes":19,"./authCipher":20,"./modes":32,"./streamCipher":35,"cipher-base":49,"evp_bytestokey":84,"inherits":100,"safe-buffer":144}],23:[function(require,module,exports){
|
|
var MODES = require('./modes')
|
|
var AuthCipher = require('./authCipher')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var StreamCipher = require('./streamCipher')
|
|
var Transform = require('cipher-base')
|
|
var aes = require('./aes')
|
|
var ebtk = require('evp_bytestokey')
|
|
var inherits = require('inherits')
|
|
|
|
function Cipher (mode, key, iv) {
|
|
Transform.call(this)
|
|
|
|
this._cache = new Splitter()
|
|
this._cipher = new aes.AES(key)
|
|
this._prev = Buffer.from(iv)
|
|
this._mode = mode
|
|
this._autopadding = true
|
|
}
|
|
|
|
inherits(Cipher, Transform)
|
|
|
|
Cipher.prototype._update = function (data) {
|
|
this._cache.add(data)
|
|
var chunk
|
|
var thing
|
|
var out = []
|
|
|
|
while ((chunk = this._cache.get())) {
|
|
thing = this._mode.encrypt(this, chunk)
|
|
out.push(thing)
|
|
}
|
|
|
|
return Buffer.concat(out)
|
|
}
|
|
|
|
var PADDING = Buffer.alloc(16, 0x10)
|
|
|
|
Cipher.prototype._final = function () {
|
|
var chunk = this._cache.flush()
|
|
if (this._autopadding) {
|
|
chunk = this._mode.encrypt(this, chunk)
|
|
this._cipher.scrub()
|
|
return chunk
|
|
}
|
|
|
|
if (!chunk.equals(PADDING)) {
|
|
this._cipher.scrub()
|
|
throw new Error('data not multiple of block length')
|
|
}
|
|
}
|
|
|
|
Cipher.prototype.setAutoPadding = function (setTo) {
|
|
this._autopadding = !!setTo
|
|
return this
|
|
}
|
|
|
|
function Splitter () {
|
|
this.cache = Buffer.allocUnsafe(0)
|
|
}
|
|
|
|
Splitter.prototype.add = function (data) {
|
|
this.cache = Buffer.concat([this.cache, data])
|
|
}
|
|
|
|
Splitter.prototype.get = function () {
|
|
if (this.cache.length > 15) {
|
|
var out = this.cache.slice(0, 16)
|
|
this.cache = this.cache.slice(16)
|
|
return out
|
|
}
|
|
return null
|
|
}
|
|
|
|
Splitter.prototype.flush = function () {
|
|
var len = 16 - this.cache.length
|
|
var padBuff = Buffer.allocUnsafe(len)
|
|
|
|
var i = -1
|
|
while (++i < len) {
|
|
padBuff.writeUInt8(len, i)
|
|
}
|
|
|
|
return Buffer.concat([this.cache, padBuff])
|
|
}
|
|
|
|
function createCipheriv (suite, password, iv) {
|
|
var config = MODES[suite.toLowerCase()]
|
|
if (!config) throw new TypeError('invalid suite type')
|
|
|
|
if (typeof password === 'string') password = Buffer.from(password)
|
|
if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)
|
|
|
|
if (typeof iv === 'string') iv = Buffer.from(iv)
|
|
if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)
|
|
|
|
if (config.type === 'stream') {
|
|
return new StreamCipher(config.module, password, iv)
|
|
} else if (config.type === 'auth') {
|
|
return new AuthCipher(config.module, password, iv)
|
|
}
|
|
|
|
return new Cipher(config.module, password, iv)
|
|
}
|
|
|
|
function createCipher (suite, password) {
|
|
var config = MODES[suite.toLowerCase()]
|
|
if (!config) throw new TypeError('invalid suite type')
|
|
|
|
var keys = ebtk(password, false, config.key, config.iv)
|
|
return createCipheriv(suite, keys.key, keys.iv)
|
|
}
|
|
|
|
exports.createCipheriv = createCipheriv
|
|
exports.createCipher = createCipher
|
|
|
|
},{"./aes":19,"./authCipher":20,"./modes":32,"./streamCipher":35,"cipher-base":49,"evp_bytestokey":84,"inherits":100,"safe-buffer":144}],24:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var ZEROES = Buffer.alloc(16, 0)
|
|
|
|
function toArray (buf) {
|
|
return [
|
|
buf.readUInt32BE(0),
|
|
buf.readUInt32BE(4),
|
|
buf.readUInt32BE(8),
|
|
buf.readUInt32BE(12)
|
|
]
|
|
}
|
|
|
|
function fromArray (out) {
|
|
var buf = Buffer.allocUnsafe(16)
|
|
buf.writeUInt32BE(out[0] >>> 0, 0)
|
|
buf.writeUInt32BE(out[1] >>> 0, 4)
|
|
buf.writeUInt32BE(out[2] >>> 0, 8)
|
|
buf.writeUInt32BE(out[3] >>> 0, 12)
|
|
return buf
|
|
}
|
|
|
|
function GHASH (key) {
|
|
this.h = key
|
|
this.state = Buffer.alloc(16, 0)
|
|
this.cache = Buffer.allocUnsafe(0)
|
|
}
|
|
|
|
// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html
|
|
// by Juho Vähä-Herttua
|
|
GHASH.prototype.ghash = function (block) {
|
|
var i = -1
|
|
while (++i < block.length) {
|
|
this.state[i] ^= block[i]
|
|
}
|
|
this._multiply()
|
|
}
|
|
|
|
GHASH.prototype._multiply = function () {
|
|
var Vi = toArray(this.h)
|
|
var Zi = [0, 0, 0, 0]
|
|
var j, xi, lsbVi
|
|
var i = -1
|
|
while (++i < 128) {
|
|
xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0
|
|
if (xi) {
|
|
// Z_i+1 = Z_i ^ V_i
|
|
Zi[0] ^= Vi[0]
|
|
Zi[1] ^= Vi[1]
|
|
Zi[2] ^= Vi[2]
|
|
Zi[3] ^= Vi[3]
|
|
}
|
|
|
|
// Store the value of LSB(V_i)
|
|
lsbVi = (Vi[3] & 1) !== 0
|
|
|
|
// V_i+1 = V_i >> 1
|
|
for (j = 3; j > 0; j--) {
|
|
Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31)
|
|
}
|
|
Vi[0] = Vi[0] >>> 1
|
|
|
|
// If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R
|
|
if (lsbVi) {
|
|
Vi[0] = Vi[0] ^ (0xe1 << 24)
|
|
}
|
|
}
|
|
this.state = fromArray(Zi)
|
|
}
|
|
|
|
GHASH.prototype.update = function (buf) {
|
|
this.cache = Buffer.concat([this.cache, buf])
|
|
var chunk
|
|
while (this.cache.length >= 16) {
|
|
chunk = this.cache.slice(0, 16)
|
|
this.cache = this.cache.slice(16)
|
|
this.ghash(chunk)
|
|
}
|
|
}
|
|
|
|
GHASH.prototype.final = function (abl, bl) {
|
|
if (this.cache.length) {
|
|
this.ghash(Buffer.concat([this.cache, ZEROES], 16))
|
|
}
|
|
|
|
this.ghash(fromArray([0, abl, 0, bl]))
|
|
return this.state
|
|
}
|
|
|
|
module.exports = GHASH
|
|
|
|
},{"safe-buffer":144}],25:[function(require,module,exports){
|
|
function incr32 (iv) {
|
|
var len = iv.length
|
|
var item
|
|
while (len--) {
|
|
item = iv.readUInt8(len)
|
|
if (item === 255) {
|
|
iv.writeUInt8(0, len)
|
|
} else {
|
|
item++
|
|
iv.writeUInt8(item, len)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
module.exports = incr32
|
|
|
|
},{}],26:[function(require,module,exports){
|
|
var xor = require('buffer-xor')
|
|
|
|
exports.encrypt = function (self, block) {
|
|
var data = xor(block, self._prev)
|
|
|
|
self._prev = self._cipher.encryptBlock(data)
|
|
return self._prev
|
|
}
|
|
|
|
exports.decrypt = function (self, block) {
|
|
var pad = self._prev
|
|
|
|
self._prev = block
|
|
var out = self._cipher.decryptBlock(block)
|
|
|
|
return xor(out, pad)
|
|
}
|
|
|
|
},{"buffer-xor":47}],27:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var xor = require('buffer-xor')
|
|
|
|
function encryptStart (self, data, decrypt) {
|
|
var len = data.length
|
|
var out = xor(data, self._cache)
|
|
self._cache = self._cache.slice(len)
|
|
self._prev = Buffer.concat([self._prev, decrypt ? data : out])
|
|
return out
|
|
}
|
|
|
|
exports.encrypt = function (self, data, decrypt) {
|
|
var out = Buffer.allocUnsafe(0)
|
|
var len
|
|
|
|
while (data.length) {
|
|
if (self._cache.length === 0) {
|
|
self._cache = self._cipher.encryptBlock(self._prev)
|
|
self._prev = Buffer.allocUnsafe(0)
|
|
}
|
|
|
|
if (self._cache.length <= data.length) {
|
|
len = self._cache.length
|
|
out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])
|
|
data = data.slice(len)
|
|
} else {
|
|
out = Buffer.concat([out, encryptStart(self, data, decrypt)])
|
|
break
|
|
}
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
},{"buffer-xor":47,"safe-buffer":144}],28:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
function encryptByte (self, byteParam, decrypt) {
|
|
var pad
|
|
var i = -1
|
|
var len = 8
|
|
var out = 0
|
|
var bit, value
|
|
while (++i < len) {
|
|
pad = self._cipher.encryptBlock(self._prev)
|
|
bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0
|
|
value = pad[0] ^ bit
|
|
out += ((value & 0x80) >> (i % 8))
|
|
self._prev = shiftIn(self._prev, decrypt ? bit : value)
|
|
}
|
|
return out
|
|
}
|
|
|
|
function shiftIn (buffer, value) {
|
|
var len = buffer.length
|
|
var i = -1
|
|
var out = Buffer.allocUnsafe(buffer.length)
|
|
buffer = Buffer.concat([buffer, Buffer.from([value])])
|
|
|
|
while (++i < len) {
|
|
out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
exports.encrypt = function (self, chunk, decrypt) {
|
|
var len = chunk.length
|
|
var out = Buffer.allocUnsafe(len)
|
|
var i = -1
|
|
|
|
while (++i < len) {
|
|
out[i] = encryptByte(self, chunk[i], decrypt)
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
},{"safe-buffer":144}],29:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
function encryptByte (self, byteParam, decrypt) {
|
|
var pad = self._cipher.encryptBlock(self._prev)
|
|
var out = pad[0] ^ byteParam
|
|
|
|
self._prev = Buffer.concat([
|
|
self._prev.slice(1),
|
|
Buffer.from([decrypt ? byteParam : out])
|
|
])
|
|
|
|
return out
|
|
}
|
|
|
|
exports.encrypt = function (self, chunk, decrypt) {
|
|
var len = chunk.length
|
|
var out = Buffer.allocUnsafe(len)
|
|
var i = -1
|
|
|
|
while (++i < len) {
|
|
out[i] = encryptByte(self, chunk[i], decrypt)
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
},{"safe-buffer":144}],30:[function(require,module,exports){
|
|
var xor = require('buffer-xor')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var incr32 = require('../incr32')
|
|
|
|
function getBlock (self) {
|
|
var out = self._cipher.encryptBlockRaw(self._prev)
|
|
incr32(self._prev)
|
|
return out
|
|
}
|
|
|
|
var blockSize = 16
|
|
exports.encrypt = function (self, chunk) {
|
|
var chunkNum = Math.ceil(chunk.length / blockSize)
|
|
var start = self._cache.length
|
|
self._cache = Buffer.concat([
|
|
self._cache,
|
|
Buffer.allocUnsafe(chunkNum * blockSize)
|
|
])
|
|
for (var i = 0; i < chunkNum; i++) {
|
|
var out = getBlock(self)
|
|
var offset = start + i * blockSize
|
|
self._cache.writeUInt32BE(out[0], offset + 0)
|
|
self._cache.writeUInt32BE(out[1], offset + 4)
|
|
self._cache.writeUInt32BE(out[2], offset + 8)
|
|
self._cache.writeUInt32BE(out[3], offset + 12)
|
|
}
|
|
var pad = self._cache.slice(0, chunk.length)
|
|
self._cache = self._cache.slice(chunk.length)
|
|
return xor(chunk, pad)
|
|
}
|
|
|
|
},{"../incr32":25,"buffer-xor":47,"safe-buffer":144}],31:[function(require,module,exports){
|
|
exports.encrypt = function (self, block) {
|
|
return self._cipher.encryptBlock(block)
|
|
}
|
|
|
|
exports.decrypt = function (self, block) {
|
|
return self._cipher.decryptBlock(block)
|
|
}
|
|
|
|
},{}],32:[function(require,module,exports){
|
|
var modeModules = {
|
|
ECB: require('./ecb'),
|
|
CBC: require('./cbc'),
|
|
CFB: require('./cfb'),
|
|
CFB8: require('./cfb8'),
|
|
CFB1: require('./cfb1'),
|
|
OFB: require('./ofb'),
|
|
CTR: require('./ctr'),
|
|
GCM: require('./ctr')
|
|
}
|
|
|
|
var modes = require('./list.json')
|
|
|
|
for (var key in modes) {
|
|
modes[key].module = modeModules[modes[key].mode]
|
|
}
|
|
|
|
module.exports = modes
|
|
|
|
},{"./cbc":26,"./cfb":27,"./cfb1":28,"./cfb8":29,"./ctr":30,"./ecb":31,"./list.json":33,"./ofb":34}],33:[function(require,module,exports){
|
|
module.exports={
|
|
"aes-128-ecb": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 0,
|
|
"mode": "ECB",
|
|
"type": "block"
|
|
},
|
|
"aes-192-ecb": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 0,
|
|
"mode": "ECB",
|
|
"type": "block"
|
|
},
|
|
"aes-256-ecb": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 0,
|
|
"mode": "ECB",
|
|
"type": "block"
|
|
},
|
|
"aes-128-cbc": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes-192-cbc": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes-256-cbc": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes128": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes192": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes256": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CBC",
|
|
"type": "block"
|
|
},
|
|
"aes-128-cfb": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-192-cfb": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-256-cfb": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-128-cfb8": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CFB8",
|
|
"type": "stream"
|
|
},
|
|
"aes-192-cfb8": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CFB8",
|
|
"type": "stream"
|
|
},
|
|
"aes-256-cfb8": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CFB8",
|
|
"type": "stream"
|
|
},
|
|
"aes-128-cfb1": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CFB1",
|
|
"type": "stream"
|
|
},
|
|
"aes-192-cfb1": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CFB1",
|
|
"type": "stream"
|
|
},
|
|
"aes-256-cfb1": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CFB1",
|
|
"type": "stream"
|
|
},
|
|
"aes-128-ofb": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "OFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-192-ofb": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "OFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-256-ofb": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "OFB",
|
|
"type": "stream"
|
|
},
|
|
"aes-128-ctr": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 16,
|
|
"mode": "CTR",
|
|
"type": "stream"
|
|
},
|
|
"aes-192-ctr": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 16,
|
|
"mode": "CTR",
|
|
"type": "stream"
|
|
},
|
|
"aes-256-ctr": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 16,
|
|
"mode": "CTR",
|
|
"type": "stream"
|
|
},
|
|
"aes-128-gcm": {
|
|
"cipher": "AES",
|
|
"key": 128,
|
|
"iv": 12,
|
|
"mode": "GCM",
|
|
"type": "auth"
|
|
},
|
|
"aes-192-gcm": {
|
|
"cipher": "AES",
|
|
"key": 192,
|
|
"iv": 12,
|
|
"mode": "GCM",
|
|
"type": "auth"
|
|
},
|
|
"aes-256-gcm": {
|
|
"cipher": "AES",
|
|
"key": 256,
|
|
"iv": 12,
|
|
"mode": "GCM",
|
|
"type": "auth"
|
|
}
|
|
}
|
|
|
|
},{}],34:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var xor = require('buffer-xor')
|
|
|
|
function getBlock (self) {
|
|
self._prev = self._cipher.encryptBlock(self._prev)
|
|
return self._prev
|
|
}
|
|
|
|
exports.encrypt = function (self, chunk) {
|
|
while (self._cache.length < chunk.length) {
|
|
self._cache = Buffer.concat([self._cache, getBlock(self)])
|
|
}
|
|
|
|
var pad = self._cache.slice(0, chunk.length)
|
|
self._cache = self._cache.slice(chunk.length)
|
|
return xor(chunk, pad)
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"buffer":48,"buffer-xor":47}],35:[function(require,module,exports){
|
|
var aes = require('./aes')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var Transform = require('cipher-base')
|
|
var inherits = require('inherits')
|
|
|
|
function StreamCipher (mode, key, iv, decrypt) {
|
|
Transform.call(this)
|
|
|
|
this._cipher = new aes.AES(key)
|
|
this._prev = Buffer.from(iv)
|
|
this._cache = Buffer.allocUnsafe(0)
|
|
this._secCache = Buffer.allocUnsafe(0)
|
|
this._decrypt = decrypt
|
|
this._mode = mode
|
|
}
|
|
|
|
inherits(StreamCipher, Transform)
|
|
|
|
StreamCipher.prototype._update = function (chunk) {
|
|
return this._mode.encrypt(this, chunk, this._decrypt)
|
|
}
|
|
|
|
StreamCipher.prototype._final = function () {
|
|
this._cipher.scrub()
|
|
}
|
|
|
|
module.exports = StreamCipher
|
|
|
|
},{"./aes":19,"cipher-base":49,"inherits":100,"safe-buffer":144}],36:[function(require,module,exports){
|
|
var DES = require('browserify-des')
|
|
var aes = require('browserify-aes/browser')
|
|
var aesModes = require('browserify-aes/modes')
|
|
var desModes = require('browserify-des/modes')
|
|
var ebtk = require('evp_bytestokey')
|
|
|
|
function createCipher (suite, password) {
|
|
suite = suite.toLowerCase()
|
|
|
|
var keyLen, ivLen
|
|
if (aesModes[suite]) {
|
|
keyLen = aesModes[suite].key
|
|
ivLen = aesModes[suite].iv
|
|
} else if (desModes[suite]) {
|
|
keyLen = desModes[suite].key * 8
|
|
ivLen = desModes[suite].iv
|
|
} else {
|
|
throw new TypeError('invalid suite type')
|
|
}
|
|
|
|
var keys = ebtk(password, false, keyLen, ivLen)
|
|
return createCipheriv(suite, keys.key, keys.iv)
|
|
}
|
|
|
|
function createDecipher (suite, password) {
|
|
suite = suite.toLowerCase()
|
|
|
|
var keyLen, ivLen
|
|
if (aesModes[suite]) {
|
|
keyLen = aesModes[suite].key
|
|
ivLen = aesModes[suite].iv
|
|
} else if (desModes[suite]) {
|
|
keyLen = desModes[suite].key * 8
|
|
ivLen = desModes[suite].iv
|
|
} else {
|
|
throw new TypeError('invalid suite type')
|
|
}
|
|
|
|
var keys = ebtk(password, false, keyLen, ivLen)
|
|
return createDecipheriv(suite, keys.key, keys.iv)
|
|
}
|
|
|
|
function createCipheriv (suite, key, iv) {
|
|
suite = suite.toLowerCase()
|
|
if (aesModes[suite]) return aes.createCipheriv(suite, key, iv)
|
|
if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite })
|
|
|
|
throw new TypeError('invalid suite type')
|
|
}
|
|
|
|
function createDecipheriv (suite, key, iv) {
|
|
suite = suite.toLowerCase()
|
|
if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv)
|
|
if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true })
|
|
|
|
throw new TypeError('invalid suite type')
|
|
}
|
|
|
|
function getCiphers () {
|
|
return Object.keys(desModes).concat(aes.getCiphers())
|
|
}
|
|
|
|
exports.createCipher = exports.Cipher = createCipher
|
|
exports.createCipheriv = exports.Cipheriv = createCipheriv
|
|
exports.createDecipher = exports.Decipher = createDecipher
|
|
exports.createDecipheriv = exports.Decipheriv = createDecipheriv
|
|
exports.listCiphers = exports.getCiphers = getCiphers
|
|
|
|
},{"browserify-aes/browser":21,"browserify-aes/modes":32,"browserify-des":37,"browserify-des/modes":38,"evp_bytestokey":84}],37:[function(require,module,exports){
|
|
var CipherBase = require('cipher-base')
|
|
var des = require('des.js')
|
|
var inherits = require('inherits')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var modes = {
|
|
'des-ede3-cbc': des.CBC.instantiate(des.EDE),
|
|
'des-ede3': des.EDE,
|
|
'des-ede-cbc': des.CBC.instantiate(des.EDE),
|
|
'des-ede': des.EDE,
|
|
'des-cbc': des.CBC.instantiate(des.DES),
|
|
'des-ecb': des.DES
|
|
}
|
|
modes.des = modes['des-cbc']
|
|
modes.des3 = modes['des-ede3-cbc']
|
|
module.exports = DES
|
|
inherits(DES, CipherBase)
|
|
function DES (opts) {
|
|
CipherBase.call(this)
|
|
var modeName = opts.mode.toLowerCase()
|
|
var mode = modes[modeName]
|
|
var type
|
|
if (opts.decrypt) {
|
|
type = 'decrypt'
|
|
} else {
|
|
type = 'encrypt'
|
|
}
|
|
var key = opts.key
|
|
if (!Buffer.isBuffer(key)) {
|
|
key = Buffer.from(key)
|
|
}
|
|
if (modeName === 'des-ede' || modeName === 'des-ede-cbc') {
|
|
key = Buffer.concat([key, key.slice(0, 8)])
|
|
}
|
|
var iv = opts.iv
|
|
if (!Buffer.isBuffer(iv)) {
|
|
iv = Buffer.from(iv)
|
|
}
|
|
this._des = mode.create({
|
|
key: key,
|
|
iv: iv,
|
|
type: type
|
|
})
|
|
}
|
|
DES.prototype._update = function (data) {
|
|
return Buffer.from(this._des.update(data))
|
|
}
|
|
DES.prototype._final = function () {
|
|
return Buffer.from(this._des.final())
|
|
}
|
|
|
|
},{"cipher-base":49,"des.js":57,"inherits":100,"safe-buffer":144}],38:[function(require,module,exports){
|
|
exports['des-ecb'] = {
|
|
key: 8,
|
|
iv: 0
|
|
}
|
|
exports['des-cbc'] = exports.des = {
|
|
key: 8,
|
|
iv: 8
|
|
}
|
|
exports['des-ede3-cbc'] = exports.des3 = {
|
|
key: 24,
|
|
iv: 8
|
|
}
|
|
exports['des-ede3'] = {
|
|
key: 24,
|
|
iv: 0
|
|
}
|
|
exports['des-ede-cbc'] = {
|
|
key: 16,
|
|
iv: 8
|
|
}
|
|
exports['des-ede'] = {
|
|
key: 16,
|
|
iv: 0
|
|
}
|
|
|
|
},{}],39:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var bn = require('bn.js');
|
|
var randomBytes = require('randombytes');
|
|
module.exports = crt;
|
|
function blind(priv) {
|
|
var r = getr(priv);
|
|
var blinder = r.toRed(bn.mont(priv.modulus))
|
|
.redPow(new bn(priv.publicExponent)).fromRed();
|
|
return {
|
|
blinder: blinder,
|
|
unblinder:r.invm(priv.modulus)
|
|
};
|
|
}
|
|
function crt(msg, priv) {
|
|
var blinds = blind(priv);
|
|
var len = priv.modulus.byteLength();
|
|
var mod = bn.mont(priv.modulus);
|
|
var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus);
|
|
var c1 = blinded.toRed(bn.mont(priv.prime1));
|
|
var c2 = blinded.toRed(bn.mont(priv.prime2));
|
|
var qinv = priv.coefficient;
|
|
var p = priv.prime1;
|
|
var q = priv.prime2;
|
|
var m1 = c1.redPow(priv.exponent1);
|
|
var m2 = c2.redPow(priv.exponent2);
|
|
m1 = m1.fromRed();
|
|
m2 = m2.fromRed();
|
|
var h = m1.isub(m2).imul(qinv).umod(p);
|
|
h.imul(q);
|
|
m2.iadd(h);
|
|
return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len));
|
|
}
|
|
crt.getr = getr;
|
|
function getr(priv) {
|
|
var len = priv.modulus.byteLength();
|
|
var r = new bn(randomBytes(len));
|
|
while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) {
|
|
r = new bn(randomBytes(len));
|
|
}
|
|
return r;
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"bn.js":16,"buffer":48,"randombytes":125}],40:[function(require,module,exports){
|
|
module.exports = require('./browser/algorithms.json')
|
|
|
|
},{"./browser/algorithms.json":41}],41:[function(require,module,exports){
|
|
module.exports={
|
|
"sha224WithRSAEncryption": {
|
|
"sign": "rsa",
|
|
"hash": "sha224",
|
|
"id": "302d300d06096086480165030402040500041c"
|
|
},
|
|
"RSA-SHA224": {
|
|
"sign": "ecdsa/rsa",
|
|
"hash": "sha224",
|
|
"id": "302d300d06096086480165030402040500041c"
|
|
},
|
|
"sha256WithRSAEncryption": {
|
|
"sign": "rsa",
|
|
"hash": "sha256",
|
|
"id": "3031300d060960864801650304020105000420"
|
|
},
|
|
"RSA-SHA256": {
|
|
"sign": "ecdsa/rsa",
|
|
"hash": "sha256",
|
|
"id": "3031300d060960864801650304020105000420"
|
|
},
|
|
"sha384WithRSAEncryption": {
|
|
"sign": "rsa",
|
|
"hash": "sha384",
|
|
"id": "3041300d060960864801650304020205000430"
|
|
},
|
|
"RSA-SHA384": {
|
|
"sign": "ecdsa/rsa",
|
|
"hash": "sha384",
|
|
"id": "3041300d060960864801650304020205000430"
|
|
},
|
|
"sha512WithRSAEncryption": {
|
|
"sign": "rsa",
|
|
"hash": "sha512",
|
|
"id": "3051300d060960864801650304020305000440"
|
|
},
|
|
"RSA-SHA512": {
|
|
"sign": "ecdsa/rsa",
|
|
"hash": "sha512",
|
|
"id": "3051300d060960864801650304020305000440"
|
|
},
|
|
"RSA-SHA1": {
|
|
"sign": "rsa",
|
|
"hash": "sha1",
|
|
"id": "3021300906052b0e03021a05000414"
|
|
},
|
|
"ecdsa-with-SHA1": {
|
|
"sign": "ecdsa",
|
|
"hash": "sha1",
|
|
"id": ""
|
|
},
|
|
"sha256": {
|
|
"sign": "ecdsa",
|
|
"hash": "sha256",
|
|
"id": ""
|
|
},
|
|
"sha224": {
|
|
"sign": "ecdsa",
|
|
"hash": "sha224",
|
|
"id": ""
|
|
},
|
|
"sha384": {
|
|
"sign": "ecdsa",
|
|
"hash": "sha384",
|
|
"id": ""
|
|
},
|
|
"sha512": {
|
|
"sign": "ecdsa",
|
|
"hash": "sha512",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA": {
|
|
"sign": "dsa",
|
|
"hash": "sha1",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA1": {
|
|
"sign": "dsa",
|
|
"hash": "sha1",
|
|
"id": ""
|
|
},
|
|
"DSA": {
|
|
"sign": "dsa",
|
|
"hash": "sha1",
|
|
"id": ""
|
|
},
|
|
"DSA-WITH-SHA224": {
|
|
"sign": "dsa",
|
|
"hash": "sha224",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA224": {
|
|
"sign": "dsa",
|
|
"hash": "sha224",
|
|
"id": ""
|
|
},
|
|
"DSA-WITH-SHA256": {
|
|
"sign": "dsa",
|
|
"hash": "sha256",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA256": {
|
|
"sign": "dsa",
|
|
"hash": "sha256",
|
|
"id": ""
|
|
},
|
|
"DSA-WITH-SHA384": {
|
|
"sign": "dsa",
|
|
"hash": "sha384",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA384": {
|
|
"sign": "dsa",
|
|
"hash": "sha384",
|
|
"id": ""
|
|
},
|
|
"DSA-WITH-SHA512": {
|
|
"sign": "dsa",
|
|
"hash": "sha512",
|
|
"id": ""
|
|
},
|
|
"DSA-SHA512": {
|
|
"sign": "dsa",
|
|
"hash": "sha512",
|
|
"id": ""
|
|
},
|
|
"DSA-RIPEMD160": {
|
|
"sign": "dsa",
|
|
"hash": "rmd160",
|
|
"id": ""
|
|
},
|
|
"ripemd160WithRSA": {
|
|
"sign": "rsa",
|
|
"hash": "rmd160",
|
|
"id": "3021300906052b2403020105000414"
|
|
},
|
|
"RSA-RIPEMD160": {
|
|
"sign": "rsa",
|
|
"hash": "rmd160",
|
|
"id": "3021300906052b2403020105000414"
|
|
},
|
|
"md5WithRSAEncryption": {
|
|
"sign": "rsa",
|
|
"hash": "md5",
|
|
"id": "3020300c06082a864886f70d020505000410"
|
|
},
|
|
"RSA-MD5": {
|
|
"sign": "rsa",
|
|
"hash": "md5",
|
|
"id": "3020300c06082a864886f70d020505000410"
|
|
}
|
|
}
|
|
|
|
},{}],42:[function(require,module,exports){
|
|
module.exports={
|
|
"1.3.132.0.10": "secp256k1",
|
|
"1.3.132.0.33": "p224",
|
|
"1.2.840.10045.3.1.1": "p192",
|
|
"1.2.840.10045.3.1.7": "p256",
|
|
"1.3.132.0.34": "p384",
|
|
"1.3.132.0.35": "p521"
|
|
}
|
|
|
|
},{}],43:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var createHash = require('create-hash')
|
|
var stream = require('stream')
|
|
var inherits = require('inherits')
|
|
var sign = require('./sign')
|
|
var verify = require('./verify')
|
|
|
|
var algorithms = require('./algorithms.json')
|
|
Object.keys(algorithms).forEach(function (key) {
|
|
algorithms[key].id = new Buffer(algorithms[key].id, 'hex')
|
|
algorithms[key.toLowerCase()] = algorithms[key]
|
|
})
|
|
|
|
function Sign (algorithm) {
|
|
stream.Writable.call(this)
|
|
|
|
var data = algorithms[algorithm]
|
|
if (!data) throw new Error('Unknown message digest')
|
|
|
|
this._hashType = data.hash
|
|
this._hash = createHash(data.hash)
|
|
this._tag = data.id
|
|
this._signType = data.sign
|
|
}
|
|
inherits(Sign, stream.Writable)
|
|
|
|
Sign.prototype._write = function _write (data, _, done) {
|
|
this._hash.update(data)
|
|
done()
|
|
}
|
|
|
|
Sign.prototype.update = function update (data, enc) {
|
|
if (typeof data === 'string') data = new Buffer(data, enc)
|
|
|
|
this._hash.update(data)
|
|
return this
|
|
}
|
|
|
|
Sign.prototype.sign = function signMethod (key, enc) {
|
|
this.end()
|
|
var hash = this._hash.digest()
|
|
var sig = sign(hash, key, this._hashType, this._signType, this._tag)
|
|
|
|
return enc ? sig.toString(enc) : sig
|
|
}
|
|
|
|
function Verify (algorithm) {
|
|
stream.Writable.call(this)
|
|
|
|
var data = algorithms[algorithm]
|
|
if (!data) throw new Error('Unknown message digest')
|
|
|
|
this._hash = createHash(data.hash)
|
|
this._tag = data.id
|
|
this._signType = data.sign
|
|
}
|
|
inherits(Verify, stream.Writable)
|
|
|
|
Verify.prototype._write = function _write (data, _, done) {
|
|
this._hash.update(data)
|
|
done()
|
|
}
|
|
|
|
Verify.prototype.update = function update (data, enc) {
|
|
if (typeof data === 'string') data = new Buffer(data, enc)
|
|
|
|
this._hash.update(data)
|
|
return this
|
|
}
|
|
|
|
Verify.prototype.verify = function verifyMethod (key, sig, enc) {
|
|
if (typeof sig === 'string') sig = new Buffer(sig, enc)
|
|
|
|
this.end()
|
|
var hash = this._hash.digest()
|
|
return verify(sig, hash, key, this._signType, this._tag)
|
|
}
|
|
|
|
function createSign (algorithm) {
|
|
return new Sign(algorithm)
|
|
}
|
|
|
|
function createVerify (algorithm) {
|
|
return new Verify(algorithm)
|
|
}
|
|
|
|
module.exports = {
|
|
Sign: createSign,
|
|
Verify: createVerify,
|
|
createSign: createSign,
|
|
createVerify: createVerify
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"./algorithms.json":41,"./sign":44,"./verify":45,"buffer":48,"create-hash":52,"inherits":100,"stream":154}],44:[function(require,module,exports){
|
|
(function (Buffer){
|
|
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
|
|
var createHmac = require('create-hmac')
|
|
var crt = require('browserify-rsa')
|
|
var EC = require('elliptic').ec
|
|
var BN = require('bn.js')
|
|
var parseKeys = require('parse-asn1')
|
|
var curves = require('./curves.json')
|
|
|
|
function sign (hash, key, hashType, signType, tag) {
|
|
var priv = parseKeys(key)
|
|
if (priv.curve) {
|
|
// rsa keys can be interpreted as ecdsa ones in openssl
|
|
if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type')
|
|
return ecSign(hash, priv)
|
|
} else if (priv.type === 'dsa') {
|
|
if (signType !== 'dsa') throw new Error('wrong private key type')
|
|
return dsaSign(hash, priv, hashType)
|
|
} else {
|
|
if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type')
|
|
}
|
|
hash = Buffer.concat([tag, hash])
|
|
var len = priv.modulus.byteLength()
|
|
var pad = [ 0, 1 ]
|
|
while (hash.length + pad.length + 1 < len) pad.push(0xff)
|
|
pad.push(0x00)
|
|
var i = -1
|
|
while (++i < hash.length) pad.push(hash[i])
|
|
|
|
var out = crt(pad, priv)
|
|
return out
|
|
}
|
|
|
|
function ecSign (hash, priv) {
|
|
var curveId = curves[priv.curve.join('.')]
|
|
if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.'))
|
|
|
|
var curve = new EC(curveId)
|
|
var key = curve.keyFromPrivate(priv.privateKey)
|
|
var out = key.sign(hash)
|
|
|
|
return new Buffer(out.toDER())
|
|
}
|
|
|
|
function dsaSign (hash, priv, algo) {
|
|
var x = priv.params.priv_key
|
|
var p = priv.params.p
|
|
var q = priv.params.q
|
|
var g = priv.params.g
|
|
var r = new BN(0)
|
|
var k
|
|
var H = bits2int(hash, q).mod(q)
|
|
var s = false
|
|
var kv = getKey(x, q, hash, algo)
|
|
while (s === false) {
|
|
k = makeKey(q, kv, algo)
|
|
r = makeR(g, k, p, q)
|
|
s = k.invm(q).imul(H.add(x.mul(r))).mod(q)
|
|
if (s.cmpn(0) === 0) {
|
|
s = false
|
|
r = new BN(0)
|
|
}
|
|
}
|
|
return toDER(r, s)
|
|
}
|
|
|
|
function toDER (r, s) {
|
|
r = r.toArray()
|
|
s = s.toArray()
|
|
|
|
// Pad values
|
|
if (r[0] & 0x80) r = [ 0 ].concat(r)
|
|
if (s[0] & 0x80) s = [ 0 ].concat(s)
|
|
|
|
var total = r.length + s.length + 4
|
|
var res = [ 0x30, total, 0x02, r.length ]
|
|
res = res.concat(r, [ 0x02, s.length ], s)
|
|
return new Buffer(res)
|
|
}
|
|
|
|
function getKey (x, q, hash, algo) {
|
|
x = new Buffer(x.toArray())
|
|
if (x.length < q.byteLength()) {
|
|
var zeros = new Buffer(q.byteLength() - x.length)
|
|
zeros.fill(0)
|
|
x = Buffer.concat([ zeros, x ])
|
|
}
|
|
var hlen = hash.length
|
|
var hbits = bits2octets(hash, q)
|
|
var v = new Buffer(hlen)
|
|
v.fill(1)
|
|
var k = new Buffer(hlen)
|
|
k.fill(0)
|
|
k = createHmac(algo, k).update(v).update(new Buffer([ 0 ])).update(x).update(hbits).digest()
|
|
v = createHmac(algo, k).update(v).digest()
|
|
k = createHmac(algo, k).update(v).update(new Buffer([ 1 ])).update(x).update(hbits).digest()
|
|
v = createHmac(algo, k).update(v).digest()
|
|
return { k: k, v: v }
|
|
}
|
|
|
|
function bits2int (obits, q) {
|
|
var bits = new BN(obits)
|
|
var shift = (obits.length << 3) - q.bitLength()
|
|
if (shift > 0) bits.ishrn(shift)
|
|
return bits
|
|
}
|
|
|
|
function bits2octets (bits, q) {
|
|
bits = bits2int(bits, q)
|
|
bits = bits.mod(q)
|
|
var out = new Buffer(bits.toArray())
|
|
if (out.length < q.byteLength()) {
|
|
var zeros = new Buffer(q.byteLength() - out.length)
|
|
zeros.fill(0)
|
|
out = Buffer.concat([ zeros, out ])
|
|
}
|
|
return out
|
|
}
|
|
|
|
function makeKey (q, kv, algo) {
|
|
var t
|
|
var k
|
|
|
|
do {
|
|
t = new Buffer(0)
|
|
|
|
while (t.length * 8 < q.bitLength()) {
|
|
kv.v = createHmac(algo, kv.k).update(kv.v).digest()
|
|
t = Buffer.concat([ t, kv.v ])
|
|
}
|
|
|
|
k = bits2int(t, q)
|
|
kv.k = createHmac(algo, kv.k).update(kv.v).update(new Buffer([ 0 ])).digest()
|
|
kv.v = createHmac(algo, kv.k).update(kv.v).digest()
|
|
} while (k.cmp(q) !== -1)
|
|
|
|
return k
|
|
}
|
|
|
|
function makeR (g, k, p, q) {
|
|
return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q)
|
|
}
|
|
|
|
module.exports = sign
|
|
module.exports.getKey = getKey
|
|
module.exports.makeKey = makeKey
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"./curves.json":42,"bn.js":16,"browserify-rsa":39,"buffer":48,"create-hmac":54,"elliptic":67,"parse-asn1":110}],45:[function(require,module,exports){
|
|
(function (Buffer){
|
|
// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js
|
|
var BN = require('bn.js')
|
|
var EC = require('elliptic').ec
|
|
var parseKeys = require('parse-asn1')
|
|
var curves = require('./curves.json')
|
|
|
|
function verify (sig, hash, key, signType, tag) {
|
|
var pub = parseKeys(key)
|
|
if (pub.type === 'ec') {
|
|
// rsa keys can be interpreted as ecdsa ones in openssl
|
|
if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type')
|
|
return ecVerify(sig, hash, pub)
|
|
} else if (pub.type === 'dsa') {
|
|
if (signType !== 'dsa') throw new Error('wrong public key type')
|
|
return dsaVerify(sig, hash, pub)
|
|
} else {
|
|
if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type')
|
|
}
|
|
hash = Buffer.concat([tag, hash])
|
|
var len = pub.modulus.byteLength()
|
|
var pad = [ 1 ]
|
|
var padNum = 0
|
|
while (hash.length + pad.length + 2 < len) {
|
|
pad.push(0xff)
|
|
padNum++
|
|
}
|
|
pad.push(0x00)
|
|
var i = -1
|
|
while (++i < hash.length) {
|
|
pad.push(hash[i])
|
|
}
|
|
pad = new Buffer(pad)
|
|
var red = BN.mont(pub.modulus)
|
|
sig = new BN(sig).toRed(red)
|
|
|
|
sig = sig.redPow(new BN(pub.publicExponent))
|
|
sig = new Buffer(sig.fromRed().toArray())
|
|
var out = padNum < 8 ? 1 : 0
|
|
len = Math.min(sig.length, pad.length)
|
|
if (sig.length !== pad.length) out = 1
|
|
|
|
i = -1
|
|
while (++i < len) out |= sig[i] ^ pad[i]
|
|
return out === 0
|
|
}
|
|
|
|
function ecVerify (sig, hash, pub) {
|
|
var curveId = curves[pub.data.algorithm.curve.join('.')]
|
|
if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.'))
|
|
|
|
var curve = new EC(curveId)
|
|
var pubkey = pub.data.subjectPrivateKey.data
|
|
|
|
return curve.verify(hash, sig, pubkey)
|
|
}
|
|
|
|
function dsaVerify (sig, hash, pub) {
|
|
var p = pub.data.p
|
|
var q = pub.data.q
|
|
var g = pub.data.g
|
|
var y = pub.data.pub_key
|
|
var unpacked = parseKeys.signature.decode(sig, 'der')
|
|
var s = unpacked.s
|
|
var r = unpacked.r
|
|
checkValue(s, q)
|
|
checkValue(r, q)
|
|
var montp = BN.mont(p)
|
|
var w = s.invm(q)
|
|
var v = g.toRed(montp)
|
|
.redPow(new BN(hash).mul(w).mod(q))
|
|
.fromRed()
|
|
.mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed())
|
|
.mod(p)
|
|
.mod(q)
|
|
return v.cmp(r) === 0
|
|
}
|
|
|
|
function checkValue (b, q) {
|
|
if (b.cmpn(0) <= 0) throw new Error('invalid sig')
|
|
if (b.cmp(q) >= q) throw new Error('invalid sig')
|
|
}
|
|
|
|
module.exports = verify
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"./curves.json":42,"bn.js":16,"buffer":48,"elliptic":67,"parse-asn1":110}],46:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
'use strict';
|
|
|
|
/*<replacement>*/
|
|
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
/*</replacement>*/
|
|
|
|
var isEncoding = Buffer.isEncoding || function (encoding) {
|
|
encoding = '' + encoding;
|
|
switch (encoding && encoding.toLowerCase()) {
|
|
case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
};
|
|
|
|
function _normalizeEncoding(enc) {
|
|
if (!enc) return 'utf8';
|
|
var retried;
|
|
while (true) {
|
|
switch (enc) {
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return 'utf8';
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return 'utf16le';
|
|
case 'latin1':
|
|
case 'binary':
|
|
return 'latin1';
|
|
case 'base64':
|
|
case 'ascii':
|
|
case 'hex':
|
|
return enc;
|
|
default:
|
|
if (retried) return; // undefined
|
|
enc = ('' + enc).toLowerCase();
|
|
retried = true;
|
|
}
|
|
}
|
|
};
|
|
|
|
// Do not cache `Buffer.isEncoding` when checking encoding names as some
|
|
// modules monkey-patch it to support additional encodings
|
|
function normalizeEncoding(enc) {
|
|
var nenc = _normalizeEncoding(enc);
|
|
if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
|
|
return nenc || enc;
|
|
}
|
|
|
|
// StringDecoder provides an interface for efficiently splitting a series of
|
|
// buffers into a series of JS strings without breaking apart multi-byte
|
|
// characters.
|
|
exports.StringDecoder = StringDecoder;
|
|
function StringDecoder(encoding) {
|
|
this.encoding = normalizeEncoding(encoding);
|
|
var nb;
|
|
switch (this.encoding) {
|
|
case 'utf16le':
|
|
this.text = utf16Text;
|
|
this.end = utf16End;
|
|
nb = 4;
|
|
break;
|
|
case 'utf8':
|
|
this.fillLast = utf8FillLast;
|
|
nb = 4;
|
|
break;
|
|
case 'base64':
|
|
this.text = base64Text;
|
|
this.end = base64End;
|
|
nb = 3;
|
|
break;
|
|
default:
|
|
this.write = simpleWrite;
|
|
this.end = simpleEnd;
|
|
return;
|
|
}
|
|
this.lastNeed = 0;
|
|
this.lastTotal = 0;
|
|
this.lastChar = Buffer.allocUnsafe(nb);
|
|
}
|
|
|
|
StringDecoder.prototype.write = function (buf) {
|
|
if (buf.length === 0) return '';
|
|
var r;
|
|
var i;
|
|
if (this.lastNeed) {
|
|
r = this.fillLast(buf);
|
|
if (r === undefined) return '';
|
|
i = this.lastNeed;
|
|
this.lastNeed = 0;
|
|
} else {
|
|
i = 0;
|
|
}
|
|
if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
|
|
return r || '';
|
|
};
|
|
|
|
StringDecoder.prototype.end = utf8End;
|
|
|
|
// Returns only complete characters in a Buffer
|
|
StringDecoder.prototype.text = utf8Text;
|
|
|
|
// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
|
|
StringDecoder.prototype.fillLast = function (buf) {
|
|
if (this.lastNeed <= buf.length) {
|
|
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
|
|
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
|
|
}
|
|
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
|
|
this.lastNeed -= buf.length;
|
|
};
|
|
|
|
// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
|
|
// continuation byte. If an invalid byte is detected, -2 is returned.
|
|
function utf8CheckByte(byte) {
|
|
if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
|
|
return byte >> 6 === 0x02 ? -1 : -2;
|
|
}
|
|
|
|
// Checks at most 3 bytes at the end of a Buffer in order to detect an
|
|
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
|
|
// needed to complete the UTF-8 character (if applicable) are returned.
|
|
function utf8CheckIncomplete(self, buf, i) {
|
|
var j = buf.length - 1;
|
|
if (j < i) return 0;
|
|
var nb = utf8CheckByte(buf[j]);
|
|
if (nb >= 0) {
|
|
if (nb > 0) self.lastNeed = nb - 1;
|
|
return nb;
|
|
}
|
|
if (--j < i || nb === -2) return 0;
|
|
nb = utf8CheckByte(buf[j]);
|
|
if (nb >= 0) {
|
|
if (nb > 0) self.lastNeed = nb - 2;
|
|
return nb;
|
|
}
|
|
if (--j < i || nb === -2) return 0;
|
|
nb = utf8CheckByte(buf[j]);
|
|
if (nb >= 0) {
|
|
if (nb > 0) {
|
|
if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
|
|
}
|
|
return nb;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Validates as many continuation bytes for a multi-byte UTF-8 character as
|
|
// needed or are available. If we see a non-continuation byte where we expect
|
|
// one, we "replace" the validated continuation bytes we've seen so far with
|
|
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
|
|
// behavior. The continuation byte check is included three times in the case
|
|
// where all of the continuation bytes for a character exist in the same buffer.
|
|
// It is also done this way as a slight performance increase instead of using a
|
|
// loop.
|
|
function utf8CheckExtraBytes(self, buf, p) {
|
|
if ((buf[0] & 0xC0) !== 0x80) {
|
|
self.lastNeed = 0;
|
|
return '\ufffd';
|
|
}
|
|
if (self.lastNeed > 1 && buf.length > 1) {
|
|
if ((buf[1] & 0xC0) !== 0x80) {
|
|
self.lastNeed = 1;
|
|
return '\ufffd';
|
|
}
|
|
if (self.lastNeed > 2 && buf.length > 2) {
|
|
if ((buf[2] & 0xC0) !== 0x80) {
|
|
self.lastNeed = 2;
|
|
return '\ufffd';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
|
|
function utf8FillLast(buf) {
|
|
var p = this.lastTotal - this.lastNeed;
|
|
var r = utf8CheckExtraBytes(this, buf, p);
|
|
if (r !== undefined) return r;
|
|
if (this.lastNeed <= buf.length) {
|
|
buf.copy(this.lastChar, p, 0, this.lastNeed);
|
|
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
|
|
}
|
|
buf.copy(this.lastChar, p, 0, buf.length);
|
|
this.lastNeed -= buf.length;
|
|
}
|
|
|
|
// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
|
|
// partial character, the character's bytes are buffered until the required
|
|
// number of bytes are available.
|
|
function utf8Text(buf, i) {
|
|
var total = utf8CheckIncomplete(this, buf, i);
|
|
if (!this.lastNeed) return buf.toString('utf8', i);
|
|
this.lastTotal = total;
|
|
var end = buf.length - (total - this.lastNeed);
|
|
buf.copy(this.lastChar, 0, end);
|
|
return buf.toString('utf8', i, end);
|
|
}
|
|
|
|
// For UTF-8, a replacement character is added when ending on a partial
|
|
// character.
|
|
function utf8End(buf) {
|
|
var r = buf && buf.length ? this.write(buf) : '';
|
|
if (this.lastNeed) return r + '\ufffd';
|
|
return r;
|
|
}
|
|
|
|
// UTF-16LE typically needs two bytes per character, but even if we have an even
|
|
// number of bytes available, we need to check if we end on a leading/high
|
|
// surrogate. In that case, we need to wait for the next two bytes in order to
|
|
// decode the last character properly.
|
|
function utf16Text(buf, i) {
|
|
if ((buf.length - i) % 2 === 0) {
|
|
var r = buf.toString('utf16le', i);
|
|
if (r) {
|
|
var c = r.charCodeAt(r.length - 1);
|
|
if (c >= 0xD800 && c <= 0xDBFF) {
|
|
this.lastNeed = 2;
|
|
this.lastTotal = 4;
|
|
this.lastChar[0] = buf[buf.length - 2];
|
|
this.lastChar[1] = buf[buf.length - 1];
|
|
return r.slice(0, -1);
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
this.lastNeed = 1;
|
|
this.lastTotal = 2;
|
|
this.lastChar[0] = buf[buf.length - 1];
|
|
return buf.toString('utf16le', i, buf.length - 1);
|
|
}
|
|
|
|
// For UTF-16LE we do not explicitly append special replacement characters if we
|
|
// end on a partial character, we simply let v8 handle that.
|
|
function utf16End(buf) {
|
|
var r = buf && buf.length ? this.write(buf) : '';
|
|
if (this.lastNeed) {
|
|
var end = this.lastTotal - this.lastNeed;
|
|
return r + this.lastChar.toString('utf16le', 0, end);
|
|
}
|
|
return r;
|
|
}
|
|
|
|
function base64Text(buf, i) {
|
|
var n = (buf.length - i) % 3;
|
|
if (n === 0) return buf.toString('base64', i);
|
|
this.lastNeed = 3 - n;
|
|
this.lastTotal = 3;
|
|
if (n === 1) {
|
|
this.lastChar[0] = buf[buf.length - 1];
|
|
} else {
|
|
this.lastChar[0] = buf[buf.length - 2];
|
|
this.lastChar[1] = buf[buf.length - 1];
|
|
}
|
|
return buf.toString('base64', i, buf.length - n);
|
|
}
|
|
|
|
function base64End(buf) {
|
|
var r = buf && buf.length ? this.write(buf) : '';
|
|
if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
|
|
return r;
|
|
}
|
|
|
|
// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
|
|
function simpleWrite(buf) {
|
|
return buf.toString(this.encoding);
|
|
}
|
|
|
|
function simpleEnd(buf) {
|
|
return buf && buf.length ? this.write(buf) : '';
|
|
}
|
|
},{"safe-buffer":144}],47:[function(require,module,exports){
|
|
(function (Buffer){
|
|
module.exports = function xor (a, b) {
|
|
var length = Math.min(a.length, b.length)
|
|
var buffer = new Buffer(length)
|
|
|
|
for (var i = 0; i < length; ++i) {
|
|
buffer[i] = a[i] ^ b[i]
|
|
}
|
|
|
|
return buffer
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"buffer":48}],48:[function(require,module,exports){
|
|
(function (Buffer){
|
|
/*!
|
|
* The buffer module from node.js, for the browser.
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @license MIT
|
|
*/
|
|
/* eslint-disable no-proto */
|
|
|
|
'use strict'
|
|
|
|
var base64 = require('base64-js')
|
|
var ieee754 = require('ieee754')
|
|
var customInspectSymbol =
|
|
(typeof Symbol === 'function' && typeof Symbol.for === 'function')
|
|
? Symbol.for('nodejs.util.inspect.custom')
|
|
: null
|
|
|
|
exports.Buffer = Buffer
|
|
exports.SlowBuffer = SlowBuffer
|
|
exports.INSPECT_MAX_BYTES = 50
|
|
|
|
var K_MAX_LENGTH = 0x7fffffff
|
|
exports.kMaxLength = K_MAX_LENGTH
|
|
|
|
/**
|
|
* If `Buffer.TYPED_ARRAY_SUPPORT`:
|
|
* === true Use Uint8Array implementation (fastest)
|
|
* === false Print warning and recommend using `buffer` v4.x which has an Object
|
|
* implementation (most compatible, even IE6)
|
|
*
|
|
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
|
|
* Opera 11.6+, iOS 4.2+.
|
|
*
|
|
* We report that the browser does not support typed arrays if the are not subclassable
|
|
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
|
|
* (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
|
|
* for __proto__ and has a buggy typed array implementation.
|
|
*/
|
|
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
|
|
|
|
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
|
|
typeof console.error === 'function') {
|
|
console.error(
|
|
'This browser lacks typed array (Uint8Array) support which is required by ' +
|
|
'`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
|
|
)
|
|
}
|
|
|
|
function typedArraySupport () {
|
|
// Can typed array instances can be augmented?
|
|
try {
|
|
var arr = new Uint8Array(1)
|
|
var proto = { foo: function () { return 42 } }
|
|
Object.setPrototypeOf(proto, Uint8Array.prototype)
|
|
Object.setPrototypeOf(arr, proto)
|
|
return arr.foo() === 42
|
|
} catch (e) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
Object.defineProperty(Buffer.prototype, 'parent', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.buffer
|
|
}
|
|
})
|
|
|
|
Object.defineProperty(Buffer.prototype, 'offset', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (!Buffer.isBuffer(this)) return undefined
|
|
return this.byteOffset
|
|
}
|
|
})
|
|
|
|
function createBuffer (length) {
|
|
if (length > K_MAX_LENGTH) {
|
|
throw new RangeError('The value "' + length + '" is invalid for option "size"')
|
|
}
|
|
// Return an augmented `Uint8Array` instance
|
|
var buf = new Uint8Array(length)
|
|
Object.setPrototypeOf(buf, Buffer.prototype)
|
|
return buf
|
|
}
|
|
|
|
/**
|
|
* The Buffer constructor returns instances of `Uint8Array` that have their
|
|
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
|
|
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
|
|
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
|
|
* returns a single octet.
|
|
*
|
|
* The `Uint8Array` prototype remains unmodified.
|
|
*/
|
|
|
|
function Buffer (arg, encodingOrOffset, length) {
|
|
// Common case.
|
|
if (typeof arg === 'number') {
|
|
if (typeof encodingOrOffset === 'string') {
|
|
throw new TypeError(
|
|
'The "string" argument must be of type string. Received type number'
|
|
)
|
|
}
|
|
return allocUnsafe(arg)
|
|
}
|
|
return from(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
|
|
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
|
|
Buffer[Symbol.species] === Buffer) {
|
|
Object.defineProperty(Buffer, Symbol.species, {
|
|
value: null,
|
|
configurable: true,
|
|
enumerable: false,
|
|
writable: false
|
|
})
|
|
}
|
|
|
|
Buffer.poolSize = 8192 // not used by this implementation
|
|
|
|
function from (value, encodingOrOffset, length) {
|
|
if (typeof value === 'string') {
|
|
return fromString(value, encodingOrOffset)
|
|
}
|
|
|
|
if (ArrayBuffer.isView(value)) {
|
|
return fromArrayLike(value)
|
|
}
|
|
|
|
if (value == null) {
|
|
throw new TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof value)
|
|
)
|
|
}
|
|
|
|
if (isInstance(value, ArrayBuffer) ||
|
|
(value && isInstance(value.buffer, ArrayBuffer))) {
|
|
return fromArrayBuffer(value, encodingOrOffset, length)
|
|
}
|
|
|
|
if (typeof value === 'number') {
|
|
throw new TypeError(
|
|
'The "value" argument must not be of type number. Received type number'
|
|
)
|
|
}
|
|
|
|
var valueOf = value.valueOf && value.valueOf()
|
|
if (valueOf != null && valueOf !== value) {
|
|
return Buffer.from(valueOf, encodingOrOffset, length)
|
|
}
|
|
|
|
var b = fromObject(value)
|
|
if (b) return b
|
|
|
|
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
|
|
typeof value[Symbol.toPrimitive] === 'function') {
|
|
return Buffer.from(
|
|
value[Symbol.toPrimitive]('string'), encodingOrOffset, length
|
|
)
|
|
}
|
|
|
|
throw new TypeError(
|
|
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
|
|
'or Array-like Object. Received type ' + (typeof value)
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
|
|
* if value is a number.
|
|
* Buffer.from(str[, encoding])
|
|
* Buffer.from(array)
|
|
* Buffer.from(buffer)
|
|
* Buffer.from(arrayBuffer[, byteOffset[, length]])
|
|
**/
|
|
Buffer.from = function (value, encodingOrOffset, length) {
|
|
return from(value, encodingOrOffset, length)
|
|
}
|
|
|
|
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
|
|
// https://github.com/feross/buffer/pull/148
|
|
Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)
|
|
Object.setPrototypeOf(Buffer, Uint8Array)
|
|
|
|
function assertSize (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('"size" argument must be of type number')
|
|
} else if (size < 0) {
|
|
throw new RangeError('The value "' + size + '" is invalid for option "size"')
|
|
}
|
|
}
|
|
|
|
function alloc (size, fill, encoding) {
|
|
assertSize(size)
|
|
if (size <= 0) {
|
|
return createBuffer(size)
|
|
}
|
|
if (fill !== undefined) {
|
|
// Only pay attention to encoding if it's a string. This
|
|
// prevents accidentally sending in a number that would
|
|
// be interpretted as a start offset.
|
|
return typeof encoding === 'string'
|
|
? createBuffer(size).fill(fill, encoding)
|
|
: createBuffer(size).fill(fill)
|
|
}
|
|
return createBuffer(size)
|
|
}
|
|
|
|
/**
|
|
* Creates a new filled Buffer instance.
|
|
* alloc(size[, fill[, encoding]])
|
|
**/
|
|
Buffer.alloc = function (size, fill, encoding) {
|
|
return alloc(size, fill, encoding)
|
|
}
|
|
|
|
function allocUnsafe (size) {
|
|
assertSize(size)
|
|
return createBuffer(size < 0 ? 0 : checked(size) | 0)
|
|
}
|
|
|
|
/**
|
|
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
|
|
* */
|
|
Buffer.allocUnsafe = function (size) {
|
|
return allocUnsafe(size)
|
|
}
|
|
/**
|
|
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
|
|
*/
|
|
Buffer.allocUnsafeSlow = function (size) {
|
|
return allocUnsafe(size)
|
|
}
|
|
|
|
function fromString (string, encoding) {
|
|
if (typeof encoding !== 'string' || encoding === '') {
|
|
encoding = 'utf8'
|
|
}
|
|
|
|
if (!Buffer.isEncoding(encoding)) {
|
|
throw new TypeError('Unknown encoding: ' + encoding)
|
|
}
|
|
|
|
var length = byteLength(string, encoding) | 0
|
|
var buf = createBuffer(length)
|
|
|
|
var actual = buf.write(string, encoding)
|
|
|
|
if (actual !== length) {
|
|
// Writing a hex string, for example, that contains invalid characters will
|
|
// cause everything after the first invalid character to be ignored. (e.g.
|
|
// 'abxxcd' will be treated as 'ab')
|
|
buf = buf.slice(0, actual)
|
|
}
|
|
|
|
return buf
|
|
}
|
|
|
|
function fromArrayLike (array) {
|
|
var length = array.length < 0 ? 0 : checked(array.length) | 0
|
|
var buf = createBuffer(length)
|
|
for (var i = 0; i < length; i += 1) {
|
|
buf[i] = array[i] & 255
|
|
}
|
|
return buf
|
|
}
|
|
|
|
function fromArrayBuffer (array, byteOffset, length) {
|
|
if (byteOffset < 0 || array.byteLength < byteOffset) {
|
|
throw new RangeError('"offset" is outside of buffer bounds')
|
|
}
|
|
|
|
if (array.byteLength < byteOffset + (length || 0)) {
|
|
throw new RangeError('"length" is outside of buffer bounds')
|
|
}
|
|
|
|
var buf
|
|
if (byteOffset === undefined && length === undefined) {
|
|
buf = new Uint8Array(array)
|
|
} else if (length === undefined) {
|
|
buf = new Uint8Array(array, byteOffset)
|
|
} else {
|
|
buf = new Uint8Array(array, byteOffset, length)
|
|
}
|
|
|
|
// Return an augmented `Uint8Array` instance
|
|
Object.setPrototypeOf(buf, Buffer.prototype)
|
|
|
|
return buf
|
|
}
|
|
|
|
function fromObject (obj) {
|
|
if (Buffer.isBuffer(obj)) {
|
|
var len = checked(obj.length) | 0
|
|
var buf = createBuffer(len)
|
|
|
|
if (buf.length === 0) {
|
|
return buf
|
|
}
|
|
|
|
obj.copy(buf, 0, 0, len)
|
|
return buf
|
|
}
|
|
|
|
if (obj.length !== undefined) {
|
|
if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
|
|
return createBuffer(0)
|
|
}
|
|
return fromArrayLike(obj)
|
|
}
|
|
|
|
if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
|
|
return fromArrayLike(obj.data)
|
|
}
|
|
}
|
|
|
|
function checked (length) {
|
|
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
|
|
// length is NaN (which is otherwise coerced to zero.)
|
|
if (length >= K_MAX_LENGTH) {
|
|
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
|
|
'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
|
|
}
|
|
return length | 0
|
|
}
|
|
|
|
function SlowBuffer (length) {
|
|
if (+length != length) { // eslint-disable-line eqeqeq
|
|
length = 0
|
|
}
|
|
return Buffer.alloc(+length)
|
|
}
|
|
|
|
Buffer.isBuffer = function isBuffer (b) {
|
|
return b != null && b._isBuffer === true &&
|
|
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
|
|
}
|
|
|
|
Buffer.compare = function compare (a, b) {
|
|
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
|
|
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
|
|
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
|
|
throw new TypeError(
|
|
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
|
|
)
|
|
}
|
|
|
|
if (a === b) return 0
|
|
|
|
var x = a.length
|
|
var y = b.length
|
|
|
|
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
|
|
if (a[i] !== b[i]) {
|
|
x = a[i]
|
|
y = b[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
if (x < y) return -1
|
|
if (y < x) return 1
|
|
return 0
|
|
}
|
|
|
|
Buffer.isEncoding = function isEncoding (encoding) {
|
|
switch (String(encoding).toLowerCase()) {
|
|
case 'hex':
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
case 'ascii':
|
|
case 'latin1':
|
|
case 'binary':
|
|
case 'base64':
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
Buffer.concat = function concat (list, length) {
|
|
if (!Array.isArray(list)) {
|
|
throw new TypeError('"list" argument must be an Array of Buffers')
|
|
}
|
|
|
|
if (list.length === 0) {
|
|
return Buffer.alloc(0)
|
|
}
|
|
|
|
var i
|
|
if (length === undefined) {
|
|
length = 0
|
|
for (i = 0; i < list.length; ++i) {
|
|
length += list[i].length
|
|
}
|
|
}
|
|
|
|
var buffer = Buffer.allocUnsafe(length)
|
|
var pos = 0
|
|
for (i = 0; i < list.length; ++i) {
|
|
var buf = list[i]
|
|
if (isInstance(buf, Uint8Array)) {
|
|
buf = Buffer.from(buf)
|
|
}
|
|
if (!Buffer.isBuffer(buf)) {
|
|
throw new TypeError('"list" argument must be an Array of Buffers')
|
|
}
|
|
buf.copy(buffer, pos)
|
|
pos += buf.length
|
|
}
|
|
return buffer
|
|
}
|
|
|
|
function byteLength (string, encoding) {
|
|
if (Buffer.isBuffer(string)) {
|
|
return string.length
|
|
}
|
|
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
|
|
return string.byteLength
|
|
}
|
|
if (typeof string !== 'string') {
|
|
throw new TypeError(
|
|
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
|
|
'Received type ' + typeof string
|
|
)
|
|
}
|
|
|
|
var len = string.length
|
|
var mustMatch = (arguments.length > 2 && arguments[2] === true)
|
|
if (!mustMatch && len === 0) return 0
|
|
|
|
// Use a for loop to avoid recursion
|
|
var loweredCase = false
|
|
for (;;) {
|
|
switch (encoding) {
|
|
case 'ascii':
|
|
case 'latin1':
|
|
case 'binary':
|
|
return len
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8ToBytes(string).length
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return len * 2
|
|
case 'hex':
|
|
return len >>> 1
|
|
case 'base64':
|
|
return base64ToBytes(string).length
|
|
default:
|
|
if (loweredCase) {
|
|
return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
|
|
}
|
|
encoding = ('' + encoding).toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
Buffer.byteLength = byteLength
|
|
|
|
function slowToString (encoding, start, end) {
|
|
var loweredCase = false
|
|
|
|
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
|
|
// property of a typed array.
|
|
|
|
// This behaves neither like String nor Uint8Array in that we set start/end
|
|
// to their upper/lower bounds if the value passed is out of range.
|
|
// undefined is handled specially as per ECMA-262 6th Edition,
|
|
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
|
|
if (start === undefined || start < 0) {
|
|
start = 0
|
|
}
|
|
// Return early if start > this.length. Done here to prevent potential uint32
|
|
// coercion fail below.
|
|
if (start > this.length) {
|
|
return ''
|
|
}
|
|
|
|
if (end === undefined || end > this.length) {
|
|
end = this.length
|
|
}
|
|
|
|
if (end <= 0) {
|
|
return ''
|
|
}
|
|
|
|
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
|
|
end >>>= 0
|
|
start >>>= 0
|
|
|
|
if (end <= start) {
|
|
return ''
|
|
}
|
|
|
|
if (!encoding) encoding = 'utf8'
|
|
|
|
while (true) {
|
|
switch (encoding) {
|
|
case 'hex':
|
|
return hexSlice(this, start, end)
|
|
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8Slice(this, start, end)
|
|
|
|
case 'ascii':
|
|
return asciiSlice(this, start, end)
|
|
|
|
case 'latin1':
|
|
case 'binary':
|
|
return latin1Slice(this, start, end)
|
|
|
|
case 'base64':
|
|
return base64Slice(this, start, end)
|
|
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return utf16leSlice(this, start, end)
|
|
|
|
default:
|
|
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
|
|
encoding = (encoding + '').toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
|
|
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
|
|
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
|
|
// reliably in a browserify context because there could be multiple different
|
|
// copies of the 'buffer' package in use. This method works even for Buffer
|
|
// instances that were created from another copy of the `buffer` package.
|
|
// See: https://github.com/feross/buffer/issues/154
|
|
Buffer.prototype._isBuffer = true
|
|
|
|
function swap (b, n, m) {
|
|
var i = b[n]
|
|
b[n] = b[m]
|
|
b[m] = i
|
|
}
|
|
|
|
Buffer.prototype.swap16 = function swap16 () {
|
|
var len = this.length
|
|
if (len % 2 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 16-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 2) {
|
|
swap(this, i, i + 1)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.swap32 = function swap32 () {
|
|
var len = this.length
|
|
if (len % 4 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 32-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 4) {
|
|
swap(this, i, i + 3)
|
|
swap(this, i + 1, i + 2)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.swap64 = function swap64 () {
|
|
var len = this.length
|
|
if (len % 8 !== 0) {
|
|
throw new RangeError('Buffer size must be a multiple of 64-bits')
|
|
}
|
|
for (var i = 0; i < len; i += 8) {
|
|
swap(this, i, i + 7)
|
|
swap(this, i + 1, i + 6)
|
|
swap(this, i + 2, i + 5)
|
|
swap(this, i + 3, i + 4)
|
|
}
|
|
return this
|
|
}
|
|
|
|
Buffer.prototype.toString = function toString () {
|
|
var length = this.length
|
|
if (length === 0) return ''
|
|
if (arguments.length === 0) return utf8Slice(this, 0, length)
|
|
return slowToString.apply(this, arguments)
|
|
}
|
|
|
|
Buffer.prototype.toLocaleString = Buffer.prototype.toString
|
|
|
|
Buffer.prototype.equals = function equals (b) {
|
|
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
|
|
if (this === b) return true
|
|
return Buffer.compare(this, b) === 0
|
|
}
|
|
|
|
Buffer.prototype.inspect = function inspect () {
|
|
var str = ''
|
|
var max = exports.INSPECT_MAX_BYTES
|
|
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
|
|
if (this.length > max) str += ' ... '
|
|
return '<Buffer ' + str + '>'
|
|
}
|
|
if (customInspectSymbol) {
|
|
Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect
|
|
}
|
|
|
|
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
|
|
if (isInstance(target, Uint8Array)) {
|
|
target = Buffer.from(target, target.offset, target.byteLength)
|
|
}
|
|
if (!Buffer.isBuffer(target)) {
|
|
throw new TypeError(
|
|
'The "target" argument must be one of type Buffer or Uint8Array. ' +
|
|
'Received type ' + (typeof target)
|
|
)
|
|
}
|
|
|
|
if (start === undefined) {
|
|
start = 0
|
|
}
|
|
if (end === undefined) {
|
|
end = target ? target.length : 0
|
|
}
|
|
if (thisStart === undefined) {
|
|
thisStart = 0
|
|
}
|
|
if (thisEnd === undefined) {
|
|
thisEnd = this.length
|
|
}
|
|
|
|
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
|
|
throw new RangeError('out of range index')
|
|
}
|
|
|
|
if (thisStart >= thisEnd && start >= end) {
|
|
return 0
|
|
}
|
|
if (thisStart >= thisEnd) {
|
|
return -1
|
|
}
|
|
if (start >= end) {
|
|
return 1
|
|
}
|
|
|
|
start >>>= 0
|
|
end >>>= 0
|
|
thisStart >>>= 0
|
|
thisEnd >>>= 0
|
|
|
|
if (this === target) return 0
|
|
|
|
var x = thisEnd - thisStart
|
|
var y = end - start
|
|
var len = Math.min(x, y)
|
|
|
|
var thisCopy = this.slice(thisStart, thisEnd)
|
|
var targetCopy = target.slice(start, end)
|
|
|
|
for (var i = 0; i < len; ++i) {
|
|
if (thisCopy[i] !== targetCopy[i]) {
|
|
x = thisCopy[i]
|
|
y = targetCopy[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
if (x < y) return -1
|
|
if (y < x) return 1
|
|
return 0
|
|
}
|
|
|
|
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
|
|
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
|
|
//
|
|
// Arguments:
|
|
// - buffer - a Buffer to search
|
|
// - val - a string, Buffer, or number
|
|
// - byteOffset - an index into `buffer`; will be clamped to an int32
|
|
// - encoding - an optional encoding, relevant is val is a string
|
|
// - dir - true for indexOf, false for lastIndexOf
|
|
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
|
|
// Empty buffer means no match
|
|
if (buffer.length === 0) return -1
|
|
|
|
// Normalize byteOffset
|
|
if (typeof byteOffset === 'string') {
|
|
encoding = byteOffset
|
|
byteOffset = 0
|
|
} else if (byteOffset > 0x7fffffff) {
|
|
byteOffset = 0x7fffffff
|
|
} else if (byteOffset < -0x80000000) {
|
|
byteOffset = -0x80000000
|
|
}
|
|
byteOffset = +byteOffset // Coerce to Number.
|
|
if (numberIsNaN(byteOffset)) {
|
|
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
|
|
byteOffset = dir ? 0 : (buffer.length - 1)
|
|
}
|
|
|
|
// Normalize byteOffset: negative offsets start from the end of the buffer
|
|
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
|
|
if (byteOffset >= buffer.length) {
|
|
if (dir) return -1
|
|
else byteOffset = buffer.length - 1
|
|
} else if (byteOffset < 0) {
|
|
if (dir) byteOffset = 0
|
|
else return -1
|
|
}
|
|
|
|
// Normalize val
|
|
if (typeof val === 'string') {
|
|
val = Buffer.from(val, encoding)
|
|
}
|
|
|
|
// Finally, search either indexOf (if dir is true) or lastIndexOf
|
|
if (Buffer.isBuffer(val)) {
|
|
// Special case: looking for empty string/buffer always fails
|
|
if (val.length === 0) {
|
|
return -1
|
|
}
|
|
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
|
|
} else if (typeof val === 'number') {
|
|
val = val & 0xFF // Search for a byte value [0-255]
|
|
if (typeof Uint8Array.prototype.indexOf === 'function') {
|
|
if (dir) {
|
|
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
|
|
} else {
|
|
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
|
|
}
|
|
}
|
|
return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)
|
|
}
|
|
|
|
throw new TypeError('val must be string, number or Buffer')
|
|
}
|
|
|
|
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
|
|
var indexSize = 1
|
|
var arrLength = arr.length
|
|
var valLength = val.length
|
|
|
|
if (encoding !== undefined) {
|
|
encoding = String(encoding).toLowerCase()
|
|
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
|
|
encoding === 'utf16le' || encoding === 'utf-16le') {
|
|
if (arr.length < 2 || val.length < 2) {
|
|
return -1
|
|
}
|
|
indexSize = 2
|
|
arrLength /= 2
|
|
valLength /= 2
|
|
byteOffset /= 2
|
|
}
|
|
}
|
|
|
|
function read (buf, i) {
|
|
if (indexSize === 1) {
|
|
return buf[i]
|
|
} else {
|
|
return buf.readUInt16BE(i * indexSize)
|
|
}
|
|
}
|
|
|
|
var i
|
|
if (dir) {
|
|
var foundIndex = -1
|
|
for (i = byteOffset; i < arrLength; i++) {
|
|
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
|
|
if (foundIndex === -1) foundIndex = i
|
|
if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
|
|
} else {
|
|
if (foundIndex !== -1) i -= i - foundIndex
|
|
foundIndex = -1
|
|
}
|
|
}
|
|
} else {
|
|
if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
|
|
for (i = byteOffset; i >= 0; i--) {
|
|
var found = true
|
|
for (var j = 0; j < valLength; j++) {
|
|
if (read(arr, i + j) !== read(val, j)) {
|
|
found = false
|
|
break
|
|
}
|
|
}
|
|
if (found) return i
|
|
}
|
|
}
|
|
|
|
return -1
|
|
}
|
|
|
|
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
|
|
return this.indexOf(val, byteOffset, encoding) !== -1
|
|
}
|
|
|
|
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
|
|
return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
|
|
}
|
|
|
|
Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
|
|
return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
|
|
}
|
|
|
|
function hexWrite (buf, string, offset, length) {
|
|
offset = Number(offset) || 0
|
|
var remaining = buf.length - offset
|
|
if (!length) {
|
|
length = remaining
|
|
} else {
|
|
length = Number(length)
|
|
if (length > remaining) {
|
|
length = remaining
|
|
}
|
|
}
|
|
|
|
var strLen = string.length
|
|
|
|
if (length > strLen / 2) {
|
|
length = strLen / 2
|
|
}
|
|
for (var i = 0; i < length; ++i) {
|
|
var parsed = parseInt(string.substr(i * 2, 2), 16)
|
|
if (numberIsNaN(parsed)) return i
|
|
buf[offset + i] = parsed
|
|
}
|
|
return i
|
|
}
|
|
|
|
function utf8Write (buf, string, offset, length) {
|
|
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
|
|
}
|
|
|
|
function asciiWrite (buf, string, offset, length) {
|
|
return blitBuffer(asciiToBytes(string), buf, offset, length)
|
|
}
|
|
|
|
function latin1Write (buf, string, offset, length) {
|
|
return asciiWrite(buf, string, offset, length)
|
|
}
|
|
|
|
function base64Write (buf, string, offset, length) {
|
|
return blitBuffer(base64ToBytes(string), buf, offset, length)
|
|
}
|
|
|
|
function ucs2Write (buf, string, offset, length) {
|
|
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
|
|
}
|
|
|
|
Buffer.prototype.write = function write (string, offset, length, encoding) {
|
|
// Buffer#write(string)
|
|
if (offset === undefined) {
|
|
encoding = 'utf8'
|
|
length = this.length
|
|
offset = 0
|
|
// Buffer#write(string, encoding)
|
|
} else if (length === undefined && typeof offset === 'string') {
|
|
encoding = offset
|
|
length = this.length
|
|
offset = 0
|
|
// Buffer#write(string, offset[, length][, encoding])
|
|
} else if (isFinite(offset)) {
|
|
offset = offset >>> 0
|
|
if (isFinite(length)) {
|
|
length = length >>> 0
|
|
if (encoding === undefined) encoding = 'utf8'
|
|
} else {
|
|
encoding = length
|
|
length = undefined
|
|
}
|
|
} else {
|
|
throw new Error(
|
|
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
|
|
)
|
|
}
|
|
|
|
var remaining = this.length - offset
|
|
if (length === undefined || length > remaining) length = remaining
|
|
|
|
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
|
|
throw new RangeError('Attempt to write outside buffer bounds')
|
|
}
|
|
|
|
if (!encoding) encoding = 'utf8'
|
|
|
|
var loweredCase = false
|
|
for (;;) {
|
|
switch (encoding) {
|
|
case 'hex':
|
|
return hexWrite(this, string, offset, length)
|
|
|
|
case 'utf8':
|
|
case 'utf-8':
|
|
return utf8Write(this, string, offset, length)
|
|
|
|
case 'ascii':
|
|
return asciiWrite(this, string, offset, length)
|
|
|
|
case 'latin1':
|
|
case 'binary':
|
|
return latin1Write(this, string, offset, length)
|
|
|
|
case 'base64':
|
|
// Warning: maxLength not taken into account in base64Write
|
|
return base64Write(this, string, offset, length)
|
|
|
|
case 'ucs2':
|
|
case 'ucs-2':
|
|
case 'utf16le':
|
|
case 'utf-16le':
|
|
return ucs2Write(this, string, offset, length)
|
|
|
|
default:
|
|
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
|
|
encoding = ('' + encoding).toLowerCase()
|
|
loweredCase = true
|
|
}
|
|
}
|
|
}
|
|
|
|
Buffer.prototype.toJSON = function toJSON () {
|
|
return {
|
|
type: 'Buffer',
|
|
data: Array.prototype.slice.call(this._arr || this, 0)
|
|
}
|
|
}
|
|
|
|
function base64Slice (buf, start, end) {
|
|
if (start === 0 && end === buf.length) {
|
|
return base64.fromByteArray(buf)
|
|
} else {
|
|
return base64.fromByteArray(buf.slice(start, end))
|
|
}
|
|
}
|
|
|
|
function utf8Slice (buf, start, end) {
|
|
end = Math.min(buf.length, end)
|
|
var res = []
|
|
|
|
var i = start
|
|
while (i < end) {
|
|
var firstByte = buf[i]
|
|
var codePoint = null
|
|
var bytesPerSequence = (firstByte > 0xEF) ? 4
|
|
: (firstByte > 0xDF) ? 3
|
|
: (firstByte > 0xBF) ? 2
|
|
: 1
|
|
|
|
if (i + bytesPerSequence <= end) {
|
|
var secondByte, thirdByte, fourthByte, tempCodePoint
|
|
|
|
switch (bytesPerSequence) {
|
|
case 1:
|
|
if (firstByte < 0x80) {
|
|
codePoint = firstByte
|
|
}
|
|
break
|
|
case 2:
|
|
secondByte = buf[i + 1]
|
|
if ((secondByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
|
|
if (tempCodePoint > 0x7F) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
break
|
|
case 3:
|
|
secondByte = buf[i + 1]
|
|
thirdByte = buf[i + 2]
|
|
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
|
|
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
break
|
|
case 4:
|
|
secondByte = buf[i + 1]
|
|
thirdByte = buf[i + 2]
|
|
fourthByte = buf[i + 3]
|
|
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
|
|
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
|
|
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
|
|
codePoint = tempCodePoint
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (codePoint === null) {
|
|
// we did not generate a valid codePoint so insert a
|
|
// replacement char (U+FFFD) and advance only 1 byte
|
|
codePoint = 0xFFFD
|
|
bytesPerSequence = 1
|
|
} else if (codePoint > 0xFFFF) {
|
|
// encode to utf16 (surrogate pair dance)
|
|
codePoint -= 0x10000
|
|
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
|
|
codePoint = 0xDC00 | codePoint & 0x3FF
|
|
}
|
|
|
|
res.push(codePoint)
|
|
i += bytesPerSequence
|
|
}
|
|
|
|
return decodeCodePointsArray(res)
|
|
}
|
|
|
|
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
|
|
// the lowest limit is Chrome, with 0x10000 args.
|
|
// We go 1 magnitude less, for safety
|
|
var MAX_ARGUMENTS_LENGTH = 0x1000
|
|
|
|
function decodeCodePointsArray (codePoints) {
|
|
var len = codePoints.length
|
|
if (len <= MAX_ARGUMENTS_LENGTH) {
|
|
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
|
|
}
|
|
|
|
// Decode in chunks to avoid "call stack size exceeded".
|
|
var res = ''
|
|
var i = 0
|
|
while (i < len) {
|
|
res += String.fromCharCode.apply(
|
|
String,
|
|
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
|
|
)
|
|
}
|
|
return res
|
|
}
|
|
|
|
function asciiSlice (buf, start, end) {
|
|
var ret = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; ++i) {
|
|
ret += String.fromCharCode(buf[i] & 0x7F)
|
|
}
|
|
return ret
|
|
}
|
|
|
|
function latin1Slice (buf, start, end) {
|
|
var ret = ''
|
|
end = Math.min(buf.length, end)
|
|
|
|
for (var i = start; i < end; ++i) {
|
|
ret += String.fromCharCode(buf[i])
|
|
}
|
|
return ret
|
|
}
|
|
|
|
function hexSlice (buf, start, end) {
|
|
var len = buf.length
|
|
|
|
if (!start || start < 0) start = 0
|
|
if (!end || end < 0 || end > len) end = len
|
|
|
|
var out = ''
|
|
for (var i = start; i < end; ++i) {
|
|
out += hexSliceLookupTable[buf[i]]
|
|
}
|
|
return out
|
|
}
|
|
|
|
function utf16leSlice (buf, start, end) {
|
|
var bytes = buf.slice(start, end)
|
|
var res = ''
|
|
for (var i = 0; i < bytes.length; i += 2) {
|
|
res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
|
|
}
|
|
return res
|
|
}
|
|
|
|
Buffer.prototype.slice = function slice (start, end) {
|
|
var len = this.length
|
|
start = ~~start
|
|
end = end === undefined ? len : ~~end
|
|
|
|
if (start < 0) {
|
|
start += len
|
|
if (start < 0) start = 0
|
|
} else if (start > len) {
|
|
start = len
|
|
}
|
|
|
|
if (end < 0) {
|
|
end += len
|
|
if (end < 0) end = 0
|
|
} else if (end > len) {
|
|
end = len
|
|
}
|
|
|
|
if (end < start) end = start
|
|
|
|
var newBuf = this.subarray(start, end)
|
|
// Return an augmented `Uint8Array` instance
|
|
Object.setPrototypeOf(newBuf, Buffer.prototype)
|
|
|
|
return newBuf
|
|
}
|
|
|
|
/*
|
|
* Need to make sure that buffer isn't trying to write out of bounds.
|
|
*/
|
|
function checkOffset (offset, ext, length) {
|
|
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
|
|
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
|
|
}
|
|
|
|
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var val = this[offset]
|
|
var mul = 1
|
|
var i = 0
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
val += this[offset + i] * mul
|
|
}
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
checkOffset(offset, byteLength, this.length)
|
|
}
|
|
|
|
var val = this[offset + --byteLength]
|
|
var mul = 1
|
|
while (byteLength > 0 && (mul *= 0x100)) {
|
|
val += this[offset + --byteLength] * mul
|
|
}
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 1, this.length)
|
|
return this[offset]
|
|
}
|
|
|
|
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
return this[offset] | (this[offset + 1] << 8)
|
|
}
|
|
|
|
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
return (this[offset] << 8) | this[offset + 1]
|
|
}
|
|
|
|
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return ((this[offset]) |
|
|
(this[offset + 1] << 8) |
|
|
(this[offset + 2] << 16)) +
|
|
(this[offset + 3] * 0x1000000)
|
|
}
|
|
|
|
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset] * 0x1000000) +
|
|
((this[offset + 1] << 16) |
|
|
(this[offset + 2] << 8) |
|
|
this[offset + 3])
|
|
}
|
|
|
|
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var val = this[offset]
|
|
var mul = 1
|
|
var i = 0
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
val += this[offset + i] * mul
|
|
}
|
|
mul *= 0x80
|
|
|
|
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) checkOffset(offset, byteLength, this.length)
|
|
|
|
var i = byteLength
|
|
var mul = 1
|
|
var val = this[offset + --i]
|
|
while (i > 0 && (mul *= 0x100)) {
|
|
val += this[offset + --i] * mul
|
|
}
|
|
mul *= 0x80
|
|
|
|
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
|
|
|
|
return val
|
|
}
|
|
|
|
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 1, this.length)
|
|
if (!(this[offset] & 0x80)) return (this[offset])
|
|
return ((0xff - this[offset] + 1) * -1)
|
|
}
|
|
|
|
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
var val = this[offset] | (this[offset + 1] << 8)
|
|
return (val & 0x8000) ? val | 0xFFFF0000 : val
|
|
}
|
|
|
|
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 2, this.length)
|
|
var val = this[offset + 1] | (this[offset] << 8)
|
|
return (val & 0x8000) ? val | 0xFFFF0000 : val
|
|
}
|
|
|
|
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset]) |
|
|
(this[offset + 1] << 8) |
|
|
(this[offset + 2] << 16) |
|
|
(this[offset + 3] << 24)
|
|
}
|
|
|
|
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
|
|
return (this[offset] << 24) |
|
|
(this[offset + 1] << 16) |
|
|
(this[offset + 2] << 8) |
|
|
(this[offset + 3])
|
|
}
|
|
|
|
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
return ieee754.read(this, offset, true, 23, 4)
|
|
}
|
|
|
|
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 4, this.length)
|
|
return ieee754.read(this, offset, false, 23, 4)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 8, this.length)
|
|
return ieee754.read(this, offset, true, 52, 8)
|
|
}
|
|
|
|
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkOffset(offset, 8, this.length)
|
|
return ieee754.read(this, offset, false, 52, 8)
|
|
}
|
|
|
|
function checkInt (buf, value, offset, ext, max, min) {
|
|
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
|
|
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
|
|
if (offset + ext > buf.length) throw new RangeError('Index out of range')
|
|
}
|
|
|
|
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
var maxBytes = Math.pow(2, 8 * byteLength) - 1
|
|
checkInt(this, value, offset, byteLength, maxBytes, 0)
|
|
}
|
|
|
|
var mul = 1
|
|
var i = 0
|
|
this[offset] = value & 0xFF
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
this[offset + i] = (value / mul) & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
byteLength = byteLength >>> 0
|
|
if (!noAssert) {
|
|
var maxBytes = Math.pow(2, 8 * byteLength) - 1
|
|
checkInt(this, value, offset, byteLength, maxBytes, 0)
|
|
}
|
|
|
|
var i = byteLength - 1
|
|
var mul = 1
|
|
this[offset + i] = value & 0xFF
|
|
while (--i >= 0 && (mul *= 0x100)) {
|
|
this[offset + i] = (value / mul) & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
|
|
this[offset] = (value & 0xff)
|
|
return offset + 1
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
|
|
this[offset] = (value >>> 8)
|
|
this[offset + 1] = (value & 0xff)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
|
|
this[offset + 3] = (value >>> 24)
|
|
this[offset + 2] = (value >>> 16)
|
|
this[offset + 1] = (value >>> 8)
|
|
this[offset] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
|
|
this[offset] = (value >>> 24)
|
|
this[offset + 1] = (value >>> 16)
|
|
this[offset + 2] = (value >>> 8)
|
|
this[offset + 3] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
var limit = Math.pow(2, (8 * byteLength) - 1)
|
|
|
|
checkInt(this, value, offset, byteLength, limit - 1, -limit)
|
|
}
|
|
|
|
var i = 0
|
|
var mul = 1
|
|
var sub = 0
|
|
this[offset] = value & 0xFF
|
|
while (++i < byteLength && (mul *= 0x100)) {
|
|
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
|
|
sub = 1
|
|
}
|
|
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
var limit = Math.pow(2, (8 * byteLength) - 1)
|
|
|
|
checkInt(this, value, offset, byteLength, limit - 1, -limit)
|
|
}
|
|
|
|
var i = byteLength - 1
|
|
var mul = 1
|
|
var sub = 0
|
|
this[offset + i] = value & 0xFF
|
|
while (--i >= 0 && (mul *= 0x100)) {
|
|
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
|
|
sub = 1
|
|
}
|
|
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
|
|
}
|
|
|
|
return offset + byteLength
|
|
}
|
|
|
|
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
|
|
if (value < 0) value = 0xff + value + 1
|
|
this[offset] = (value & 0xff)
|
|
return offset + 1
|
|
}
|
|
|
|
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
|
|
this[offset] = (value >>> 8)
|
|
this[offset + 1] = (value & 0xff)
|
|
return offset + 2
|
|
}
|
|
|
|
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
|
|
this[offset] = (value & 0xff)
|
|
this[offset + 1] = (value >>> 8)
|
|
this[offset + 2] = (value >>> 16)
|
|
this[offset + 3] = (value >>> 24)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
|
|
if (value < 0) value = 0xffffffff + value + 1
|
|
this[offset] = (value >>> 24)
|
|
this[offset + 1] = (value >>> 16)
|
|
this[offset + 2] = (value >>> 8)
|
|
this[offset + 3] = (value & 0xff)
|
|
return offset + 4
|
|
}
|
|
|
|
function checkIEEE754 (buf, value, offset, ext, max, min) {
|
|
if (offset + ext > buf.length) throw new RangeError('Index out of range')
|
|
if (offset < 0) throw new RangeError('Index out of range')
|
|
}
|
|
|
|
function writeFloat (buf, value, offset, littleEndian, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
|
|
}
|
|
ieee754.write(buf, value, offset, littleEndian, 23, 4)
|
|
return offset + 4
|
|
}
|
|
|
|
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
|
|
return writeFloat(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
function writeDouble (buf, value, offset, littleEndian, noAssert) {
|
|
value = +value
|
|
offset = offset >>> 0
|
|
if (!noAssert) {
|
|
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
|
|
}
|
|
ieee754.write(buf, value, offset, littleEndian, 52, 8)
|
|
return offset + 8
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, true, noAssert)
|
|
}
|
|
|
|
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
|
|
return writeDouble(this, value, offset, false, noAssert)
|
|
}
|
|
|
|
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
|
|
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
|
|
if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
|
|
if (!start) start = 0
|
|
if (!end && end !== 0) end = this.length
|
|
if (targetStart >= target.length) targetStart = target.length
|
|
if (!targetStart) targetStart = 0
|
|
if (end > 0 && end < start) end = start
|
|
|
|
// Copy 0 bytes; we're done
|
|
if (end === start) return 0
|
|
if (target.length === 0 || this.length === 0) return 0
|
|
|
|
// Fatal error conditions
|
|
if (targetStart < 0) {
|
|
throw new RangeError('targetStart out of bounds')
|
|
}
|
|
if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
|
|
if (end < 0) throw new RangeError('sourceEnd out of bounds')
|
|
|
|
// Are we oob?
|
|
if (end > this.length) end = this.length
|
|
if (target.length - targetStart < end - start) {
|
|
end = target.length - targetStart + start
|
|
}
|
|
|
|
var len = end - start
|
|
|
|
if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
|
|
// Use built-in when available, missing from IE11
|
|
this.copyWithin(targetStart, start, end)
|
|
} else if (this === target && start < targetStart && targetStart < end) {
|
|
// descending copy from end
|
|
for (var i = len - 1; i >= 0; --i) {
|
|
target[i + targetStart] = this[i + start]
|
|
}
|
|
} else {
|
|
Uint8Array.prototype.set.call(
|
|
target,
|
|
this.subarray(start, end),
|
|
targetStart
|
|
)
|
|
}
|
|
|
|
return len
|
|
}
|
|
|
|
// Usage:
|
|
// buffer.fill(number[, offset[, end]])
|
|
// buffer.fill(buffer[, offset[, end]])
|
|
// buffer.fill(string[, offset[, end]][, encoding])
|
|
Buffer.prototype.fill = function fill (val, start, end, encoding) {
|
|
// Handle string cases:
|
|
if (typeof val === 'string') {
|
|
if (typeof start === 'string') {
|
|
encoding = start
|
|
start = 0
|
|
end = this.length
|
|
} else if (typeof end === 'string') {
|
|
encoding = end
|
|
end = this.length
|
|
}
|
|
if (encoding !== undefined && typeof encoding !== 'string') {
|
|
throw new TypeError('encoding must be a string')
|
|
}
|
|
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
|
|
throw new TypeError('Unknown encoding: ' + encoding)
|
|
}
|
|
if (val.length === 1) {
|
|
var code = val.charCodeAt(0)
|
|
if ((encoding === 'utf8' && code < 128) ||
|
|
encoding === 'latin1') {
|
|
// Fast path: If `val` fits into a single byte, use that numeric value.
|
|
val = code
|
|
}
|
|
}
|
|
} else if (typeof val === 'number') {
|
|
val = val & 255
|
|
} else if (typeof val === 'boolean') {
|
|
val = Number(val)
|
|
}
|
|
|
|
// Invalid ranges are not set to a default, so can range check early.
|
|
if (start < 0 || this.length < start || this.length < end) {
|
|
throw new RangeError('Out of range index')
|
|
}
|
|
|
|
if (end <= start) {
|
|
return this
|
|
}
|
|
|
|
start = start >>> 0
|
|
end = end === undefined ? this.length : end >>> 0
|
|
|
|
if (!val) val = 0
|
|
|
|
var i
|
|
if (typeof val === 'number') {
|
|
for (i = start; i < end; ++i) {
|
|
this[i] = val
|
|
}
|
|
} else {
|
|
var bytes = Buffer.isBuffer(val)
|
|
? val
|
|
: Buffer.from(val, encoding)
|
|
var len = bytes.length
|
|
if (len === 0) {
|
|
throw new TypeError('The value "' + val +
|
|
'" is invalid for argument "value"')
|
|
}
|
|
for (i = 0; i < end - start; ++i) {
|
|
this[i + start] = bytes[i % len]
|
|
}
|
|
}
|
|
|
|
return this
|
|
}
|
|
|
|
// HELPER FUNCTIONS
|
|
// ================
|
|
|
|
var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
|
|
|
|
function base64clean (str) {
|
|
// Node takes equal signs as end of the Base64 encoding
|
|
str = str.split('=')[0]
|
|
// Node strips out invalid characters like \n and \t from the string, base64-js does not
|
|
str = str.trim().replace(INVALID_BASE64_RE, '')
|
|
// Node converts strings with length < 2 to ''
|
|
if (str.length < 2) return ''
|
|
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
|
|
while (str.length % 4 !== 0) {
|
|
str = str + '='
|
|
}
|
|
return str
|
|
}
|
|
|
|
function utf8ToBytes (string, units) {
|
|
units = units || Infinity
|
|
var codePoint
|
|
var length = string.length
|
|
var leadSurrogate = null
|
|
var bytes = []
|
|
|
|
for (var i = 0; i < length; ++i) {
|
|
codePoint = string.charCodeAt(i)
|
|
|
|
// is surrogate component
|
|
if (codePoint > 0xD7FF && codePoint < 0xE000) {
|
|
// last char was a lead
|
|
if (!leadSurrogate) {
|
|
// no lead yet
|
|
if (codePoint > 0xDBFF) {
|
|
// unexpected trail
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
continue
|
|
} else if (i + 1 === length) {
|
|
// unpaired lead
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
continue
|
|
}
|
|
|
|
// valid lead
|
|
leadSurrogate = codePoint
|
|
|
|
continue
|
|
}
|
|
|
|
// 2 leads in a row
|
|
if (codePoint < 0xDC00) {
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
leadSurrogate = codePoint
|
|
continue
|
|
}
|
|
|
|
// valid surrogate pair
|
|
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
|
|
} else if (leadSurrogate) {
|
|
// valid bmp char, but last char was a lead
|
|
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
|
|
}
|
|
|
|
leadSurrogate = null
|
|
|
|
// encode utf8
|
|
if (codePoint < 0x80) {
|
|
if ((units -= 1) < 0) break
|
|
bytes.push(codePoint)
|
|
} else if (codePoint < 0x800) {
|
|
if ((units -= 2) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0x6 | 0xC0,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else if (codePoint < 0x10000) {
|
|
if ((units -= 3) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0xC | 0xE0,
|
|
codePoint >> 0x6 & 0x3F | 0x80,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else if (codePoint < 0x110000) {
|
|
if ((units -= 4) < 0) break
|
|
bytes.push(
|
|
codePoint >> 0x12 | 0xF0,
|
|
codePoint >> 0xC & 0x3F | 0x80,
|
|
codePoint >> 0x6 & 0x3F | 0x80,
|
|
codePoint & 0x3F | 0x80
|
|
)
|
|
} else {
|
|
throw new Error('Invalid code point')
|
|
}
|
|
}
|
|
|
|
return bytes
|
|
}
|
|
|
|
function asciiToBytes (str) {
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; ++i) {
|
|
// Node's code seems to be doing this and not & 0x7F..
|
|
byteArray.push(str.charCodeAt(i) & 0xFF)
|
|
}
|
|
return byteArray
|
|
}
|
|
|
|
function utf16leToBytes (str, units) {
|
|
var c, hi, lo
|
|
var byteArray = []
|
|
for (var i = 0; i < str.length; ++i) {
|
|
if ((units -= 2) < 0) break
|
|
|
|
c = str.charCodeAt(i)
|
|
hi = c >> 8
|
|
lo = c % 256
|
|
byteArray.push(lo)
|
|
byteArray.push(hi)
|
|
}
|
|
|
|
return byteArray
|
|
}
|
|
|
|
function base64ToBytes (str) {
|
|
return base64.toByteArray(base64clean(str))
|
|
}
|
|
|
|
function blitBuffer (src, dst, offset, length) {
|
|
for (var i = 0; i < length; ++i) {
|
|
if ((i + offset >= dst.length) || (i >= src.length)) break
|
|
dst[i + offset] = src[i]
|
|
}
|
|
return i
|
|
}
|
|
|
|
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
|
|
// the `instanceof` check but they should be treated as of that type.
|
|
// See: https://github.com/feross/buffer/issues/166
|
|
function isInstance (obj, type) {
|
|
return obj instanceof type ||
|
|
(obj != null && obj.constructor != null && obj.constructor.name != null &&
|
|
obj.constructor.name === type.name)
|
|
}
|
|
function numberIsNaN (obj) {
|
|
// For IE11 support
|
|
return obj !== obj // eslint-disable-line no-self-compare
|
|
}
|
|
|
|
// Create lookup table for `toString('hex')`
|
|
// See: https://github.com/feross/buffer/issues/219
|
|
var hexSliceLookupTable = (function () {
|
|
var alphabet = '0123456789abcdef'
|
|
var table = new Array(256)
|
|
for (var i = 0; i < 16; ++i) {
|
|
var i16 = i * 16
|
|
for (var j = 0; j < 16; ++j) {
|
|
table[i16 + j] = alphabet[i] + alphabet[j]
|
|
}
|
|
}
|
|
return table
|
|
})()
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"base64-js":15,"buffer":48,"ieee754":99}],49:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var Transform = require('stream').Transform
|
|
var StringDecoder = require('string_decoder').StringDecoder
|
|
var inherits = require('inherits')
|
|
|
|
function CipherBase (hashMode) {
|
|
Transform.call(this)
|
|
this.hashMode = typeof hashMode === 'string'
|
|
if (this.hashMode) {
|
|
this[hashMode] = this._finalOrDigest
|
|
} else {
|
|
this.final = this._finalOrDigest
|
|
}
|
|
if (this._final) {
|
|
this.__final = this._final
|
|
this._final = null
|
|
}
|
|
this._decoder = null
|
|
this._encoding = null
|
|
}
|
|
inherits(CipherBase, Transform)
|
|
|
|
CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
|
|
if (typeof data === 'string') {
|
|
data = Buffer.from(data, inputEnc)
|
|
}
|
|
|
|
var outData = this._update(data)
|
|
if (this.hashMode) return this
|
|
|
|
if (outputEnc) {
|
|
outData = this._toString(outData, outputEnc)
|
|
}
|
|
|
|
return outData
|
|
}
|
|
|
|
CipherBase.prototype.setAutoPadding = function () {}
|
|
CipherBase.prototype.getAuthTag = function () {
|
|
throw new Error('trying to get auth tag in unsupported state')
|
|
}
|
|
|
|
CipherBase.prototype.setAuthTag = function () {
|
|
throw new Error('trying to set auth tag in unsupported state')
|
|
}
|
|
|
|
CipherBase.prototype.setAAD = function () {
|
|
throw new Error('trying to set aad in unsupported state')
|
|
}
|
|
|
|
CipherBase.prototype._transform = function (data, _, next) {
|
|
var err
|
|
try {
|
|
if (this.hashMode) {
|
|
this._update(data)
|
|
} else {
|
|
this.push(this._update(data))
|
|
}
|
|
} catch (e) {
|
|
err = e
|
|
} finally {
|
|
next(err)
|
|
}
|
|
}
|
|
CipherBase.prototype._flush = function (done) {
|
|
var err
|
|
try {
|
|
this.push(this.__final())
|
|
} catch (e) {
|
|
err = e
|
|
}
|
|
|
|
done(err)
|
|
}
|
|
CipherBase.prototype._finalOrDigest = function (outputEnc) {
|
|
var outData = this.__final() || Buffer.alloc(0)
|
|
if (outputEnc) {
|
|
outData = this._toString(outData, outputEnc, true)
|
|
}
|
|
return outData
|
|
}
|
|
|
|
CipherBase.prototype._toString = function (value, enc, fin) {
|
|
if (!this._decoder) {
|
|
this._decoder = new StringDecoder(enc)
|
|
this._encoding = enc
|
|
}
|
|
|
|
if (this._encoding !== enc) throw new Error('can\'t switch encodings')
|
|
|
|
var out = this._decoder.write(value)
|
|
if (fin) {
|
|
out += this._decoder.end()
|
|
}
|
|
|
|
return out
|
|
}
|
|
|
|
module.exports = CipherBase
|
|
|
|
},{"inherits":100,"safe-buffer":144,"stream":154,"string_decoder":46}],50:[function(require,module,exports){
|
|
(function (Buffer){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// NOTE: These type checking functions intentionally don't use `instanceof`
|
|
// because it is fragile and can be easily faked with `Object.create()`.
|
|
|
|
function isArray(arg) {
|
|
if (Array.isArray) {
|
|
return Array.isArray(arg);
|
|
}
|
|
return objectToString(arg) === '[object Array]';
|
|
}
|
|
exports.isArray = isArray;
|
|
|
|
function isBoolean(arg) {
|
|
return typeof arg === 'boolean';
|
|
}
|
|
exports.isBoolean = isBoolean;
|
|
|
|
function isNull(arg) {
|
|
return arg === null;
|
|
}
|
|
exports.isNull = isNull;
|
|
|
|
function isNullOrUndefined(arg) {
|
|
return arg == null;
|
|
}
|
|
exports.isNullOrUndefined = isNullOrUndefined;
|
|
|
|
function isNumber(arg) {
|
|
return typeof arg === 'number';
|
|
}
|
|
exports.isNumber = isNumber;
|
|
|
|
function isString(arg) {
|
|
return typeof arg === 'string';
|
|
}
|
|
exports.isString = isString;
|
|
|
|
function isSymbol(arg) {
|
|
return typeof arg === 'symbol';
|
|
}
|
|
exports.isSymbol = isSymbol;
|
|
|
|
function isUndefined(arg) {
|
|
return arg === void 0;
|
|
}
|
|
exports.isUndefined = isUndefined;
|
|
|
|
function isRegExp(re) {
|
|
return objectToString(re) === '[object RegExp]';
|
|
}
|
|
exports.isRegExp = isRegExp;
|
|
|
|
function isObject(arg) {
|
|
return typeof arg === 'object' && arg !== null;
|
|
}
|
|
exports.isObject = isObject;
|
|
|
|
function isDate(d) {
|
|
return objectToString(d) === '[object Date]';
|
|
}
|
|
exports.isDate = isDate;
|
|
|
|
function isError(e) {
|
|
return (objectToString(e) === '[object Error]' || e instanceof Error);
|
|
}
|
|
exports.isError = isError;
|
|
|
|
function isFunction(arg) {
|
|
return typeof arg === 'function';
|
|
}
|
|
exports.isFunction = isFunction;
|
|
|
|
function isPrimitive(arg) {
|
|
return arg === null ||
|
|
typeof arg === 'boolean' ||
|
|
typeof arg === 'number' ||
|
|
typeof arg === 'string' ||
|
|
typeof arg === 'symbol' || // ES6 symbol
|
|
typeof arg === 'undefined';
|
|
}
|
|
exports.isPrimitive = isPrimitive;
|
|
|
|
exports.isBuffer = Buffer.isBuffer;
|
|
|
|
function objectToString(o) {
|
|
return Object.prototype.toString.call(o);
|
|
}
|
|
|
|
}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
|
|
|
|
},{"../../is-buffer/index.js":101}],51:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var elliptic = require('elliptic')
|
|
var BN = require('bn.js')
|
|
|
|
module.exports = function createECDH (curve) {
|
|
return new ECDH(curve)
|
|
}
|
|
|
|
var aliases = {
|
|
secp256k1: {
|
|
name: 'secp256k1',
|
|
byteLength: 32
|
|
},
|
|
secp224r1: {
|
|
name: 'p224',
|
|
byteLength: 28
|
|
},
|
|
prime256v1: {
|
|
name: 'p256',
|
|
byteLength: 32
|
|
},
|
|
prime192v1: {
|
|
name: 'p192',
|
|
byteLength: 24
|
|
},
|
|
ed25519: {
|
|
name: 'ed25519',
|
|
byteLength: 32
|
|
},
|
|
secp384r1: {
|
|
name: 'p384',
|
|
byteLength: 48
|
|
},
|
|
secp521r1: {
|
|
name: 'p521',
|
|
byteLength: 66
|
|
}
|
|
}
|
|
|
|
aliases.p224 = aliases.secp224r1
|
|
aliases.p256 = aliases.secp256r1 = aliases.prime256v1
|
|
aliases.p192 = aliases.secp192r1 = aliases.prime192v1
|
|
aliases.p384 = aliases.secp384r1
|
|
aliases.p521 = aliases.secp521r1
|
|
|
|
function ECDH (curve) {
|
|
this.curveType = aliases[curve]
|
|
if (!this.curveType) {
|
|
this.curveType = {
|
|
name: curve
|
|
}
|
|
}
|
|
this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap
|
|
this.keys = void 0
|
|
}
|
|
|
|
ECDH.prototype.generateKeys = function (enc, format) {
|
|
this.keys = this.curve.genKeyPair()
|
|
return this.getPublicKey(enc, format)
|
|
}
|
|
|
|
ECDH.prototype.computeSecret = function (other, inenc, enc) {
|
|
inenc = inenc || 'utf8'
|
|
if (!Buffer.isBuffer(other)) {
|
|
other = new Buffer(other, inenc)
|
|
}
|
|
var otherPub = this.curve.keyFromPublic(other).getPublic()
|
|
var out = otherPub.mul(this.keys.getPrivate()).getX()
|
|
return formatReturnValue(out, enc, this.curveType.byteLength)
|
|
}
|
|
|
|
ECDH.prototype.getPublicKey = function (enc, format) {
|
|
var key = this.keys.getPublic(format === 'compressed', true)
|
|
if (format === 'hybrid') {
|
|
if (key[key.length - 1] % 2) {
|
|
key[0] = 7
|
|
} else {
|
|
key[0] = 6
|
|
}
|
|
}
|
|
return formatReturnValue(key, enc)
|
|
}
|
|
|
|
ECDH.prototype.getPrivateKey = function (enc) {
|
|
return formatReturnValue(this.keys.getPrivate(), enc)
|
|
}
|
|
|
|
ECDH.prototype.setPublicKey = function (pub, enc) {
|
|
enc = enc || 'utf8'
|
|
if (!Buffer.isBuffer(pub)) {
|
|
pub = new Buffer(pub, enc)
|
|
}
|
|
this.keys._importPublic(pub)
|
|
return this
|
|
}
|
|
|
|
ECDH.prototype.setPrivateKey = function (priv, enc) {
|
|
enc = enc || 'utf8'
|
|
if (!Buffer.isBuffer(priv)) {
|
|
priv = new Buffer(priv, enc)
|
|
}
|
|
|
|
var _priv = new BN(priv)
|
|
_priv = _priv.toString(16)
|
|
this.keys = this.curve.genKeyPair()
|
|
this.keys._importPrivate(_priv)
|
|
return this
|
|
}
|
|
|
|
function formatReturnValue (bn, enc, len) {
|
|
if (!Array.isArray(bn)) {
|
|
bn = bn.toArray()
|
|
}
|
|
var buf = new Buffer(bn)
|
|
if (len && buf.length < len) {
|
|
var zeros = new Buffer(len - buf.length)
|
|
zeros.fill(0)
|
|
buf = Buffer.concat([zeros, buf])
|
|
}
|
|
if (!enc) {
|
|
return buf
|
|
} else {
|
|
return buf.toString(enc)
|
|
}
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"bn.js":16,"buffer":48,"elliptic":67}],52:[function(require,module,exports){
|
|
'use strict'
|
|
var inherits = require('inherits')
|
|
var MD5 = require('md5.js')
|
|
var RIPEMD160 = require('ripemd160')
|
|
var sha = require('sha.js')
|
|
var Base = require('cipher-base')
|
|
|
|
function Hash (hash) {
|
|
Base.call(this, 'digest')
|
|
|
|
this._hash = hash
|
|
}
|
|
|
|
inherits(Hash, Base)
|
|
|
|
Hash.prototype._update = function (data) {
|
|
this._hash.update(data)
|
|
}
|
|
|
|
Hash.prototype._final = function () {
|
|
return this._hash.digest()
|
|
}
|
|
|
|
module.exports = function createHash (alg) {
|
|
alg = alg.toLowerCase()
|
|
if (alg === 'md5') return new MD5()
|
|
if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160()
|
|
|
|
return new Hash(sha(alg))
|
|
}
|
|
|
|
},{"cipher-base":49,"inherits":100,"md5.js":102,"ripemd160":143,"sha.js":146}],53:[function(require,module,exports){
|
|
var MD5 = require('md5.js')
|
|
|
|
module.exports = function (buffer) {
|
|
return new MD5().update(buffer).digest()
|
|
}
|
|
|
|
},{"md5.js":102}],54:[function(require,module,exports){
|
|
'use strict'
|
|
var inherits = require('inherits')
|
|
var Legacy = require('./legacy')
|
|
var Base = require('cipher-base')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var md5 = require('create-hash/md5')
|
|
var RIPEMD160 = require('ripemd160')
|
|
|
|
var sha = require('sha.js')
|
|
|
|
var ZEROS = Buffer.alloc(128)
|
|
|
|
function Hmac (alg, key) {
|
|
Base.call(this, 'digest')
|
|
if (typeof key === 'string') {
|
|
key = Buffer.from(key)
|
|
}
|
|
|
|
var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
|
|
|
|
this._alg = alg
|
|
this._key = key
|
|
if (key.length > blocksize) {
|
|
var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
|
|
key = hash.update(key).digest()
|
|
} else if (key.length < blocksize) {
|
|
key = Buffer.concat([key, ZEROS], blocksize)
|
|
}
|
|
|
|
var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
|
|
var opad = this._opad = Buffer.allocUnsafe(blocksize)
|
|
|
|
for (var i = 0; i < blocksize; i++) {
|
|
ipad[i] = key[i] ^ 0x36
|
|
opad[i] = key[i] ^ 0x5C
|
|
}
|
|
this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
|
|
this._hash.update(ipad)
|
|
}
|
|
|
|
inherits(Hmac, Base)
|
|
|
|
Hmac.prototype._update = function (data) {
|
|
this._hash.update(data)
|
|
}
|
|
|
|
Hmac.prototype._final = function () {
|
|
var h = this._hash.digest()
|
|
var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)
|
|
return hash.update(this._opad).update(h).digest()
|
|
}
|
|
|
|
module.exports = function createHmac (alg, key) {
|
|
alg = alg.toLowerCase()
|
|
if (alg === 'rmd160' || alg === 'ripemd160') {
|
|
return new Hmac('rmd160', key)
|
|
}
|
|
if (alg === 'md5') {
|
|
return new Legacy(md5, key)
|
|
}
|
|
return new Hmac(alg, key)
|
|
}
|
|
|
|
},{"./legacy":55,"cipher-base":49,"create-hash/md5":53,"inherits":100,"ripemd160":143,"safe-buffer":144,"sha.js":146}],55:[function(require,module,exports){
|
|
'use strict'
|
|
var inherits = require('inherits')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var Base = require('cipher-base')
|
|
|
|
var ZEROS = Buffer.alloc(128)
|
|
var blocksize = 64
|
|
|
|
function Hmac (alg, key) {
|
|
Base.call(this, 'digest')
|
|
if (typeof key === 'string') {
|
|
key = Buffer.from(key)
|
|
}
|
|
|
|
this._alg = alg
|
|
this._key = key
|
|
|
|
if (key.length > blocksize) {
|
|
key = alg(key)
|
|
} else if (key.length < blocksize) {
|
|
key = Buffer.concat([key, ZEROS], blocksize)
|
|
}
|
|
|
|
var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
|
|
var opad = this._opad = Buffer.allocUnsafe(blocksize)
|
|
|
|
for (var i = 0; i < blocksize; i++) {
|
|
ipad[i] = key[i] ^ 0x36
|
|
opad[i] = key[i] ^ 0x5C
|
|
}
|
|
|
|
this._hash = [ipad]
|
|
}
|
|
|
|
inherits(Hmac, Base)
|
|
|
|
Hmac.prototype._update = function (data) {
|
|
this._hash.push(data)
|
|
}
|
|
|
|
Hmac.prototype._final = function () {
|
|
var h = this._alg(Buffer.concat(this._hash))
|
|
return this._alg(Buffer.concat([this._opad, h]))
|
|
}
|
|
module.exports = Hmac
|
|
|
|
},{"cipher-base":49,"inherits":100,"safe-buffer":144}],56:[function(require,module,exports){
|
|
'use strict'
|
|
|
|
exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes')
|
|
exports.createHash = exports.Hash = require('create-hash')
|
|
exports.createHmac = exports.Hmac = require('create-hmac')
|
|
|
|
var algos = require('browserify-sign/algos')
|
|
var algoKeys = Object.keys(algos)
|
|
var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys)
|
|
exports.getHashes = function () {
|
|
return hashes
|
|
}
|
|
|
|
var p = require('pbkdf2')
|
|
exports.pbkdf2 = p.pbkdf2
|
|
exports.pbkdf2Sync = p.pbkdf2Sync
|
|
|
|
var aes = require('browserify-cipher')
|
|
|
|
exports.Cipher = aes.Cipher
|
|
exports.createCipher = aes.createCipher
|
|
exports.Cipheriv = aes.Cipheriv
|
|
exports.createCipheriv = aes.createCipheriv
|
|
exports.Decipher = aes.Decipher
|
|
exports.createDecipher = aes.createDecipher
|
|
exports.Decipheriv = aes.Decipheriv
|
|
exports.createDecipheriv = aes.createDecipheriv
|
|
exports.getCiphers = aes.getCiphers
|
|
exports.listCiphers = aes.listCiphers
|
|
|
|
var dh = require('diffie-hellman')
|
|
|
|
exports.DiffieHellmanGroup = dh.DiffieHellmanGroup
|
|
exports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup
|
|
exports.getDiffieHellman = dh.getDiffieHellman
|
|
exports.createDiffieHellman = dh.createDiffieHellman
|
|
exports.DiffieHellman = dh.DiffieHellman
|
|
|
|
var sign = require('browserify-sign')
|
|
|
|
exports.createSign = sign.createSign
|
|
exports.Sign = sign.Sign
|
|
exports.createVerify = sign.createVerify
|
|
exports.Verify = sign.Verify
|
|
|
|
exports.createECDH = require('create-ecdh')
|
|
|
|
var publicEncrypt = require('public-encrypt')
|
|
|
|
exports.publicEncrypt = publicEncrypt.publicEncrypt
|
|
exports.privateEncrypt = publicEncrypt.privateEncrypt
|
|
exports.publicDecrypt = publicEncrypt.publicDecrypt
|
|
exports.privateDecrypt = publicEncrypt.privateDecrypt
|
|
|
|
// the least I can do is make error messages for the rest of the node.js/crypto api.
|
|
// ;[
|
|
// 'createCredentials'
|
|
// ].forEach(function (name) {
|
|
// exports[name] = function () {
|
|
// throw new Error([
|
|
// 'sorry, ' + name + ' is not implemented yet',
|
|
// 'we accept pull requests',
|
|
// 'https://github.com/crypto-browserify/crypto-browserify'
|
|
// ].join('\n'))
|
|
// }
|
|
// })
|
|
|
|
var rf = require('randomfill')
|
|
|
|
exports.randomFill = rf.randomFill
|
|
exports.randomFillSync = rf.randomFillSync
|
|
|
|
exports.createCredentials = function () {
|
|
throw new Error([
|
|
'sorry, createCredentials is not implemented yet',
|
|
'we accept pull requests',
|
|
'https://github.com/crypto-browserify/crypto-browserify'
|
|
].join('\n'))
|
|
}
|
|
|
|
exports.constants = {
|
|
'DH_CHECK_P_NOT_SAFE_PRIME': 2,
|
|
'DH_CHECK_P_NOT_PRIME': 1,
|
|
'DH_UNABLE_TO_CHECK_GENERATOR': 4,
|
|
'DH_NOT_SUITABLE_GENERATOR': 8,
|
|
'NPN_ENABLED': 1,
|
|
'ALPN_ENABLED': 1,
|
|
'RSA_PKCS1_PADDING': 1,
|
|
'RSA_SSLV23_PADDING': 2,
|
|
'RSA_NO_PADDING': 3,
|
|
'RSA_PKCS1_OAEP_PADDING': 4,
|
|
'RSA_X931_PADDING': 5,
|
|
'RSA_PKCS1_PSS_PADDING': 6,
|
|
'POINT_CONVERSION_COMPRESSED': 2,
|
|
'POINT_CONVERSION_UNCOMPRESSED': 4,
|
|
'POINT_CONVERSION_HYBRID': 6
|
|
}
|
|
|
|
},{"browserify-cipher":36,"browserify-sign":43,"browserify-sign/algos":40,"create-ecdh":51,"create-hash":52,"create-hmac":54,"diffie-hellman":63,"pbkdf2":111,"public-encrypt":119,"randombytes":125,"randomfill":126}],57:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
exports.utils = require('./des/utils');
|
|
exports.Cipher = require('./des/cipher');
|
|
exports.DES = require('./des/des');
|
|
exports.CBC = require('./des/cbc');
|
|
exports.EDE = require('./des/ede');
|
|
|
|
},{"./des/cbc":58,"./des/cipher":59,"./des/des":60,"./des/ede":61,"./des/utils":62}],58:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var assert = require('minimalistic-assert');
|
|
var inherits = require('inherits');
|
|
|
|
var proto = {};
|
|
|
|
function CBCState(iv) {
|
|
assert.equal(iv.length, 8, 'Invalid IV length');
|
|
|
|
this.iv = new Array(8);
|
|
for (var i = 0; i < this.iv.length; i++)
|
|
this.iv[i] = iv[i];
|
|
}
|
|
|
|
function instantiate(Base) {
|
|
function CBC(options) {
|
|
Base.call(this, options);
|
|
this._cbcInit();
|
|
}
|
|
inherits(CBC, Base);
|
|
|
|
var keys = Object.keys(proto);
|
|
for (var i = 0; i < keys.length; i++) {
|
|
var key = keys[i];
|
|
CBC.prototype[key] = proto[key];
|
|
}
|
|
|
|
CBC.create = function create(options) {
|
|
return new CBC(options);
|
|
};
|
|
|
|
return CBC;
|
|
}
|
|
|
|
exports.instantiate = instantiate;
|
|
|
|
proto._cbcInit = function _cbcInit() {
|
|
var state = new CBCState(this.options.iv);
|
|
this._cbcState = state;
|
|
};
|
|
|
|
proto._update = function _update(inp, inOff, out, outOff) {
|
|
var state = this._cbcState;
|
|
var superProto = this.constructor.super_.prototype;
|
|
|
|
var iv = state.iv;
|
|
if (this.type === 'encrypt') {
|
|
for (var i = 0; i < this.blockSize; i++)
|
|
iv[i] ^= inp[inOff + i];
|
|
|
|
superProto._update.call(this, iv, 0, out, outOff);
|
|
|
|
for (var i = 0; i < this.blockSize; i++)
|
|
iv[i] = out[outOff + i];
|
|
} else {
|
|
superProto._update.call(this, inp, inOff, out, outOff);
|
|
|
|
for (var i = 0; i < this.blockSize; i++)
|
|
out[outOff + i] ^= iv[i];
|
|
|
|
for (var i = 0; i < this.blockSize; i++)
|
|
iv[i] = inp[inOff + i];
|
|
}
|
|
};
|
|
|
|
},{"inherits":100,"minimalistic-assert":104}],59:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var assert = require('minimalistic-assert');
|
|
|
|
function Cipher(options) {
|
|
this.options = options;
|
|
|
|
this.type = this.options.type;
|
|
this.blockSize = 8;
|
|
this._init();
|
|
|
|
this.buffer = new Array(this.blockSize);
|
|
this.bufferOff = 0;
|
|
}
|
|
module.exports = Cipher;
|
|
|
|
Cipher.prototype._init = function _init() {
|
|
// Might be overrided
|
|
};
|
|
|
|
Cipher.prototype.update = function update(data) {
|
|
if (data.length === 0)
|
|
return [];
|
|
|
|
if (this.type === 'decrypt')
|
|
return this._updateDecrypt(data);
|
|
else
|
|
return this._updateEncrypt(data);
|
|
};
|
|
|
|
Cipher.prototype._buffer = function _buffer(data, off) {
|
|
// Append data to buffer
|
|
var min = Math.min(this.buffer.length - this.bufferOff, data.length - off);
|
|
for (var i = 0; i < min; i++)
|
|
this.buffer[this.bufferOff + i] = data[off + i];
|
|
this.bufferOff += min;
|
|
|
|
// Shift next
|
|
return min;
|
|
};
|
|
|
|
Cipher.prototype._flushBuffer = function _flushBuffer(out, off) {
|
|
this._update(this.buffer, 0, out, off);
|
|
this.bufferOff = 0;
|
|
return this.blockSize;
|
|
};
|
|
|
|
Cipher.prototype._updateEncrypt = function _updateEncrypt(data) {
|
|
var inputOff = 0;
|
|
var outputOff = 0;
|
|
|
|
var count = ((this.bufferOff + data.length) / this.blockSize) | 0;
|
|
var out = new Array(count * this.blockSize);
|
|
|
|
if (this.bufferOff !== 0) {
|
|
inputOff += this._buffer(data, inputOff);
|
|
|
|
if (this.bufferOff === this.buffer.length)
|
|
outputOff += this._flushBuffer(out, outputOff);
|
|
}
|
|
|
|
// Write blocks
|
|
var max = data.length - ((data.length - inputOff) % this.blockSize);
|
|
for (; inputOff < max; inputOff += this.blockSize) {
|
|
this._update(data, inputOff, out, outputOff);
|
|
outputOff += this.blockSize;
|
|
}
|
|
|
|
// Queue rest
|
|
for (; inputOff < data.length; inputOff++, this.bufferOff++)
|
|
this.buffer[this.bufferOff] = data[inputOff];
|
|
|
|
return out;
|
|
};
|
|
|
|
Cipher.prototype._updateDecrypt = function _updateDecrypt(data) {
|
|
var inputOff = 0;
|
|
var outputOff = 0;
|
|
|
|
var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1;
|
|
var out = new Array(count * this.blockSize);
|
|
|
|
// TODO(indutny): optimize it, this is far from optimal
|
|
for (; count > 0; count--) {
|
|
inputOff += this._buffer(data, inputOff);
|
|
outputOff += this._flushBuffer(out, outputOff);
|
|
}
|
|
|
|
// Buffer rest of the input
|
|
inputOff += this._buffer(data, inputOff);
|
|
|
|
return out;
|
|
};
|
|
|
|
Cipher.prototype.final = function final(buffer) {
|
|
var first;
|
|
if (buffer)
|
|
first = this.update(buffer);
|
|
|
|
var last;
|
|
if (this.type === 'encrypt')
|
|
last = this._finalEncrypt();
|
|
else
|
|
last = this._finalDecrypt();
|
|
|
|
if (first)
|
|
return first.concat(last);
|
|
else
|
|
return last;
|
|
};
|
|
|
|
Cipher.prototype._pad = function _pad(buffer, off) {
|
|
if (off === 0)
|
|
return false;
|
|
|
|
while (off < buffer.length)
|
|
buffer[off++] = 0;
|
|
|
|
return true;
|
|
};
|
|
|
|
Cipher.prototype._finalEncrypt = function _finalEncrypt() {
|
|
if (!this._pad(this.buffer, this.bufferOff))
|
|
return [];
|
|
|
|
var out = new Array(this.blockSize);
|
|
this._update(this.buffer, 0, out, 0);
|
|
return out;
|
|
};
|
|
|
|
Cipher.prototype._unpad = function _unpad(buffer) {
|
|
return buffer;
|
|
};
|
|
|
|
Cipher.prototype._finalDecrypt = function _finalDecrypt() {
|
|
assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt');
|
|
var out = new Array(this.blockSize);
|
|
this._flushBuffer(out, 0);
|
|
|
|
return this._unpad(out);
|
|
};
|
|
|
|
},{"minimalistic-assert":104}],60:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var assert = require('minimalistic-assert');
|
|
var inherits = require('inherits');
|
|
|
|
var utils = require('./utils');
|
|
var Cipher = require('./cipher');
|
|
|
|
function DESState() {
|
|
this.tmp = new Array(2);
|
|
this.keys = null;
|
|
}
|
|
|
|
function DES(options) {
|
|
Cipher.call(this, options);
|
|
|
|
var state = new DESState();
|
|
this._desState = state;
|
|
|
|
this.deriveKeys(state, options.key);
|
|
}
|
|
inherits(DES, Cipher);
|
|
module.exports = DES;
|
|
|
|
DES.create = function create(options) {
|
|
return new DES(options);
|
|
};
|
|
|
|
var shiftTable = [
|
|
1, 1, 2, 2, 2, 2, 2, 2,
|
|
1, 2, 2, 2, 2, 2, 2, 1
|
|
];
|
|
|
|
DES.prototype.deriveKeys = function deriveKeys(state, key) {
|
|
state.keys = new Array(16 * 2);
|
|
|
|
assert.equal(key.length, this.blockSize, 'Invalid key length');
|
|
|
|
var kL = utils.readUInt32BE(key, 0);
|
|
var kR = utils.readUInt32BE(key, 4);
|
|
|
|
utils.pc1(kL, kR, state.tmp, 0);
|
|
kL = state.tmp[0];
|
|
kR = state.tmp[1];
|
|
for (var i = 0; i < state.keys.length; i += 2) {
|
|
var shift = shiftTable[i >>> 1];
|
|
kL = utils.r28shl(kL, shift);
|
|
kR = utils.r28shl(kR, shift);
|
|
utils.pc2(kL, kR, state.keys, i);
|
|
}
|
|
};
|
|
|
|
DES.prototype._update = function _update(inp, inOff, out, outOff) {
|
|
var state = this._desState;
|
|
|
|
var l = utils.readUInt32BE(inp, inOff);
|
|
var r = utils.readUInt32BE(inp, inOff + 4);
|
|
|
|
// Initial Permutation
|
|
utils.ip(l, r, state.tmp, 0);
|
|
l = state.tmp[0];
|
|
r = state.tmp[1];
|
|
|
|
if (this.type === 'encrypt')
|
|
this._encrypt(state, l, r, state.tmp, 0);
|
|
else
|
|
this._decrypt(state, l, r, state.tmp, 0);
|
|
|
|
l = state.tmp[0];
|
|
r = state.tmp[1];
|
|
|
|
utils.writeUInt32BE(out, l, outOff);
|
|
utils.writeUInt32BE(out, r, outOff + 4);
|
|
};
|
|
|
|
DES.prototype._pad = function _pad(buffer, off) {
|
|
var value = buffer.length - off;
|
|
for (var i = off; i < buffer.length; i++)
|
|
buffer[i] = value;
|
|
|
|
return true;
|
|
};
|
|
|
|
DES.prototype._unpad = function _unpad(buffer) {
|
|
var pad = buffer[buffer.length - 1];
|
|
for (var i = buffer.length - pad; i < buffer.length; i++)
|
|
assert.equal(buffer[i], pad);
|
|
|
|
return buffer.slice(0, buffer.length - pad);
|
|
};
|
|
|
|
DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) {
|
|
var l = lStart;
|
|
var r = rStart;
|
|
|
|
// Apply f() x16 times
|
|
for (var i = 0; i < state.keys.length; i += 2) {
|
|
var keyL = state.keys[i];
|
|
var keyR = state.keys[i + 1];
|
|
|
|
// f(r, k)
|
|
utils.expand(r, state.tmp, 0);
|
|
|
|
keyL ^= state.tmp[0];
|
|
keyR ^= state.tmp[1];
|
|
var s = utils.substitute(keyL, keyR);
|
|
var f = utils.permute(s);
|
|
|
|
var t = r;
|
|
r = (l ^ f) >>> 0;
|
|
l = t;
|
|
}
|
|
|
|
// Reverse Initial Permutation
|
|
utils.rip(r, l, out, off);
|
|
};
|
|
|
|
DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) {
|
|
var l = rStart;
|
|
var r = lStart;
|
|
|
|
// Apply f() x16 times
|
|
for (var i = state.keys.length - 2; i >= 0; i -= 2) {
|
|
var keyL = state.keys[i];
|
|
var keyR = state.keys[i + 1];
|
|
|
|
// f(r, k)
|
|
utils.expand(l, state.tmp, 0);
|
|
|
|
keyL ^= state.tmp[0];
|
|
keyR ^= state.tmp[1];
|
|
var s = utils.substitute(keyL, keyR);
|
|
var f = utils.permute(s);
|
|
|
|
var t = l;
|
|
l = (r ^ f) >>> 0;
|
|
r = t;
|
|
}
|
|
|
|
// Reverse Initial Permutation
|
|
utils.rip(l, r, out, off);
|
|
};
|
|
|
|
},{"./cipher":59,"./utils":62,"inherits":100,"minimalistic-assert":104}],61:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var assert = require('minimalistic-assert');
|
|
var inherits = require('inherits');
|
|
|
|
var Cipher = require('./cipher');
|
|
var DES = require('./des');
|
|
|
|
function EDEState(type, key) {
|
|
assert.equal(key.length, 24, 'Invalid key length');
|
|
|
|
var k1 = key.slice(0, 8);
|
|
var k2 = key.slice(8, 16);
|
|
var k3 = key.slice(16, 24);
|
|
|
|
if (type === 'encrypt') {
|
|
this.ciphers = [
|
|
DES.create({ type: 'encrypt', key: k1 }),
|
|
DES.create({ type: 'decrypt', key: k2 }),
|
|
DES.create({ type: 'encrypt', key: k3 })
|
|
];
|
|
} else {
|
|
this.ciphers = [
|
|
DES.create({ type: 'decrypt', key: k3 }),
|
|
DES.create({ type: 'encrypt', key: k2 }),
|
|
DES.create({ type: 'decrypt', key: k1 })
|
|
];
|
|
}
|
|
}
|
|
|
|
function EDE(options) {
|
|
Cipher.call(this, options);
|
|
|
|
var state = new EDEState(this.type, this.options.key);
|
|
this._edeState = state;
|
|
}
|
|
inherits(EDE, Cipher);
|
|
|
|
module.exports = EDE;
|
|
|
|
EDE.create = function create(options) {
|
|
return new EDE(options);
|
|
};
|
|
|
|
EDE.prototype._update = function _update(inp, inOff, out, outOff) {
|
|
var state = this._edeState;
|
|
|
|
state.ciphers[0]._update(inp, inOff, out, outOff);
|
|
state.ciphers[1]._update(out, outOff, out, outOff);
|
|
state.ciphers[2]._update(out, outOff, out, outOff);
|
|
};
|
|
|
|
EDE.prototype._pad = DES.prototype._pad;
|
|
EDE.prototype._unpad = DES.prototype._unpad;
|
|
|
|
},{"./cipher":59,"./des":60,"inherits":100,"minimalistic-assert":104}],62:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
exports.readUInt32BE = function readUInt32BE(bytes, off) {
|
|
var res = (bytes[0 + off] << 24) |
|
|
(bytes[1 + off] << 16) |
|
|
(bytes[2 + off] << 8) |
|
|
bytes[3 + off];
|
|
return res >>> 0;
|
|
};
|
|
|
|
exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) {
|
|
bytes[0 + off] = value >>> 24;
|
|
bytes[1 + off] = (value >>> 16) & 0xff;
|
|
bytes[2 + off] = (value >>> 8) & 0xff;
|
|
bytes[3 + off] = value & 0xff;
|
|
};
|
|
|
|
exports.ip = function ip(inL, inR, out, off) {
|
|
var outL = 0;
|
|
var outR = 0;
|
|
|
|
for (var i = 6; i >= 0; i -= 2) {
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outL <<= 1;
|
|
outL |= (inR >>> (j + i)) & 1;
|
|
}
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outL <<= 1;
|
|
outL |= (inL >>> (j + i)) & 1;
|
|
}
|
|
}
|
|
|
|
for (var i = 6; i >= 0; i -= 2) {
|
|
for (var j = 1; j <= 25; j += 8) {
|
|
outR <<= 1;
|
|
outR |= (inR >>> (j + i)) & 1;
|
|
}
|
|
for (var j = 1; j <= 25; j += 8) {
|
|
outR <<= 1;
|
|
outR |= (inL >>> (j + i)) & 1;
|
|
}
|
|
}
|
|
|
|
out[off + 0] = outL >>> 0;
|
|
out[off + 1] = outR >>> 0;
|
|
};
|
|
|
|
exports.rip = function rip(inL, inR, out, off) {
|
|
var outL = 0;
|
|
var outR = 0;
|
|
|
|
for (var i = 0; i < 4; i++) {
|
|
for (var j = 24; j >= 0; j -= 8) {
|
|
outL <<= 1;
|
|
outL |= (inR >>> (j + i)) & 1;
|
|
outL <<= 1;
|
|
outL |= (inL >>> (j + i)) & 1;
|
|
}
|
|
}
|
|
for (var i = 4; i < 8; i++) {
|
|
for (var j = 24; j >= 0; j -= 8) {
|
|
outR <<= 1;
|
|
outR |= (inR >>> (j + i)) & 1;
|
|
outR <<= 1;
|
|
outR |= (inL >>> (j + i)) & 1;
|
|
}
|
|
}
|
|
|
|
out[off + 0] = outL >>> 0;
|
|
out[off + 1] = outR >>> 0;
|
|
};
|
|
|
|
exports.pc1 = function pc1(inL, inR, out, off) {
|
|
var outL = 0;
|
|
var outR = 0;
|
|
|
|
// 7, 15, 23, 31, 39, 47, 55, 63
|
|
// 6, 14, 22, 30, 39, 47, 55, 63
|
|
// 5, 13, 21, 29, 39, 47, 55, 63
|
|
// 4, 12, 20, 28
|
|
for (var i = 7; i >= 5; i--) {
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outL <<= 1;
|
|
outL |= (inR >> (j + i)) & 1;
|
|
}
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outL <<= 1;
|
|
outL |= (inL >> (j + i)) & 1;
|
|
}
|
|
}
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outL <<= 1;
|
|
outL |= (inR >> (j + i)) & 1;
|
|
}
|
|
|
|
// 1, 9, 17, 25, 33, 41, 49, 57
|
|
// 2, 10, 18, 26, 34, 42, 50, 58
|
|
// 3, 11, 19, 27, 35, 43, 51, 59
|
|
// 36, 44, 52, 60
|
|
for (var i = 1; i <= 3; i++) {
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outR <<= 1;
|
|
outR |= (inR >> (j + i)) & 1;
|
|
}
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outR <<= 1;
|
|
outR |= (inL >> (j + i)) & 1;
|
|
}
|
|
}
|
|
for (var j = 0; j <= 24; j += 8) {
|
|
outR <<= 1;
|
|
outR |= (inL >> (j + i)) & 1;
|
|
}
|
|
|
|
out[off + 0] = outL >>> 0;
|
|
out[off + 1] = outR >>> 0;
|
|
};
|
|
|
|
exports.r28shl = function r28shl(num, shift) {
|
|
return ((num << shift) & 0xfffffff) | (num >>> (28 - shift));
|
|
};
|
|
|
|
var pc2table = [
|
|
// inL => outL
|
|
14, 11, 17, 4, 27, 23, 25, 0,
|
|
13, 22, 7, 18, 5, 9, 16, 24,
|
|
2, 20, 12, 21, 1, 8, 15, 26,
|
|
|
|
// inR => outR
|
|
15, 4, 25, 19, 9, 1, 26, 16,
|
|
5, 11, 23, 8, 12, 7, 17, 0,
|
|
22, 3, 10, 14, 6, 20, 27, 24
|
|
];
|
|
|
|
exports.pc2 = function pc2(inL, inR, out, off) {
|
|
var outL = 0;
|
|
var outR = 0;
|
|
|
|
var len = pc2table.length >>> 1;
|
|
for (var i = 0; i < len; i++) {
|
|
outL <<= 1;
|
|
outL |= (inL >>> pc2table[i]) & 0x1;
|
|
}
|
|
for (var i = len; i < pc2table.length; i++) {
|
|
outR <<= 1;
|
|
outR |= (inR >>> pc2table[i]) & 0x1;
|
|
}
|
|
|
|
out[off + 0] = outL >>> 0;
|
|
out[off + 1] = outR >>> 0;
|
|
};
|
|
|
|
exports.expand = function expand(r, out, off) {
|
|
var outL = 0;
|
|
var outR = 0;
|
|
|
|
outL = ((r & 1) << 5) | (r >>> 27);
|
|
for (var i = 23; i >= 15; i -= 4) {
|
|
outL <<= 6;
|
|
outL |= (r >>> i) & 0x3f;
|
|
}
|
|
for (var i = 11; i >= 3; i -= 4) {
|
|
outR |= (r >>> i) & 0x3f;
|
|
outR <<= 6;
|
|
}
|
|
outR |= ((r & 0x1f) << 1) | (r >>> 31);
|
|
|
|
out[off + 0] = outL >>> 0;
|
|
out[off + 1] = outR >>> 0;
|
|
};
|
|
|
|
var sTable = [
|
|
14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
|
|
3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
|
|
4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
|
|
15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13,
|
|
|
|
15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
|
|
9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
|
|
0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
|
|
5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9,
|
|
|
|
10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
|
|
1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
|
|
13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
|
|
11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12,
|
|
|
|
7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
|
|
1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
|
|
10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
|
|
15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14,
|
|
|
|
2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
|
|
8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
|
|
4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
|
|
15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3,
|
|
|
|
12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
|
|
0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
|
|
9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
|
|
7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13,
|
|
|
|
4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
|
|
3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
|
|
1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
|
|
10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12,
|
|
|
|
13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
|
|
10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
|
|
7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
|
|
0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
|
|
];
|
|
|
|
exports.substitute = function substitute(inL, inR) {
|
|
var out = 0;
|
|
for (var i = 0; i < 4; i++) {
|
|
var b = (inL >>> (18 - i * 6)) & 0x3f;
|
|
var sb = sTable[i * 0x40 + b];
|
|
|
|
out <<= 4;
|
|
out |= sb;
|
|
}
|
|
for (var i = 0; i < 4; i++) {
|
|
var b = (inR >>> (18 - i * 6)) & 0x3f;
|
|
var sb = sTable[4 * 0x40 + i * 0x40 + b];
|
|
|
|
out <<= 4;
|
|
out |= sb;
|
|
}
|
|
return out >>> 0;
|
|
};
|
|
|
|
var permuteTable = [
|
|
16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22,
|
|
30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7
|
|
];
|
|
|
|
exports.permute = function permute(num) {
|
|
var out = 0;
|
|
for (var i = 0; i < permuteTable.length; i++) {
|
|
out <<= 1;
|
|
out |= (num >>> permuteTable[i]) & 0x1;
|
|
}
|
|
return out >>> 0;
|
|
};
|
|
|
|
exports.padSplit = function padSplit(num, size, group) {
|
|
var str = num.toString(2);
|
|
while (str.length < size)
|
|
str = '0' + str;
|
|
|
|
var out = [];
|
|
for (var i = 0; i < size; i += group)
|
|
out.push(str.slice(i, i + group));
|
|
return out.join(' ');
|
|
};
|
|
|
|
},{}],63:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var generatePrime = require('./lib/generatePrime')
|
|
var primes = require('./lib/primes.json')
|
|
|
|
var DH = require('./lib/dh')
|
|
|
|
function getDiffieHellman (mod) {
|
|
var prime = new Buffer(primes[mod].prime, 'hex')
|
|
var gen = new Buffer(primes[mod].gen, 'hex')
|
|
|
|
return new DH(prime, gen)
|
|
}
|
|
|
|
var ENCODINGS = {
|
|
'binary': true, 'hex': true, 'base64': true
|
|
}
|
|
|
|
function createDiffieHellman (prime, enc, generator, genc) {
|
|
if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) {
|
|
return createDiffieHellman(prime, 'binary', enc, generator)
|
|
}
|
|
|
|
enc = enc || 'binary'
|
|
genc = genc || 'binary'
|
|
generator = generator || new Buffer([2])
|
|
|
|
if (!Buffer.isBuffer(generator)) {
|
|
generator = new Buffer(generator, genc)
|
|
}
|
|
|
|
if (typeof prime === 'number') {
|
|
return new DH(generatePrime(prime, generator), generator, true)
|
|
}
|
|
|
|
if (!Buffer.isBuffer(prime)) {
|
|
prime = new Buffer(prime, enc)
|
|
}
|
|
|
|
return new DH(prime, generator, true)
|
|
}
|
|
|
|
exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman
|
|
exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"./lib/dh":64,"./lib/generatePrime":65,"./lib/primes.json":66,"buffer":48}],64:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var BN = require('bn.js');
|
|
var MillerRabin = require('miller-rabin');
|
|
var millerRabin = new MillerRabin();
|
|
var TWENTYFOUR = new BN(24);
|
|
var ELEVEN = new BN(11);
|
|
var TEN = new BN(10);
|
|
var THREE = new BN(3);
|
|
var SEVEN = new BN(7);
|
|
var primes = require('./generatePrime');
|
|
var randomBytes = require('randombytes');
|
|
module.exports = DH;
|
|
|
|
function setPublicKey(pub, enc) {
|
|
enc = enc || 'utf8';
|
|
if (!Buffer.isBuffer(pub)) {
|
|
pub = new Buffer(pub, enc);
|
|
}
|
|
this._pub = new BN(pub);
|
|
return this;
|
|
}
|
|
|
|
function setPrivateKey(priv, enc) {
|
|
enc = enc || 'utf8';
|
|
if (!Buffer.isBuffer(priv)) {
|
|
priv = new Buffer(priv, enc);
|
|
}
|
|
this._priv = new BN(priv);
|
|
return this;
|
|
}
|
|
|
|
var primeCache = {};
|
|
function checkPrime(prime, generator) {
|
|
var gen = generator.toString('hex');
|
|
var hex = [gen, prime.toString(16)].join('_');
|
|
if (hex in primeCache) {
|
|
return primeCache[hex];
|
|
}
|
|
var error = 0;
|
|
|
|
if (prime.isEven() ||
|
|
!primes.simpleSieve ||
|
|
!primes.fermatTest(prime) ||
|
|
!millerRabin.test(prime)) {
|
|
//not a prime so +1
|
|
error += 1;
|
|
|
|
if (gen === '02' || gen === '05') {
|
|
// we'd be able to check the generator
|
|
// it would fail so +8
|
|
error += 8;
|
|
} else {
|
|
//we wouldn't be able to test the generator
|
|
// so +4
|
|
error += 4;
|
|
}
|
|
primeCache[hex] = error;
|
|
return error;
|
|
}
|
|
if (!millerRabin.test(prime.shrn(1))) {
|
|
//not a safe prime
|
|
error += 2;
|
|
}
|
|
var rem;
|
|
switch (gen) {
|
|
case '02':
|
|
if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) {
|
|
// unsuidable generator
|
|
error += 8;
|
|
}
|
|
break;
|
|
case '05':
|
|
rem = prime.mod(TEN);
|
|
if (rem.cmp(THREE) && rem.cmp(SEVEN)) {
|
|
// prime mod 10 needs to equal 3 or 7
|
|
error += 8;
|
|
}
|
|
break;
|
|
default:
|
|
error += 4;
|
|
}
|
|
primeCache[hex] = error;
|
|
return error;
|
|
}
|
|
|
|
function DH(prime, generator, malleable) {
|
|
this.setGenerator(generator);
|
|
this.__prime = new BN(prime);
|
|
this._prime = BN.mont(this.__prime);
|
|
this._primeLen = prime.length;
|
|
this._pub = undefined;
|
|
this._priv = undefined;
|
|
this._primeCode = undefined;
|
|
if (malleable) {
|
|
this.setPublicKey = setPublicKey;
|
|
this.setPrivateKey = setPrivateKey;
|
|
} else {
|
|
this._primeCode = 8;
|
|
}
|
|
}
|
|
Object.defineProperty(DH.prototype, 'verifyError', {
|
|
enumerable: true,
|
|
get: function () {
|
|
if (typeof this._primeCode !== 'number') {
|
|
this._primeCode = checkPrime(this.__prime, this.__gen);
|
|
}
|
|
return this._primeCode;
|
|
}
|
|
});
|
|
DH.prototype.generateKeys = function () {
|
|
if (!this._priv) {
|
|
this._priv = new BN(randomBytes(this._primeLen));
|
|
}
|
|
this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed();
|
|
return this.getPublicKey();
|
|
};
|
|
|
|
DH.prototype.computeSecret = function (other) {
|
|
other = new BN(other);
|
|
other = other.toRed(this._prime);
|
|
var secret = other.redPow(this._priv).fromRed();
|
|
var out = new Buffer(secret.toArray());
|
|
var prime = this.getPrime();
|
|
if (out.length < prime.length) {
|
|
var front = new Buffer(prime.length - out.length);
|
|
front.fill(0);
|
|
out = Buffer.concat([front, out]);
|
|
}
|
|
return out;
|
|
};
|
|
|
|
DH.prototype.getPublicKey = function getPublicKey(enc) {
|
|
return formatReturnValue(this._pub, enc);
|
|
};
|
|
|
|
DH.prototype.getPrivateKey = function getPrivateKey(enc) {
|
|
return formatReturnValue(this._priv, enc);
|
|
};
|
|
|
|
DH.prototype.getPrime = function (enc) {
|
|
return formatReturnValue(this.__prime, enc);
|
|
};
|
|
|
|
DH.prototype.getGenerator = function (enc) {
|
|
return formatReturnValue(this._gen, enc);
|
|
};
|
|
|
|
DH.prototype.setGenerator = function (gen, enc) {
|
|
enc = enc || 'utf8';
|
|
if (!Buffer.isBuffer(gen)) {
|
|
gen = new Buffer(gen, enc);
|
|
}
|
|
this.__gen = gen;
|
|
this._gen = new BN(gen);
|
|
return this;
|
|
};
|
|
|
|
function formatReturnValue(bn, enc) {
|
|
var buf = new Buffer(bn.toArray());
|
|
if (!enc) {
|
|
return buf;
|
|
} else {
|
|
return buf.toString(enc);
|
|
}
|
|
}
|
|
|
|
}).call(this,require("buffer").Buffer)
|
|
|
|
},{"./generatePrime":65,"bn.js":16,"buffer":48,"miller-rabin":103,"randombytes":125}],65:[function(require,module,exports){
|
|
var randomBytes = require('randombytes');
|
|
module.exports = findPrime;
|
|
findPrime.simpleSieve = simpleSieve;
|
|
findPrime.fermatTest = fermatTest;
|
|
var BN = require('bn.js');
|
|
var TWENTYFOUR = new BN(24);
|
|
var MillerRabin = require('miller-rabin');
|
|
var millerRabin = new MillerRabin();
|
|
var ONE = new BN(1);
|
|
var TWO = new BN(2);
|
|
var FIVE = new BN(5);
|
|
var SIXTEEN = new BN(16);
|
|
var EIGHT = new BN(8);
|
|
var TEN = new BN(10);
|
|
var THREE = new BN(3);
|
|
var SEVEN = new BN(7);
|
|
var ELEVEN = new BN(11);
|
|
var FOUR = new BN(4);
|
|
var TWELVE = new BN(12);
|
|
var primes = null;
|
|
|
|
function _getPrimes() {
|
|
if (primes !== null)
|
|
return primes;
|
|
|
|
var limit = 0x100000;
|
|
var res = [];
|
|
res[0] = 2;
|
|
for (var i = 1, k = 3; k < limit; k += 2) {
|
|
var sqrt = Math.ceil(Math.sqrt(k));
|
|
for (var j = 0; j < i && res[j] <= sqrt; j++)
|
|
if (k % res[j] === 0)
|
|
break;
|
|
|
|
if (i !== j && res[j] <= sqrt)
|
|
continue;
|
|
|
|
res[i++] = k;
|
|
}
|
|
primes = res;
|
|
return res;
|
|
}
|
|
|
|
function simpleSieve(p) {
|
|
var primes = _getPrimes();
|
|
|
|
for (var i = 0; i < primes.length; i++)
|
|
if (p.modn(primes[i]) === 0) {
|
|
if (p.cmpn(primes[i]) === 0) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function fermatTest(p) {
|
|
var red = BN.mont(p);
|
|
return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0;
|
|
}
|
|
|
|
function findPrime(bits, gen) {
|
|
if (bits < 16) {
|
|
// this is what openssl does
|
|
if (gen === 2 || gen === 5) {
|
|
return new BN([0x8c, 0x7b]);
|
|
} else {
|
|
return new BN([0x8c, 0x27]);
|
|
}
|
|
}
|
|
gen = new BN(gen);
|
|
|
|
var num, n2;
|
|
|
|
while (true) {
|
|
num = new BN(randomBytes(Math.ceil(bits / 8)));
|
|
while (num.bitLength() > bits) {
|
|
num.ishrn(1);
|
|
}
|
|
if (num.isEven()) {
|
|
num.iadd(ONE);
|
|
}
|
|
if (!num.testn(1)) {
|
|
num.iadd(TWO);
|
|
}
|
|
if (!gen.cmp(TWO)) {
|
|
while (num.mod(TWENTYFOUR).cmp(ELEVEN)) {
|
|
num.iadd(FOUR);
|
|
}
|
|
} else if (!gen.cmp(FIVE)) {
|
|
while (num.mod(TEN).cmp(THREE)) {
|
|
num.iadd(FOUR);
|
|
}
|
|
}
|
|
n2 = num.shrn(1);
|
|
if (simpleSieve(n2) && simpleSieve(num) &&
|
|
fermatTest(n2) && fermatTest(num) &&
|
|
millerRabin.test(n2) && millerRabin.test(num)) {
|
|
return num;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
},{"bn.js":16,"miller-rabin":103,"randombytes":125}],66:[function(require,module,exports){
|
|
module.exports={
|
|
"modp1": {
|
|
"gen": "02",
|
|
"prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff"
|
|
},
|
|
"modp2": {
|
|
"gen": "02",
|
|
"prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff"
|
|
},
|
|
"modp5": {
|
|
"gen": "02",
|
|
"prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff"
|
|
},
|
|
"modp14": {
|
|
"gen": "02",
|
|
"prime": "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"
|
|
},
|
|
"modp15": {
|
|
"gen": "02",
|
|
"prime": "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"
|
|
},
|
|
"modp16": {
|
|
"gen": "02",
|
|
"prime": "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"
|
|
},
|
|
"modp17": {
|
|
"gen": "02",
|
|
"prime": "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"
|
|
},
|
|
"modp18": {
|
|
"gen": "02",
|
|
"prime": "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"
|
|
}
|
|
}
|
|
},{}],67:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var elliptic = exports;
|
|
|
|
elliptic.version = require('../package.json').version;
|
|
elliptic.utils = require('./elliptic/utils');
|
|
elliptic.rand = require('brorand');
|
|
elliptic.curve = require('./elliptic/curve');
|
|
elliptic.curves = require('./elliptic/curves');
|
|
|
|
// Protocols
|
|
elliptic.ec = require('./elliptic/ec');
|
|
elliptic.eddsa = require('./elliptic/eddsa');
|
|
|
|
},{"../package.json":82,"./elliptic/curve":70,"./elliptic/curves":73,"./elliptic/ec":74,"./elliptic/eddsa":77,"./elliptic/utils":81,"brorand":17}],68:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var utils = require('../utils');
|
|
var getNAF = utils.getNAF;
|
|
var getJSF = utils.getJSF;
|
|
var assert = utils.assert;
|
|
|
|
function BaseCurve(type, conf) {
|
|
this.type = type;
|
|
this.p = new BN(conf.p, 16);
|
|
|
|
// Use Montgomery, when there is no fast reduction for the prime
|
|
this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p);
|
|
|
|
// Useful for many curves
|
|
this.zero = new BN(0).toRed(this.red);
|
|
this.one = new BN(1).toRed(this.red);
|
|
this.two = new BN(2).toRed(this.red);
|
|
|
|
// Curve configuration, optional
|
|
this.n = conf.n && new BN(conf.n, 16);
|
|
this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);
|
|
|
|
// Temporary arrays
|
|
this._wnafT1 = new Array(4);
|
|
this._wnafT2 = new Array(4);
|
|
this._wnafT3 = new Array(4);
|
|
this._wnafT4 = new Array(4);
|
|
|
|
this._bitLength = this.n ? this.n.bitLength() : 0;
|
|
|
|
// Generalized Greg Maxwell's trick
|
|
var adjustCount = this.n && this.p.div(this.n);
|
|
if (!adjustCount || adjustCount.cmpn(100) > 0) {
|
|
this.redN = null;
|
|
} else {
|
|
this._maxwellTrick = true;
|
|
this.redN = this.n.toRed(this.red);
|
|
}
|
|
}
|
|
module.exports = BaseCurve;
|
|
|
|
BaseCurve.prototype.point = function point() {
|
|
throw new Error('Not implemented');
|
|
};
|
|
|
|
BaseCurve.prototype.validate = function validate() {
|
|
throw new Error('Not implemented');
|
|
};
|
|
|
|
BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {
|
|
assert(p.precomputed);
|
|
var doubles = p._getDoubles();
|
|
|
|
var naf = getNAF(k, 1, this._bitLength);
|
|
var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);
|
|
I /= 3;
|
|
|
|
// Translate into more windowed form
|
|
var repr = [];
|
|
for (var j = 0; j < naf.length; j += doubles.step) {
|
|
var nafW = 0;
|
|
for (var k = j + doubles.step - 1; k >= j; k--)
|
|
nafW = (nafW << 1) + naf[k];
|
|
repr.push(nafW);
|
|
}
|
|
|
|
var a = this.jpoint(null, null, null);
|
|
var b = this.jpoint(null, null, null);
|
|
for (var i = I; i > 0; i--) {
|
|
for (var j = 0; j < repr.length; j++) {
|
|
var nafW = repr[j];
|
|
if (nafW === i)
|
|
b = b.mixedAdd(doubles.points[j]);
|
|
else if (nafW === -i)
|
|
b = b.mixedAdd(doubles.points[j].neg());
|
|
}
|
|
a = a.add(b);
|
|
}
|
|
return a.toP();
|
|
};
|
|
|
|
BaseCurve.prototype._wnafMul = function _wnafMul(p, k) {
|
|
var w = 4;
|
|
|
|
// Precompute window
|
|
var nafPoints = p._getNAFPoints(w);
|
|
w = nafPoints.wnd;
|
|
var wnd = nafPoints.points;
|
|
|
|
// Get NAF form
|
|
var naf = getNAF(k, w, this._bitLength);
|
|
|
|
// Add `this`*(N+1) for every w-NAF index
|
|
var acc = this.jpoint(null, null, null);
|
|
for (var i = naf.length - 1; i >= 0; i--) {
|
|
// Count zeroes
|
|
for (var k = 0; i >= 0 && naf[i] === 0; i--)
|
|
k++;
|
|
if (i >= 0)
|
|
k++;
|
|
acc = acc.dblp(k);
|
|
|
|
if (i < 0)
|
|
break;
|
|
var z = naf[i];
|
|
assert(z !== 0);
|
|
if (p.type === 'affine') {
|
|
// J +- P
|
|
if (z > 0)
|
|
acc = acc.mixedAdd(wnd[(z - 1) >> 1]);
|
|
else
|
|
acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());
|
|
} else {
|
|
// J +- J
|
|
if (z > 0)
|
|
acc = acc.add(wnd[(z - 1) >> 1]);
|
|
else
|
|
acc = acc.add(wnd[(-z - 1) >> 1].neg());
|
|
}
|
|
}
|
|
return p.type === 'affine' ? acc.toP() : acc;
|
|
};
|
|
|
|
BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,
|
|
points,
|
|
coeffs,
|
|
len,
|
|
jacobianResult) {
|
|
var wndWidth = this._wnafT1;
|
|
var wnd = this._wnafT2;
|
|
var naf = this._wnafT3;
|
|
|
|
// Fill all arrays
|
|
var max = 0;
|
|
for (var i = 0; i < len; i++) {
|
|
var p = points[i];
|
|
var nafPoints = p._getNAFPoints(defW);
|
|
wndWidth[i] = nafPoints.wnd;
|
|
wnd[i] = nafPoints.points;
|
|
}
|
|
|
|
// Comb small window NAFs
|
|
for (var i = len - 1; i >= 1; i -= 2) {
|
|
var a = i - 1;
|
|
var b = i;
|
|
if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {
|
|
naf[a] = getNAF(coeffs[a], wndWidth[a], this._bitLength);
|
|
naf[b] = getNAF(coeffs[b], wndWidth[b], this._bitLength);
|
|
max = Math.max(naf[a].length, max);
|
|
max = Math.max(naf[b].length, max);
|
|
continue;
|
|
}
|
|
|
|
var comb = [
|
|
points[a], /* 1 */
|
|
null, /* 3 */
|
|
null, /* 5 */
|
|
points[b] /* 7 */
|
|
];
|
|
|
|
// Try to avoid Projective points, if possible
|
|
if (points[a].y.cmp(points[b].y) === 0) {
|
|
comb[1] = points[a].add(points[b]);
|
|
comb[2] = points[a].toJ().mixedAdd(points[b].neg());
|
|
} else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {
|
|
comb[1] = points[a].toJ().mixedAdd(points[b]);
|
|
comb[2] = points[a].add(points[b].neg());
|
|
} else {
|
|
comb[1] = points[a].toJ().mixedAdd(points[b]);
|
|
comb[2] = points[a].toJ().mixedAdd(points[b].neg());
|
|
}
|
|
|
|
var index = [
|
|
-3, /* -1 -1 */
|
|
-1, /* -1 0 */
|
|
-5, /* -1 1 */
|
|
-7, /* 0 -1 */
|
|
0, /* 0 0 */
|
|
7, /* 0 1 */
|
|
5, /* 1 -1 */
|
|
1, /* 1 0 */
|
|
3 /* 1 1 */
|
|
];
|
|
|
|
var jsf = getJSF(coeffs[a], coeffs[b]);
|
|
max = Math.max(jsf[0].length, max);
|
|
naf[a] = new Array(max);
|
|
naf[b] = new Array(max);
|
|
for (var j = 0; j < max; j++) {
|
|
var ja = jsf[0][j] | 0;
|
|
var jb = jsf[1][j] | 0;
|
|
|
|
naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];
|
|
naf[b][j] = 0;
|
|
wnd[a] = comb;
|
|
}
|
|
}
|
|
|
|
var acc = this.jpoint(null, null, null);
|
|
var tmp = this._wnafT4;
|
|
for (var i = max; i >= 0; i--) {
|
|
var k = 0;
|
|
|
|
while (i >= 0) {
|
|
var zero = true;
|
|
for (var j = 0; j < len; j++) {
|
|
tmp[j] = naf[j][i] | 0;
|
|
if (tmp[j] !== 0)
|
|
zero = false;
|
|
}
|
|
if (!zero)
|
|
break;
|
|
k++;
|
|
i--;
|
|
}
|
|
if (i >= 0)
|
|
k++;
|
|
acc = acc.dblp(k);
|
|
if (i < 0)
|
|
break;
|
|
|
|
for (var j = 0; j < len; j++) {
|
|
var z = tmp[j];
|
|
var p;
|
|
if (z === 0)
|
|
continue;
|
|
else if (z > 0)
|
|
p = wnd[j][(z - 1) >> 1];
|
|
else if (z < 0)
|
|
p = wnd[j][(-z - 1) >> 1].neg();
|
|
|
|
if (p.type === 'affine')
|
|
acc = acc.mixedAdd(p);
|
|
else
|
|
acc = acc.add(p);
|
|
}
|
|
}
|
|
// Zeroify references
|
|
for (var i = 0; i < len; i++)
|
|
wnd[i] = null;
|
|
|
|
if (jacobianResult)
|
|
return acc;
|
|
else
|
|
return acc.toP();
|
|
};
|
|
|
|
function BasePoint(curve, type) {
|
|
this.curve = curve;
|
|
this.type = type;
|
|
this.precomputed = null;
|
|
}
|
|
BaseCurve.BasePoint = BasePoint;
|
|
|
|
BasePoint.prototype.eq = function eq(/*other*/) {
|
|
throw new Error('Not implemented');
|
|
};
|
|
|
|
BasePoint.prototype.validate = function validate() {
|
|
return this.curve.validate(this);
|
|
};
|
|
|
|
BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
|
|
bytes = utils.toArray(bytes, enc);
|
|
|
|
var len = this.p.byteLength();
|
|
|
|
// uncompressed, hybrid-odd, hybrid-even
|
|
if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) &&
|
|
bytes.length - 1 === 2 * len) {
|
|
if (bytes[0] === 0x06)
|
|
assert(bytes[bytes.length - 1] % 2 === 0);
|
|
else if (bytes[0] === 0x07)
|
|
assert(bytes[bytes.length - 1] % 2 === 1);
|
|
|
|
var res = this.point(bytes.slice(1, 1 + len),
|
|
bytes.slice(1 + len, 1 + 2 * len));
|
|
|
|
return res;
|
|
} else if ((bytes[0] === 0x02 || bytes[0] === 0x03) &&
|
|
bytes.length - 1 === len) {
|
|
return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03);
|
|
}
|
|
throw new Error('Unknown point format');
|
|
};
|
|
|
|
BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) {
|
|
return this.encode(enc, true);
|
|
};
|
|
|
|
BasePoint.prototype._encode = function _encode(compact) {
|
|
var len = this.curve.p.byteLength();
|
|
var x = this.getX().toArray('be', len);
|
|
|
|
if (compact)
|
|
return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x);
|
|
|
|
return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ;
|
|
};
|
|
|
|
BasePoint.prototype.encode = function encode(enc, compact) {
|
|
return utils.encode(this._encode(compact), enc);
|
|
};
|
|
|
|
BasePoint.prototype.precompute = function precompute(power) {
|
|
if (this.precomputed)
|
|
return this;
|
|
|
|
var precomputed = {
|
|
doubles: null,
|
|
naf: null,
|
|
beta: null
|
|
};
|
|
precomputed.naf = this._getNAFPoints(8);
|
|
precomputed.doubles = this._getDoubles(4, power);
|
|
precomputed.beta = this._getBeta();
|
|
this.precomputed = precomputed;
|
|
|
|
return this;
|
|
};
|
|
|
|
BasePoint.prototype._hasDoubles = function _hasDoubles(k) {
|
|
if (!this.precomputed)
|
|
return false;
|
|
|
|
var doubles = this.precomputed.doubles;
|
|
if (!doubles)
|
|
return false;
|
|
|
|
return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step);
|
|
};
|
|
|
|
BasePoint.prototype._getDoubles = function _getDoubles(step, power) {
|
|
if (this.precomputed && this.precomputed.doubles)
|
|
return this.precomputed.doubles;
|
|
|
|
var doubles = [ this ];
|
|
var acc = this;
|
|
for (var i = 0; i < power; i += step) {
|
|
for (var j = 0; j < step; j++)
|
|
acc = acc.dbl();
|
|
doubles.push(acc);
|
|
}
|
|
return {
|
|
step: step,
|
|
points: doubles
|
|
};
|
|
};
|
|
|
|
BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {
|
|
if (this.precomputed && this.precomputed.naf)
|
|
return this.precomputed.naf;
|
|
|
|
var res = [ this ];
|
|
var max = (1 << wnd) - 1;
|
|
var dbl = max === 1 ? null : this.dbl();
|
|
for (var i = 1; i < max; i++)
|
|
res[i] = res[i - 1].add(dbl);
|
|
return {
|
|
wnd: wnd,
|
|
points: res
|
|
};
|
|
};
|
|
|
|
BasePoint.prototype._getBeta = function _getBeta() {
|
|
return null;
|
|
};
|
|
|
|
BasePoint.prototype.dblp = function dblp(k) {
|
|
var r = this;
|
|
for (var i = 0; i < k; i++)
|
|
r = r.dbl();
|
|
return r;
|
|
};
|
|
|
|
},{"../utils":81,"bn.js":16}],69:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var BN = require('bn.js');
|
|
var inherits = require('inherits');
|
|
var Base = require('./base');
|
|
|
|
var assert = utils.assert;
|
|
|
|
function EdwardsCurve(conf) {
|
|
// NOTE: Important as we are creating point in Base.call()
|
|
this.twisted = (conf.a | 0) !== 1;
|
|
this.mOneA = this.twisted && (conf.a | 0) === -1;
|
|
this.extended = this.mOneA;
|
|
|
|
Base.call(this, 'edwards', conf);
|
|
|
|
this.a = new BN(conf.a, 16).umod(this.red.m);
|
|
this.a = this.a.toRed(this.red);
|
|
this.c = new BN(conf.c, 16).toRed(this.red);
|
|
this.c2 = this.c.redSqr();
|
|
this.d = new BN(conf.d, 16).toRed(this.red);
|
|
this.dd = this.d.redAdd(this.d);
|
|
|
|
assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);
|
|
this.oneC = (conf.c | 0) === 1;
|
|
}
|
|
inherits(EdwardsCurve, Base);
|
|
module.exports = EdwardsCurve;
|
|
|
|
EdwardsCurve.prototype._mulA = function _mulA(num) {
|
|
if (this.mOneA)
|
|
return num.redNeg();
|
|
else
|
|
return this.a.redMul(num);
|
|
};
|
|
|
|
EdwardsCurve.prototype._mulC = function _mulC(num) {
|
|
if (this.oneC)
|
|
return num;
|
|
else
|
|
return this.c.redMul(num);
|
|
};
|
|
|
|
// Just for compatibility with Short curve
|
|
EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {
|
|
return this.point(x, y, z, t);
|
|
};
|
|
|
|
EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) {
|
|
x = new BN(x, 16);
|
|
if (!x.red)
|
|
x = x.toRed(this.red);
|
|
|
|
var x2 = x.redSqr();
|
|
var rhs = this.c2.redSub(this.a.redMul(x2));
|
|
var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));
|
|
|
|
var y2 = rhs.redMul(lhs.redInvm());
|
|
var y = y2.redSqrt();
|
|
if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
|
|
throw new Error('invalid point');
|
|
|
|
var isOdd = y.fromRed().isOdd();
|
|
if (odd && !isOdd || !odd && isOdd)
|
|
y = y.redNeg();
|
|
|
|
return this.point(x, y);
|
|
};
|
|
|
|
EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {
|
|
y = new BN(y, 16);
|
|
if (!y.red)
|
|
y = y.toRed(this.red);
|
|
|
|
// x^2 = (y^2 - c^2) / (c^2 d y^2 - a)
|
|
var y2 = y.redSqr();
|
|
var lhs = y2.redSub(this.c2);
|
|
var rhs = y2.redMul(this.d).redMul(this.c2).redSub(this.a);
|
|
var x2 = lhs.redMul(rhs.redInvm());
|
|
|
|
if (x2.cmp(this.zero) === 0) {
|
|
if (odd)
|
|
throw new Error('invalid point');
|
|
else
|
|
return this.point(this.zero, y);
|
|
}
|
|
|
|
var x = x2.redSqrt();
|
|
if (x.redSqr().redSub(x2).cmp(this.zero) !== 0)
|
|
throw new Error('invalid point');
|
|
|
|
if (x.fromRed().isOdd() !== odd)
|
|
x = x.redNeg();
|
|
|
|
return this.point(x, y);
|
|
};
|
|
|
|
EdwardsCurve.prototype.validate = function validate(point) {
|
|
if (point.isInfinity())
|
|
return true;
|
|
|
|
// Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)
|
|
point.normalize();
|
|
|
|
var x2 = point.x.redSqr();
|
|
var y2 = point.y.redSqr();
|
|
var lhs = x2.redMul(this.a).redAdd(y2);
|
|
var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));
|
|
|
|
return lhs.cmp(rhs) === 0;
|
|
};
|
|
|
|
function Point(curve, x, y, z, t) {
|
|
Base.BasePoint.call(this, curve, 'projective');
|
|
if (x === null && y === null && z === null) {
|
|
this.x = this.curve.zero;
|
|
this.y = this.curve.one;
|
|
this.z = this.curve.one;
|
|
this.t = this.curve.zero;
|
|
this.zOne = true;
|
|
} else {
|
|
this.x = new BN(x, 16);
|
|
this.y = new BN(y, 16);
|
|
this.z = z ? new BN(z, 16) : this.curve.one;
|
|
this.t = t && new BN(t, 16);
|
|
if (!this.x.red)
|
|
this.x = this.x.toRed(this.curve.red);
|
|
if (!this.y.red)
|
|
this.y = this.y.toRed(this.curve.red);
|
|
if (!this.z.red)
|
|
this.z = this.z.toRed(this.curve.red);
|
|
if (this.t && !this.t.red)
|
|
this.t = this.t.toRed(this.curve.red);
|
|
this.zOne = this.z === this.curve.one;
|
|
|
|
// Use extended coordinates
|
|
if (this.curve.extended && !this.t) {
|
|
this.t = this.x.redMul(this.y);
|
|
if (!this.zOne)
|
|
this.t = this.t.redMul(this.z.redInvm());
|
|
}
|
|
}
|
|
}
|
|
inherits(Point, Base.BasePoint);
|
|
|
|
EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
|
|
return Point.fromJSON(this, obj);
|
|
};
|
|
|
|
EdwardsCurve.prototype.point = function point(x, y, z, t) {
|
|
return new Point(this, x, y, z, t);
|
|
};
|
|
|
|
Point.fromJSON = function fromJSON(curve, obj) {
|
|
return new Point(curve, obj[0], obj[1], obj[2]);
|
|
};
|
|
|
|
Point.prototype.inspect = function inspect() {
|
|
if (this.isInfinity())
|
|
return '<EC Point Infinity>';
|
|
return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
|
|
' y: ' + this.y.fromRed().toString(16, 2) +
|
|
' z: ' + this.z.fromRed().toString(16, 2) + '>';
|
|
};
|
|
|
|
Point.prototype.isInfinity = function isInfinity() {
|
|
// XXX This code assumes that zero is always zero in red
|
|
return this.x.cmpn(0) === 0 &&
|
|
(this.y.cmp(this.z) === 0 ||
|
|
(this.zOne && this.y.cmp(this.curve.c) === 0));
|
|
};
|
|
|
|
Point.prototype._extDbl = function _extDbl() {
|
|
// hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
|
|
// #doubling-dbl-2008-hwcd
|
|
// 4M + 4S
|
|
|
|
// A = X1^2
|
|
var a = this.x.redSqr();
|
|
// B = Y1^2
|
|
var b = this.y.redSqr();
|
|
// C = 2 * Z1^2
|
|
var c = this.z.redSqr();
|
|
c = c.redIAdd(c);
|
|
// D = a * A
|
|
var d = this.curve._mulA(a);
|
|
// E = (X1 + Y1)^2 - A - B
|
|
var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);
|
|
// G = D + B
|
|
var g = d.redAdd(b);
|
|
// F = G - C
|
|
var f = g.redSub(c);
|
|
// H = D - B
|
|
var h = d.redSub(b);
|
|
// X3 = E * F
|
|
var nx = e.redMul(f);
|
|
// Y3 = G * H
|
|
var ny = g.redMul(h);
|
|
// T3 = E * H
|
|
var nt = e.redMul(h);
|
|
// Z3 = F * G
|
|
var nz = f.redMul(g);
|
|
return this.curve.point(nx, ny, nz, nt);
|
|
};
|
|
|
|
Point.prototype._projDbl = function _projDbl() {
|
|
// hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
|
|
// #doubling-dbl-2008-bbjlp
|
|
// #doubling-dbl-2007-bl
|
|
// and others
|
|
// Generally 3M + 4S or 2M + 4S
|
|
|
|
// B = (X1 + Y1)^2
|
|
var b = this.x.redAdd(this.y).redSqr();
|
|
// C = X1^2
|
|
var c = this.x.redSqr();
|
|
// D = Y1^2
|
|
var d = this.y.redSqr();
|
|
|
|
var nx;
|
|
var ny;
|
|
var nz;
|
|
if (this.curve.twisted) {
|
|
// E = a * C
|
|
var e = this.curve._mulA(c);
|
|
// F = E + D
|
|
var f = e.redAdd(d);
|
|
if (this.zOne) {
|
|
// X3 = (B - C - D) * (F - 2)
|
|
nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));
|
|
// Y3 = F * (E - D)
|
|
ny = f.redMul(e.redSub(d));
|
|
// Z3 = F^2 - 2 * F
|
|
nz = f.redSqr().redSub(f).redSub(f);
|
|
} else {
|
|
// H = Z1^2
|
|
var h = this.z.redSqr();
|
|
// J = F - 2 * H
|
|
var j = f.redSub(h).redISub(h);
|
|
// X3 = (B-C-D)*J
|
|
nx = b.redSub(c).redISub(d).redMul(j);
|
|
// Y3 = F * (E - D)
|
|
ny = f.redMul(e.redSub(d));
|
|
// Z3 = F * J
|
|
nz = f.redMul(j);
|
|
}
|
|
} else {
|
|
// E = C + D
|
|
var e = c.redAdd(d);
|
|
// H = (c * Z1)^2
|
|
var h = this.curve._mulC(this.z).redSqr();
|
|
// J = E - 2 * H
|
|
var j = e.redSub(h).redSub(h);
|
|
// X3 = c * (B - E) * J
|
|
nx = this.curve._mulC(b.redISub(e)).redMul(j);
|
|
// Y3 = c * E * (C - D)
|
|
ny = this.curve._mulC(e).redMul(c.redISub(d));
|
|
// Z3 = E * J
|
|
nz = e.redMul(j);
|
|
}
|
|
return this.curve.point(nx, ny, nz);
|
|
};
|
|
|
|
Point.prototype.dbl = function dbl() {
|
|
if (this.isInfinity())
|
|
return this;
|
|
|
|
// Double in extended coordinates
|
|
if (this.curve.extended)
|
|
return this._extDbl();
|
|
else
|
|
return this._projDbl();
|
|
};
|
|
|
|
Point.prototype._extAdd = function _extAdd(p) {
|
|
// hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
|
|
// #addition-add-2008-hwcd-3
|
|
// 8M
|
|
|
|
// A = (Y1 - X1) * (Y2 - X2)
|
|
var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));
|
|
// B = (Y1 + X1) * (Y2 + X2)
|
|
var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));
|
|
// C = T1 * k * T2
|
|
var c = this.t.redMul(this.curve.dd).redMul(p.t);
|
|
// D = Z1 * 2 * Z2
|
|
var d = this.z.redMul(p.z.redAdd(p.z));
|
|
// E = B - A
|
|
var e = b.redSub(a);
|
|
// F = D - C
|
|
var f = d.redSub(c);
|
|
// G = D + C
|
|
var g = d.redAdd(c);
|
|
// H = B + A
|
|
var h = b.redAdd(a);
|
|
// X3 = E * F
|
|
var nx = e.redMul(f);
|
|
// Y3 = G * H
|
|
var ny = g.redMul(h);
|
|
// T3 = E * H
|
|
var nt = e.redMul(h);
|
|
// Z3 = F * G
|
|
var nz = f.redMul(g);
|
|
return this.curve.point(nx, ny, nz, nt);
|
|
};
|
|
|
|
Point.prototype._projAdd = function _projAdd(p) {
|
|
// hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
|
|
// #addition-add-2008-bbjlp
|
|
// #addition-add-2007-bl
|
|
// 10M + 1S
|
|
|
|
// A = Z1 * Z2
|
|
var a = this.z.redMul(p.z);
|
|
// B = A^2
|
|
var b = a.redSqr();
|
|
// C = X1 * X2
|
|
var c = this.x.redMul(p.x);
|
|
// D = Y1 * Y2
|
|
var d = this.y.redMul(p.y);
|
|
// E = d * C * D
|
|
var e = this.curve.d.redMul(c).redMul(d);
|
|
// F = B - E
|
|
var f = b.redSub(e);
|
|
// G = B + E
|
|
var g = b.redAdd(e);
|
|
// X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)
|
|
var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);
|
|
var nx = a.redMul(f).redMul(tmp);
|
|
var ny;
|
|
var nz;
|
|
if (this.curve.twisted) {
|
|
// Y3 = A * G * (D - a * C)
|
|
ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));
|
|
// Z3 = F * G
|
|
nz = f.redMul(g);
|
|
} else {
|
|
// Y3 = A * G * (D - C)
|
|
ny = a.redMul(g).redMul(d.redSub(c));
|
|
// Z3 = c * F * G
|
|
nz = this.curve._mulC(f).redMul(g);
|
|
}
|
|
return this.curve.point(nx, ny, nz);
|
|
};
|
|
|
|
Point.prototype.add = function add(p) {
|
|
if (this.isInfinity())
|
|
return p;
|
|
if (p.isInfinity())
|
|
return this;
|
|
|
|
if (this.curve.extended)
|
|
return this._extAdd(p);
|
|
else
|
|
return this._projAdd(p);
|
|
};
|
|
|
|
Point.prototype.mul = function mul(k) {
|
|
if (this._hasDoubles(k))
|
|
return this.curve._fixedNafMul(this, k);
|
|
else
|
|
return this.curve._wnafMul(this, k);
|
|
};
|
|
|
|
Point.prototype.mulAdd = function mulAdd(k1, p, k2) {
|
|
return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false);
|
|
};
|
|
|
|
Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) {
|
|
return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true);
|
|
};
|
|
|
|
Point.prototype.normalize = function normalize() {
|
|
if (this.zOne)
|
|
return this;
|
|
|
|
// Normalize coordinates
|
|
var zi = this.z.redInvm();
|
|
this.x = this.x.redMul(zi);
|
|
this.y = this.y.redMul(zi);
|
|
if (this.t)
|
|
this.t = this.t.redMul(zi);
|
|
this.z = this.curve.one;
|
|
this.zOne = true;
|
|
return this;
|
|
};
|
|
|
|
Point.prototype.neg = function neg() {
|
|
return this.curve.point(this.x.redNeg(),
|
|
this.y,
|
|
this.z,
|
|
this.t && this.t.redNeg());
|
|
};
|
|
|
|
Point.prototype.getX = function getX() {
|
|
this.normalize();
|
|
return this.x.fromRed();
|
|
};
|
|
|
|
Point.prototype.getY = function getY() {
|
|
this.normalize();
|
|
return this.y.fromRed();
|
|
};
|
|
|
|
Point.prototype.eq = function eq(other) {
|
|
return this === other ||
|
|
this.getX().cmp(other.getX()) === 0 &&
|
|
this.getY().cmp(other.getY()) === 0;
|
|
};
|
|
|
|
Point.prototype.eqXToP = function eqXToP(x) {
|
|
var rx = x.toRed(this.curve.red).redMul(this.z);
|
|
if (this.x.cmp(rx) === 0)
|
|
return true;
|
|
|
|
var xc = x.clone();
|
|
var t = this.curve.redN.redMul(this.z);
|
|
for (;;) {
|
|
xc.iadd(this.curve.n);
|
|
if (xc.cmp(this.curve.p) >= 0)
|
|
return false;
|
|
|
|
rx.redIAdd(t);
|
|
if (this.x.cmp(rx) === 0)
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// Compatibility with BaseCurve
|
|
Point.prototype.toP = Point.prototype.normalize;
|
|
Point.prototype.mixedAdd = Point.prototype.add;
|
|
|
|
},{"../utils":81,"./base":68,"bn.js":16,"inherits":100}],70:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var curve = exports;
|
|
|
|
curve.base = require('./base');
|
|
curve.short = require('./short');
|
|
curve.mont = require('./mont');
|
|
curve.edwards = require('./edwards');
|
|
|
|
},{"./base":68,"./edwards":69,"./mont":71,"./short":72}],71:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var inherits = require('inherits');
|
|
var Base = require('./base');
|
|
|
|
var utils = require('../utils');
|
|
|
|
function MontCurve(conf) {
|
|
Base.call(this, 'mont', conf);
|
|
|
|
this.a = new BN(conf.a, 16).toRed(this.red);
|
|
this.b = new BN(conf.b, 16).toRed(this.red);
|
|
this.i4 = new BN(4).toRed(this.red).redInvm();
|
|
this.two = new BN(2).toRed(this.red);
|
|
this.a24 = this.i4.redMul(this.a.redAdd(this.two));
|
|
}
|
|
inherits(MontCurve, Base);
|
|
module.exports = MontCurve;
|
|
|
|
MontCurve.prototype.validate = function validate(point) {
|
|
var x = point.normalize().x;
|
|
var x2 = x.redSqr();
|
|
var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);
|
|
var y = rhs.redSqrt();
|
|
|
|
return y.redSqr().cmp(rhs) === 0;
|
|
};
|
|
|
|
function Point(curve, x, z) {
|
|
Base.BasePoint.call(this, curve, 'projective');
|
|
if (x === null && z === null) {
|
|
this.x = this.curve.one;
|
|
this.z = this.curve.zero;
|
|
} else {
|
|
this.x = new BN(x, 16);
|
|
this.z = new BN(z, 16);
|
|
if (!this.x.red)
|
|
this.x = this.x.toRed(this.curve.red);
|
|
if (!this.z.red)
|
|
this.z = this.z.toRed(this.curve.red);
|
|
}
|
|
}
|
|
inherits(Point, Base.BasePoint);
|
|
|
|
MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
|
|
return this.point(utils.toArray(bytes, enc), 1);
|
|
};
|
|
|
|
MontCurve.prototype.point = function point(x, z) {
|
|
return new Point(this, x, z);
|
|
};
|
|
|
|
MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
|
|
return Point.fromJSON(this, obj);
|
|
};
|
|
|
|
Point.prototype.precompute = function precompute() {
|
|
// No-op
|
|
};
|
|
|
|
Point.prototype._encode = function _encode() {
|
|
return this.getX().toArray('be', this.curve.p.byteLength());
|
|
};
|
|
|
|
Point.fromJSON = function fromJSON(curve, obj) {
|
|
return new Point(curve, obj[0], obj[1] || curve.one);
|
|
};
|
|
|
|
Point.prototype.inspect = function inspect() {
|
|
if (this.isInfinity())
|
|
return '<EC Point Infinity>';
|
|
return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
|
|
' z: ' + this.z.fromRed().toString(16, 2) + '>';
|
|
};
|
|
|
|
Point.prototype.isInfinity = function isInfinity() {
|
|
// XXX This code assumes that zero is always zero in red
|
|
return this.z.cmpn(0) === 0;
|
|
};
|
|
|
|
Point.prototype.dbl = function dbl() {
|
|
// http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3
|
|
// 2M + 2S + 4A
|
|
|
|
// A = X1 + Z1
|
|
var a = this.x.redAdd(this.z);
|
|
// AA = A^2
|
|
var aa = a.redSqr();
|
|
// B = X1 - Z1
|
|
var b = this.x.redSub(this.z);
|
|
// BB = B^2
|
|
var bb = b.redSqr();
|
|
// C = AA - BB
|
|
var c = aa.redSub(bb);
|
|
// X3 = AA * BB
|
|
var nx = aa.redMul(bb);
|
|
// Z3 = C * (BB + A24 * C)
|
|
var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));
|
|
return this.curve.point(nx, nz);
|
|
};
|
|
|
|
Point.prototype.add = function add() {
|
|
throw new Error('Not supported on Montgomery curve');
|
|
};
|
|
|
|
Point.prototype.diffAdd = function diffAdd(p, diff) {
|
|
// http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3
|
|
// 4M + 2S + 6A
|
|
|
|
// A = X2 + Z2
|
|
var a = this.x.redAdd(this.z);
|
|
// B = X2 - Z2
|
|
var b = this.x.redSub(this.z);
|
|
// C = X3 + Z3
|
|
var c = p.x.redAdd(p.z);
|
|
// D = X3 - Z3
|
|
var d = p.x.redSub(p.z);
|
|
// DA = D * A
|
|
var da = d.redMul(a);
|
|
// CB = C * B
|
|
var cb = c.redMul(b);
|
|
// X5 = Z1 * (DA + CB)^2
|
|
var nx = diff.z.redMul(da.redAdd(cb).redSqr());
|
|
// Z5 = X1 * (DA - CB)^2
|
|
var nz = diff.x.redMul(da.redISub(cb).redSqr());
|
|
return this.curve.point(nx, nz);
|
|
};
|
|
|
|
Point.prototype.mul = function mul(k) {
|
|
var t = k.clone();
|
|
var a = this; // (N / 2) * Q + Q
|
|
var b = this.curve.point(null, null); // (N / 2) * Q
|
|
var c = this; // Q
|
|
|
|
for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1))
|
|
bits.push(t.andln(1));
|
|
|
|
for (var i = bits.length - 1; i >= 0; i--) {
|
|
if (bits[i] === 0) {
|
|
// N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q
|
|
a = a.diffAdd(b, c);
|
|
// N * Q = 2 * ((N / 2) * Q + Q))
|
|
b = b.dbl();
|
|
} else {
|
|
// N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)
|
|
b = a.diffAdd(b, c);
|
|
// N * Q + Q = 2 * ((N / 2) * Q + Q)
|
|
a = a.dbl();
|
|
}
|
|
}
|
|
return b;
|
|
};
|
|
|
|
Point.prototype.mulAdd = function mulAdd() {
|
|
throw new Error('Not supported on Montgomery curve');
|
|
};
|
|
|
|
Point.prototype.jumlAdd = function jumlAdd() {
|
|
throw new Error('Not supported on Montgomery curve');
|
|
};
|
|
|
|
Point.prototype.eq = function eq(other) {
|
|
return this.getX().cmp(other.getX()) === 0;
|
|
};
|
|
|
|
Point.prototype.normalize = function normalize() {
|
|
this.x = this.x.redMul(this.z.redInvm());
|
|
this.z = this.curve.one;
|
|
return this;
|
|
};
|
|
|
|
Point.prototype.getX = function getX() {
|
|
// Normalize coordinates
|
|
this.normalize();
|
|
|
|
return this.x.fromRed();
|
|
};
|
|
|
|
},{"../utils":81,"./base":68,"bn.js":16,"inherits":100}],72:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var BN = require('bn.js');
|
|
var inherits = require('inherits');
|
|
var Base = require('./base');
|
|
|
|
var assert = utils.assert;
|
|
|
|
function ShortCurve(conf) {
|
|
Base.call(this, 'short', conf);
|
|
|
|
this.a = new BN(conf.a, 16).toRed(this.red);
|
|
this.b = new BN(conf.b, 16).toRed(this.red);
|
|
this.tinv = this.two.redInvm();
|
|
|
|
this.zeroA = this.a.fromRed().cmpn(0) === 0;
|
|
this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;
|
|
|
|
// If the curve is endomorphic, precalculate beta and lambda
|
|
this.endo = this._getEndomorphism(conf);
|
|
this._endoWnafT1 = new Array(4);
|
|
this._endoWnafT2 = new Array(4);
|
|
}
|
|
inherits(ShortCurve, Base);
|
|
module.exports = ShortCurve;
|
|
|
|
ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {
|
|
// No efficient endomorphism
|
|
if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)
|
|
return;
|
|
|
|
// Compute beta and lambda, that lambda * P = (beta * Px; Py)
|
|
var beta;
|
|
var lambda;
|
|
if (conf.beta) {
|
|
beta = new BN(conf.beta, 16).toRed(this.red);
|
|
} else {
|
|
var betas = this._getEndoRoots(this.p);
|
|
// Choose the smallest beta
|
|
beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];
|
|
beta = beta.toRed(this.red);
|
|
}
|
|
if (conf.lambda) {
|
|
lambda = new BN(conf.lambda, 16);
|
|
} else {
|
|
// Choose the lambda that is matching selected beta
|
|
var lambdas = this._getEndoRoots(this.n);
|
|
if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {
|
|
lambda = lambdas[0];
|
|
} else {
|
|
lambda = lambdas[1];
|
|
assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);
|
|
}
|
|
}
|
|
|
|
// Get basis vectors, used for balanced length-two representation
|
|
var basis;
|
|
if (conf.basis) {
|
|
basis = conf.basis.map(function(vec) {
|
|
return {
|
|
a: new BN(vec.a, 16),
|
|
b: new BN(vec.b, 16)
|
|
};
|
|
});
|
|
} else {
|
|
basis = this._getEndoBasis(lambda);
|
|
}
|
|
|
|
return {
|
|
beta: beta,
|
|
lambda: lambda,
|
|
basis: basis
|
|
};
|
|
};
|
|
|
|
ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {
|
|
// Find roots of for x^2 + x + 1 in F
|
|
// Root = (-1 +- Sqrt(-3)) / 2
|
|
//
|
|
var red = num === this.p ? this.red : BN.mont(num);
|
|
var tinv = new BN(2).toRed(red).redInvm();
|
|
var ntinv = tinv.redNeg();
|
|
|
|
var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv);
|
|
|
|
var l1 = ntinv.redAdd(s).fromRed();
|
|
var l2 = ntinv.redSub(s).fromRed();
|
|
return [ l1, l2 ];
|
|
};
|
|
|
|
ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {
|
|
// aprxSqrt >= sqrt(this.n)
|
|
var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2));
|
|
|
|
// 3.74
|
|
// Run EGCD, until r(L + 1) < aprxSqrt
|
|
var u = lambda;
|
|
var v = this.n.clone();
|
|
var x1 = new BN(1);
|
|
var y1 = new BN(0);
|
|
var x2 = new BN(0);
|
|
var y2 = new BN(1);
|
|
|
|
// NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)
|
|
var a0;
|
|
var b0;
|
|
// First vector
|
|
var a1;
|
|
var b1;
|
|
// Second vector
|
|
var a2;
|
|
var b2;
|
|
|
|
var prevR;
|
|
var i = 0;
|
|
var r;
|
|
var x;
|
|
while (u.cmpn(0) !== 0) {
|
|
var q = v.div(u);
|
|
r = v.sub(q.mul(u));
|
|
x = x2.sub(q.mul(x1));
|
|
var y = y2.sub(q.mul(y1));
|
|
|
|
if (!a1 && r.cmp(aprxSqrt) < 0) {
|
|
a0 = prevR.neg();
|
|
b0 = x1;
|
|
a1 = r.neg();
|
|
b1 = x;
|
|
} else if (a1 && ++i === 2) {
|
|
break;
|
|
}
|
|
prevR = r;
|
|
|
|
v = u;
|
|
u = r;
|
|
x2 = x1;
|
|
x1 = x;
|
|
y2 = y1;
|
|
y1 = y;
|
|
}
|
|
a2 = r.neg();
|
|
b2 = x;
|
|
|
|
var len1 = a1.sqr().add(b1.sqr());
|
|
var len2 = a2.sqr().add(b2.sqr());
|
|
if (len2.cmp(len1) >= 0) {
|
|
a2 = a0;
|
|
b2 = b0;
|
|
}
|
|
|
|
// Normalize signs
|
|
if (a1.negative) {
|
|
a1 = a1.neg();
|
|
b1 = b1.neg();
|
|
}
|
|
if (a2.negative) {
|
|
a2 = a2.neg();
|
|
b2 = b2.neg();
|
|
}
|
|
|
|
return [
|
|
{ a: a1, b: b1 },
|
|
{ a: a2, b: b2 }
|
|
];
|
|
};
|
|
|
|
ShortCurve.prototype._endoSplit = function _endoSplit(k) {
|
|
var basis = this.endo.basis;
|
|
var v1 = basis[0];
|
|
var v2 = basis[1];
|
|
|
|
var c1 = v2.b.mul(k).divRound(this.n);
|
|
var c2 = v1.b.neg().mul(k).divRound(this.n);
|
|
|
|
var p1 = c1.mul(v1.a);
|
|
var p2 = c2.mul(v2.a);
|
|
var q1 = c1.mul(v1.b);
|
|
var q2 = c2.mul(v2.b);
|
|
|
|
// Calculate answer
|
|
var k1 = k.sub(p1).sub(p2);
|
|
var k2 = q1.add(q2).neg();
|
|
return { k1: k1, k2: k2 };
|
|
};
|
|
|
|
ShortCurve.prototype.pointFromX = function pointFromX(x, odd) {
|
|
x = new BN(x, 16);
|
|
if (!x.red)
|
|
x = x.toRed(this.red);
|
|
|
|
var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);
|
|
var y = y2.redSqrt();
|
|
if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
|
|
throw new Error('invalid point');
|
|
|
|
// XXX Is there any way to tell if the number is odd without converting it
|
|
// to non-red form?
|
|
var isOdd = y.fromRed().isOdd();
|
|
if (odd && !isOdd || !odd && isOdd)
|
|
y = y.redNeg();
|
|
|
|
return this.point(x, y);
|
|
};
|
|
|
|
ShortCurve.prototype.validate = function validate(point) {
|
|
if (point.inf)
|
|
return true;
|
|
|
|
var x = point.x;
|
|
var y = point.y;
|
|
|
|
var ax = this.a.redMul(x);
|
|
var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);
|
|
return y.redSqr().redISub(rhs).cmpn(0) === 0;
|
|
};
|
|
|
|
ShortCurve.prototype._endoWnafMulAdd =
|
|
function _endoWnafMulAdd(points, coeffs, jacobianResult) {
|
|
var npoints = this._endoWnafT1;
|
|
var ncoeffs = this._endoWnafT2;
|
|
for (var i = 0; i < points.length; i++) {
|
|
var split = this._endoSplit(coeffs[i]);
|
|
var p = points[i];
|
|
var beta = p._getBeta();
|
|
|
|
if (split.k1.negative) {
|
|
split.k1.ineg();
|
|
p = p.neg(true);
|
|
}
|
|
if (split.k2.negative) {
|
|
split.k2.ineg();
|
|
beta = beta.neg(true);
|
|
}
|
|
|
|
npoints[i * 2] = p;
|
|
npoints[i * 2 + 1] = beta;
|
|
ncoeffs[i * 2] = split.k1;
|
|
ncoeffs[i * 2 + 1] = split.k2;
|
|
}
|
|
var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult);
|
|
|
|
// Clean-up references to points and coefficients
|
|
for (var j = 0; j < i * 2; j++) {
|
|
npoints[j] = null;
|
|
ncoeffs[j] = null;
|
|
}
|
|
return res;
|
|
};
|
|
|
|
function Point(curve, x, y, isRed) {
|
|
Base.BasePoint.call(this, curve, 'affine');
|
|
if (x === null && y === null) {
|
|
this.x = null;
|
|
this.y = null;
|
|
this.inf = true;
|
|
} else {
|
|
this.x = new BN(x, 16);
|
|
this.y = new BN(y, 16);
|
|
// Force redgomery representation when loading from JSON
|
|
if (isRed) {
|
|
this.x.forceRed(this.curve.red);
|
|
this.y.forceRed(this.curve.red);
|
|
}
|
|
if (!this.x.red)
|
|
this.x = this.x.toRed(this.curve.red);
|
|
if (!this.y.red)
|
|
this.y = this.y.toRed(this.curve.red);
|
|
this.inf = false;
|
|
}
|
|
}
|
|
inherits(Point, Base.BasePoint);
|
|
|
|
ShortCurve.prototype.point = function point(x, y, isRed) {
|
|
return new Point(this, x, y, isRed);
|
|
};
|
|
|
|
ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {
|
|
return Point.fromJSON(this, obj, red);
|
|
};
|
|
|
|
Point.prototype._getBeta = function _getBeta() {
|
|
if (!this.curve.endo)
|
|
return;
|
|
|
|
var pre = this.precomputed;
|
|
if (pre && pre.beta)
|
|
return pre.beta;
|
|
|
|
var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);
|
|
if (pre) {
|
|
var curve = this.curve;
|
|
var endoMul = function(p) {
|
|
return curve.point(p.x.redMul(curve.endo.beta), p.y);
|
|
};
|
|
pre.beta = beta;
|
|
beta.precomputed = {
|
|
beta: null,
|
|
naf: pre.naf && {
|
|
wnd: pre.naf.wnd,
|
|
points: pre.naf.points.map(endoMul)
|
|
},
|
|
doubles: pre.doubles && {
|
|
step: pre.doubles.step,
|
|
points: pre.doubles.points.map(endoMul)
|
|
}
|
|
};
|
|
}
|
|
return beta;
|
|
};
|
|
|
|
Point.prototype.toJSON = function toJSON() {
|
|
if (!this.precomputed)
|
|
return [ this.x, this.y ];
|
|
|
|
return [ this.x, this.y, this.precomputed && {
|
|
doubles: this.precomputed.doubles && {
|
|
step: this.precomputed.doubles.step,
|
|
points: this.precomputed.doubles.points.slice(1)
|
|
},
|
|
naf: this.precomputed.naf && {
|
|
wnd: this.precomputed.naf.wnd,
|
|
points: this.precomputed.naf.points.slice(1)
|
|
}
|
|
} ];
|
|
};
|
|
|
|
Point.fromJSON = function fromJSON(curve, obj, red) {
|
|
if (typeof obj === 'string')
|
|
obj = JSON.parse(obj);
|
|
var res = curve.point(obj[0], obj[1], red);
|
|
if (!obj[2])
|
|
return res;
|
|
|
|
function obj2point(obj) {
|
|
return curve.point(obj[0], obj[1], red);
|
|
}
|
|
|
|
var pre = obj[2];
|
|
res.precomputed = {
|
|
beta: null,
|
|
doubles: pre.doubles && {
|
|
step: pre.doubles.step,
|
|
points: [ res ].concat(pre.doubles.points.map(obj2point))
|
|
},
|
|
naf: pre.naf && {
|
|
wnd: pre.naf.wnd,
|
|
points: [ res ].concat(pre.naf.points.map(obj2point))
|
|
}
|
|
};
|
|
return res;
|
|
};
|
|
|
|
Point.prototype.inspect = function inspect() {
|
|
if (this.isInfinity())
|
|
return '<EC Point Infinity>';
|
|
return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
|
|
' y: ' + this.y.fromRed().toString(16, 2) + '>';
|
|
};
|
|
|
|
Point.prototype.isInfinity = function isInfinity() {
|
|
return this.inf;
|
|
};
|
|
|
|
Point.prototype.add = function add(p) {
|
|
// O + P = P
|
|
if (this.inf)
|
|
return p;
|
|
|
|
// P + O = P
|
|
if (p.inf)
|
|
return this;
|
|
|
|
// P + P = 2P
|
|
if (this.eq(p))
|
|
return this.dbl();
|
|
|
|
// P + (-P) = O
|
|
if (this.neg().eq(p))
|
|
return this.curve.point(null, null);
|
|
|
|
// P + Q = O
|
|
if (this.x.cmp(p.x) === 0)
|
|
return this.curve.point(null, null);
|
|
|
|
var c = this.y.redSub(p.y);
|
|
if (c.cmpn(0) !== 0)
|
|
c = c.redMul(this.x.redSub(p.x).redInvm());
|
|
var nx = c.redSqr().redISub(this.x).redISub(p.x);
|
|
var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
|
|
return this.curve.point(nx, ny);
|
|
};
|
|
|
|
Point.prototype.dbl = function dbl() {
|
|
if (this.inf)
|
|
return this;
|
|
|
|
// 2P = O
|
|
var ys1 = this.y.redAdd(this.y);
|
|
if (ys1.cmpn(0) === 0)
|
|
return this.curve.point(null, null);
|
|
|
|
var a = this.curve.a;
|
|
|
|
var x2 = this.x.redSqr();
|
|
var dyinv = ys1.redInvm();
|
|
var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);
|
|
|
|
var nx = c.redSqr().redISub(this.x.redAdd(this.x));
|
|
var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
|
|
return this.curve.point(nx, ny);
|
|
};
|
|
|
|
Point.prototype.getX = function getX() {
|
|
return this.x.fromRed();
|
|
};
|
|
|
|
Point.prototype.getY = function getY() {
|
|
return this.y.fromRed();
|
|
};
|
|
|
|
Point.prototype.mul = function mul(k) {
|
|
k = new BN(k, 16);
|
|
if (this.isInfinity())
|
|
return this;
|
|
else if (this._hasDoubles(k))
|
|
return this.curve._fixedNafMul(this, k);
|
|
else if (this.curve.endo)
|
|
return this.curve._endoWnafMulAdd([ this ], [ k ]);
|
|
else
|
|
return this.curve._wnafMul(this, k);
|
|
};
|
|
|
|
Point.prototype.mulAdd = function mulAdd(k1, p2, k2) {
|
|
var points = [ this, p2 ];
|
|
var coeffs = [ k1, k2 ];
|
|
if (this.curve.endo)
|
|
return this.curve._endoWnafMulAdd(points, coeffs);
|
|
else
|
|
return this.curve._wnafMulAdd(1, points, coeffs, 2);
|
|
};
|
|
|
|
Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) {
|
|
var points = [ this, p2 ];
|
|
var coeffs = [ k1, k2 ];
|
|
if (this.curve.endo)
|
|
return this.curve._endoWnafMulAdd(points, coeffs, true);
|
|
else
|
|
return this.curve._wnafMulAdd(1, points, coeffs, 2, true);
|
|
};
|
|
|
|
Point.prototype.eq = function eq(p) {
|
|
return this === p ||
|
|
this.inf === p.inf &&
|
|
(this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);
|
|
};
|
|
|
|
Point.prototype.neg = function neg(_precompute) {
|
|
if (this.inf)
|
|
return this;
|
|
|
|
var res = this.curve.point(this.x, this.y.redNeg());
|
|
if (_precompute && this.precomputed) {
|
|
var pre = this.precomputed;
|
|
var negate = function(p) {
|
|
return p.neg();
|
|
};
|
|
res.precomputed = {
|
|
naf: pre.naf && {
|
|
wnd: pre.naf.wnd,
|
|
points: pre.naf.points.map(negate)
|
|
},
|
|
doubles: pre.doubles && {
|
|
step: pre.doubles.step,
|
|
points: pre.doubles.points.map(negate)
|
|
}
|
|
};
|
|
}
|
|
return res;
|
|
};
|
|
|
|
Point.prototype.toJ = function toJ() {
|
|
if (this.inf)
|
|
return this.curve.jpoint(null, null, null);
|
|
|
|
var res = this.curve.jpoint(this.x, this.y, this.curve.one);
|
|
return res;
|
|
};
|
|
|
|
function JPoint(curve, x, y, z) {
|
|
Base.BasePoint.call(this, curve, 'jacobian');
|
|
if (x === null && y === null && z === null) {
|
|
this.x = this.curve.one;
|
|
this.y = this.curve.one;
|
|
this.z = new BN(0);
|
|
} else {
|
|
this.x = new BN(x, 16);
|
|
this.y = new BN(y, 16);
|
|
this.z = new BN(z, 16);
|
|
}
|
|
if (!this.x.red)
|
|
this.x = this.x.toRed(this.curve.red);
|
|
if (!this.y.red)
|
|
this.y = this.y.toRed(this.curve.red);
|
|
if (!this.z.red)
|
|
this.z = this.z.toRed(this.curve.red);
|
|
|
|
this.zOne = this.z === this.curve.one;
|
|
}
|
|
inherits(JPoint, Base.BasePoint);
|
|
|
|
ShortCurve.prototype.jpoint = function jpoint(x, y, z) {
|
|
return new JPoint(this, x, y, z);
|
|
};
|
|
|
|
JPoint.prototype.toP = function toP() {
|
|
if (this.isInfinity())
|
|
return this.curve.point(null, null);
|
|
|
|
var zinv = this.z.redInvm();
|
|
var zinv2 = zinv.redSqr();
|
|
var ax = this.x.redMul(zinv2);
|
|
var ay = this.y.redMul(zinv2).redMul(zinv);
|
|
|
|
return this.curve.point(ax, ay);
|
|
};
|
|
|
|
JPoint.prototype.neg = function neg() {
|
|
return this.curve.jpoint(this.x, this.y.redNeg(), this.z);
|
|
};
|
|
|
|
JPoint.prototype.add = function add(p) {
|
|
// O + P = P
|
|
if (this.isInfinity())
|
|
return p;
|
|
|
|
// P + O = P
|
|
if (p.isInfinity())
|
|
return this;
|
|
|
|
// 12M + 4S + 7A
|
|
var pz2 = p.z.redSqr();
|
|
var z2 = this.z.redSqr();
|
|
var u1 = this.x.redMul(pz2);
|
|
var u2 = p.x.redMul(z2);
|
|
var s1 = this.y.redMul(pz2.redMul(p.z));
|
|
var s2 = p.y.redMul(z2.redMul(this.z));
|
|
|
|
var h = u1.redSub(u2);
|
|
var r = s1.redSub(s2);
|
|
if (h.cmpn(0) === 0) {
|
|
if (r.cmpn(0) !== 0)
|
|
return this.curve.jpoint(null, null, null);
|
|
else
|
|
return this.dbl();
|
|
}
|
|
|
|
var h2 = h.redSqr();
|
|
var h3 = h2.redMul(h);
|
|
var v = u1.redMul(h2);
|
|
|
|
var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
|
|
var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
|
|
var nz = this.z.redMul(p.z).redMul(h);
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype.mixedAdd = function mixedAdd(p) {
|
|
// O + P = P
|
|
if (this.isInfinity())
|
|
return p.toJ();
|
|
|
|
// P + O = P
|
|
if (p.isInfinity())
|
|
return this;
|
|
|
|
// 8M + 3S + 7A
|
|
var z2 = this.z.redSqr();
|
|
var u1 = this.x;
|
|
var u2 = p.x.redMul(z2);
|
|
var s1 = this.y;
|
|
var s2 = p.y.redMul(z2).redMul(this.z);
|
|
|
|
var h = u1.redSub(u2);
|
|
var r = s1.redSub(s2);
|
|
if (h.cmpn(0) === 0) {
|
|
if (r.cmpn(0) !== 0)
|
|
return this.curve.jpoint(null, null, null);
|
|
else
|
|
return this.dbl();
|
|
}
|
|
|
|
var h2 = h.redSqr();
|
|
var h3 = h2.redMul(h);
|
|
var v = u1.redMul(h2);
|
|
|
|
var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
|
|
var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
|
|
var nz = this.z.redMul(h);
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype.dblp = function dblp(pow) {
|
|
if (pow === 0)
|
|
return this;
|
|
if (this.isInfinity())
|
|
return this;
|
|
if (!pow)
|
|
return this.dbl();
|
|
|
|
if (this.curve.zeroA || this.curve.threeA) {
|
|
var r = this;
|
|
for (var i = 0; i < pow; i++)
|
|
r = r.dbl();
|
|
return r;
|
|
}
|
|
|
|
// 1M + 2S + 1A + N * (4S + 5M + 8A)
|
|
// N = 1 => 6M + 6S + 9A
|
|
var a = this.curve.a;
|
|
var tinv = this.curve.tinv;
|
|
|
|
var jx = this.x;
|
|
var jy = this.y;
|
|
var jz = this.z;
|
|
var jz4 = jz.redSqr().redSqr();
|
|
|
|
// Reuse results
|
|
var jyd = jy.redAdd(jy);
|
|
for (var i = 0; i < pow; i++) {
|
|
var jx2 = jx.redSqr();
|
|
var jyd2 = jyd.redSqr();
|
|
var jyd4 = jyd2.redSqr();
|
|
var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
|
|
|
|
var t1 = jx.redMul(jyd2);
|
|
var nx = c.redSqr().redISub(t1.redAdd(t1));
|
|
var t2 = t1.redISub(nx);
|
|
var dny = c.redMul(t2);
|
|
dny = dny.redIAdd(dny).redISub(jyd4);
|
|
var nz = jyd.redMul(jz);
|
|
if (i + 1 < pow)
|
|
jz4 = jz4.redMul(jyd4);
|
|
|
|
jx = nx;
|
|
jz = nz;
|
|
jyd = dny;
|
|
}
|
|
|
|
return this.curve.jpoint(jx, jyd.redMul(tinv), jz);
|
|
};
|
|
|
|
JPoint.prototype.dbl = function dbl() {
|
|
if (this.isInfinity())
|
|
return this;
|
|
|
|
if (this.curve.zeroA)
|
|
return this._zeroDbl();
|
|
else if (this.curve.threeA)
|
|
return this._threeDbl();
|
|
else
|
|
return this._dbl();
|
|
};
|
|
|
|
JPoint.prototype._zeroDbl = function _zeroDbl() {
|
|
var nx;
|
|
var ny;
|
|
var nz;
|
|
// Z = 1
|
|
if (this.zOne) {
|
|
// hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
|
|
// #doubling-mdbl-2007-bl
|
|
// 1M + 5S + 14A
|
|
|
|
// XX = X1^2
|
|
var xx = this.x.redSqr();
|
|
// YY = Y1^2
|
|
var yy = this.y.redSqr();
|
|
// YYYY = YY^2
|
|
var yyyy = yy.redSqr();
|
|
// S = 2 * ((X1 + YY)^2 - XX - YYYY)
|
|
var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
|
|
s = s.redIAdd(s);
|
|
// M = 3 * XX + a; a = 0
|
|
var m = xx.redAdd(xx).redIAdd(xx);
|
|
// T = M ^ 2 - 2*S
|
|
var t = m.redSqr().redISub(s).redISub(s);
|
|
|
|
// 8 * YYYY
|
|
var yyyy8 = yyyy.redIAdd(yyyy);
|
|
yyyy8 = yyyy8.redIAdd(yyyy8);
|
|
yyyy8 = yyyy8.redIAdd(yyyy8);
|
|
|
|
// X3 = T
|
|
nx = t;
|
|
// Y3 = M * (S - T) - 8 * YYYY
|
|
ny = m.redMul(s.redISub(t)).redISub(yyyy8);
|
|
// Z3 = 2*Y1
|
|
nz = this.y.redAdd(this.y);
|
|
} else {
|
|
// hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
|
|
// #doubling-dbl-2009-l
|
|
// 2M + 5S + 13A
|
|
|
|
// A = X1^2
|
|
var a = this.x.redSqr();
|
|
// B = Y1^2
|
|
var b = this.y.redSqr();
|
|
// C = B^2
|
|
var c = b.redSqr();
|
|
// D = 2 * ((X1 + B)^2 - A - C)
|
|
var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);
|
|
d = d.redIAdd(d);
|
|
// E = 3 * A
|
|
var e = a.redAdd(a).redIAdd(a);
|
|
// F = E^2
|
|
var f = e.redSqr();
|
|
|
|
// 8 * C
|
|
var c8 = c.redIAdd(c);
|
|
c8 = c8.redIAdd(c8);
|
|
c8 = c8.redIAdd(c8);
|
|
|
|
// X3 = F - 2 * D
|
|
nx = f.redISub(d).redISub(d);
|
|
// Y3 = E * (D - X3) - 8 * C
|
|
ny = e.redMul(d.redISub(nx)).redISub(c8);
|
|
// Z3 = 2 * Y1 * Z1
|
|
nz = this.y.redMul(this.z);
|
|
nz = nz.redIAdd(nz);
|
|
}
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype._threeDbl = function _threeDbl() {
|
|
var nx;
|
|
var ny;
|
|
var nz;
|
|
// Z = 1
|
|
if (this.zOne) {
|
|
// hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html
|
|
// #doubling-mdbl-2007-bl
|
|
// 1M + 5S + 15A
|
|
|
|
// XX = X1^2
|
|
var xx = this.x.redSqr();
|
|
// YY = Y1^2
|
|
var yy = this.y.redSqr();
|
|
// YYYY = YY^2
|
|
var yyyy = yy.redSqr();
|
|
// S = 2 * ((X1 + YY)^2 - XX - YYYY)
|
|
var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
|
|
s = s.redIAdd(s);
|
|
// M = 3 * XX + a
|
|
var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);
|
|
// T = M^2 - 2 * S
|
|
var t = m.redSqr().redISub(s).redISub(s);
|
|
// X3 = T
|
|
nx = t;
|
|
// Y3 = M * (S - T) - 8 * YYYY
|
|
var yyyy8 = yyyy.redIAdd(yyyy);
|
|
yyyy8 = yyyy8.redIAdd(yyyy8);
|
|
yyyy8 = yyyy8.redIAdd(yyyy8);
|
|
ny = m.redMul(s.redISub(t)).redISub(yyyy8);
|
|
// Z3 = 2 * Y1
|
|
nz = this.y.redAdd(this.y);
|
|
} else {
|
|
// hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
|
|
// 3M + 5S
|
|
|
|
// delta = Z1^2
|
|
var delta = this.z.redSqr();
|
|
// gamma = Y1^2
|
|
var gamma = this.y.redSqr();
|
|
// beta = X1 * gamma
|
|
var beta = this.x.redMul(gamma);
|
|
// alpha = 3 * (X1 - delta) * (X1 + delta)
|
|
var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));
|
|
alpha = alpha.redAdd(alpha).redIAdd(alpha);
|
|
// X3 = alpha^2 - 8 * beta
|
|
var beta4 = beta.redIAdd(beta);
|
|
beta4 = beta4.redIAdd(beta4);
|
|
var beta8 = beta4.redAdd(beta4);
|
|
nx = alpha.redSqr().redISub(beta8);
|
|
// Z3 = (Y1 + Z1)^2 - gamma - delta
|
|
nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);
|
|
// Y3 = alpha * (4 * beta - X3) - 8 * gamma^2
|
|
var ggamma8 = gamma.redSqr();
|
|
ggamma8 = ggamma8.redIAdd(ggamma8);
|
|
ggamma8 = ggamma8.redIAdd(ggamma8);
|
|
ggamma8 = ggamma8.redIAdd(ggamma8);
|
|
ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);
|
|
}
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype._dbl = function _dbl() {
|
|
var a = this.curve.a;
|
|
|
|
// 4M + 6S + 10A
|
|
var jx = this.x;
|
|
var jy = this.y;
|
|
var jz = this.z;
|
|
var jz4 = jz.redSqr().redSqr();
|
|
|
|
var jx2 = jx.redSqr();
|
|
var jy2 = jy.redSqr();
|
|
|
|
var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
|
|
|
|
var jxd4 = jx.redAdd(jx);
|
|
jxd4 = jxd4.redIAdd(jxd4);
|
|
var t1 = jxd4.redMul(jy2);
|
|
var nx = c.redSqr().redISub(t1.redAdd(t1));
|
|
var t2 = t1.redISub(nx);
|
|
|
|
var jyd8 = jy2.redSqr();
|
|
jyd8 = jyd8.redIAdd(jyd8);
|
|
jyd8 = jyd8.redIAdd(jyd8);
|
|
jyd8 = jyd8.redIAdd(jyd8);
|
|
var ny = c.redMul(t2).redISub(jyd8);
|
|
var nz = jy.redAdd(jy).redMul(jz);
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype.trpl = function trpl() {
|
|
if (!this.curve.zeroA)
|
|
return this.dbl().add(this);
|
|
|
|
// hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl
|
|
// 5M + 10S + ...
|
|
|
|
// XX = X1^2
|
|
var xx = this.x.redSqr();
|
|
// YY = Y1^2
|
|
var yy = this.y.redSqr();
|
|
// ZZ = Z1^2
|
|
var zz = this.z.redSqr();
|
|
// YYYY = YY^2
|
|
var yyyy = yy.redSqr();
|
|
// M = 3 * XX + a * ZZ2; a = 0
|
|
var m = xx.redAdd(xx).redIAdd(xx);
|
|
// MM = M^2
|
|
var mm = m.redSqr();
|
|
// E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM
|
|
var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
|
|
e = e.redIAdd(e);
|
|
e = e.redAdd(e).redIAdd(e);
|
|
e = e.redISub(mm);
|
|
// EE = E^2
|
|
var ee = e.redSqr();
|
|
// T = 16*YYYY
|
|
var t = yyyy.redIAdd(yyyy);
|
|
t = t.redIAdd(t);
|
|
t = t.redIAdd(t);
|
|
t = t.redIAdd(t);
|
|
// U = (M + E)^2 - MM - EE - T
|
|
var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);
|
|
// X3 = 4 * (X1 * EE - 4 * YY * U)
|
|
var yyu4 = yy.redMul(u);
|
|
yyu4 = yyu4.redIAdd(yyu4);
|
|
yyu4 = yyu4.redIAdd(yyu4);
|
|
var nx = this.x.redMul(ee).redISub(yyu4);
|
|
nx = nx.redIAdd(nx);
|
|
nx = nx.redIAdd(nx);
|
|
// Y3 = 8 * Y1 * (U * (T - U) - E * EE)
|
|
var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));
|
|
ny = ny.redIAdd(ny);
|
|
ny = ny.redIAdd(ny);
|
|
ny = ny.redIAdd(ny);
|
|
// Z3 = (Z1 + E)^2 - ZZ - EE
|
|
var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);
|
|
|
|
return this.curve.jpoint(nx, ny, nz);
|
|
};
|
|
|
|
JPoint.prototype.mul = function mul(k, kbase) {
|
|
k = new BN(k, kbase);
|
|
|
|
return this.curve._wnafMul(this, k);
|
|
};
|
|
|
|
JPoint.prototype.eq = function eq(p) {
|
|
if (p.type === 'affine')
|
|
return this.eq(p.toJ());
|
|
|
|
if (this === p)
|
|
return true;
|
|
|
|
// x1 * z2^2 == x2 * z1^2
|
|
var z2 = this.z.redSqr();
|
|
var pz2 = p.z.redSqr();
|
|
if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)
|
|
return false;
|
|
|
|
// y1 * z2^3 == y2 * z1^3
|
|
var z3 = z2.redMul(this.z);
|
|
var pz3 = pz2.redMul(p.z);
|
|
return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;
|
|
};
|
|
|
|
JPoint.prototype.eqXToP = function eqXToP(x) {
|
|
var zs = this.z.redSqr();
|
|
var rx = x.toRed(this.curve.red).redMul(zs);
|
|
if (this.x.cmp(rx) === 0)
|
|
return true;
|
|
|
|
var xc = x.clone();
|
|
var t = this.curve.redN.redMul(zs);
|
|
for (;;) {
|
|
xc.iadd(this.curve.n);
|
|
if (xc.cmp(this.curve.p) >= 0)
|
|
return false;
|
|
|
|
rx.redIAdd(t);
|
|
if (this.x.cmp(rx) === 0)
|
|
return true;
|
|
}
|
|
};
|
|
|
|
JPoint.prototype.inspect = function inspect() {
|
|
if (this.isInfinity())
|
|
return '<EC JPoint Infinity>';
|
|
return '<EC JPoint x: ' + this.x.toString(16, 2) +
|
|
' y: ' + this.y.toString(16, 2) +
|
|
' z: ' + this.z.toString(16, 2) + '>';
|
|
};
|
|
|
|
JPoint.prototype.isInfinity = function isInfinity() {
|
|
// XXX This code assumes that zero is always zero in red
|
|
return this.z.cmpn(0) === 0;
|
|
};
|
|
|
|
},{"../utils":81,"./base":68,"bn.js":16,"inherits":100}],73:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var curves = exports;
|
|
|
|
var hash = require('hash.js');
|
|
var curve = require('./curve');
|
|
var utils = require('./utils');
|
|
|
|
var assert = utils.assert;
|
|
|
|
function PresetCurve(options) {
|
|
if (options.type === 'short')
|
|
this.curve = new curve.short(options);
|
|
else if (options.type === 'edwards')
|
|
this.curve = new curve.edwards(options);
|
|
else
|
|
this.curve = new curve.mont(options);
|
|
this.g = this.curve.g;
|
|
this.n = this.curve.n;
|
|
this.hash = options.hash;
|
|
|
|
assert(this.g.validate(), 'Invalid curve');
|
|
assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');
|
|
}
|
|
curves.PresetCurve = PresetCurve;
|
|
|
|
function defineCurve(name, options) {
|
|
Object.defineProperty(curves, name, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get: function() {
|
|
var curve = new PresetCurve(options);
|
|
Object.defineProperty(curves, name, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
value: curve
|
|
});
|
|
return curve;
|
|
}
|
|
});
|
|
}
|
|
|
|
defineCurve('p192', {
|
|
type: 'short',
|
|
prime: 'p192',
|
|
p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
|
|
a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
|
|
b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',
|
|
n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',
|
|
hash: hash.sha256,
|
|
gRed: false,
|
|
g: [
|
|
'188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',
|
|
'07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'
|
|
]
|
|
});
|
|
|
|
defineCurve('p224', {
|
|
type: 'short',
|
|
prime: 'p224',
|
|
p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
|
|
a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
|
|
b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',
|
|
n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',
|
|
hash: hash.sha256,
|
|
gRed: false,
|
|
g: [
|
|
'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',
|
|
'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'
|
|
]
|
|
});
|
|
|
|
defineCurve('p256', {
|
|
type: 'short',
|
|
prime: null,
|
|
p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',
|
|
a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',
|
|
b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',
|
|
n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',
|
|
hash: hash.sha256,
|
|
gRed: false,
|
|
g: [
|
|
'6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',
|
|
'4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'
|
|
]
|
|
});
|
|
|
|
defineCurve('p384', {
|
|
type: 'short',
|
|
prime: null,
|
|
p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'fffffffe ffffffff 00000000 00000000 ffffffff',
|
|
a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'fffffffe ffffffff 00000000 00000000 fffffffc',
|
|
b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' +
|
|
'5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef',
|
|
n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' +
|
|
'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973',
|
|
hash: hash.sha384,
|
|
gRed: false,
|
|
g: [
|
|
'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' +
|
|
'5502f25d bf55296c 3a545e38 72760ab7',
|
|
'3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' +
|
|
'0a60b1ce 1d7e819d 7a431d7c 90ea0e5f'
|
|
]
|
|
});
|
|
|
|
defineCurve('p521', {
|
|
type: 'short',
|
|
prime: null,
|
|
p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'ffffffff ffffffff ffffffff ffffffff ffffffff',
|
|
a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'ffffffff ffffffff ffffffff ffffffff fffffffc',
|
|
b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' +
|
|
'99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' +
|
|
'3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00',
|
|
n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
|
|
'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' +
|
|
'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409',
|
|
hash: hash.sha512,
|
|
gRed: false,
|
|
g: [
|
|
'000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' +
|
|
'053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' +
|
|
'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66',
|
|
'00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' +
|
|
'579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' +
|
|
'3fad0761 353c7086 a272c240 88be9476 9fd16650'
|
|
]
|
|
});
|
|
|
|
defineCurve('curve25519', {
|
|
type: 'mont',
|
|
prime: 'p25519',
|
|
p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
|
|
a: '76d06',
|
|
b: '1',
|
|
n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
|
|
hash: hash.sha256,
|
|
gRed: false,
|
|
g: [
|
|
'9'
|
|
]
|
|
});
|
|
|
|
defineCurve('ed25519', {
|
|
type: 'edwards',
|
|
prime: 'p25519',
|
|
p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
|
|
a: '-1',
|
|
c: '1',
|
|
// -121665 * (121666^(-1)) (mod P)
|
|
d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',
|
|
n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
|
|
hash: hash.sha256,
|
|
gRed: false,
|
|
g: [
|
|
'216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',
|
|
|
|
// 4/5
|
|
'6666666666666666666666666666666666666666666666666666666666666658'
|
|
]
|
|
});
|
|
|
|
var pre;
|
|
try {
|
|
pre = require('./precomputed/secp256k1');
|
|
} catch (e) {
|
|
pre = undefined;
|
|
}
|
|
|
|
defineCurve('secp256k1', {
|
|
type: 'short',
|
|
prime: 'k256',
|
|
p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',
|
|
a: '0',
|
|
b: '7',
|
|
n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',
|
|
h: '1',
|
|
hash: hash.sha256,
|
|
|
|
// Precomputed endomorphism
|
|
beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',
|
|
lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',
|
|
basis: [
|
|
{
|
|
a: '3086d221a7d46bcde86c90e49284eb15',
|
|
b: '-e4437ed6010e88286f547fa90abfe4c3'
|
|
},
|
|
{
|
|
a: '114ca50f7a8e2f3f657c1108d9d44cfd8',
|
|
b: '3086d221a7d46bcde86c90e49284eb15'
|
|
}
|
|
],
|
|
|
|
gRed: false,
|
|
g: [
|
|
'79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',
|
|
'483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',
|
|
pre
|
|
]
|
|
});
|
|
|
|
},{"./curve":70,"./precomputed/secp256k1":80,"./utils":81,"hash.js":86}],74:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var HmacDRBG = require('hmac-drbg');
|
|
var utils = require('../utils');
|
|
var curves = require('../curves');
|
|
var rand = require('brorand');
|
|
var assert = utils.assert;
|
|
|
|
var KeyPair = require('./key');
|
|
var Signature = require('./signature');
|
|
|
|
function EC(options) {
|
|
if (!(this instanceof EC))
|
|
return new EC(options);
|
|
|
|
// Shortcut `elliptic.ec(curve-name)`
|
|
if (typeof options === 'string') {
|
|
assert(curves.hasOwnProperty(options), 'Unknown curve ' + options);
|
|
|
|
options = curves[options];
|
|
}
|
|
|
|
// Shortcut for `elliptic.ec(elliptic.curves.curveName)`
|
|
if (options instanceof curves.PresetCurve)
|
|
options = { curve: options };
|
|
|
|
this.curve = options.curve.curve;
|
|
this.n = this.curve.n;
|
|
this.nh = this.n.ushrn(1);
|
|
this.g = this.curve.g;
|
|
|
|
// Point on curve
|
|
this.g = options.curve.g;
|
|
this.g.precompute(options.curve.n.bitLength() + 1);
|
|
|
|
// Hash for function for DRBG
|
|
this.hash = options.hash || options.curve.hash;
|
|
}
|
|
module.exports = EC;
|
|
|
|
EC.prototype.keyPair = function keyPair(options) {
|
|
return new KeyPair(this, options);
|
|
};
|
|
|
|
EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {
|
|
return KeyPair.fromPrivate(this, priv, enc);
|
|
};
|
|
|
|
EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {
|
|
return KeyPair.fromPublic(this, pub, enc);
|
|
};
|
|
|
|
EC.prototype.genKeyPair = function genKeyPair(options) {
|
|
if (!options)
|
|
options = {};
|
|
|
|
// Instantiate Hmac_DRBG
|
|
var drbg = new HmacDRBG({
|
|
hash: this.hash,
|
|
pers: options.pers,
|
|
persEnc: options.persEnc || 'utf8',
|
|
entropy: options.entropy || rand(this.hash.hmacStrength),
|
|
entropyEnc: options.entropy && options.entropyEnc || 'utf8',
|
|
nonce: this.n.toArray()
|
|
});
|
|
|
|
var bytes = this.n.byteLength();
|
|
var ns2 = this.n.sub(new BN(2));
|
|
do {
|
|
var priv = new BN(drbg.generate(bytes));
|
|
if (priv.cmp(ns2) > 0)
|
|
continue;
|
|
|
|
priv.iaddn(1);
|
|
return this.keyFromPrivate(priv);
|
|
} while (true);
|
|
};
|
|
|
|
EC.prototype._truncateToN = function truncateToN(msg, truncOnly) {
|
|
var delta = msg.byteLength() * 8 - this.n.bitLength();
|
|
if (delta > 0)
|
|
msg = msg.ushrn(delta);
|
|
if (!truncOnly && msg.cmp(this.n) >= 0)
|
|
return msg.sub(this.n);
|
|
else
|
|
return msg;
|
|
};
|
|
|
|
EC.prototype.sign = function sign(msg, key, enc, options) {
|
|
if (typeof enc === 'object') {
|
|
options = enc;
|
|
enc = null;
|
|
}
|
|
if (!options)
|
|
options = {};
|
|
|
|
key = this.keyFromPrivate(key, enc);
|
|
msg = this._truncateToN(new BN(msg, 16));
|
|
|
|
// Zero-extend key to provide enough entropy
|
|
var bytes = this.n.byteLength();
|
|
var bkey = key.getPrivate().toArray('be', bytes);
|
|
|
|
// Zero-extend nonce to have the same byte size as N
|
|
var nonce = msg.toArray('be', bytes);
|
|
|
|
// Instantiate Hmac_DRBG
|
|
var drbg = new HmacDRBG({
|
|
hash: this.hash,
|
|
entropy: bkey,
|
|
nonce: nonce,
|
|
pers: options.pers,
|
|
persEnc: options.persEnc || 'utf8'
|
|
});
|
|
|
|
// Number of bytes to generate
|
|
var ns1 = this.n.sub(new BN(1));
|
|
|
|
for (var iter = 0; true; iter++) {
|
|
var k = options.k ?
|
|
options.k(iter) :
|
|
new BN(drbg.generate(this.n.byteLength()));
|
|
k = this._truncateToN(k, true);
|
|
if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)
|
|
continue;
|
|
|
|
var kp = this.g.mul(k);
|
|
if (kp.isInfinity())
|
|
continue;
|
|
|
|
var kpX = kp.getX();
|
|
var r = kpX.umod(this.n);
|
|
if (r.cmpn(0) === 0)
|
|
continue;
|
|
|
|
var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg));
|
|
s = s.umod(this.n);
|
|
if (s.cmpn(0) === 0)
|
|
continue;
|
|
|
|
var recoveryParam = (kp.getY().isOdd() ? 1 : 0) |
|
|
(kpX.cmp(r) !== 0 ? 2 : 0);
|
|
|
|
// Use complement of `s`, if it is > `n / 2`
|
|
if (options.canonical && s.cmp(this.nh) > 0) {
|
|
s = this.n.sub(s);
|
|
recoveryParam ^= 1;
|
|
}
|
|
|
|
return new Signature({ r: r, s: s, recoveryParam: recoveryParam });
|
|
}
|
|
};
|
|
|
|
EC.prototype.verify = function verify(msg, signature, key, enc) {
|
|
msg = this._truncateToN(new BN(msg, 16));
|
|
key = this.keyFromPublic(key, enc);
|
|
signature = new Signature(signature, 'hex');
|
|
|
|
// Perform primitive values validation
|
|
var r = signature.r;
|
|
var s = signature.s;
|
|
if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)
|
|
return false;
|
|
if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)
|
|
return false;
|
|
|
|
// Validate signature
|
|
var sinv = s.invm(this.n);
|
|
var u1 = sinv.mul(msg).umod(this.n);
|
|
var u2 = sinv.mul(r).umod(this.n);
|
|
|
|
if (!this.curve._maxwellTrick) {
|
|
var p = this.g.mulAdd(u1, key.getPublic(), u2);
|
|
if (p.isInfinity())
|
|
return false;
|
|
|
|
return p.getX().umod(this.n).cmp(r) === 0;
|
|
}
|
|
|
|
// NOTE: Greg Maxwell's trick, inspired by:
|
|
// https://git.io/vad3K
|
|
|
|
var p = this.g.jmulAdd(u1, key.getPublic(), u2);
|
|
if (p.isInfinity())
|
|
return false;
|
|
|
|
// Compare `p.x` of Jacobian point with `r`,
|
|
// this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the
|
|
// inverse of `p.z^2`
|
|
return p.eqXToP(r);
|
|
};
|
|
|
|
EC.prototype.recoverPubKey = function(msg, signature, j, enc) {
|
|
assert((3 & j) === j, 'The recovery param is more than two bits');
|
|
signature = new Signature(signature, enc);
|
|
|
|
var n = this.n;
|
|
var e = new BN(msg);
|
|
var r = signature.r;
|
|
var s = signature.s;
|
|
|
|
// A set LSB signifies that the y-coordinate is odd
|
|
var isYOdd = j & 1;
|
|
var isSecondKey = j >> 1;
|
|
if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey)
|
|
throw new Error('Unable to find sencond key candinate');
|
|
|
|
// 1.1. Let x = r + jn.
|
|
if (isSecondKey)
|
|
r = this.curve.pointFromX(r.add(this.curve.n), isYOdd);
|
|
else
|
|
r = this.curve.pointFromX(r, isYOdd);
|
|
|
|
var rInv = signature.r.invm(n);
|
|
var s1 = n.sub(e).mul(rInv).umod(n);
|
|
var s2 = s.mul(rInv).umod(n);
|
|
|
|
// 1.6.1 Compute Q = r^-1 (sR - eG)
|
|
// Q = r^-1 (sR + -eG)
|
|
return this.g.mulAdd(s1, r, s2);
|
|
};
|
|
|
|
EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
|
|
signature = new Signature(signature, enc);
|
|
if (signature.recoveryParam !== null)
|
|
return signature.recoveryParam;
|
|
|
|
for (var i = 0; i < 4; i++) {
|
|
var Qprime;
|
|
try {
|
|
Qprime = this.recoverPubKey(e, signature, i);
|
|
} catch (e) {
|
|
continue;
|
|
}
|
|
|
|
if (Qprime.eq(Q))
|
|
return i;
|
|
}
|
|
throw new Error('Unable to find valid recovery factor');
|
|
};
|
|
|
|
},{"../curves":73,"../utils":81,"./key":75,"./signature":76,"bn.js":16,"brorand":17,"hmac-drbg":98}],75:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var utils = require('../utils');
|
|
var assert = utils.assert;
|
|
|
|
function KeyPair(ec, options) {
|
|
this.ec = ec;
|
|
this.priv = null;
|
|
this.pub = null;
|
|
|
|
// KeyPair(ec, { priv: ..., pub: ... })
|
|
if (options.priv)
|
|
this._importPrivate(options.priv, options.privEnc);
|
|
if (options.pub)
|
|
this._importPublic(options.pub, options.pubEnc);
|
|
}
|
|
module.exports = KeyPair;
|
|
|
|
KeyPair.fromPublic = function fromPublic(ec, pub, enc) {
|
|
if (pub instanceof KeyPair)
|
|
return pub;
|
|
|
|
return new KeyPair(ec, {
|
|
pub: pub,
|
|
pubEnc: enc
|
|
});
|
|
};
|
|
|
|
KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {
|
|
if (priv instanceof KeyPair)
|
|
return priv;
|
|
|
|
return new KeyPair(ec, {
|
|
priv: priv,
|
|
privEnc: enc
|
|
});
|
|
};
|
|
|
|
KeyPair.prototype.validate = function validate() {
|
|
var pub = this.getPublic();
|
|
|
|
if (pub.isInfinity())
|
|
return { result: false, reason: 'Invalid public key' };
|
|
if (!pub.validate())
|
|
return { result: false, reason: 'Public key is not a point' };
|
|
if (!pub.mul(this.ec.curve.n).isInfinity())
|
|
return { result: false, reason: 'Public key * N != O' };
|
|
|
|
return { result: true, reason: null };
|
|
};
|
|
|
|
KeyPair.prototype.getPublic = function getPublic(compact, enc) {
|
|
// compact is optional argument
|
|
if (typeof compact === 'string') {
|
|
enc = compact;
|
|
compact = null;
|
|
}
|
|
|
|
if (!this.pub)
|
|
this.pub = this.ec.g.mul(this.priv);
|
|
|
|
if (!enc)
|
|
return this.pub;
|
|
|
|
return this.pub.encode(enc, compact);
|
|
};
|
|
|
|
KeyPair.prototype.getPrivate = function getPrivate(enc) {
|
|
if (enc === 'hex')
|
|
return this.priv.toString(16, 2);
|
|
else
|
|
return this.priv;
|
|
};
|
|
|
|
KeyPair.prototype._importPrivate = function _importPrivate(key, enc) {
|
|
this.priv = new BN(key, enc || 16);
|
|
|
|
// Ensure that the priv won't be bigger than n, otherwise we may fail
|
|
// in fixed multiplication method
|
|
this.priv = this.priv.umod(this.ec.curve.n);
|
|
};
|
|
|
|
KeyPair.prototype._importPublic = function _importPublic(key, enc) {
|
|
if (key.x || key.y) {
|
|
// Montgomery points only have an `x` coordinate.
|
|
// Weierstrass/Edwards points on the other hand have both `x` and
|
|
// `y` coordinates.
|
|
if (this.ec.curve.type === 'mont') {
|
|
assert(key.x, 'Need x coordinate');
|
|
} else if (this.ec.curve.type === 'short' ||
|
|
this.ec.curve.type === 'edwards') {
|
|
assert(key.x && key.y, 'Need both x and y coordinate');
|
|
}
|
|
this.pub = this.ec.curve.point(key.x, key.y);
|
|
return;
|
|
}
|
|
this.pub = this.ec.curve.decodePoint(key, enc);
|
|
};
|
|
|
|
// ECDH
|
|
KeyPair.prototype.derive = function derive(pub) {
|
|
return pub.mul(this.priv).getX();
|
|
};
|
|
|
|
// ECDSA
|
|
KeyPair.prototype.sign = function sign(msg, enc, options) {
|
|
return this.ec.sign(msg, this, enc, options);
|
|
};
|
|
|
|
KeyPair.prototype.verify = function verify(msg, signature) {
|
|
return this.ec.verify(msg, signature, this);
|
|
};
|
|
|
|
KeyPair.prototype.inspect = function inspect() {
|
|
return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +
|
|
' pub: ' + (this.pub && this.pub.inspect()) + ' >';
|
|
};
|
|
|
|
},{"../utils":81,"bn.js":16}],76:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
|
|
var utils = require('../utils');
|
|
var assert = utils.assert;
|
|
|
|
function Signature(options, enc) {
|
|
if (options instanceof Signature)
|
|
return options;
|
|
|
|
if (this._importDER(options, enc))
|
|
return;
|
|
|
|
assert(options.r && options.s, 'Signature without r or s');
|
|
this.r = new BN(options.r, 16);
|
|
this.s = new BN(options.s, 16);
|
|
if (options.recoveryParam === undefined)
|
|
this.recoveryParam = null;
|
|
else
|
|
this.recoveryParam = options.recoveryParam;
|
|
}
|
|
module.exports = Signature;
|
|
|
|
function Position() {
|
|
this.place = 0;
|
|
}
|
|
|
|
function getLength(buf, p) {
|
|
var initial = buf[p.place++];
|
|
if (!(initial & 0x80)) {
|
|
return initial;
|
|
}
|
|
var octetLen = initial & 0xf;
|
|
var val = 0;
|
|
for (var i = 0, off = p.place; i < octetLen; i++, off++) {
|
|
val <<= 8;
|
|
val |= buf[off];
|
|
}
|
|
p.place = off;
|
|
return val;
|
|
}
|
|
|
|
function rmPadding(buf) {
|
|
var i = 0;
|
|
var len = buf.length - 1;
|
|
while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) {
|
|
i++;
|
|
}
|
|
if (i === 0) {
|
|
return buf;
|
|
}
|
|
return buf.slice(i);
|
|
}
|
|
|
|
Signature.prototype._importDER = function _importDER(data, enc) {
|
|
data = utils.toArray(data, enc);
|
|
var p = new Position();
|
|
if (data[p.place++] !== 0x30) {
|
|
return false;
|
|
}
|
|
var len = getLength(data, p);
|
|
if ((len + p.place) !== data.length) {
|
|
return false;
|
|
}
|
|
if (data[p.place++] !== 0x02) {
|
|
return false;
|
|
}
|
|
var rlen = getLength(data, p);
|
|
var r = data.slice(p.place, rlen + p.place);
|
|
p.place += rlen;
|
|
if (data[p.place++] !== 0x02) {
|
|
return false;
|
|
}
|
|
var slen = getLength(data, p);
|
|
if (data.length !== slen + p.place) {
|
|
return false;
|
|
}
|
|
var s = data.slice(p.place, slen + p.place);
|
|
if (r[0] === 0 && (r[1] & 0x80)) {
|
|
r = r.slice(1);
|
|
}
|
|
if (s[0] === 0 && (s[1] & 0x80)) {
|
|
s = s.slice(1);
|
|
}
|
|
|
|
this.r = new BN(r);
|
|
this.s = new BN(s);
|
|
this.recoveryParam = null;
|
|
|
|
return true;
|
|
};
|
|
|
|
function constructLength(arr, len) {
|
|
if (len < 0x80) {
|
|
arr.push(len);
|
|
return;
|
|
}
|
|
var octets = 1 + (Math.log(len) / Math.LN2 >>> 3);
|
|
arr.push(octets | 0x80);
|
|
while (--octets) {
|
|
arr.push((len >>> (octets << 3)) & 0xff);
|
|
}
|
|
arr.push(len);
|
|
}
|
|
|
|
Signature.prototype.toDER = function toDER(enc) {
|
|
var r = this.r.toArray();
|
|
var s = this.s.toArray();
|
|
|
|
// Pad values
|
|
if (r[0] & 0x80)
|
|
r = [ 0 ].concat(r);
|
|
// Pad values
|
|
if (s[0] & 0x80)
|
|
s = [ 0 ].concat(s);
|
|
|
|
r = rmPadding(r);
|
|
s = rmPadding(s);
|
|
|
|
while (!s[0] && !(s[1] & 0x80)) {
|
|
s = s.slice(1);
|
|
}
|
|
var arr = [ 0x02 ];
|
|
constructLength(arr, r.length);
|
|
arr = arr.concat(r);
|
|
arr.push(0x02);
|
|
constructLength(arr, s.length);
|
|
var backHalf = arr.concat(s);
|
|
var res = [ 0x30 ];
|
|
constructLength(res, backHalf.length);
|
|
res = res.concat(backHalf);
|
|
return utils.encode(res, enc);
|
|
};
|
|
|
|
},{"../utils":81,"bn.js":16}],77:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var hash = require('hash.js');
|
|
var curves = require('../curves');
|
|
var utils = require('../utils');
|
|
var assert = utils.assert;
|
|
var parseBytes = utils.parseBytes;
|
|
var KeyPair = require('./key');
|
|
var Signature = require('./signature');
|
|
|
|
function EDDSA(curve) {
|
|
assert(curve === 'ed25519', 'only tested with ed25519 so far');
|
|
|
|
if (!(this instanceof EDDSA))
|
|
return new EDDSA(curve);
|
|
|
|
var curve = curves[curve].curve;
|
|
this.curve = curve;
|
|
this.g = curve.g;
|
|
this.g.precompute(curve.n.bitLength() + 1);
|
|
|
|
this.pointClass = curve.point().constructor;
|
|
this.encodingLength = Math.ceil(curve.n.bitLength() / 8);
|
|
this.hash = hash.sha512;
|
|
}
|
|
|
|
module.exports = EDDSA;
|
|
|
|
/**
|
|
* @param {Array|String} message - message bytes
|
|
* @param {Array|String|KeyPair} secret - secret bytes or a keypair
|
|
* @returns {Signature} - signature
|
|
*/
|
|
EDDSA.prototype.sign = function sign(message, secret) {
|
|
message = parseBytes(message);
|
|
var key = this.keyFromSecret(secret);
|
|
var r = this.hashInt(key.messagePrefix(), message);
|
|
var R = this.g.mul(r);
|
|
var Rencoded = this.encodePoint(R);
|
|
var s_ = this.hashInt(Rencoded, key.pubBytes(), message)
|
|
.mul(key.priv());
|
|
var S = r.add(s_).umod(this.curve.n);
|
|
return this.makeSignature({ R: R, S: S, Rencoded: Rencoded });
|
|
};
|
|
|
|
/**
|
|
* @param {Array} message - message bytes
|
|
* @param {Array|String|Signature} sig - sig bytes
|
|
* @param {Array|String|Point|KeyPair} pub - public key
|
|
* @returns {Boolean} - true if public key matches sig of message
|
|
*/
|
|
EDDSA.prototype.verify = function verify(message, sig, pub) {
|
|
message = parseBytes(message);
|
|
sig = this.makeSignature(sig);
|
|
var key = this.keyFromPublic(pub);
|
|
var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message);
|
|
var SG = this.g.mul(sig.S());
|
|
var RplusAh = sig.R().add(key.pub().mul(h));
|
|
return RplusAh.eq(SG);
|
|
};
|
|
|
|
EDDSA.prototype.hashInt = function hashInt() {
|
|
var hash = this.hash();
|
|
for (var i = 0; i < arguments.length; i++)
|
|
hash.update(arguments[i]);
|
|
return utils.intFromLE(hash.digest()).umod(this.curve.n);
|
|
};
|
|
|
|
EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) {
|
|
return KeyPair.fromPublic(this, pub);
|
|
};
|
|
|
|
EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) {
|
|
return KeyPair.fromSecret(this, secret);
|
|
};
|
|
|
|
EDDSA.prototype.makeSignature = function makeSignature(sig) {
|
|
if (sig instanceof Signature)
|
|
return sig;
|
|
return new Signature(this, sig);
|
|
};
|
|
|
|
/**
|
|
* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2
|
|
*
|
|
* EDDSA defines methods for encoding and decoding points and integers. These are
|
|
* helper convenience methods, that pass along to utility functions implied
|
|
* parameters.
|
|
*
|
|
*/
|
|
EDDSA.prototype.encodePoint = function encodePoint(point) {
|
|
var enc = point.getY().toArray('le', this.encodingLength);
|
|
enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0;
|
|
return enc;
|
|
};
|
|
|
|
EDDSA.prototype.decodePoint = function decodePoint(bytes) {
|
|
bytes = utils.parseBytes(bytes);
|
|
|
|
var lastIx = bytes.length - 1;
|
|
var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80);
|
|
var xIsOdd = (bytes[lastIx] & 0x80) !== 0;
|
|
|
|
var y = utils.intFromLE(normed);
|
|
return this.curve.pointFromY(y, xIsOdd);
|
|
};
|
|
|
|
EDDSA.prototype.encodeInt = function encodeInt(num) {
|
|
return num.toArray('le', this.encodingLength);
|
|
};
|
|
|
|
EDDSA.prototype.decodeInt = function decodeInt(bytes) {
|
|
return utils.intFromLE(bytes);
|
|
};
|
|
|
|
EDDSA.prototype.isPoint = function isPoint(val) {
|
|
return val instanceof this.pointClass;
|
|
};
|
|
|
|
},{"../curves":73,"../utils":81,"./key":78,"./signature":79,"hash.js":86}],78:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var assert = utils.assert;
|
|
var parseBytes = utils.parseBytes;
|
|
var cachedProperty = utils.cachedProperty;
|
|
|
|
/**
|
|
* @param {EDDSA} eddsa - instance
|
|
* @param {Object} params - public/private key parameters
|
|
*
|
|
* @param {Array<Byte>} [params.secret] - secret seed bytes
|
|
* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)
|
|
* @param {Array<Byte>} [params.pub] - public key point encoded as bytes
|
|
*
|
|
*/
|
|
function KeyPair(eddsa, params) {
|
|
this.eddsa = eddsa;
|
|
this._secret = parseBytes(params.secret);
|
|
if (eddsa.isPoint(params.pub))
|
|
this._pub = params.pub;
|
|
else
|
|
this._pubBytes = parseBytes(params.pub);
|
|
}
|
|
|
|
KeyPair.fromPublic = function fromPublic(eddsa, pub) {
|
|
if (pub instanceof KeyPair)
|
|
return pub;
|
|
return new KeyPair(eddsa, { pub: pub });
|
|
};
|
|
|
|
KeyPair.fromSecret = function fromSecret(eddsa, secret) {
|
|
if (secret instanceof KeyPair)
|
|
return secret;
|
|
return new KeyPair(eddsa, { secret: secret });
|
|
};
|
|
|
|
KeyPair.prototype.secret = function secret() {
|
|
return this._secret;
|
|
};
|
|
|
|
cachedProperty(KeyPair, 'pubBytes', function pubBytes() {
|
|
return this.eddsa.encodePoint(this.pub());
|
|
});
|
|
|
|
cachedProperty(KeyPair, 'pub', function pub() {
|
|
if (this._pubBytes)
|
|
return this.eddsa.decodePoint(this._pubBytes);
|
|
return this.eddsa.g.mul(this.priv());
|
|
});
|
|
|
|
cachedProperty(KeyPair, 'privBytes', function privBytes() {
|
|
var eddsa = this.eddsa;
|
|
var hash = this.hash();
|
|
var lastIx = eddsa.encodingLength - 1;
|
|
|
|
var a = hash.slice(0, eddsa.encodingLength);
|
|
a[0] &= 248;
|
|
a[lastIx] &= 127;
|
|
a[lastIx] |= 64;
|
|
|
|
return a;
|
|
});
|
|
|
|
cachedProperty(KeyPair, 'priv', function priv() {
|
|
return this.eddsa.decodeInt(this.privBytes());
|
|
});
|
|
|
|
cachedProperty(KeyPair, 'hash', function hash() {
|
|
return this.eddsa.hash().update(this.secret()).digest();
|
|
});
|
|
|
|
cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() {
|
|
return this.hash().slice(this.eddsa.encodingLength);
|
|
});
|
|
|
|
KeyPair.prototype.sign = function sign(message) {
|
|
assert(this._secret, 'KeyPair can only verify');
|
|
return this.eddsa.sign(message, this);
|
|
};
|
|
|
|
KeyPair.prototype.verify = function verify(message, sig) {
|
|
return this.eddsa.verify(message, sig, this);
|
|
};
|
|
|
|
KeyPair.prototype.getSecret = function getSecret(enc) {
|
|
assert(this._secret, 'KeyPair is public only');
|
|
return utils.encode(this.secret(), enc);
|
|
};
|
|
|
|
KeyPair.prototype.getPublic = function getPublic(enc) {
|
|
return utils.encode(this.pubBytes(), enc);
|
|
};
|
|
|
|
module.exports = KeyPair;
|
|
|
|
},{"../utils":81}],79:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var BN = require('bn.js');
|
|
var utils = require('../utils');
|
|
var assert = utils.assert;
|
|
var cachedProperty = utils.cachedProperty;
|
|
var parseBytes = utils.parseBytes;
|
|
|
|
/**
|
|
* @param {EDDSA} eddsa - eddsa instance
|
|
* @param {Array<Bytes>|Object} sig -
|
|
* @param {Array<Bytes>|Point} [sig.R] - R point as Point or bytes
|
|
* @param {Array<Bytes>|bn} [sig.S] - S scalar as bn or bytes
|
|
* @param {Array<Bytes>} [sig.Rencoded] - R point encoded
|
|
* @param {Array<Bytes>} [sig.Sencoded] - S scalar encoded
|
|
*/
|
|
function Signature(eddsa, sig) {
|
|
this.eddsa = eddsa;
|
|
|
|
if (typeof sig !== 'object')
|
|
sig = parseBytes(sig);
|
|
|
|
if (Array.isArray(sig)) {
|
|
sig = {
|
|
R: sig.slice(0, eddsa.encodingLength),
|
|
S: sig.slice(eddsa.encodingLength)
|
|
};
|
|
}
|
|
|
|
assert(sig.R && sig.S, 'Signature without R or S');
|
|
|
|
if (eddsa.isPoint(sig.R))
|
|
this._R = sig.R;
|
|
if (sig.S instanceof BN)
|
|
this._S = sig.S;
|
|
|
|
this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded;
|
|
this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded;
|
|
}
|
|
|
|
cachedProperty(Signature, 'S', function S() {
|
|
return this.eddsa.decodeInt(this.Sencoded());
|
|
});
|
|
|
|
cachedProperty(Signature, 'R', function R() {
|
|
return this.eddsa.decodePoint(this.Rencoded());
|
|
});
|
|
|
|
cachedProperty(Signature, 'Rencoded', function Rencoded() {
|
|
return this.eddsa.encodePoint(this.R());
|
|
});
|
|
|
|
cachedProperty(Signature, 'Sencoded', function Sencoded() {
|
|
return this.eddsa.encodeInt(this.S());
|
|
});
|
|
|
|
Signature.prototype.toBytes = function toBytes() {
|
|
return this.Rencoded().concat(this.Sencoded());
|
|
};
|
|
|
|
Signature.prototype.toHex = function toHex() {
|
|
return utils.encode(this.toBytes(), 'hex').toUpperCase();
|
|
};
|
|
|
|
module.exports = Signature;
|
|
|
|
},{"../utils":81,"bn.js":16}],80:[function(require,module,exports){
|
|
module.exports = {
|
|
doubles: {
|
|
step: 4,
|
|
points: [
|
|
[
|
|
'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',
|
|
'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'
|
|
],
|
|
[
|
|
'8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',
|
|
'11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'
|
|
],
|
|
[
|
|
'175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',
|
|
'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'
|
|
],
|
|
[
|
|
'363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640',
|
|
'4e273adfc732221953b445397f3363145b9a89008199ecb62003c7f3bee9de9'
|
|
],
|
|
[
|
|
'8b4b5f165df3c2be8c6244b5b745638843e4a781a15bcd1b69f79a55dffdf80c',
|
|
'4aad0a6f68d308b4b3fbd7813ab0da04f9e336546162ee56b3eff0c65fd4fd36'
|
|
],
|
|
[
|
|
'723cbaa6e5db996d6bf771c00bd548c7b700dbffa6c0e77bcb6115925232fcda',
|
|
'96e867b5595cc498a921137488824d6e2660a0653779494801dc069d9eb39f5f'
|
|
],
|
|
[
|
|
'eebfa4d493bebf98ba5feec812c2d3b50947961237a919839a533eca0e7dd7fa',
|
|
'5d9a8ca3970ef0f269ee7edaf178089d9ae4cdc3a711f712ddfd4fdae1de8999'
|
|
],
|
|
[
|
|
'100f44da696e71672791d0a09b7bde459f1215a29b3c03bfefd7835b39a48db0',
|
|
'cdd9e13192a00b772ec8f3300c090666b7ff4a18ff5195ac0fbd5cd62bc65a09'
|
|
],
|
|
[
|
|
'e1031be262c7ed1b1dc9227a4a04c017a77f8d4464f3b3852c8acde6e534fd2d',
|
|
'9d7061928940405e6bb6a4176597535af292dd419e1ced79a44f18f29456a00d'
|
|
],
|
|
[
|
|
'feea6cae46d55b530ac2839f143bd7ec5cf8b266a41d6af52d5e688d9094696d',
|
|
'e57c6b6c97dce1bab06e4e12bf3ecd5c981c8957cc41442d3155debf18090088'
|
|
],
|
|
[
|
|
'da67a91d91049cdcb367be4be6ffca3cfeed657d808583de33fa978bc1ec6cb1',
|
|
'9bacaa35481642bc41f463f7ec9780e5dec7adc508f740a17e9ea8e27a68be1d'
|
|
],
|
|
[
|
|
'53904faa0b334cdda6e000935ef22151ec08d0f7bb11069f57545ccc1a37b7c0',
|
|
'5bc087d0bc80106d88c9eccac20d3c1c13999981e14434699dcb096b022771c8'
|
|
],
|
|
[
|
|
'8e7bcd0bd35983a7719cca7764ca906779b53a043a9b8bcaeff959f43ad86047',
|
|
'10b7770b2a3da4b3940310420ca9514579e88e2e47fd68b3ea10047e8460372a'
|
|
],
|
|
[
|
|
'385eed34c1cdff21e6d0818689b81bde71a7f4f18397e6690a841e1599c43862',
|
|
'283bebc3e8ea23f56701de19e9ebf4576b304eec2086dc8cc0458fe5542e5453'
|
|
],
|
|
[
|
|
'6f9d9b803ecf191637c73a4413dfa180fddf84a5947fbc9c606ed86c3fac3a7',
|
|
'7c80c68e603059ba69b8e2a30e45c4d47ea4dd2f5c281002d86890603a842160'
|
|
],
|
|
[
|
|
'3322d401243c4e2582a2147c104d6ecbf774d163db0f5e5313b7e0e742d0e6bd',
|
|
'56e70797e9664ef5bfb019bc4ddaf9b72805f63ea2873af624f3a2e96c28b2a0'
|
|
],
|
|
[
|
|
'85672c7d2de0b7da2bd1770d89665868741b3f9af7643397721d74d28134ab83',
|
|
'7c481b9b5b43b2eb6374049bfa62c2e5e77f17fcc5298f44c8e3094f790313a6'
|
|
],
|
|
[
|
|
'948bf809b1988a46b06c9f1919413b10f9226c60f668832ffd959af60c82a0a',
|
|
'53a562856dcb6646dc6b74c5d1c3418c6d4dff08c97cd2bed4cb7f88d8c8e589'
|
|
],
|
|
[
|
|
'6260ce7f461801c34f067ce0f02873a8f1b0e44dfc69752accecd819f38fd8e8',
|
|
'bc2da82b6fa5b571a7f09049776a1ef7ecd292238051c198c1a84e95b2b4ae17'
|
|
],
|
|
[
|
|
'e5037de0afc1d8d43d8348414bbf4103043ec8f575bfdc432953cc8d2037fa2d',
|
|
'4571534baa94d3b5f9f98d09fb990bddbd5f5b03ec481f10e0e5dc841d755bda'
|
|
],
|
|
[
|
|
'e06372b0f4a207adf5ea905e8f1771b4e7e8dbd1c6a6c5b725866a0ae4fce725',
|
|
'7a908974bce18cfe12a27bb2ad5a488cd7484a7787104870b27034f94eee31dd'
|
|
],
|
|
[
|
|
'213c7a715cd5d45358d0bbf9dc0ce02204b10bdde2a3f58540ad6908d0559754',
|
|
'4b6dad0b5ae462507013ad06245ba190bb4850f5f36a7eeddff2c27534b458f2'
|
|
],
|
|
[
|
|
'4e7c272a7af4b34e8dbb9352a5419a87e2838c70adc62cddf0cc3a3b08fbd53c',
|
|
'17749c766c9d0b18e16fd09f6def681b530b9614bff7dd33e0b3941817dcaae6'
|
|
],
|
|
[
|
|
'fea74e3dbe778b1b10f238ad61686aa5c76e3db2be43057632427e2840fb27b6',
|
|
'6e0568db9b0b13297cf674deccb6af93126b596b973f7b77701d3db7f23cb96f'
|
|
],
|
|
[
|
|
'76e64113f677cf0e10a2570d599968d31544e179b760432952c02a4417bdde39',
|
|
'c90ddf8dee4e95cf577066d70681f0d35e2a33d2b56d2032b4b1752d1901ac01'
|
|
],
|
|
[
|
|
'c738c56b03b2abe1e8281baa743f8f9a8f7cc643df26cbee3ab150242bcbb891',
|
|
'893fb578951ad2537f718f2eacbfbbbb82314eef7880cfe917e735d9699a84c3'
|
|
],
|
|
[
|
|
'd895626548b65b81e264c7637c972877d1d72e5f3a925014372e9f6588f6c14b',
|
|
'febfaa38f2bc7eae728ec60818c340eb03428d632bb067e179363ed75d7d991f'
|
|
],
|
|
[
|
|
'b8da94032a957518eb0f6433571e8761ceffc73693e84edd49150a564f676e03',
|
|
'2804dfa44805a1e4d7c99cc9762808b092cc584d95ff3b511488e4e74efdf6e7'
|
|
],
|
|
[
|
|
'e80fea14441fb33a7d8adab9475d7fab2019effb5156a792f1a11778e3c0df5d',
|
|
'eed1de7f638e00771e89768ca3ca94472d155e80af322ea9fcb4291b6ac9ec78'
|
|
],
|
|
[
|
|
'a301697bdfcd704313ba48e51d567543f2a182031efd6915ddc07bbcc4e16070',
|
|
'7370f91cfb67e4f5081809fa25d40f9b1735dbf7c0a11a130c0d1a041e177ea1'
|
|
],
|
|
[
|
|
'90ad85b389d6b936463f9d0512678de208cc330b11307fffab7ac63e3fb04ed4',
|
|
'e507a3620a38261affdcbd9427222b839aefabe1582894d991d4d48cb6ef150'
|
|
],
|
|
[
|
|
'8f68b9d2f63b5f339239c1ad981f162ee88c5678723ea3351b7b444c9ec4c0da',
|
|
'662a9f2dba063986de1d90c2b6be215dbbea2cfe95510bfdf23cbf79501fff82'
|
|
],
|
|
[
|
|
'e4f3fb0176af85d65ff99ff9198c36091f48e86503681e3e6686fd5053231e11',
|
|
'1e63633ad0ef4f1c1661a6d0ea02b7286cc7e74ec951d1c9822c38576feb73bc'
|
|
],
|
|
[
|
|
'8c00fa9b18ebf331eb961537a45a4266c7034f2f0d4e1d0716fb6eae20eae29e',
|
|
'efa47267fea521a1a9dc343a3736c974c2fadafa81e36c54e7d2a4c66702414b'
|
|
],
|
|
[
|
|
'e7a26ce69dd4829f3e10cec0a9e98ed3143d084f308b92c0997fddfc60cb3e41',
|
|
'2a758e300fa7984b471b006a1aafbb18d0a6b2c0420e83e20e8a9421cf2cfd51'
|
|
],
|
|
[
|
|
'b6459e0ee3662ec8d23540c223bcbdc571cbcb967d79424f3cf29eb3de6b80ef',
|
|
'67c876d06f3e06de1dadf16e5661db3c4b3ae6d48e35b2ff30bf0b61a71ba45'
|
|
],
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'93144423ace3451ed29e0fb9ac2af211cb6e84a601df5993c419859fff5df04a',
|
|
'7c10dfb164c3425f5c71a3f9d7992038f1065224f72bb9d1d902a6d13037b47c'
|
|
],
|
|
[
|
|
'b015f8044f5fcbdcf21ca26d6c34fb8197829205c7b7d2a7cb66418c157b112c',
|
|
'ab8c1e086d04e813744a655b2df8d5f83b3cdc6faa3088c1d3aea1454e3a1d5f'
|
|
],
|
|
[
|
|
'd5e9e1da649d97d89e4868117a465a3a4f8a18de57a140d36b3f2af341a21b52',
|
|
'4cb04437f391ed73111a13cc1d4dd0db1693465c2240480d8955e8592f27447a'
|
|
],
|
|
[
|
|
'd3ae41047dd7ca065dbf8ed77b992439983005cd72e16d6f996a5316d36966bb',
|
|
'bd1aeb21ad22ebb22a10f0303417c6d964f8cdd7df0aca614b10dc14d125ac46'
|
|
],
|
|
[
|
|
'463e2763d885f958fc66cdd22800f0a487197d0a82e377b49f80af87c897b065',
|
|
'bfefacdb0e5d0fd7df3a311a94de062b26b80c61fbc97508b79992671ef7ca7f'
|
|
],
|
|
[
|
|
'7985fdfd127c0567c6f53ec1bb63ec3158e597c40bfe747c83cddfc910641917',
|
|
'603c12daf3d9862ef2b25fe1de289aed24ed291e0ec6708703a5bd567f32ed03'
|
|
],
|
|
[
|
|
'74a1ad6b5f76e39db2dd249410eac7f99e74c59cb83d2d0ed5ff1543da7703e9',
|
|
'cc6157ef18c9c63cd6193d83631bbea0093e0968942e8c33d5737fd790e0db08'
|
|
],
|
|
[
|
|
'30682a50703375f602d416664ba19b7fc9bab42c72747463a71d0896b22f6da3',
|
|
'553e04f6b018b4fa6c8f39e7f311d3176290d0e0f19ca73f17714d9977a22ff8'
|
|
],
|
|
[
|
|
'9e2158f0d7c0d5f26c3791efefa79597654e7a2b2464f52b1ee6c1347769ef57',
|
|
'712fcdd1b9053f09003a3481fa7762e9ffd7c8ef35a38509e2fbf2629008373'
|
|
],
|
|
[
|
|
'176e26989a43c9cfeba4029c202538c28172e566e3c4fce7322857f3be327d66',
|
|
'ed8cc9d04b29eb877d270b4878dc43c19aefd31f4eee09ee7b47834c1fa4b1c3'
|
|
],
|
|
[
|
|
'75d46efea3771e6e68abb89a13ad747ecf1892393dfc4f1b7004788c50374da8',
|
|
'9852390a99507679fd0b86fd2b39a868d7efc22151346e1a3ca4726586a6bed8'
|
|
],
|
|
[
|
|
'809a20c67d64900ffb698c4c825f6d5f2310fb0451c869345b7319f645605721',
|
|
'9e994980d9917e22b76b061927fa04143d096ccc54963e6a5ebfa5f3f8e286c1'
|
|
],
|
|
[
|
|
'1b38903a43f7f114ed4500b4eac7083fdefece1cf29c63528d563446f972c180',
|
|
'4036edc931a60ae889353f77fd53de4a2708b26b6f5da72ad3394119daf408f9'
|
|
]
|
|
]
|
|
}
|
|
};
|
|
|
|
},{}],81:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = exports;
|
|
var BN = require('bn.js');
|
|
var minAssert = require('minimalistic-assert');
|
|
var minUtils = require('minimalistic-crypto-utils');
|
|
|
|
utils.assert = minAssert;
|
|
utils.toArray = minUtils.toArray;
|
|
utils.zero2 = minUtils.zero2;
|
|
utils.toHex = minUtils.toHex;
|
|
utils.encode = minUtils.encode;
|
|
|
|
// Represent num in a w-NAF form
|
|
function getNAF(num, w, bits) {
|
|
var naf = new Array(Math.max(num.bitLength(), bits) + 1);
|
|
naf.fill(0);
|
|
|
|
var ws = 1 << (w + 1);
|
|
var k = num.clone();
|
|
|
|
for (var i = 0; i < naf.length; i++) {
|
|
var z;
|
|
var mod = k.andln(ws - 1);
|
|
if (k.isOdd()) {
|
|
if (mod > (ws >> 1) - 1)
|
|
z = (ws >> 1) - mod;
|
|
else
|
|
z = mod;
|
|
k.isubn(z);
|
|
} else {
|
|
z = 0;
|
|
}
|
|
|
|
naf[i] = z;
|
|
k.iushrn(1);
|
|
}
|
|
|
|
return naf;
|
|
}
|
|
utils.getNAF = getNAF;
|
|
|
|
// Represent k1, k2 in a Joint Sparse Form
|
|
function getJSF(k1, k2) {
|
|
var jsf = [
|
|
[],
|
|
[]
|
|
];
|
|
|
|
k1 = k1.clone();
|
|
k2 = k2.clone();
|
|
var d1 = 0;
|
|
var d2 = 0;
|
|
while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {
|
|
|
|
// First phase
|
|
var m14 = (k1.andln(3) + d1) & 3;
|
|
var m24 = (k2.andln(3) + d2) & 3;
|
|
if (m14 === 3)
|
|
m14 = -1;
|
|
if (m24 === 3)
|
|
m24 = -1;
|
|
var u1;
|
|
if ((m14 & 1) === 0) {
|
|
u1 = 0;
|
|
} else {
|
|
var m8 = (k1.andln(7) + d1) & 7;
|
|
if ((m8 === 3 || m8 === 5) && m24 === 2)
|
|
u1 = -m14;
|
|
else
|
|
u1 = m14;
|
|
}
|
|
jsf[0].push(u1);
|
|
|
|
var u2;
|
|
if ((m24 & 1) === 0) {
|
|
u2 = 0;
|
|
} else {
|
|
var m8 = (k2.andln(7) + d2) & 7;
|
|
if ((m8 === 3 || m8 === 5) && m14 === 2)
|
|
u2 = -m24;
|
|
else
|
|
u2 = m24;
|
|
}
|
|
jsf[1].push(u2);
|
|
|
|
// Second phase
|
|
if (2 * d1 === u1 + 1)
|
|
d1 = 1 - d1;
|
|
if (2 * d2 === u2 + 1)
|
|
d2 = 1 - d2;
|
|
k1.iushrn(1);
|
|
k2.iushrn(1);
|
|
}
|
|
|
|
return jsf;
|
|
}
|
|
utils.getJSF = getJSF;
|
|
|
|
function cachedProperty(obj, name, computer) {
|
|
var key = '_' + name;
|
|
obj.prototype[name] = function cachedProperty() {
|
|
return this[key] !== undefined ? this[key] :
|
|
this[key] = computer.call(this);
|
|
};
|
|
}
|
|
utils.cachedProperty = cachedProperty;
|
|
|
|
function parseBytes(bytes) {
|
|
return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :
|
|
bytes;
|
|
}
|
|
utils.parseBytes = parseBytes;
|
|
|
|
function intFromLE(bytes) {
|
|
return new BN(bytes, 'hex', 'le');
|
|
}
|
|
utils.intFromLE = intFromLE;
|
|
|
|
|
|
},{"bn.js":16,"minimalistic-assert":104,"minimalistic-crypto-utils":105}],82:[function(require,module,exports){
|
|
module.exports={
|
|
"name": "elliptic",
|
|
"version": "6.5.2",
|
|
"description": "EC cryptography",
|
|
"main": "lib/elliptic.js",
|
|
"files": [
|
|
"lib"
|
|
],
|
|
"scripts": {
|
|
"jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
|
|
"jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
|
|
"lint": "npm run jscs && npm run jshint",
|
|
"unit": "istanbul test _mocha --reporter=spec test/index.js",
|
|
"test": "npm run lint && npm run unit",
|
|
"version": "grunt dist && git add dist/"
|
|
},
|
|
"repository": {
|
|
"type": "git",
|
|
"url": "git@github.com:indutny/elliptic"
|
|
},
|
|
"keywords": [
|
|
"EC",
|
|
"Elliptic",
|
|
"curve",
|
|
"Cryptography"
|
|
],
|
|
"author": "Fedor Indutny <fedor@indutny.com>",
|
|
"license": "MIT",
|
|
"bugs": {
|
|
"url": "https://github.com/indutny/elliptic/issues"
|
|
},
|
|
"homepage": "https://github.com/indutny/elliptic",
|
|
"devDependencies": {
|
|
"brfs": "^1.4.3",
|
|
"coveralls": "^3.0.8",
|
|
"grunt": "^1.0.4",
|
|
"grunt-browserify": "^5.0.0",
|
|
"grunt-cli": "^1.2.0",
|
|
"grunt-contrib-connect": "^1.0.0",
|
|
"grunt-contrib-copy": "^1.0.0",
|
|
"grunt-contrib-uglify": "^1.0.1",
|
|
"grunt-mocha-istanbul": "^3.0.1",
|
|
"grunt-saucelabs": "^9.0.1",
|
|
"istanbul": "^0.4.2",
|
|
"jscs": "^3.0.7",
|
|
"jshint": "^2.10.3",
|
|
"mocha": "^6.2.2"
|
|
},
|
|
"dependencies": {
|
|
"bn.js": "^4.4.0",
|
|
"brorand": "^1.0.1",
|
|
"hash.js": "^1.0.0",
|
|
"hmac-drbg": "^1.0.0",
|
|
"inherits": "^2.0.1",
|
|
"minimalistic-assert": "^1.0.0",
|
|
"minimalistic-crypto-utils": "^1.0.0"
|
|
}
|
|
}
|
|
|
|
},{}],83:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
var objectCreate = Object.create || objectCreatePolyfill
|
|
var objectKeys = Object.keys || objectKeysPolyfill
|
|
var bind = Function.prototype.bind || functionBindPolyfill
|
|
|
|
function EventEmitter() {
|
|
if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
|
|
this._events = objectCreate(null);
|
|
this._eventsCount = 0;
|
|
}
|
|
|
|
this._maxListeners = this._maxListeners || undefined;
|
|
}
|
|
module.exports = EventEmitter;
|
|
|
|
// Backwards-compat with node 0.10.x
|
|
EventEmitter.EventEmitter = EventEmitter;
|
|
|
|
EventEmitter.prototype._events = undefined;
|
|
EventEmitter.prototype._maxListeners = undefined;
|
|
|
|
// By default EventEmitters will print a warning if more than 10 listeners are
|
|
// added to it. This is a useful default which helps finding memory leaks.
|
|
var defaultMaxListeners = 10;
|
|
|
|
var hasDefineProperty;
|
|
try {
|
|
var o = {};
|
|
if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
|
|
hasDefineProperty = o.x === 0;
|
|
} catch (err) { hasDefineProperty = false }
|
|
if (hasDefineProperty) {
|
|
Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
|
|
enumerable: true,
|
|
get: function() {
|
|
return defaultMaxListeners;
|
|
},
|
|
set: function(arg) {
|
|
// check whether the input is a positive number (whose value is zero or
|
|
// greater and not a NaN).
|
|
if (typeof arg !== 'number' || arg < 0 || arg !== arg)
|
|
throw new TypeError('"defaultMaxListeners" must be a positive number');
|
|
defaultMaxListeners = arg;
|
|
}
|
|
});
|
|
} else {
|
|
EventEmitter.defaultMaxListeners = defaultMaxListeners;
|
|
}
|
|
|
|
// Obviously not all Emitters should be limited to 10. This function allows
|
|
// that to be increased. Set to zero for unlimited.
|
|
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
|
|
if (typeof n !== 'number' || n < 0 || isNaN(n))
|
|
throw new TypeError('"n" argument must be a positive number');
|
|
this._maxListeners = n;
|
|
return this;
|
|
};
|
|
|
|
function $getMaxListeners(that) {
|
|
if (that._maxListeners === undefined)
|
|
return EventEmitter.defaultMaxListeners;
|
|
return that._maxListeners;
|
|
}
|
|
|
|
EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
|
|
return $getMaxListeners(this);
|
|
};
|
|
|
|
// These standalone emit* functions are used to optimize calling of event
|
|
// handlers for fast cases because emit() itself often has a variable number of
|
|
// arguments and can be deoptimized because of that. These functions always have
|
|
// the same number of arguments and thus do not get deoptimized, so the code
|
|
// inside them can execute faster.
|
|
function emitNone(handler, isFn, self) {
|
|
if (isFn)
|
|
handler.call(self);
|
|
else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
listeners[i].call(self);
|
|
}
|
|
}
|
|
function emitOne(handler, isFn, self, arg1) {
|
|
if (isFn)
|
|
handler.call(self, arg1);
|
|
else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
listeners[i].call(self, arg1);
|
|
}
|
|
}
|
|
function emitTwo(handler, isFn, self, arg1, arg2) {
|
|
if (isFn)
|
|
handler.call(self, arg1, arg2);
|
|
else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
listeners[i].call(self, arg1, arg2);
|
|
}
|
|
}
|
|
function emitThree(handler, isFn, self, arg1, arg2, arg3) {
|
|
if (isFn)
|
|
handler.call(self, arg1, arg2, arg3);
|
|
else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
listeners[i].call(self, arg1, arg2, arg3);
|
|
}
|
|
}
|
|
|
|
function emitMany(handler, isFn, self, args) {
|
|
if (isFn)
|
|
handler.apply(self, args);
|
|
else {
|
|
var len = handler.length;
|
|
var listeners = arrayClone(handler, len);
|
|
for (var i = 0; i < len; ++i)
|
|
listeners[i].apply(self, args);
|
|
}
|
|
}
|
|
|
|
EventEmitter.prototype.emit = function emit(type) {
|
|
var er, handler, len, args, i, events;
|
|
var doError = (type === 'error');
|
|
|
|
events = this._events;
|
|
if (events)
|
|
doError = (doError && events.error == null);
|
|
else if (!doError)
|
|
return false;
|
|
|
|
// If there is no 'error' event listener then throw.
|
|
if (doError) {
|
|
if (arguments.length > 1)
|
|
er = arguments[1];
|
|
if (er instanceof Error) {
|
|
throw er; // Unhandled 'error' event
|
|
} else {
|
|
// At least give some kind of context to the user
|
|
var err = new Error('Unhandled "error" event. (' + er + ')');
|
|
err.context = er;
|
|
throw err;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
handler = events[type];
|
|
|
|
if (!handler)
|
|
return false;
|
|
|
|
var isFn = typeof handler === 'function';
|
|
len = arguments.length;
|
|
switch (len) {
|
|
// fast cases
|
|
case 1:
|
|
emitNone(handler, isFn, this);
|
|
break;
|
|
case 2:
|
|
emitOne(handler, isFn, this, arguments[1]);
|
|
break;
|
|
case 3:
|
|
emitTwo(handler, isFn, this, arguments[1], arguments[2]);
|
|
break;
|
|
case 4:
|
|
emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
|
|
break;
|
|
// slower
|
|
default:
|
|
args = new Array(len - 1);
|
|
for (i = 1; i < len; i++)
|
|
args[i - 1] = arguments[i];
|
|
emitMany(handler, isFn, this, args);
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
function _addListener(target, type, listener, prepend) {
|
|
var m;
|
|
var events;
|
|
var existing;
|
|
|
|
if (typeof listener !== 'function')
|
|
throw new TypeError('"listener" argument must be a function');
|
|
|
|
events = target._events;
|
|
if (!events) {
|
|
events = target._events = objectCreate(null);
|
|
target._eventsCount = 0;
|
|
} else {
|
|
// To avoid recursion in the case that type === "newListener"! Before
|
|
// adding it to the listeners, first emit "newListener".
|
|
if (events.newListener) {
|
|
target.emit('newListener', type,
|
|
listener.listener ? listener.listener : listener);
|
|
|
|
// Re-assign `events` because a newListener handler could have caused the
|
|
// this._events to be assigned to a new object
|
|
events = target._events;
|
|
}
|
|
existing = events[type];
|
|
}
|
|
|
|
if (!existing) {
|
|
// Optimize the case of one listener. Don't need the extra array object.
|
|
existing = events[type] = listener;
|
|
++target._eventsCount;
|
|
} else {
|
|
if (typeof existing === 'function') {
|
|
// Adding the second element, need to change to array.
|
|
existing = events[type] =
|
|
prepend ? [listener, existing] : [existing, listener];
|
|
} else {
|
|
// If we've already got an array, just append.
|
|
if (prepend) {
|
|
existing.unshift(listener);
|
|
} else {
|
|
existing.push(listener);
|
|
}
|
|
}
|
|
|
|
// Check for listener leak
|
|
if (!existing.warned) {
|
|
m = $getMaxListeners(target);
|
|
if (m && m > 0 && existing.length > m) {
|
|
existing.warned = true;
|
|
var w = new Error('Possible EventEmitter memory leak detected. ' +
|
|
existing.length + ' "' + String(type) + '" listeners ' +
|
|
'added. Use emitter.setMaxListeners() to ' +
|
|
'increase limit.');
|
|
w.name = 'MaxListenersExceededWarning';
|
|
w.emitter = target;
|
|
w.type = type;
|
|
w.count = existing.length;
|
|
if (typeof console === 'object' && console.warn) {
|
|
console.warn('%s: %s', w.name, w.message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
EventEmitter.prototype.addListener = function addListener(type, listener) {
|
|
return _addListener(this, type, listener, false);
|
|
};
|
|
|
|
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
|
|
|
|
EventEmitter.prototype.prependListener =
|
|
function prependListener(type, listener) {
|
|
return _addListener(this, type, listener, true);
|
|
};
|
|
|
|
function onceWrapper() {
|
|
if (!this.fired) {
|
|
this.target.removeListener(this.type, this.wrapFn);
|
|
this.fired = true;
|
|
switch (arguments.length) {
|
|
case 0:
|
|
return this.listener.call(this.target);
|
|
case 1:
|
|
return this.listener.call(this.target, arguments[0]);
|
|
case 2:
|
|
return this.listener.call(this.target, arguments[0], arguments[1]);
|
|
case 3:
|
|
return this.listener.call(this.target, arguments[0], arguments[1],
|
|
arguments[2]);
|
|
default:
|
|
var args = new Array(arguments.length);
|
|
for (var i = 0; i < args.length; ++i)
|
|
args[i] = arguments[i];
|
|
this.listener.apply(this.target, args);
|
|
}
|
|
}
|
|
}
|
|
|
|
function _onceWrap(target, type, listener) {
|
|
var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
|
|
var wrapped = bind.call(onceWrapper, state);
|
|
wrapped.listener = listener;
|
|
state.wrapFn = wrapped;
|
|
return wrapped;
|
|
}
|
|
|
|
EventEmitter.prototype.once = function once(type, listener) {
|
|
if (typeof listener !== 'function')
|
|
throw new TypeError('"listener" argument must be a function');
|
|
this.on(type, _onceWrap(this, type, listener));
|
|
return this;
|
|
};
|
|
|
|
EventEmitter.prototype.prependOnceListener =
|
|
function prependOnceListener(type, listener) {
|
|
if (typeof listener !== 'function')
|
|
throw new TypeError('"listener" argument must be a function');
|
|
this.prependListener(type, _onceWrap(this, type, listener));
|
|
return this;
|
|
};
|
|
|
|
// Emits a 'removeListener' event if and only if the listener was removed.
|
|
EventEmitter.prototype.removeListener =
|
|
function removeListener(type, listener) {
|
|
var list, events, position, i, originalListener;
|
|
|
|
if (typeof listener !== 'function')
|
|
throw new TypeError('"listener" argument must be a function');
|
|
|
|
events = this._events;
|
|
if (!events)
|
|
return this;
|
|
|
|
list = events[type];
|
|
if (!list)
|
|
return this;
|
|
|
|
if (list === listener || list.listener === listener) {
|
|
if (--this._eventsCount === 0)
|
|
this._events = objectCreate(null);
|
|
else {
|
|
delete events[type];
|
|
if (events.removeListener)
|
|
this.emit('removeListener', type, list.listener || listener);
|
|
}
|
|
} else if (typeof list !== 'function') {
|
|
position = -1;
|
|
|
|
for (i = list.length - 1; i >= 0; i--) {
|
|
if (list[i] === listener || list[i].listener === listener) {
|
|
originalListener = list[i].listener;
|
|
position = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (position < 0)
|
|
return this;
|
|
|
|
if (position === 0)
|
|
list.shift();
|
|
else
|
|
spliceOne(list, position);
|
|
|
|
if (list.length === 1)
|
|
events[type] = list[0];
|
|
|
|
if (events.removeListener)
|
|
this.emit('removeListener', type, originalListener || listener);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
EventEmitter.prototype.removeAllListeners =
|
|
function removeAllListeners(type) {
|
|
var listeners, events, i;
|
|
|
|
events = this._events;
|
|
if (!events)
|
|
return this;
|
|
|
|
// not listening for removeListener, no need to emit
|
|
if (!events.removeListener) {
|
|
if (arguments.length === 0) {
|
|
this._events = objectCreate(null);
|
|
this._eventsCount = 0;
|
|
} else if (events[type]) {
|
|
if (--this._eventsCount === 0)
|
|
this._events = objectCreate(null);
|
|
else
|
|
delete events[type];
|
|
}
|
|
return this;
|
|
}
|
|
|
|
// emit removeListener for all listeners on all events
|
|
if (arguments.length === 0) {
|
|
var keys = objectKeys(events);
|
|
var key;
|
|
for (i = 0; i < keys.length; ++i) {
|
|
key = keys[i];
|
|
if (key === 'removeListener') continue;
|
|
this.removeAllListeners(key);
|
|
}
|
|
this.removeAllListeners('removeListener');
|
|
this._events = objectCreate(null);
|
|
this._eventsCount = 0;
|
|
return this;
|
|
}
|
|
|
|
listeners = events[type];
|
|
|
|
if (typeof listeners === 'function') {
|
|
this.removeListener(type, listeners);
|
|
} else if (listeners) {
|
|
// LIFO order
|
|
for (i = listeners.length - 1; i >= 0; i--) {
|
|
this.removeListener(type, listeners[i]);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
function _listeners(target, type, unwrap) {
|
|
var events = target._events;
|
|
|
|
if (!events)
|
|
return [];
|
|
|
|
var evlistener = events[type];
|
|
if (!evlistener)
|
|
return [];
|
|
|
|
if (typeof evlistener === 'function')
|
|
return unwrap ? [evlistener.listener || evlistener] : [evlistener];
|
|
|
|
return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
|
|
}
|
|
|
|
EventEmitter.prototype.listeners = function listeners(type) {
|
|
return _listeners(this, type, true);
|
|
};
|
|
|
|
EventEmitter.prototype.rawListeners = function rawListeners(type) {
|
|
return _listeners(this, type, false);
|
|
};
|
|
|
|
EventEmitter.listenerCount = function(emitter, type) {
|
|
if (typeof emitter.listenerCount === 'function') {
|
|
return emitter.listenerCount(type);
|
|
} else {
|
|
return listenerCount.call(emitter, type);
|
|
}
|
|
};
|
|
|
|
EventEmitter.prototype.listenerCount = listenerCount;
|
|
function listenerCount(type) {
|
|
var events = this._events;
|
|
|
|
if (events) {
|
|
var evlistener = events[type];
|
|
|
|
if (typeof evlistener === 'function') {
|
|
return 1;
|
|
} else if (evlistener) {
|
|
return evlistener.length;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
EventEmitter.prototype.eventNames = function eventNames() {
|
|
return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
|
|
};
|
|
|
|
// About 1.5x faster than the two-arg version of Array#splice().
|
|
function spliceOne(list, index) {
|
|
for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
|
|
list[i] = list[k];
|
|
list.pop();
|
|
}
|
|
|
|
function arrayClone(arr, n) {
|
|
var copy = new Array(n);
|
|
for (var i = 0; i < n; ++i)
|
|
copy[i] = arr[i];
|
|
return copy;
|
|
}
|
|
|
|
function unwrapListeners(arr) {
|
|
var ret = new Array(arr.length);
|
|
for (var i = 0; i < ret.length; ++i) {
|
|
ret[i] = arr[i].listener || arr[i];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
function objectCreatePolyfill(proto) {
|
|
var F = function() {};
|
|
F.prototype = proto;
|
|
return new F;
|
|
}
|
|
function objectKeysPolyfill(obj) {
|
|
var keys = [];
|
|
for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
|
|
keys.push(k);
|
|
}
|
|
return k;
|
|
}
|
|
function functionBindPolyfill(context) {
|
|
var fn = this;
|
|
return function () {
|
|
return fn.apply(context, arguments);
|
|
};
|
|
}
|
|
|
|
},{}],84:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var MD5 = require('md5.js')
|
|
|
|
/* eslint-disable camelcase */
|
|
function EVP_BytesToKey (password, salt, keyBits, ivLen) {
|
|
if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary')
|
|
if (salt) {
|
|
if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary')
|
|
if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length')
|
|
}
|
|
|
|
var keyLen = keyBits / 8
|
|
var key = Buffer.alloc(keyLen)
|
|
var iv = Buffer.alloc(ivLen || 0)
|
|
var tmp = Buffer.alloc(0)
|
|
|
|
while (keyLen > 0 || ivLen > 0) {
|
|
var hash = new MD5()
|
|
hash.update(tmp)
|
|
hash.update(password)
|
|
if (salt) hash.update(salt)
|
|
tmp = hash.digest()
|
|
|
|
var used = 0
|
|
|
|
if (keyLen > 0) {
|
|
var keyStart = key.length - keyLen
|
|
used = Math.min(keyLen, tmp.length)
|
|
tmp.copy(key, keyStart, 0, used)
|
|
keyLen -= used
|
|
}
|
|
|
|
if (used < tmp.length && ivLen > 0) {
|
|
var ivStart = iv.length - ivLen
|
|
var length = Math.min(ivLen, tmp.length - used)
|
|
tmp.copy(iv, ivStart, used, used + length)
|
|
ivLen -= length
|
|
}
|
|
}
|
|
|
|
tmp.fill(0)
|
|
return { key: key, iv: iv }
|
|
}
|
|
|
|
module.exports = EVP_BytesToKey
|
|
|
|
},{"md5.js":102,"safe-buffer":144}],85:[function(require,module,exports){
|
|
'use strict'
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var Transform = require('stream').Transform
|
|
var inherits = require('inherits')
|
|
|
|
function throwIfNotStringOrBuffer (val, prefix) {
|
|
if (!Buffer.isBuffer(val) && typeof val !== 'string') {
|
|
throw new TypeError(prefix + ' must be a string or a buffer')
|
|
}
|
|
}
|
|
|
|
function HashBase (blockSize) {
|
|
Transform.call(this)
|
|
|
|
this._block = Buffer.allocUnsafe(blockSize)
|
|
this._blockSize = blockSize
|
|
this._blockOffset = 0
|
|
this._length = [0, 0, 0, 0]
|
|
|
|
this._finalized = false
|
|
}
|
|
|
|
inherits(HashBase, Transform)
|
|
|
|
HashBase.prototype._transform = function (chunk, encoding, callback) {
|
|
var error = null
|
|
try {
|
|
this.update(chunk, encoding)
|
|
} catch (err) {
|
|
error = err
|
|
}
|
|
|
|
callback(error)
|
|
}
|
|
|
|
HashBase.prototype._flush = function (callback) {
|
|
var error = null
|
|
try {
|
|
this.push(this.digest())
|
|
} catch (err) {
|
|
error = err
|
|
}
|
|
|
|
callback(error)
|
|
}
|
|
|
|
HashBase.prototype.update = function (data, encoding) {
|
|
throwIfNotStringOrBuffer(data, 'Data')
|
|
if (this._finalized) throw new Error('Digest already called')
|
|
if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)
|
|
|
|
// consume data
|
|
var block = this._block
|
|
var offset = 0
|
|
while (this._blockOffset + data.length - offset >= this._blockSize) {
|
|
for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
|
|
this._update()
|
|
this._blockOffset = 0
|
|
}
|
|
while (offset < data.length) block[this._blockOffset++] = data[offset++]
|
|
|
|
// update length
|
|
for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
|
|
this._length[j] += carry
|
|
carry = (this._length[j] / 0x0100000000) | 0
|
|
if (carry > 0) this._length[j] -= 0x0100000000 * carry
|
|
}
|
|
|
|
return this
|
|
}
|
|
|
|
HashBase.prototype._update = function () {
|
|
throw new Error('_update is not implemented')
|
|
}
|
|
|
|
HashBase.prototype.digest = function (encoding) {
|
|
if (this._finalized) throw new Error('Digest already called')
|
|
this._finalized = true
|
|
|
|
var digest = this._digest()
|
|
if (encoding !== undefined) digest = digest.toString(encoding)
|
|
|
|
// reset state
|
|
this._block.fill(0)
|
|
this._blockOffset = 0
|
|
for (var i = 0; i < 4; ++i) this._length[i] = 0
|
|
|
|
return digest
|
|
}
|
|
|
|
HashBase.prototype._digest = function () {
|
|
throw new Error('_digest is not implemented')
|
|
}
|
|
|
|
module.exports = HashBase
|
|
|
|
},{"inherits":100,"safe-buffer":144,"stream":154}],86:[function(require,module,exports){
|
|
var hash = exports;
|
|
|
|
hash.utils = require('./hash/utils');
|
|
hash.common = require('./hash/common');
|
|
hash.sha = require('./hash/sha');
|
|
hash.ripemd = require('./hash/ripemd');
|
|
hash.hmac = require('./hash/hmac');
|
|
|
|
// Proxy hash functions to the main object
|
|
hash.sha1 = hash.sha.sha1;
|
|
hash.sha256 = hash.sha.sha256;
|
|
hash.sha224 = hash.sha.sha224;
|
|
hash.sha384 = hash.sha.sha384;
|
|
hash.sha512 = hash.sha.sha512;
|
|
hash.ripemd160 = hash.ripemd.ripemd160;
|
|
|
|
},{"./hash/common":87,"./hash/hmac":88,"./hash/ripemd":89,"./hash/sha":90,"./hash/utils":97}],87:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('./utils');
|
|
var assert = require('minimalistic-assert');
|
|
|
|
function BlockHash() {
|
|
this.pending = null;
|
|
this.pendingTotal = 0;
|
|
this.blockSize = this.constructor.blockSize;
|
|
this.outSize = this.constructor.outSize;
|
|
this.hmacStrength = this.constructor.hmacStrength;
|
|
this.padLength = this.constructor.padLength / 8;
|
|
this.endian = 'big';
|
|
|
|
this._delta8 = this.blockSize / 8;
|
|
this._delta32 = this.blockSize / 32;
|
|
}
|
|
exports.BlockHash = BlockHash;
|
|
|
|
BlockHash.prototype.update = function update(msg, enc) {
|
|
// Convert message to array, pad it, and join into 32bit blocks
|
|
msg = utils.toArray(msg, enc);
|
|
if (!this.pending)
|
|
this.pending = msg;
|
|
else
|
|
this.pending = this.pending.concat(msg);
|
|
this.pendingTotal += msg.length;
|
|
|
|
// Enough data, try updating
|
|
if (this.pending.length >= this._delta8) {
|
|
msg = this.pending;
|
|
|
|
// Process pending data in blocks
|
|
var r = msg.length % this._delta8;
|
|
this.pending = msg.slice(msg.length - r, msg.length);
|
|
if (this.pending.length === 0)
|
|
this.pending = null;
|
|
|
|
msg = utils.join32(msg, 0, msg.length - r, this.endian);
|
|
for (var i = 0; i < msg.length; i += this._delta32)
|
|
this._update(msg, i, i + this._delta32);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
BlockHash.prototype.digest = function digest(enc) {
|
|
this.update(this._pad());
|
|
assert(this.pending === null);
|
|
|
|
return this._digest(enc);
|
|
};
|
|
|
|
BlockHash.prototype._pad = function pad() {
|
|
var len = this.pendingTotal;
|
|
var bytes = this._delta8;
|
|
var k = bytes - ((len + this.padLength) % bytes);
|
|
var res = new Array(k + this.padLength);
|
|
res[0] = 0x80;
|
|
for (var i = 1; i < k; i++)
|
|
res[i] = 0;
|
|
|
|
// Append length
|
|
len <<= 3;
|
|
if (this.endian === 'big') {
|
|
for (var t = 8; t < this.padLength; t++)
|
|
res[i++] = 0;
|
|
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
res[i++] = (len >>> 24) & 0xff;
|
|
res[i++] = (len >>> 16) & 0xff;
|
|
res[i++] = (len >>> 8) & 0xff;
|
|
res[i++] = len & 0xff;
|
|
} else {
|
|
res[i++] = len & 0xff;
|
|
res[i++] = (len >>> 8) & 0xff;
|
|
res[i++] = (len >>> 16) & 0xff;
|
|
res[i++] = (len >>> 24) & 0xff;
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
res[i++] = 0;
|
|
|
|
for (t = 8; t < this.padLength; t++)
|
|
res[i++] = 0;
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
},{"./utils":97,"minimalistic-assert":104}],88:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('./utils');
|
|
var assert = require('minimalistic-assert');
|
|
|
|
function Hmac(hash, key, enc) {
|
|
if (!(this instanceof Hmac))
|
|
return new Hmac(hash, key, enc);
|
|
this.Hash = hash;
|
|
this.blockSize = hash.blockSize / 8;
|
|
this.outSize = hash.outSize / 8;
|
|
this.inner = null;
|
|
this.outer = null;
|
|
|
|
this._init(utils.toArray(key, enc));
|
|
}
|
|
module.exports = Hmac;
|
|
|
|
Hmac.prototype._init = function init(key) {
|
|
// Shorten key, if needed
|
|
if (key.length > this.blockSize)
|
|
key = new this.Hash().update(key).digest();
|
|
assert(key.length <= this.blockSize);
|
|
|
|
// Add padding to key
|
|
for (var i = key.length; i < this.blockSize; i++)
|
|
key.push(0);
|
|
|
|
for (i = 0; i < key.length; i++)
|
|
key[i] ^= 0x36;
|
|
this.inner = new this.Hash().update(key);
|
|
|
|
// 0x36 ^ 0x5c = 0x6a
|
|
for (i = 0; i < key.length; i++)
|
|
key[i] ^= 0x6a;
|
|
this.outer = new this.Hash().update(key);
|
|
};
|
|
|
|
Hmac.prototype.update = function update(msg, enc) {
|
|
this.inner.update(msg, enc);
|
|
return this;
|
|
};
|
|
|
|
Hmac.prototype.digest = function digest(enc) {
|
|
this.outer.update(this.inner.digest());
|
|
return this.outer.digest(enc);
|
|
};
|
|
|
|
},{"./utils":97,"minimalistic-assert":104}],89:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('./utils');
|
|
var common = require('./common');
|
|
|
|
var rotl32 = utils.rotl32;
|
|
var sum32 = utils.sum32;
|
|
var sum32_3 = utils.sum32_3;
|
|
var sum32_4 = utils.sum32_4;
|
|
var BlockHash = common.BlockHash;
|
|
|
|
function RIPEMD160() {
|
|
if (!(this instanceof RIPEMD160))
|
|
return new RIPEMD160();
|
|
|
|
BlockHash.call(this);
|
|
|
|
this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
|
|
this.endian = 'little';
|
|
}
|
|
utils.inherits(RIPEMD160, BlockHash);
|
|
exports.ripemd160 = RIPEMD160;
|
|
|
|
RIPEMD160.blockSize = 512;
|
|
RIPEMD160.outSize = 160;
|
|
RIPEMD160.hmacStrength = 192;
|
|
RIPEMD160.padLength = 64;
|
|
|
|
RIPEMD160.prototype._update = function update(msg, start) {
|
|
var A = this.h[0];
|
|
var B = this.h[1];
|
|
var C = this.h[2];
|
|
var D = this.h[3];
|
|
var E = this.h[4];
|
|
var Ah = A;
|
|
var Bh = B;
|
|
var Ch = C;
|
|
var Dh = D;
|
|
var Eh = E;
|
|
for (var j = 0; j < 80; j++) {
|
|
var T = sum32(
|
|
rotl32(
|
|
sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
|
|
s[j]),
|
|
E);
|
|
A = E;
|
|
E = D;
|
|
D = rotl32(C, 10);
|
|
C = B;
|
|
B = T;
|
|
T = sum32(
|
|
rotl32(
|
|
sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
|
|
sh[j]),
|
|
Eh);
|
|
Ah = Eh;
|
|
Eh = Dh;
|
|
Dh = rotl32(Ch, 10);
|
|
Ch = Bh;
|
|
Bh = T;
|
|
}
|
|
T = sum32_3(this.h[1], C, Dh);
|
|
this.h[1] = sum32_3(this.h[2], D, Eh);
|
|
this.h[2] = sum32_3(this.h[3], E, Ah);
|
|
this.h[3] = sum32_3(this.h[4], A, Bh);
|
|
this.h[4] = sum32_3(this.h[0], B, Ch);
|
|
this.h[0] = T;
|
|
};
|
|
|
|
RIPEMD160.prototype._digest = function digest(enc) {
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h, 'little');
|
|
else
|
|
return utils.split32(this.h, 'little');
|
|
};
|
|
|
|
function f(j, x, y, z) {
|
|
if (j <= 15)
|
|
return x ^ y ^ z;
|
|
else if (j <= 31)
|
|
return (x & y) | ((~x) & z);
|
|
else if (j <= 47)
|
|
return (x | (~y)) ^ z;
|
|
else if (j <= 63)
|
|
return (x & z) | (y & (~z));
|
|
else
|
|
return x ^ (y | (~z));
|
|
}
|
|
|
|
function K(j) {
|
|
if (j <= 15)
|
|
return 0x00000000;
|
|
else if (j <= 31)
|
|
return 0x5a827999;
|
|
else if (j <= 47)
|
|
return 0x6ed9eba1;
|
|
else if (j <= 63)
|
|
return 0x8f1bbcdc;
|
|
else
|
|
return 0xa953fd4e;
|
|
}
|
|
|
|
function Kh(j) {
|
|
if (j <= 15)
|
|
return 0x50a28be6;
|
|
else if (j <= 31)
|
|
return 0x5c4dd124;
|
|
else if (j <= 47)
|
|
return 0x6d703ef3;
|
|
else if (j <= 63)
|
|
return 0x7a6d76e9;
|
|
else
|
|
return 0x00000000;
|
|
}
|
|
|
|
var r = [
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
|
|
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
|
|
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
|
|
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
|
|
];
|
|
|
|
var rh = [
|
|
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
|
|
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
|
|
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
|
|
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
|
|
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
|
|
];
|
|
|
|
var s = [
|
|
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
|
|
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
|
|
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
|
|
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
|
|
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
|
|
];
|
|
|
|
var sh = [
|
|
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
|
|
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
|
|
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
|
|
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
|
|
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
|
|
];
|
|
|
|
},{"./common":87,"./utils":97}],90:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
exports.sha1 = require('./sha/1');
|
|
exports.sha224 = require('./sha/224');
|
|
exports.sha256 = require('./sha/256');
|
|
exports.sha384 = require('./sha/384');
|
|
exports.sha512 = require('./sha/512');
|
|
|
|
},{"./sha/1":91,"./sha/224":92,"./sha/256":93,"./sha/384":94,"./sha/512":95}],91:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var common = require('../common');
|
|
var shaCommon = require('./common');
|
|
|
|
var rotl32 = utils.rotl32;
|
|
var sum32 = utils.sum32;
|
|
var sum32_5 = utils.sum32_5;
|
|
var ft_1 = shaCommon.ft_1;
|
|
var BlockHash = common.BlockHash;
|
|
|
|
var sha1_K = [
|
|
0x5A827999, 0x6ED9EBA1,
|
|
0x8F1BBCDC, 0xCA62C1D6
|
|
];
|
|
|
|
function SHA1() {
|
|
if (!(this instanceof SHA1))
|
|
return new SHA1();
|
|
|
|
BlockHash.call(this);
|
|
this.h = [
|
|
0x67452301, 0xefcdab89, 0x98badcfe,
|
|
0x10325476, 0xc3d2e1f0 ];
|
|
this.W = new Array(80);
|
|
}
|
|
|
|
utils.inherits(SHA1, BlockHash);
|
|
module.exports = SHA1;
|
|
|
|
SHA1.blockSize = 512;
|
|
SHA1.outSize = 160;
|
|
SHA1.hmacStrength = 80;
|
|
SHA1.padLength = 64;
|
|
|
|
SHA1.prototype._update = function _update(msg, start) {
|
|
var W = this.W;
|
|
|
|
for (var i = 0; i < 16; i++)
|
|
W[i] = msg[start + i];
|
|
|
|
for(; i < W.length; i++)
|
|
W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
|
|
|
|
var a = this.h[0];
|
|
var b = this.h[1];
|
|
var c = this.h[2];
|
|
var d = this.h[3];
|
|
var e = this.h[4];
|
|
|
|
for (i = 0; i < W.length; i++) {
|
|
var s = ~~(i / 20);
|
|
var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
|
|
e = d;
|
|
d = c;
|
|
c = rotl32(b, 30);
|
|
b = a;
|
|
a = t;
|
|
}
|
|
|
|
this.h[0] = sum32(this.h[0], a);
|
|
this.h[1] = sum32(this.h[1], b);
|
|
this.h[2] = sum32(this.h[2], c);
|
|
this.h[3] = sum32(this.h[3], d);
|
|
this.h[4] = sum32(this.h[4], e);
|
|
};
|
|
|
|
SHA1.prototype._digest = function digest(enc) {
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h, 'big');
|
|
else
|
|
return utils.split32(this.h, 'big');
|
|
};
|
|
|
|
},{"../common":87,"../utils":97,"./common":96}],92:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var SHA256 = require('./256');
|
|
|
|
function SHA224() {
|
|
if (!(this instanceof SHA224))
|
|
return new SHA224();
|
|
|
|
SHA256.call(this);
|
|
this.h = [
|
|
0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
|
|
0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
|
|
}
|
|
utils.inherits(SHA224, SHA256);
|
|
module.exports = SHA224;
|
|
|
|
SHA224.blockSize = 512;
|
|
SHA224.outSize = 224;
|
|
SHA224.hmacStrength = 192;
|
|
SHA224.padLength = 64;
|
|
|
|
SHA224.prototype._digest = function digest(enc) {
|
|
// Just truncate output
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h.slice(0, 7), 'big');
|
|
else
|
|
return utils.split32(this.h.slice(0, 7), 'big');
|
|
};
|
|
|
|
|
|
},{"../utils":97,"./256":93}],93:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var common = require('../common');
|
|
var shaCommon = require('./common');
|
|
var assert = require('minimalistic-assert');
|
|
|
|
var sum32 = utils.sum32;
|
|
var sum32_4 = utils.sum32_4;
|
|
var sum32_5 = utils.sum32_5;
|
|
var ch32 = shaCommon.ch32;
|
|
var maj32 = shaCommon.maj32;
|
|
var s0_256 = shaCommon.s0_256;
|
|
var s1_256 = shaCommon.s1_256;
|
|
var g0_256 = shaCommon.g0_256;
|
|
var g1_256 = shaCommon.g1_256;
|
|
|
|
var BlockHash = common.BlockHash;
|
|
|
|
var sha256_K = [
|
|
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
|
|
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
|
|
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
|
|
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
|
|
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
|
|
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
|
|
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
|
|
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
|
|
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
|
|
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
|
|
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
|
|
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
|
|
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
|
|
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
|
|
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
|
|
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
|
|
];
|
|
|
|
function SHA256() {
|
|
if (!(this instanceof SHA256))
|
|
return new SHA256();
|
|
|
|
BlockHash.call(this);
|
|
this.h = [
|
|
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
|
|
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
|
|
];
|
|
this.k = sha256_K;
|
|
this.W = new Array(64);
|
|
}
|
|
utils.inherits(SHA256, BlockHash);
|
|
module.exports = SHA256;
|
|
|
|
SHA256.blockSize = 512;
|
|
SHA256.outSize = 256;
|
|
SHA256.hmacStrength = 192;
|
|
SHA256.padLength = 64;
|
|
|
|
SHA256.prototype._update = function _update(msg, start) {
|
|
var W = this.W;
|
|
|
|
for (var i = 0; i < 16; i++)
|
|
W[i] = msg[start + i];
|
|
for (; i < W.length; i++)
|
|
W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);
|
|
|
|
var a = this.h[0];
|
|
var b = this.h[1];
|
|
var c = this.h[2];
|
|
var d = this.h[3];
|
|
var e = this.h[4];
|
|
var f = this.h[5];
|
|
var g = this.h[6];
|
|
var h = this.h[7];
|
|
|
|
assert(this.k.length === W.length);
|
|
for (i = 0; i < W.length; i++) {
|
|
var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
|
|
var T2 = sum32(s0_256(a), maj32(a, b, c));
|
|
h = g;
|
|
g = f;
|
|
f = e;
|
|
e = sum32(d, T1);
|
|
d = c;
|
|
c = b;
|
|
b = a;
|
|
a = sum32(T1, T2);
|
|
}
|
|
|
|
this.h[0] = sum32(this.h[0], a);
|
|
this.h[1] = sum32(this.h[1], b);
|
|
this.h[2] = sum32(this.h[2], c);
|
|
this.h[3] = sum32(this.h[3], d);
|
|
this.h[4] = sum32(this.h[4], e);
|
|
this.h[5] = sum32(this.h[5], f);
|
|
this.h[6] = sum32(this.h[6], g);
|
|
this.h[7] = sum32(this.h[7], h);
|
|
};
|
|
|
|
SHA256.prototype._digest = function digest(enc) {
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h, 'big');
|
|
else
|
|
return utils.split32(this.h, 'big');
|
|
};
|
|
|
|
},{"../common":87,"../utils":97,"./common":96,"minimalistic-assert":104}],94:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
|
|
var SHA512 = require('./512');
|
|
|
|
function SHA384() {
|
|
if (!(this instanceof SHA384))
|
|
return new SHA384();
|
|
|
|
SHA512.call(this);
|
|
this.h = [
|
|
0xcbbb9d5d, 0xc1059ed8,
|
|
0x629a292a, 0x367cd507,
|
|
0x9159015a, 0x3070dd17,
|
|
0x152fecd8, 0xf70e5939,
|
|
0x67332667, 0xffc00b31,
|
|
0x8eb44a87, 0x68581511,
|
|
0xdb0c2e0d, 0x64f98fa7,
|
|
0x47b5481d, 0xbefa4fa4 ];
|
|
}
|
|
utils.inherits(SHA384, SHA512);
|
|
module.exports = SHA384;
|
|
|
|
SHA384.blockSize = 1024;
|
|
SHA384.outSize = 384;
|
|
SHA384.hmacStrength = 192;
|
|
SHA384.padLength = 128;
|
|
|
|
SHA384.prototype._digest = function digest(enc) {
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h.slice(0, 12), 'big');
|
|
else
|
|
return utils.split32(this.h.slice(0, 12), 'big');
|
|
};
|
|
|
|
},{"../utils":97,"./512":95}],95:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var common = require('../common');
|
|
var assert = require('minimalistic-assert');
|
|
|
|
var rotr64_hi = utils.rotr64_hi;
|
|
var rotr64_lo = utils.rotr64_lo;
|
|
var shr64_hi = utils.shr64_hi;
|
|
var shr64_lo = utils.shr64_lo;
|
|
var sum64 = utils.sum64;
|
|
var sum64_hi = utils.sum64_hi;
|
|
var sum64_lo = utils.sum64_lo;
|
|
var sum64_4_hi = utils.sum64_4_hi;
|
|
var sum64_4_lo = utils.sum64_4_lo;
|
|
var sum64_5_hi = utils.sum64_5_hi;
|
|
var sum64_5_lo = utils.sum64_5_lo;
|
|
|
|
var BlockHash = common.BlockHash;
|
|
|
|
var sha512_K = [
|
|
0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
|
|
0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
|
|
0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
|
|
0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
|
|
0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
|
|
0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
|
|
0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
|
|
0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
|
|
0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
|
|
0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
|
|
0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
|
|
0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
|
|
0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
|
|
0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
|
|
0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
|
|
0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
|
|
0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
|
|
0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
|
|
0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
|
|
0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
|
|
0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
|
|
0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
|
|
0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
|
|
0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
|
|
0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
|
|
0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
|
|
0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
|
|
0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
|
|
0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
|
|
0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
|
|
0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
|
|
0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
|
|
0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
|
|
0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
|
|
0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
|
|
0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
|
|
0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
|
|
0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
|
|
0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
|
|
0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
|
|
];
|
|
|
|
function SHA512() {
|
|
if (!(this instanceof SHA512))
|
|
return new SHA512();
|
|
|
|
BlockHash.call(this);
|
|
this.h = [
|
|
0x6a09e667, 0xf3bcc908,
|
|
0xbb67ae85, 0x84caa73b,
|
|
0x3c6ef372, 0xfe94f82b,
|
|
0xa54ff53a, 0x5f1d36f1,
|
|
0x510e527f, 0xade682d1,
|
|
0x9b05688c, 0x2b3e6c1f,
|
|
0x1f83d9ab, 0xfb41bd6b,
|
|
0x5be0cd19, 0x137e2179 ];
|
|
this.k = sha512_K;
|
|
this.W = new Array(160);
|
|
}
|
|
utils.inherits(SHA512, BlockHash);
|
|
module.exports = SHA512;
|
|
|
|
SHA512.blockSize = 1024;
|
|
SHA512.outSize = 512;
|
|
SHA512.hmacStrength = 192;
|
|
SHA512.padLength = 128;
|
|
|
|
SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
|
|
var W = this.W;
|
|
|
|
// 32 x 32bit words
|
|
for (var i = 0; i < 32; i++)
|
|
W[i] = msg[start + i];
|
|
for (; i < W.length; i += 2) {
|
|
var c0_hi = g1_512_hi(W[i - 4], W[i - 3]); // i - 2
|
|
var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
|
|
var c1_hi = W[i - 14]; // i - 7
|
|
var c1_lo = W[i - 13];
|
|
var c2_hi = g0_512_hi(W[i - 30], W[i - 29]); // i - 15
|
|
var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
|
|
var c3_hi = W[i - 32]; // i - 16
|
|
var c3_lo = W[i - 31];
|
|
|
|
W[i] = sum64_4_hi(
|
|
c0_hi, c0_lo,
|
|
c1_hi, c1_lo,
|
|
c2_hi, c2_lo,
|
|
c3_hi, c3_lo);
|
|
W[i + 1] = sum64_4_lo(
|
|
c0_hi, c0_lo,
|
|
c1_hi, c1_lo,
|
|
c2_hi, c2_lo,
|
|
c3_hi, c3_lo);
|
|
}
|
|
};
|
|
|
|
SHA512.prototype._update = function _update(msg, start) {
|
|
this._prepareBlock(msg, start);
|
|
|
|
var W = this.W;
|
|
|
|
var ah = this.h[0];
|
|
var al = this.h[1];
|
|
var bh = this.h[2];
|
|
var bl = this.h[3];
|
|
var ch = this.h[4];
|
|
var cl = this.h[5];
|
|
var dh = this.h[6];
|
|
var dl = this.h[7];
|
|
var eh = this.h[8];
|
|
var el = this.h[9];
|
|
var fh = this.h[10];
|
|
var fl = this.h[11];
|
|
var gh = this.h[12];
|
|
var gl = this.h[13];
|
|
var hh = this.h[14];
|
|
var hl = this.h[15];
|
|
|
|
assert(this.k.length === W.length);
|
|
for (var i = 0; i < W.length; i += 2) {
|
|
var c0_hi = hh;
|
|
var c0_lo = hl;
|
|
var c1_hi = s1_512_hi(eh, el);
|
|
var c1_lo = s1_512_lo(eh, el);
|
|
var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
|
|
var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
|
|
var c3_hi = this.k[i];
|
|
var c3_lo = this.k[i + 1];
|
|
var c4_hi = W[i];
|
|
var c4_lo = W[i + 1];
|
|
|
|
var T1_hi = sum64_5_hi(
|
|
c0_hi, c0_lo,
|
|
c1_hi, c1_lo,
|
|
c2_hi, c2_lo,
|
|
c3_hi, c3_lo,
|
|
c4_hi, c4_lo);
|
|
var T1_lo = sum64_5_lo(
|
|
c0_hi, c0_lo,
|
|
c1_hi, c1_lo,
|
|
c2_hi, c2_lo,
|
|
c3_hi, c3_lo,
|
|
c4_hi, c4_lo);
|
|
|
|
c0_hi = s0_512_hi(ah, al);
|
|
c0_lo = s0_512_lo(ah, al);
|
|
c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
|
|
c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
|
|
|
|
var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
|
|
var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
|
|
|
|
hh = gh;
|
|
hl = gl;
|
|
|
|
gh = fh;
|
|
gl = fl;
|
|
|
|
fh = eh;
|
|
fl = el;
|
|
|
|
eh = sum64_hi(dh, dl, T1_hi, T1_lo);
|
|
el = sum64_lo(dl, dl, T1_hi, T1_lo);
|
|
|
|
dh = ch;
|
|
dl = cl;
|
|
|
|
ch = bh;
|
|
cl = bl;
|
|
|
|
bh = ah;
|
|
bl = al;
|
|
|
|
ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
|
|
al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
|
|
}
|
|
|
|
sum64(this.h, 0, ah, al);
|
|
sum64(this.h, 2, bh, bl);
|
|
sum64(this.h, 4, ch, cl);
|
|
sum64(this.h, 6, dh, dl);
|
|
sum64(this.h, 8, eh, el);
|
|
sum64(this.h, 10, fh, fl);
|
|
sum64(this.h, 12, gh, gl);
|
|
sum64(this.h, 14, hh, hl);
|
|
};
|
|
|
|
SHA512.prototype._digest = function digest(enc) {
|
|
if (enc === 'hex')
|
|
return utils.toHex32(this.h, 'big');
|
|
else
|
|
return utils.split32(this.h, 'big');
|
|
};
|
|
|
|
function ch64_hi(xh, xl, yh, yl, zh) {
|
|
var r = (xh & yh) ^ ((~xh) & zh);
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function ch64_lo(xh, xl, yh, yl, zh, zl) {
|
|
var r = (xl & yl) ^ ((~xl) & zl);
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function maj64_hi(xh, xl, yh, yl, zh) {
|
|
var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function maj64_lo(xh, xl, yh, yl, zh, zl) {
|
|
var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function s0_512_hi(xh, xl) {
|
|
var c0_hi = rotr64_hi(xh, xl, 28);
|
|
var c1_hi = rotr64_hi(xl, xh, 2); // 34
|
|
var c2_hi = rotr64_hi(xl, xh, 7); // 39
|
|
|
|
var r = c0_hi ^ c1_hi ^ c2_hi;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function s0_512_lo(xh, xl) {
|
|
var c0_lo = rotr64_lo(xh, xl, 28);
|
|
var c1_lo = rotr64_lo(xl, xh, 2); // 34
|
|
var c2_lo = rotr64_lo(xl, xh, 7); // 39
|
|
|
|
var r = c0_lo ^ c1_lo ^ c2_lo;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function s1_512_hi(xh, xl) {
|
|
var c0_hi = rotr64_hi(xh, xl, 14);
|
|
var c1_hi = rotr64_hi(xh, xl, 18);
|
|
var c2_hi = rotr64_hi(xl, xh, 9); // 41
|
|
|
|
var r = c0_hi ^ c1_hi ^ c2_hi;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function s1_512_lo(xh, xl) {
|
|
var c0_lo = rotr64_lo(xh, xl, 14);
|
|
var c1_lo = rotr64_lo(xh, xl, 18);
|
|
var c2_lo = rotr64_lo(xl, xh, 9); // 41
|
|
|
|
var r = c0_lo ^ c1_lo ^ c2_lo;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function g0_512_hi(xh, xl) {
|
|
var c0_hi = rotr64_hi(xh, xl, 1);
|
|
var c1_hi = rotr64_hi(xh, xl, 8);
|
|
var c2_hi = shr64_hi(xh, xl, 7);
|
|
|
|
var r = c0_hi ^ c1_hi ^ c2_hi;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function g0_512_lo(xh, xl) {
|
|
var c0_lo = rotr64_lo(xh, xl, 1);
|
|
var c1_lo = rotr64_lo(xh, xl, 8);
|
|
var c2_lo = shr64_lo(xh, xl, 7);
|
|
|
|
var r = c0_lo ^ c1_lo ^ c2_lo;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function g1_512_hi(xh, xl) {
|
|
var c0_hi = rotr64_hi(xh, xl, 19);
|
|
var c1_hi = rotr64_hi(xl, xh, 29); // 61
|
|
var c2_hi = shr64_hi(xh, xl, 6);
|
|
|
|
var r = c0_hi ^ c1_hi ^ c2_hi;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
function g1_512_lo(xh, xl) {
|
|
var c0_lo = rotr64_lo(xh, xl, 19);
|
|
var c1_lo = rotr64_lo(xl, xh, 29); // 61
|
|
var c2_lo = shr64_lo(xh, xl, 6);
|
|
|
|
var r = c0_lo ^ c1_lo ^ c2_lo;
|
|
if (r < 0)
|
|
r += 0x100000000;
|
|
return r;
|
|
}
|
|
|
|
},{"../common":87,"../utils":97,"minimalistic-assert":104}],96:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = require('../utils');
|
|
var rotr32 = utils.rotr32;
|
|
|
|
function ft_1(s, x, y, z) {
|
|
if (s === 0)
|
|
return ch32(x, y, z);
|
|
if (s === 1 || s === 3)
|
|
return p32(x, y, z);
|
|
if (s === 2)
|
|
return maj32(x, y, z);
|
|
}
|
|
exports.ft_1 = ft_1;
|
|
|
|
function ch32(x, y, z) {
|
|
return (x & y) ^ ((~x) & z);
|
|
}
|
|
exports.ch32 = ch32;
|
|
|
|
function maj32(x, y, z) {
|
|
return (x & y) ^ (x & z) ^ (y & z);
|
|
}
|
|
exports.maj32 = maj32;
|
|
|
|
function p32(x, y, z) {
|
|
return x ^ y ^ z;
|
|
}
|
|
exports.p32 = p32;
|
|
|
|
function s0_256(x) {
|
|
return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
|
|
}
|
|
exports.s0_256 = s0_256;
|
|
|
|
function s1_256(x) {
|
|
return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
|
|
}
|
|
exports.s1_256 = s1_256;
|
|
|
|
function g0_256(x) {
|
|
return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
|
|
}
|
|
exports.g0_256 = g0_256;
|
|
|
|
function g1_256(x) {
|
|
return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
|
|
}
|
|
exports.g1_256 = g1_256;
|
|
|
|
},{"../utils":97}],97:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var assert = require('minimalistic-assert');
|
|
var inherits = require('inherits');
|
|
|
|
exports.inherits = inherits;
|
|
|
|
function isSurrogatePair(msg, i) {
|
|
if ((msg.charCodeAt(i) & 0xFC00) !== 0xD800) {
|
|
return false;
|
|
}
|
|
if (i < 0 || i + 1 >= msg.length) {
|
|
return false;
|
|
}
|
|
return (msg.charCodeAt(i + 1) & 0xFC00) === 0xDC00;
|
|
}
|
|
|
|
function toArray(msg, enc) {
|
|
if (Array.isArray(msg))
|
|
return msg.slice();
|
|
if (!msg)
|
|
return [];
|
|
var res = [];
|
|
if (typeof msg === 'string') {
|
|
if (!enc) {
|
|
// Inspired by stringToUtf8ByteArray() in closure-library by Google
|
|
// https://github.com/google/closure-library/blob/8598d87242af59aac233270742c8984e2b2bdbe0/closure/goog/crypt/crypt.js#L117-L143
|
|
// Apache License 2.0
|
|
// https://github.com/google/closure-library/blob/master/LICENSE
|
|
var p = 0;
|
|
for (var i = 0; i < msg.length; i++) {
|
|
var c = msg.charCodeAt(i);
|
|
if (c < 128) {
|
|
res[p++] = c;
|
|
} else if (c < 2048) {
|
|
res[p++] = (c >> 6) | 192;
|
|
res[p++] = (c & 63) | 128;
|
|
} else if (isSurrogatePair(msg, i)) {
|
|
c = 0x10000 + ((c & 0x03FF) << 10) + (msg.charCodeAt(++i) & 0x03FF);
|
|
res[p++] = (c >> 18) | 240;
|
|
res[p++] = ((c >> 12) & 63) | 128;
|
|
res[p++] = ((c >> 6) & 63) | 128;
|
|
res[p++] = (c & 63) | 128;
|
|
} else {
|
|
res[p++] = (c >> 12) | 224;
|
|
res[p++] = ((c >> 6) & 63) | 128;
|
|
res[p++] = (c & 63) | 128;
|
|
}
|
|
}
|
|
} else if (enc === 'hex') {
|
|
msg = msg.replace(/[^a-z0-9]+/ig, '');
|
|
if (msg.length % 2 !== 0)
|
|
msg = '0' + msg;
|
|
for (i = 0; i < msg.length; i += 2)
|
|
res.push(parseInt(msg[i] + msg[i + 1], 16));
|
|
}
|
|
} else {
|
|
for (i = 0; i < msg.length; i++)
|
|
res[i] = msg[i] | 0;
|
|
}
|
|
return res;
|
|
}
|
|
exports.toArray = toArray;
|
|
|
|
function toHex(msg) {
|
|
var res = '';
|
|
for (var i = 0; i < msg.length; i++)
|
|
res += zero2(msg[i].toString(16));
|
|
return res;
|
|
}
|
|
exports.toHex = toHex;
|
|
|
|
function htonl(w) {
|
|
var res = (w >>> 24) |
|
|
((w >>> 8) & 0xff00) |
|
|
((w << 8) & 0xff0000) |
|
|
((w & 0xff) << 24);
|
|
return res >>> 0;
|
|
}
|
|
exports.htonl = htonl;
|
|
|
|
function toHex32(msg, endian) {
|
|
var res = '';
|
|
for (var i = 0; i < msg.length; i++) {
|
|
var w = msg[i];
|
|
if (endian === 'little')
|
|
w = htonl(w);
|
|
res += zero8(w.toString(16));
|
|
}
|
|
return res;
|
|
}
|
|
exports.toHex32 = toHex32;
|
|
|
|
function zero2(word) {
|
|
if (word.length === 1)
|
|
return '0' + word;
|
|
else
|
|
return word;
|
|
}
|
|
exports.zero2 = zero2;
|
|
|
|
function zero8(word) {
|
|
if (word.length === 7)
|
|
return '0' + word;
|
|
else if (word.length === 6)
|
|
return '00' + word;
|
|
else if (word.length === 5)
|
|
return '000' + word;
|
|
else if (word.length === 4)
|
|
return '0000' + word;
|
|
else if (word.length === 3)
|
|
return '00000' + word;
|
|
else if (word.length === 2)
|
|
return '000000' + word;
|
|
else if (word.length === 1)
|
|
return '0000000' + word;
|
|
else
|
|
return word;
|
|
}
|
|
exports.zero8 = zero8;
|
|
|
|
function join32(msg, start, end, endian) {
|
|
var len = end - start;
|
|
assert(len % 4 === 0);
|
|
var res = new Array(len / 4);
|
|
for (var i = 0, k = start; i < res.length; i++, k += 4) {
|
|
var w;
|
|
if (endian === 'big')
|
|
w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
|
|
else
|
|
w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
|
|
res[i] = w >>> 0;
|
|
}
|
|
return res;
|
|
}
|
|
exports.join32 = join32;
|
|
|
|
function split32(msg, endian) {
|
|
var res = new Array(msg.length * 4);
|
|
for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
|
|
var m = msg[i];
|
|
if (endian === 'big') {
|
|
res[k] = m >>> 24;
|
|
res[k + 1] = (m >>> 16) & 0xff;
|
|
res[k + 2] = (m >>> 8) & 0xff;
|
|
res[k + 3] = m & 0xff;
|
|
} else {
|
|
res[k + 3] = m >>> 24;
|
|
res[k + 2] = (m >>> 16) & 0xff;
|
|
res[k + 1] = (m >>> 8) & 0xff;
|
|
res[k] = m & 0xff;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
exports.split32 = split32;
|
|
|
|
function rotr32(w, b) {
|
|
return (w >>> b) | (w << (32 - b));
|
|
}
|
|
exports.rotr32 = rotr32;
|
|
|
|
function rotl32(w, b) {
|
|
return (w << b) | (w >>> (32 - b));
|
|
}
|
|
exports.rotl32 = rotl32;
|
|
|
|
function sum32(a, b) {
|
|
return (a + b) >>> 0;
|
|
}
|
|
exports.sum32 = sum32;
|
|
|
|
function sum32_3(a, b, c) {
|
|
return (a + b + c) >>> 0;
|
|
}
|
|
exports.sum32_3 = sum32_3;
|
|
|
|
function sum32_4(a, b, c, d) {
|
|
return (a + b + c + d) >>> 0;
|
|
}
|
|
exports.sum32_4 = sum32_4;
|
|
|
|
function sum32_5(a, b, c, d, e) {
|
|
return (a + b + c + d + e) >>> 0;
|
|
}
|
|
exports.sum32_5 = sum32_5;
|
|
|
|
function sum64(buf, pos, ah, al) {
|
|
var bh = buf[pos];
|
|
var bl = buf[pos + 1];
|
|
|
|
var lo = (al + bl) >>> 0;
|
|
var hi = (lo < al ? 1 : 0) + ah + bh;
|
|
buf[pos] = hi >>> 0;
|
|
buf[pos + 1] = lo;
|
|
}
|
|
exports.sum64 = sum64;
|
|
|
|
function sum64_hi(ah, al, bh, bl) {
|
|
var lo = (al + bl) >>> 0;
|
|
var hi = (lo < al ? 1 : 0) + ah + bh;
|
|
return hi >>> 0;
|
|
}
|
|
exports.sum64_hi = sum64_hi;
|
|
|
|
function sum64_lo(ah, al, bh, bl) {
|
|
var lo = al + bl;
|
|
return lo >>> 0;
|
|
}
|
|
exports.sum64_lo = sum64_lo;
|
|
|
|
function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
|
|
var carry = 0;
|
|
var lo = al;
|
|
lo = (lo + bl) >>> 0;
|
|
carry += lo < al ? 1 : 0;
|
|
lo = (lo + cl) >>> 0;
|
|
carry += lo < cl ? 1 : 0;
|
|
lo = (lo + dl) >>> 0;
|
|
carry += lo < dl ? 1 : 0;
|
|
|
|
var hi = ah + bh + ch + dh + carry;
|
|
return hi >>> 0;
|
|
}
|
|
exports.sum64_4_hi = sum64_4_hi;
|
|
|
|
function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
|
|
var lo = al + bl + cl + dl;
|
|
return lo >>> 0;
|
|
}
|
|
exports.sum64_4_lo = sum64_4_lo;
|
|
|
|
function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
|
|
var carry = 0;
|
|
var lo = al;
|
|
lo = (lo + bl) >>> 0;
|
|
carry += lo < al ? 1 : 0;
|
|
lo = (lo + cl) >>> 0;
|
|
carry += lo < cl ? 1 : 0;
|
|
lo = (lo + dl) >>> 0;
|
|
carry += lo < dl ? 1 : 0;
|
|
lo = (lo + el) >>> 0;
|
|
carry += lo < el ? 1 : 0;
|
|
|
|
var hi = ah + bh + ch + dh + eh + carry;
|
|
return hi >>> 0;
|
|
}
|
|
exports.sum64_5_hi = sum64_5_hi;
|
|
|
|
function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
|
|
var lo = al + bl + cl + dl + el;
|
|
|
|
return lo >>> 0;
|
|
}
|
|
exports.sum64_5_lo = sum64_5_lo;
|
|
|
|
function rotr64_hi(ah, al, num) {
|
|
var r = (al << (32 - num)) | (ah >>> num);
|
|
return r >>> 0;
|
|
}
|
|
exports.rotr64_hi = rotr64_hi;
|
|
|
|
function rotr64_lo(ah, al, num) {
|
|
var r = (ah << (32 - num)) | (al >>> num);
|
|
return r >>> 0;
|
|
}
|
|
exports.rotr64_lo = rotr64_lo;
|
|
|
|
function shr64_hi(ah, al, num) {
|
|
return ah >>> num;
|
|
}
|
|
exports.shr64_hi = shr64_hi;
|
|
|
|
function shr64_lo(ah, al, num) {
|
|
var r = (ah << (32 - num)) | (al >>> num);
|
|
return r >>> 0;
|
|
}
|
|
exports.shr64_lo = shr64_lo;
|
|
|
|
},{"inherits":100,"minimalistic-assert":104}],98:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var hash = require('hash.js');
|
|
var utils = require('minimalistic-crypto-utils');
|
|
var assert = require('minimalistic-assert');
|
|
|
|
function HmacDRBG(options) {
|
|
if (!(this instanceof HmacDRBG))
|
|
return new HmacDRBG(options);
|
|
this.hash = options.hash;
|
|
this.predResist = !!options.predResist;
|
|
|
|
this.outLen = this.hash.outSize;
|
|
this.minEntropy = options.minEntropy || this.hash.hmacStrength;
|
|
|
|
this._reseed = null;
|
|
this.reseedInterval = null;
|
|
this.K = null;
|
|
this.V = null;
|
|
|
|
var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex');
|
|
var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex');
|
|
var pers = utils.toArray(options.pers, options.persEnc || 'hex');
|
|
assert(entropy.length >= (this.minEntropy / 8),
|
|
'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
|
|
this._init(entropy, nonce, pers);
|
|
}
|
|
module.exports = HmacDRBG;
|
|
|
|
HmacDRBG.prototype._init = function init(entropy, nonce, pers) {
|
|
var seed = entropy.concat(nonce).concat(pers);
|
|
|
|
this.K = new Array(this.outLen / 8);
|
|
this.V = new Array(this.outLen / 8);
|
|
for (var i = 0; i < this.V.length; i++) {
|
|
this.K[i] = 0x00;
|
|
this.V[i] = 0x01;
|
|
}
|
|
|
|
this._update(seed);
|
|
this._reseed = 1;
|
|
this.reseedInterval = 0x1000000000000; // 2^48
|
|
};
|
|
|
|
HmacDRBG.prototype._hmac = function hmac() {
|
|
return new hash.hmac(this.hash, this.K);
|
|
};
|
|
|
|
HmacDRBG.prototype._update = function update(seed) {
|
|
var kmac = this._hmac()
|
|
.update(this.V)
|
|
.update([ 0x00 ]);
|
|
if (seed)
|
|
kmac = kmac.update(seed);
|
|
this.K = kmac.digest();
|
|
this.V = this._hmac().update(this.V).digest();
|
|
if (!seed)
|
|
return;
|
|
|
|
this.K = this._hmac()
|
|
.update(this.V)
|
|
.update([ 0x01 ])
|
|
.update(seed)
|
|
.digest();
|
|
this.V = this._hmac().update(this.V).digest();
|
|
};
|
|
|
|
HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {
|
|
// Optional entropy enc
|
|
if (typeof entropyEnc !== 'string') {
|
|
addEnc = add;
|
|
add = entropyEnc;
|
|
entropyEnc = null;
|
|
}
|
|
|
|
entropy = utils.toArray(entropy, entropyEnc);
|
|
add = utils.toArray(add, addEnc);
|
|
|
|
assert(entropy.length >= (this.minEntropy / 8),
|
|
'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
|
|
|
|
this._update(entropy.concat(add || []));
|
|
this._reseed = 1;
|
|
};
|
|
|
|
HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
|
|
if (this._reseed > this.reseedInterval)
|
|
throw new Error('Reseed is required');
|
|
|
|
// Optional encoding
|
|
if (typeof enc !== 'string') {
|
|
addEnc = add;
|
|
add = enc;
|
|
enc = null;
|
|
}
|
|
|
|
// Optional additional data
|
|
if (add) {
|
|
add = utils.toArray(add, addEnc || 'hex');
|
|
this._update(add);
|
|
}
|
|
|
|
var temp = [];
|
|
while (temp.length < len) {
|
|
this.V = this._hmac().update(this.V).digest();
|
|
temp = temp.concat(this.V);
|
|
}
|
|
|
|
var res = temp.slice(0, len);
|
|
this._update(add);
|
|
this._reseed++;
|
|
return utils.encode(res, enc);
|
|
};
|
|
|
|
},{"hash.js":86,"minimalistic-assert":104,"minimalistic-crypto-utils":105}],99:[function(require,module,exports){
|
|
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
|
|
var e, m
|
|
var eLen = (nBytes * 8) - mLen - 1
|
|
var eMax = (1 << eLen) - 1
|
|
var eBias = eMax >> 1
|
|
var nBits = -7
|
|
var i = isLE ? (nBytes - 1) : 0
|
|
var d = isLE ? -1 : 1
|
|
var s = buffer[offset + i]
|
|
|
|
i += d
|
|
|
|
e = s & ((1 << (-nBits)) - 1)
|
|
s >>= (-nBits)
|
|
nBits += eLen
|
|
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
|
|
|
|
m = e & ((1 << (-nBits)) - 1)
|
|
e >>= (-nBits)
|
|
nBits += mLen
|
|
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
|
|
|
|
if (e === 0) {
|
|
e = 1 - eBias
|
|
} else if (e === eMax) {
|
|
return m ? NaN : ((s ? -1 : 1) * Infinity)
|
|
} else {
|
|
m = m + Math.pow(2, mLen)
|
|
e = e - eBias
|
|
}
|
|
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
|
|
}
|
|
|
|
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
|
|
var e, m, c
|
|
var eLen = (nBytes * 8) - mLen - 1
|
|
var eMax = (1 << eLen) - 1
|
|
var eBias = eMax >> 1
|
|
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
|
|
var i = isLE ? 0 : (nBytes - 1)
|
|
var d = isLE ? 1 : -1
|
|
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
|
|
|
|
value = Math.abs(value)
|
|
|
|
if (isNaN(value) || value === Infinity) {
|
|
m = isNaN(value) ? 1 : 0
|
|
e = eMax
|
|
} else {
|
|
e = Math.floor(Math.log(value) / Math.LN2)
|
|
if (value * (c = Math.pow(2, -e)) < 1) {
|
|
e--
|
|
c *= 2
|
|
}
|
|
if (e + eBias >= 1) {
|
|
value += rt / c
|
|
} else {
|
|
value += rt * Math.pow(2, 1 - eBias)
|
|
}
|
|
if (value * c >= 2) {
|
|
e++
|
|
c /= 2
|
|
}
|
|
|
|
if (e + eBias >= eMax) {
|
|
m = 0
|
|
e = eMax
|
|
} else if (e + eBias >= 1) {
|
|
m = ((value * c) - 1) * Math.pow(2, mLen)
|
|
e = e + eBias
|
|
} else {
|
|
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
|
|
e = 0
|
|
}
|
|
}
|
|
|
|
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
|
|
|
|
e = (e << mLen) | m
|
|
eLen += mLen
|
|
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
|
|
|
|
buffer[offset + i - d] |= s * 128
|
|
}
|
|
|
|
},{}],100:[function(require,module,exports){
|
|
if (typeof Object.create === 'function') {
|
|
// implementation from standard node.js 'util' module
|
|
module.exports = function inherits(ctor, superCtor) {
|
|
if (superCtor) {
|
|
ctor.super_ = superCtor
|
|
ctor.prototype = Object.create(superCtor.prototype, {
|
|
constructor: {
|
|
value: ctor,
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true
|
|
}
|
|
})
|
|
}
|
|
};
|
|
} else {
|
|
// old school shim for old browsers
|
|
module.exports = function inherits(ctor, superCtor) {
|
|
if (superCtor) {
|
|
ctor.super_ = superCtor
|
|
var TempCtor = function () {}
|
|
TempCtor.prototype = superCtor.prototype
|
|
ctor.prototype = new TempCtor()
|
|
ctor.prototype.constructor = ctor
|
|
}
|
|
}
|
|
}
|
|
|
|
},{}],101:[function(require,module,exports){
|
|
/*!
|
|
* Determine if an object is a Buffer
|
|
*
|
|
* @author Feross Aboukhadijeh <https://feross.org>
|
|
* @license MIT
|
|
*/
|
|
|
|
// The _isBuffer check is for Safari 5-7 support, because it's missing
|
|
// Object.prototype.constructor. Remove this eventually
|
|
module.exports = function (obj) {
|
|
return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
|
|
}
|
|
|
|
function isBuffer (obj) {
|
|
return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
|
|
}
|
|
|
|
// For Node v0.10 support. Remove this eventually.
|
|
function isSlowBuffer (obj) {
|
|
return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
|
|
}
|
|
|
|
},{}],102:[function(require,module,exports){
|
|
'use strict'
|
|
var inherits = require('inherits')
|
|
var HashBase = require('hash-base')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var ARRAY16 = new Array(16)
|
|
|
|
function MD5 () {
|
|
HashBase.call(this, 64)
|
|
|
|
// state
|
|
this._a = 0x67452301
|
|
this._b = 0xefcdab89
|
|
this._c = 0x98badcfe
|
|
this._d = 0x10325476
|
|
}
|
|
|
|
inherits(MD5, HashBase)
|
|
|
|
MD5.prototype._update = function () {
|
|
var M = ARRAY16
|
|
for (var i = 0; i < 16; ++i) M[i] = this._block.readInt32LE(i * 4)
|
|
|
|
var a = this._a
|
|
var b = this._b
|
|
var c = this._c
|
|
var d = this._d
|
|
|
|
a = fnF(a, b, c, d, M[0], 0xd76aa478, 7)
|
|
d = fnF(d, a, b, c, M[1], 0xe8c7b756, 12)
|
|
c = fnF(c, d, a, b, M[2], 0x242070db, 17)
|
|
b = fnF(b, c, d, a, M[3], 0xc1bdceee, 22)
|
|
a = fnF(a, b, c, d, M[4], 0xf57c0faf, 7)
|
|
d = fnF(d, a, b, c, M[5], 0x4787c62a, 12)
|
|
c = fnF(c, d, a, b, M[6], 0xa8304613, 17)
|
|
b = fnF(b, c, d, a, M[7], 0xfd469501, 22)
|
|
a = fnF(a, b, c, d, M[8], 0x698098d8, 7)
|
|
d = fnF(d, a, b, c, M[9], 0x8b44f7af, 12)
|
|
c = fnF(c, d, a, b, M[10], 0xffff5bb1, 17)
|
|
b = fnF(b, c, d, a, M[11], 0x895cd7be, 22)
|
|
a = fnF(a, b, c, d, M[12], 0x6b901122, 7)
|
|
d = fnF(d, a, b, c, M[13], 0xfd987193, 12)
|
|
c = fnF(c, d, a, b, M[14], 0xa679438e, 17)
|
|
b = fnF(b, c, d, a, M[15], 0x49b40821, 22)
|
|
|
|
a = fnG(a, b, c, d, M[1], 0xf61e2562, 5)
|
|
d = fnG(d, a, b, c, M[6], 0xc040b340, 9)
|
|
c = fnG(c, d, a, b, M[11], 0x265e5a51, 14)
|
|
b = fnG(b, c, d, a, M[0], 0xe9b6c7aa, 20)
|
|
a = fnG(a, b, c, d, M[5], 0xd62f105d, 5)
|
|
d = fnG(d, a, b, c, M[10], 0x02441453, 9)
|
|
c = fnG(c, d, a, b, M[15], 0xd8a1e681, 14)
|
|
b = fnG(b, c, d, a, M[4], 0xe7d3fbc8, 20)
|
|
a = fnG(a, b, c, d, M[9], 0x21e1cde6, 5)
|
|
d = fnG(d, a, b, c, M[14], 0xc33707d6, 9)
|
|
c = fnG(c, d, a, b, M[3], 0xf4d50d87, 14)
|
|
b = fnG(b, c, d, a, M[8], 0x455a14ed, 20)
|
|
a = fnG(a, b, c, d, M[13], 0xa9e3e905, 5)
|
|
d = fnG(d, a, b, c, M[2], 0xfcefa3f8, 9)
|
|
c = fnG(c, d, a, b, M[7], 0x676f02d9, 14)
|
|
b = fnG(b, c, d, a, M[12], 0x8d2a4c8a, 20)
|
|
|
|
a = fnH(a, b, c, d, M[5], 0xfffa3942, 4)
|
|
d = fnH(d, a, b, c, M[8], 0x8771f681, 11)
|
|
c = fnH(c, d, a, b, M[11], 0x6d9d6122, 16)
|
|
b = fnH(b, c, d, a, M[14], 0xfde5380c, 23)
|
|
a = fnH(a, b, c, d, M[1], 0xa4beea44, 4)
|
|
d = fnH(d, a, b, c, M[4], 0x4bdecfa9, 11)
|
|
c = fnH(c, d, a, b, M[7], 0xf6bb4b60, 16)
|
|
b = fnH(b, c, d, a, M[10], 0xbebfbc70, 23)
|
|
a = fnH(a, b, c, d, M[13], 0x289b7ec6, 4)
|
|
d = fnH(d, a, b, c, M[0], 0xeaa127fa, 11)
|
|
c = fnH(c, d, a, b, M[3], 0xd4ef3085, 16)
|
|
b = fnH(b, c, d, a, M[6], 0x04881d05, 23)
|
|
a = fnH(a, b, c, d, M[9], 0xd9d4d039, 4)
|
|
d = fnH(d, a, b, c, M[12], 0xe6db99e5, 11)
|
|
c = fnH(c, d, a, b, M[15], 0x1fa27cf8, 16)
|
|
b = fnH(b, c, d, a, M[2], 0xc4ac5665, 23)
|
|
|
|
a = fnI(a, b, c, d, M[0], 0xf4292244, 6)
|
|
d = fnI(d, a, b, c, M[7], 0x432aff97, 10)
|
|
c = fnI(c, d, a, b, M[14], 0xab9423a7, 15)
|
|
b = fnI(b, c, d, a, M[5], 0xfc93a039, 21)
|
|
a = fnI(a, b, c, d, M[12], 0x655b59c3, 6)
|
|
d = fnI(d, a, b, c, M[3], 0x8f0ccc92, 10)
|
|
c = fnI(c, d, a, b, M[10], 0xffeff47d, 15)
|
|
b = fnI(b, c, d, a, M[1], 0x85845dd1, 21)
|
|
a = fnI(a, b, c, d, M[8], 0x6fa87e4f, 6)
|
|
d = fnI(d, a, b, c, M[15], 0xfe2ce6e0, 10)
|
|
c = fnI(c, d, a, b, M[6], 0xa3014314, 15)
|
|
b = fnI(b, c, d, a, M[13], 0x4e0811a1, 21)
|
|
a = fnI(a, b, c, d, M[4], 0xf7537e82, 6)
|
|
d = fnI(d, a, b, c, M[11], 0xbd3af235, 10)
|
|
c = fnI(c, d, a, b, M[2], 0x2ad7d2bb, 15)
|
|
b = fnI(b, c, d, a, M[9], 0xeb86d391, 21)
|
|
|
|
this._a = (this._a + a) | 0
|
|
this._b = (this._b + b) | 0
|
|
this._c = (this._c + c) | 0
|
|
this._d = (this._d + d) | 0
|
|
}
|
|
|
|
MD5.prototype._digest = function () {
|
|
// create padding and handle blocks
|
|
this._block[this._blockOffset++] = 0x80
|
|
if (this._blockOffset > 56) {
|
|
this._block.fill(0, this._blockOffset, 64)
|
|
this._update()
|
|
this._blockOffset = 0
|
|
}
|
|
|
|
this._block.fill(0, this._blockOffset, 56)
|
|
this._block.writeUInt32LE(this._length[0], 56)
|
|
this._block.writeUInt32LE(this._length[1], 60)
|
|
this._update()
|
|
|
|
// produce result
|
|
var buffer = Buffer.allocUnsafe(16)
|
|
buffer.writeInt32LE(this._a, 0)
|
|
buffer.writeInt32LE(this._b, 4)
|
|
buffer.writeInt32LE(this._c, 8)
|
|
buffer.writeInt32LE(this._d, 12)
|
|
return buffer
|
|
}
|
|
|
|
function rotl (x, n) {
|
|
return (x << n) | (x >>> (32 - n))
|
|
}
|
|
|
|
function fnF (a, b, c, d, m, k, s) {
|
|
return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + b) | 0
|
|
}
|
|
|
|
function fnG (a, b, c, d, m, k, s) {
|
|
return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + b) | 0
|
|
}
|
|
|
|
function fnH (a, b, c, d, m, k, s) {
|
|
return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + b) | 0
|
|
}
|
|
|
|
function fnI (a, b, c, d, m, k, s) {
|
|
return (rotl((a + ((c ^ (b | (~d)))) + m + k) | 0, s) + b) | 0
|
|
}
|
|
|
|
module.exports = MD5
|
|
|
|
},{"hash-base":85,"inherits":100,"safe-buffer":144}],103:[function(require,module,exports){
|
|
var bn = require('bn.js');
|
|
var brorand = require('brorand');
|
|
|
|
function MillerRabin(rand) {
|
|
this.rand = rand || new brorand.Rand();
|
|
}
|
|
module.exports = MillerRabin;
|
|
|
|
MillerRabin.create = function create(rand) {
|
|
return new MillerRabin(rand);
|
|
};
|
|
|
|
MillerRabin.prototype._randbelow = function _randbelow(n) {
|
|
var len = n.bitLength();
|
|
var min_bytes = Math.ceil(len / 8);
|
|
|
|
// Generage random bytes until a number less than n is found.
|
|
// This ensures that 0..n-1 have an equal probability of being selected.
|
|
do
|
|
var a = new bn(this.rand.generate(min_bytes));
|
|
while (a.cmp(n) >= 0);
|
|
|
|
return a;
|
|
};
|
|
|
|
MillerRabin.prototype._randrange = function _randrange(start, stop) {
|
|
// Generate a random number greater than or equal to start and less than stop.
|
|
var size = stop.sub(start);
|
|
return start.add(this._randbelow(size));
|
|
};
|
|
|
|
MillerRabin.prototype.test = function test(n, k, cb) {
|
|
var len = n.bitLength();
|
|
var red = bn.mont(n);
|
|
var rone = new bn(1).toRed(red);
|
|
|
|
if (!k)
|
|
k = Math.max(1, (len / 48) | 0);
|
|
|
|
// Find d and s, (n - 1) = (2 ^ s) * d;
|
|
var n1 = n.subn(1);
|
|
for (var s = 0; !n1.testn(s); s++) {}
|
|
var d = n.shrn(s);
|
|
|
|
var rn1 = n1.toRed(red);
|
|
|
|
var prime = true;
|
|
for (; k > 0; k--) {
|
|
var a = this._randrange(new bn(2), n1);
|
|
if (cb)
|
|
cb(a);
|
|
|
|
var x = a.toRed(red).redPow(d);
|
|
if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
|
|
continue;
|
|
|
|
for (var i = 1; i < s; i++) {
|
|
x = x.redSqr();
|
|
|
|
if (x.cmp(rone) === 0)
|
|
return false;
|
|
if (x.cmp(rn1) === 0)
|
|
break;
|
|
}
|
|
|
|
if (i === s)
|
|
return false;
|
|
}
|
|
|
|
return prime;
|
|
};
|
|
|
|
MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
|
|
var len = n.bitLength();
|
|
var red = bn.mont(n);
|
|
var rone = new bn(1).toRed(red);
|
|
|
|
if (!k)
|
|
k = Math.max(1, (len / 48) | 0);
|
|
|
|
// Find d and s, (n - 1) = (2 ^ s) * d;
|
|
var n1 = n.subn(1);
|
|
for (var s = 0; !n1.testn(s); s++) {}
|
|
var d = n.shrn(s);
|
|
|
|
var rn1 = n1.toRed(red);
|
|
|
|
for (; k > 0; k--) {
|
|
var a = this._randrange(new bn(2), n1);
|
|
|
|
var g = n.gcd(a);
|
|
if (g.cmpn(1) !== 0)
|
|
return g;
|
|
|
|
var x = a.toRed(red).redPow(d);
|
|
if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)
|
|
continue;
|
|
|
|
for (var i = 1; i < s; i++) {
|
|
x = x.redSqr();
|
|
|
|
if (x.cmp(rone) === 0)
|
|
return x.fromRed().subn(1).gcd(n);
|
|
if (x.cmp(rn1) === 0)
|
|
break;
|
|
}
|
|
|
|
if (i === s) {
|
|
x = x.redSqr();
|
|
return x.fromRed().subn(1).gcd(n);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
},{"bn.js":16,"brorand":17}],104:[function(require,module,exports){
|
|
module.exports = assert;
|
|
|
|
function assert(val, msg) {
|
|
if (!val)
|
|
throw new Error(msg || 'Assertion failed');
|
|
}
|
|
|
|
assert.equal = function assertEqual(l, r, msg) {
|
|
if (l != r)
|
|
throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
|
|
};
|
|
|
|
},{}],105:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
var utils = exports;
|
|
|
|
function toArray(msg, enc) {
|
|
if (Array.isArray(msg))
|
|
return msg.slice();
|
|
if (!msg)
|
|
return [];
|
|
var res = [];
|
|
if (typeof msg !== 'string') {
|
|
for (var i = 0; i < msg.length; i++)
|
|
res[i] = msg[i] | 0;
|
|
return res;
|
|
}
|
|
if (enc === 'hex') {
|
|
msg = msg.replace(/[^a-z0-9]+/ig, '');
|
|
if (msg.length % 2 !== 0)
|
|
msg = '0' + msg;
|
|
for (var i = 0; i < msg.length; i += 2)
|
|
res.push(parseInt(msg[i] + msg[i + 1], 16));
|
|
} else {
|
|
for (var i = 0; i < msg.length; i++) {
|
|
var c = msg.charCodeAt(i);
|
|
var hi = c >> 8;
|
|
var lo = c & 0xff;
|
|
if (hi)
|
|
res.push(hi, lo);
|
|
else
|
|
res.push(lo);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
utils.toArray = toArray;
|
|
|
|
function zero2(word) {
|
|
if (word.length === 1)
|
|
return '0' + word;
|
|
else
|
|
return word;
|
|
}
|
|
utils.zero2 = zero2;
|
|
|
|
function toHex(msg) {
|
|
var res = '';
|
|
for (var i = 0; i < msg.length; i++)
|
|
res += zero2(msg[i].toString(16));
|
|
return res;
|
|
}
|
|
utils.toHex = toHex;
|
|
|
|
utils.encode = function encode(arr, enc) {
|
|
if (enc === 'hex')
|
|
return toHex(arr);
|
|
else
|
|
return arr;
|
|
};
|
|
|
|
},{}],106:[function(require,module,exports){
|
|
module.exports={"2.16.840.1.101.3.4.1.1": "aes-128-ecb",
|
|
"2.16.840.1.101.3.4.1.2": "aes-128-cbc",
|
|
"2.16.840.1.101.3.4.1.3": "aes-128-ofb",
|
|
"2.16.840.1.101.3.4.1.4": "aes-128-cfb",
|
|
"2.16.840.1.101.3.4.1.21": "aes-192-ecb",
|
|
"2.16.840.1.101.3.4.1.22": "aes-192-cbc",
|
|
"2.16.840.1.101.3.4.1.23": "aes-192-ofb",
|
|
"2.16.840.1.101.3.4.1.24": "aes-192-cfb",
|
|
"2.16.840.1.101.3.4.1.41": "aes-256-ecb",
|
|
"2.16.840.1.101.3.4.1.42": "aes-256-cbc",
|
|
"2.16.840.1.101.3.4.1.43": "aes-256-ofb",
|
|
"2.16.840.1.101.3.4.1.44": "aes-256-cfb"
|
|
}
|
|
},{}],107:[function(require,module,exports){
|
|
// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js
|
|
// Fedor, you are amazing.
|
|
'use strict'
|
|
|
|
var asn1 = require('asn1.js')
|
|
|
|
exports.certificate = require('./certificate')
|
|
|
|
var RSAPrivateKey = asn1.define('RSAPrivateKey', function () {
|
|
this.seq().obj(
|
|
this.key('version').int(),
|
|
this.key('modulus').int(),
|
|
this.key('publicExponent').int(),
|
|
this.key('privateExponent').int(),
|
|
this.key('prime1').int(),
|
|
this.key('prime2').int(),
|
|
this.key('exponent1').int(),
|
|
this.key('exponent2').int(),
|
|
this.key('coefficient').int()
|
|
)
|
|
})
|
|
exports.RSAPrivateKey = RSAPrivateKey
|
|
|
|
var RSAPublicKey = asn1.define('RSAPublicKey', function () {
|
|
this.seq().obj(
|
|
this.key('modulus').int(),
|
|
this.key('publicExponent').int()
|
|
)
|
|
})
|
|
exports.RSAPublicKey = RSAPublicKey
|
|
|
|
var PublicKey = asn1.define('SubjectPublicKeyInfo', function () {
|
|
this.seq().obj(
|
|
this.key('algorithm').use(AlgorithmIdentifier),
|
|
this.key('subjectPublicKey').bitstr()
|
|
)
|
|
})
|
|
exports.PublicKey = PublicKey
|
|
|
|
var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () {
|
|
this.seq().obj(
|
|
this.key('algorithm').objid(),
|
|
this.key('none').null_().optional(),
|
|
this.key('curve').objid().optional(),
|
|
this.key('params').seq().obj(
|
|
this.key('p').int(),
|
|
this.key('q').int(),
|
|
this.key('g').int()
|
|
).optional()
|
|
)
|
|
})
|
|
|
|
var PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () {
|
|
this.seq().obj(
|
|
this.key('version').int(),
|
|
this.key('algorithm').use(AlgorithmIdentifier),
|
|
this.key('subjectPrivateKey').octstr()
|
|
)
|
|
})
|
|
exports.PrivateKey = PrivateKeyInfo
|
|
var EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () {
|
|
this.seq().obj(
|
|
this.key('algorithm').seq().obj(
|
|
this.key('id').objid(),
|
|
this.key('decrypt').seq().obj(
|
|
this.key('kde').seq().obj(
|
|
this.key('id').objid(),
|
|
this.key('kdeparams').seq().obj(
|
|
this.key('salt').octstr(),
|
|
this.key('iters').int()
|
|
)
|
|
),
|
|
this.key('cipher').seq().obj(
|
|
this.key('algo').objid(),
|
|
this.key('iv').octstr()
|
|
)
|
|
)
|
|
),
|
|
this.key('subjectPrivateKey').octstr()
|
|
)
|
|
})
|
|
|
|
exports.EncryptedPrivateKey = EncryptedPrivateKeyInfo
|
|
|
|
var DSAPrivateKey = asn1.define('DSAPrivateKey', function () {
|
|
this.seq().obj(
|
|
this.key('version').int(),
|
|
this.key('p').int(),
|
|
this.key('q').int(),
|
|
this.key('g').int(),
|
|
this.key('pub_key').int(),
|
|
this.key('priv_key').int()
|
|
)
|
|
})
|
|
exports.DSAPrivateKey = DSAPrivateKey
|
|
|
|
exports.DSAparam = asn1.define('DSAparam', function () {
|
|
this.int()
|
|
})
|
|
|
|
var ECPrivateKey = asn1.define('ECPrivateKey', function () {
|
|
this.seq().obj(
|
|
this.key('version').int(),
|
|
this.key('privateKey').octstr(),
|
|
this.key('parameters').optional().explicit(0).use(ECParameters),
|
|
this.key('publicKey').optional().explicit(1).bitstr()
|
|
)
|
|
})
|
|
exports.ECPrivateKey = ECPrivateKey
|
|
|
|
var ECParameters = asn1.define('ECParameters', function () {
|
|
this.choice({
|
|
namedCurve: this.objid()
|
|
})
|
|
})
|
|
|
|
exports.signature = asn1.define('signature', function () {
|
|
this.seq().obj(
|
|
this.key('r').int(),
|
|
this.key('s').int()
|
|
)
|
|
})
|
|
|
|
},{"./certificate":108,"asn1.js":1}],108:[function(require,module,exports){
|
|
// from https://github.com/Rantanen/node-dtls/blob/25a7dc861bda38cfeac93a723500eea4f0ac2e86/Certificate.js
|
|
// thanks to @Rantanen
|
|
|
|
'use strict'
|
|
|
|
var asn = require('asn1.js')
|
|
|
|
var Time = asn.define('Time', function () {
|
|
this.choice({
|
|
utcTime: this.utctime(),
|
|
generalTime: this.gentime()
|
|
})
|
|
})
|
|
|
|
var AttributeTypeValue = asn.define('AttributeTypeValue', function () {
|
|
this.seq().obj(
|
|
this.key('type').objid(),
|
|
this.key('value').any()
|
|
)
|
|
})
|
|
|
|
var AlgorithmIdentifier = asn.define('AlgorithmIdentifier', function () {
|
|
this.seq().obj(
|
|
this.key('algorithm').objid(),
|
|
this.key('parameters').optional(),
|
|
this.key('curve').objid().optional()
|
|
)
|
|
})
|
|
|
|
var SubjectPublicKeyInfo = asn.define('SubjectPublicKeyInfo', function () {
|
|
this.seq().obj(
|
|
this.key('algorithm').use(AlgorithmIdentifier),
|
|
this.key('subjectPublicKey').bitstr()
|
|
)
|
|
})
|
|
|
|
var RelativeDistinguishedName = asn.define('RelativeDistinguishedName', function () {
|
|
this.setof(AttributeTypeValue)
|
|
})
|
|
|
|
var RDNSequence = asn.define('RDNSequence', function () {
|
|
this.seqof(RelativeDistinguishedName)
|
|
})
|
|
|
|
var Name = asn.define('Name', function () {
|
|
this.choice({
|
|
rdnSequence: this.use(RDNSequence)
|
|
})
|
|
})
|
|
|
|
var Validity = asn.define('Validity', function () {
|
|
this.seq().obj(
|
|
this.key('notBefore').use(Time),
|
|
this.key('notAfter').use(Time)
|
|
)
|
|
})
|
|
|
|
var Extension = asn.define('Extension', function () {
|
|
this.seq().obj(
|
|
this.key('extnID').objid(),
|
|
this.key('critical').bool().def(false),
|
|
this.key('extnValue').octstr()
|
|
)
|
|
})
|
|
|
|
var TBSCertificate = asn.define('TBSCertificate', function () {
|
|
this.seq().obj(
|
|
this.key('version').explicit(0).int().optional(),
|
|
this.key('serialNumber').int(),
|
|
this.key('signature').use(AlgorithmIdentifier),
|
|
this.key('issuer').use(Name),
|
|
this.key('validity').use(Validity),
|
|
this.key('subject').use(Name),
|
|
this.key('subjectPublicKeyInfo').use(SubjectPublicKeyInfo),
|
|
this.key('issuerUniqueID').implicit(1).bitstr().optional(),
|
|
this.key('subjectUniqueID').implicit(2).bitstr().optional(),
|
|
this.key('extensions').explicit(3).seqof(Extension).optional()
|
|
)
|
|
})
|
|
|
|
var X509Certificate = asn.define('X509Certificate', function () {
|
|
this.seq().obj(
|
|
this.key('tbsCertificate').use(TBSCertificate),
|
|
this.key('signatureAlgorithm').use(AlgorithmIdentifier),
|
|
this.key('signatureValue').bitstr()
|
|
)
|
|
})
|
|
|
|
module.exports = X509Certificate
|
|
|
|
},{"asn1.js":1}],109:[function(require,module,exports){
|
|
// adapted from https://github.com/apatil/pemstrip
|
|
var findProc = /Proc-Type: 4,ENCRYPTED[\n\r]+DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)[\n\r]+([0-9A-z\n\r\+\/\=]+)[\n\r]+/m
|
|
var startRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----/m
|
|
var fullRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----([0-9A-z\n\r\+\/\=]+)-----END \1-----$/m
|
|
var evp = require('evp_bytestokey')
|
|
var ciphers = require('browserify-aes')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
module.exports = function (okey, password) {
|
|
var key = okey.toString()
|
|
var match = key.match(findProc)
|
|
var decrypted
|
|
if (!match) {
|
|
var match2 = key.match(fullRegex)
|
|
decrypted = new Buffer(match2[2].replace(/[\r\n]/g, ''), 'base64')
|
|
} else {
|
|
var suite = 'aes' + match[1]
|
|
var iv = Buffer.from(match[2], 'hex')
|
|
var cipherText = Buffer.from(match[3].replace(/[\r\n]/g, ''), 'base64')
|
|
var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key
|
|
var out = []
|
|
var cipher = ciphers.createDecipheriv(suite, cipherKey, iv)
|
|
out.push(cipher.update(cipherText))
|
|
out.push(cipher.final())
|
|
decrypted = Buffer.concat(out)
|
|
}
|
|
var tag = key.match(startRegex)[1]
|
|
return {
|
|
tag: tag,
|
|
data: decrypted
|
|
}
|
|
}
|
|
|
|
},{"browserify-aes":21,"evp_bytestokey":84,"safe-buffer":144}],110:[function(require,module,exports){
|
|
var asn1 = require('./asn1')
|
|
var aesid = require('./aesid.json')
|
|
var fixProc = require('./fixProc')
|
|
var ciphers = require('browserify-aes')
|
|
var compat = require('pbkdf2')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
module.exports = parseKeys
|
|
|
|
function parseKeys (buffer) {
|
|
var password
|
|
if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) {
|
|
password = buffer.passphrase
|
|
buffer = buffer.key
|
|
}
|
|
if (typeof buffer === 'string') {
|
|
buffer = Buffer.from(buffer)
|
|
}
|
|
|
|
var stripped = fixProc(buffer, password)
|
|
|
|
var type = stripped.tag
|
|
var data = stripped.data
|
|
var subtype, ndata
|
|
switch (type) {
|
|
case 'CERTIFICATE':
|
|
ndata = asn1.certificate.decode(data, 'der').tbsCertificate.subjectPublicKeyInfo
|
|
// falls through
|
|
case 'PUBLIC KEY':
|
|
if (!ndata) {
|
|
ndata = asn1.PublicKey.decode(data, 'der')
|
|
}
|
|
subtype = ndata.algorithm.algorithm.join('.')
|
|
switch (subtype) {
|
|
case '1.2.840.113549.1.1.1':
|
|
return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der')
|
|
case '1.2.840.10045.2.1':
|
|
ndata.subjectPrivateKey = ndata.subjectPublicKey
|
|
return {
|
|
type: 'ec',
|
|
data: ndata
|
|
}
|
|
case '1.2.840.10040.4.1':
|
|
ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der')
|
|
return {
|
|
type: 'dsa',
|
|
data: ndata.algorithm.params
|
|
}
|
|
default: throw new Error('unknown key id ' + subtype)
|
|
}
|
|
throw new Error('unknown key type ' + type)
|
|
case 'ENCRYPTED PRIVATE KEY':
|
|
data = asn1.EncryptedPrivateKey.decode(data, 'der')
|
|
data = decrypt(data, password)
|
|
// falls through
|
|
case 'PRIVATE KEY':
|
|
ndata = asn1.PrivateKey.decode(data, 'der')
|
|
subtype = ndata.algorithm.algorithm.join('.')
|
|
switch (subtype) {
|
|
case '1.2.840.113549.1.1.1':
|
|
return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der')
|
|
case '1.2.840.10045.2.1':
|
|
return {
|
|
curve: ndata.algorithm.curve,
|
|
privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey
|
|
}
|
|
case '1.2.840.10040.4.1':
|
|
ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der')
|
|
return {
|
|
type: 'dsa',
|
|
params: ndata.algorithm.params
|
|
}
|
|
default: throw new Error('unknown key id ' + subtype)
|
|
}
|
|
throw new Error('unknown key type ' + type)
|
|
case 'RSA PUBLIC KEY':
|
|
return asn1.RSAPublicKey.decode(data, 'der')
|
|
case 'RSA PRIVATE KEY':
|
|
return asn1.RSAPrivateKey.decode(data, 'der')
|
|
case 'DSA PRIVATE KEY':
|
|
return {
|
|
type: 'dsa',
|
|
params: asn1.DSAPrivateKey.decode(data, 'der')
|
|
}
|
|
case 'EC PRIVATE KEY':
|
|
data = asn1.ECPrivateKey.decode(data, 'der')
|
|
return {
|
|
curve: data.parameters.value,
|
|
privateKey: data.privateKey
|
|
}
|
|
default: throw new Error('unknown key type ' + type)
|
|
}
|
|
}
|
|
parseKeys.signature = asn1.signature
|
|
function decrypt (data, password) {
|
|
var salt = data.algorithm.decrypt.kde.kdeparams.salt
|
|
var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10)
|
|
var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')]
|
|
var iv = data.algorithm.decrypt.cipher.iv
|
|
var cipherText = data.subjectPrivateKey
|
|
var keylen = parseInt(algo.split('-')[1], 10) / 8
|
|
var key = compat.pbkdf2Sync(password, salt, iters, keylen, 'sha1')
|
|
var cipher = ciphers.createDecipheriv(algo, key, iv)
|
|
var out = []
|
|
out.push(cipher.update(cipherText))
|
|
out.push(cipher.final())
|
|
return Buffer.concat(out)
|
|
}
|
|
|
|
},{"./aesid.json":106,"./asn1":107,"./fixProc":109,"browserify-aes":21,"pbkdf2":111,"safe-buffer":144}],111:[function(require,module,exports){
|
|
exports.pbkdf2 = require('./lib/async')
|
|
exports.pbkdf2Sync = require('./lib/sync')
|
|
|
|
},{"./lib/async":112,"./lib/sync":115}],112:[function(require,module,exports){
|
|
(function (process,global){
|
|
var checkParameters = require('./precondition')
|
|
var defaultEncoding = require('./default-encoding')
|
|
var sync = require('./sync')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var ZERO_BUF
|
|
var subtle = global.crypto && global.crypto.subtle
|
|
var toBrowser = {
|
|
'sha': 'SHA-1',
|
|
'sha-1': 'SHA-1',
|
|
'sha1': 'SHA-1',
|
|
'sha256': 'SHA-256',
|
|
'sha-256': 'SHA-256',
|
|
'sha384': 'SHA-384',
|
|
'sha-384': 'SHA-384',
|
|
'sha-512': 'SHA-512',
|
|
'sha512': 'SHA-512'
|
|
}
|
|
var checks = []
|
|
function checkNative (algo) {
|
|
if (global.process && !global.process.browser) {
|
|
return Promise.resolve(false)
|
|
}
|
|
if (!subtle || !subtle.importKey || !subtle.deriveBits) {
|
|
return Promise.resolve(false)
|
|
}
|
|
if (checks[algo] !== undefined) {
|
|
return checks[algo]
|
|
}
|
|
ZERO_BUF = ZERO_BUF || Buffer.alloc(8)
|
|
var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo)
|
|
.then(function () {
|
|
return true
|
|
}).catch(function () {
|
|
return false
|
|
})
|
|
checks[algo] = prom
|
|
return prom
|
|
}
|
|
|
|
function browserPbkdf2 (password, salt, iterations, length, algo) {
|
|
return subtle.importKey(
|
|
'raw', password, {name: 'PBKDF2'}, false, ['deriveBits']
|
|
).then(function (key) {
|
|
return subtle.deriveBits({
|
|
name: 'PBKDF2',
|
|
salt: salt,
|
|
iterations: iterations,
|
|
hash: {
|
|
name: algo
|
|
}
|
|
}, key, length << 3)
|
|
}).then(function (res) {
|
|
return Buffer.from(res)
|
|
})
|
|
}
|
|
|
|
function resolvePromise (promise, callback) {
|
|
promise.then(function (out) {
|
|
process.nextTick(function () {
|
|
callback(null, out)
|
|
})
|
|
}, function (e) {
|
|
process.nextTick(function () {
|
|
callback(e)
|
|
})
|
|
})
|
|
}
|
|
module.exports = function (password, salt, iterations, keylen, digest, callback) {
|
|
if (typeof digest === 'function') {
|
|
callback = digest
|
|
digest = undefined
|
|
}
|
|
|
|
digest = digest || 'sha1'
|
|
var algo = toBrowser[digest.toLowerCase()]
|
|
|
|
if (!algo || typeof global.Promise !== 'function') {
|
|
return process.nextTick(function () {
|
|
var out
|
|
try {
|
|
out = sync(password, salt, iterations, keylen, digest)
|
|
} catch (e) {
|
|
return callback(e)
|
|
}
|
|
callback(null, out)
|
|
})
|
|
}
|
|
|
|
checkParameters(password, salt, iterations, keylen)
|
|
if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')
|
|
if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)
|
|
if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)
|
|
|
|
resolvePromise(checkNative(algo).then(function (resp) {
|
|
if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo)
|
|
|
|
return sync(password, salt, iterations, keylen, digest)
|
|
}), callback)
|
|
}
|
|
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"./default-encoding":113,"./precondition":114,"./sync":115,"_process":117,"safe-buffer":144}],113:[function(require,module,exports){
|
|
(function (process){
|
|
var defaultEncoding
|
|
/* istanbul ignore next */
|
|
if (process.browser) {
|
|
defaultEncoding = 'utf-8'
|
|
} else {
|
|
var pVersionMajor = parseInt(process.version.split('.')[0].slice(1), 10)
|
|
|
|
defaultEncoding = pVersionMajor >= 6 ? 'utf-8' : 'binary'
|
|
}
|
|
module.exports = defaultEncoding
|
|
|
|
}).call(this,require('_process'))
|
|
|
|
},{"_process":117}],114:[function(require,module,exports){
|
|
(function (Buffer){
|
|
var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs
|
|
|
|
function checkBuffer (buf, name) {
|
|
if (typeof buf !== 'string' && !Buffer.isBuffer(buf)) {
|
|
throw new TypeError(name + ' must be a buffer or string')
|
|
}
|
|
}
|
|
|
|
module.exports = function (password, salt, iterations, keylen) {
|
|
checkBuffer(password, 'Password')
|
|
checkBuffer(salt, 'Salt')
|
|
|
|
if (typeof iterations !== 'number') {
|
|
throw new TypeError('Iterations not a number')
|
|
}
|
|
|
|
if (iterations < 0) {
|
|
throw new TypeError('Bad iterations')
|
|
}
|
|
|
|
if (typeof keylen !== 'number') {
|
|
throw new TypeError('Key length not a number')
|
|
}
|
|
|
|
if (keylen < 0 || keylen > MAX_ALLOC || keylen !== keylen) { /* eslint no-self-compare: 0 */
|
|
throw new TypeError('Bad key length')
|
|
}
|
|
}
|
|
|
|
}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
|
|
|
|
},{"../../is-buffer/index.js":101}],115:[function(require,module,exports){
|
|
var md5 = require('create-hash/md5')
|
|
var RIPEMD160 = require('ripemd160')
|
|
var sha = require('sha.js')
|
|
|
|
var checkParameters = require('./precondition')
|
|
var defaultEncoding = require('./default-encoding')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var ZEROS = Buffer.alloc(128)
|
|
var sizes = {
|
|
md5: 16,
|
|
sha1: 20,
|
|
sha224: 28,
|
|
sha256: 32,
|
|
sha384: 48,
|
|
sha512: 64,
|
|
rmd160: 20,
|
|
ripemd160: 20
|
|
}
|
|
|
|
function Hmac (alg, key, saltLen) {
|
|
var hash = getDigest(alg)
|
|
var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
|
|
|
|
if (key.length > blocksize) {
|
|
key = hash(key)
|
|
} else if (key.length < blocksize) {
|
|
key = Buffer.concat([key, ZEROS], blocksize)
|
|
}
|
|
|
|
var ipad = Buffer.allocUnsafe(blocksize + sizes[alg])
|
|
var opad = Buffer.allocUnsafe(blocksize + sizes[alg])
|
|
for (var i = 0; i < blocksize; i++) {
|
|
ipad[i] = key[i] ^ 0x36
|
|
opad[i] = key[i] ^ 0x5C
|
|
}
|
|
|
|
var ipad1 = Buffer.allocUnsafe(blocksize + saltLen + 4)
|
|
ipad.copy(ipad1, 0, 0, blocksize)
|
|
this.ipad1 = ipad1
|
|
this.ipad2 = ipad
|
|
this.opad = opad
|
|
this.alg = alg
|
|
this.blocksize = blocksize
|
|
this.hash = hash
|
|
this.size = sizes[alg]
|
|
}
|
|
|
|
Hmac.prototype.run = function (data, ipad) {
|
|
data.copy(ipad, this.blocksize)
|
|
var h = this.hash(ipad)
|
|
h.copy(this.opad, this.blocksize)
|
|
return this.hash(this.opad)
|
|
}
|
|
|
|
function getDigest (alg) {
|
|
function shaFunc (data) {
|
|
return sha(alg).update(data).digest()
|
|
}
|
|
function rmd160Func (data) {
|
|
return new RIPEMD160().update(data).digest()
|
|
}
|
|
|
|
if (alg === 'rmd160' || alg === 'ripemd160') return rmd160Func
|
|
if (alg === 'md5') return md5
|
|
return shaFunc
|
|
}
|
|
|
|
function pbkdf2 (password, salt, iterations, keylen, digest) {
|
|
checkParameters(password, salt, iterations, keylen)
|
|
|
|
if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)
|
|
if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)
|
|
|
|
digest = digest || 'sha1'
|
|
|
|
var hmac = new Hmac(digest, password, salt.length)
|
|
|
|
var DK = Buffer.allocUnsafe(keylen)
|
|
var block1 = Buffer.allocUnsafe(salt.length + 4)
|
|
salt.copy(block1, 0, 0, salt.length)
|
|
|
|
var destPos = 0
|
|
var hLen = sizes[digest]
|
|
var l = Math.ceil(keylen / hLen)
|
|
|
|
for (var i = 1; i <= l; i++) {
|
|
block1.writeUInt32BE(i, salt.length)
|
|
|
|
var T = hmac.run(block1, hmac.ipad1)
|
|
var U = T
|
|
|
|
for (var j = 1; j < iterations; j++) {
|
|
U = hmac.run(U, hmac.ipad2)
|
|
for (var k = 0; k < hLen; k++) T[k] ^= U[k]
|
|
}
|
|
|
|
T.copy(DK, destPos)
|
|
destPos += hLen
|
|
}
|
|
|
|
return DK
|
|
}
|
|
|
|
module.exports = pbkdf2
|
|
|
|
},{"./default-encoding":113,"./precondition":114,"create-hash/md5":53,"ripemd160":143,"safe-buffer":144,"sha.js":146}],116:[function(require,module,exports){
|
|
(function (process){
|
|
'use strict';
|
|
|
|
if (typeof process === 'undefined' ||
|
|
!process.version ||
|
|
process.version.indexOf('v0.') === 0 ||
|
|
process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
|
|
module.exports = { nextTick: nextTick };
|
|
} else {
|
|
module.exports = process
|
|
}
|
|
|
|
function nextTick(fn, arg1, arg2, arg3) {
|
|
if (typeof fn !== 'function') {
|
|
throw new TypeError('"callback" argument must be a function');
|
|
}
|
|
var len = arguments.length;
|
|
var args, i;
|
|
switch (len) {
|
|
case 0:
|
|
case 1:
|
|
return process.nextTick(fn);
|
|
case 2:
|
|
return process.nextTick(function afterTickOne() {
|
|
fn.call(null, arg1);
|
|
});
|
|
case 3:
|
|
return process.nextTick(function afterTickTwo() {
|
|
fn.call(null, arg1, arg2);
|
|
});
|
|
case 4:
|
|
return process.nextTick(function afterTickThree() {
|
|
fn.call(null, arg1, arg2, arg3);
|
|
});
|
|
default:
|
|
args = new Array(len - 1);
|
|
i = 0;
|
|
while (i < args.length) {
|
|
args[i++] = arguments[i];
|
|
}
|
|
return process.nextTick(function afterTick() {
|
|
fn.apply(null, args);
|
|
});
|
|
}
|
|
}
|
|
|
|
|
|
}).call(this,require('_process'))
|
|
|
|
},{"_process":117}],117:[function(require,module,exports){
|
|
// shim for using process in browser
|
|
var process = module.exports = {};
|
|
|
|
// cached from whatever global is present so that test runners that stub it
|
|
// don't break things. But we need to wrap it in a try catch in case it is
|
|
// wrapped in strict mode code which doesn't define any globals. It's inside a
|
|
// function because try/catches deoptimize in certain engines.
|
|
|
|
var cachedSetTimeout;
|
|
var cachedClearTimeout;
|
|
|
|
function defaultSetTimout() {
|
|
throw new Error('setTimeout has not been defined');
|
|
}
|
|
function defaultClearTimeout () {
|
|
throw new Error('clearTimeout has not been defined');
|
|
}
|
|
(function () {
|
|
try {
|
|
if (typeof setTimeout === 'function') {
|
|
cachedSetTimeout = setTimeout;
|
|
} else {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
} catch (e) {
|
|
cachedSetTimeout = defaultSetTimout;
|
|
}
|
|
try {
|
|
if (typeof clearTimeout === 'function') {
|
|
cachedClearTimeout = clearTimeout;
|
|
} else {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} catch (e) {
|
|
cachedClearTimeout = defaultClearTimeout;
|
|
}
|
|
} ())
|
|
function runTimeout(fun) {
|
|
if (cachedSetTimeout === setTimeout) {
|
|
//normal enviroments in sane situations
|
|
return setTimeout(fun, 0);
|
|
}
|
|
// if setTimeout wasn't available but was latter defined
|
|
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
|
|
cachedSetTimeout = setTimeout;
|
|
return setTimeout(fun, 0);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedSetTimeout(fun, 0);
|
|
} catch(e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedSetTimeout.call(null, fun, 0);
|
|
} catch(e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
|
|
return cachedSetTimeout.call(this, fun, 0);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
function runClearTimeout(marker) {
|
|
if (cachedClearTimeout === clearTimeout) {
|
|
//normal enviroments in sane situations
|
|
return clearTimeout(marker);
|
|
}
|
|
// if clearTimeout wasn't available but was latter defined
|
|
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
|
|
cachedClearTimeout = clearTimeout;
|
|
return clearTimeout(marker);
|
|
}
|
|
try {
|
|
// when when somebody has screwed with setTimeout but no I.E. maddness
|
|
return cachedClearTimeout(marker);
|
|
} catch (e){
|
|
try {
|
|
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
|
|
return cachedClearTimeout.call(null, marker);
|
|
} catch (e){
|
|
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
|
|
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
|
|
return cachedClearTimeout.call(this, marker);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
}
|
|
var queue = [];
|
|
var draining = false;
|
|
var currentQueue;
|
|
var queueIndex = -1;
|
|
|
|
function cleanUpNextTick() {
|
|
if (!draining || !currentQueue) {
|
|
return;
|
|
}
|
|
draining = false;
|
|
if (currentQueue.length) {
|
|
queue = currentQueue.concat(queue);
|
|
} else {
|
|
queueIndex = -1;
|
|
}
|
|
if (queue.length) {
|
|
drainQueue();
|
|
}
|
|
}
|
|
|
|
function drainQueue() {
|
|
if (draining) {
|
|
return;
|
|
}
|
|
var timeout = runTimeout(cleanUpNextTick);
|
|
draining = true;
|
|
|
|
var len = queue.length;
|
|
while(len) {
|
|
currentQueue = queue;
|
|
queue = [];
|
|
while (++queueIndex < len) {
|
|
if (currentQueue) {
|
|
currentQueue[queueIndex].run();
|
|
}
|
|
}
|
|
queueIndex = -1;
|
|
len = queue.length;
|
|
}
|
|
currentQueue = null;
|
|
draining = false;
|
|
runClearTimeout(timeout);
|
|
}
|
|
|
|
process.nextTick = function (fun) {
|
|
var args = new Array(arguments.length - 1);
|
|
if (arguments.length > 1) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
args[i - 1] = arguments[i];
|
|
}
|
|
}
|
|
queue.push(new Item(fun, args));
|
|
if (queue.length === 1 && !draining) {
|
|
runTimeout(drainQueue);
|
|
}
|
|
};
|
|
|
|
// v8 likes predictible objects
|
|
function Item(fun, array) {
|
|
this.fun = fun;
|
|
this.array = array;
|
|
}
|
|
Item.prototype.run = function () {
|
|
this.fun.apply(null, this.array);
|
|
};
|
|
process.title = 'browser';
|
|
process.browser = true;
|
|
process.env = {};
|
|
process.argv = [];
|
|
process.version = ''; // empty string to avoid regexp issues
|
|
process.versions = {};
|
|
|
|
function noop() {}
|
|
|
|
process.on = noop;
|
|
process.addListener = noop;
|
|
process.once = noop;
|
|
process.off = noop;
|
|
process.removeListener = noop;
|
|
process.removeAllListeners = noop;
|
|
process.emit = noop;
|
|
process.prependListener = noop;
|
|
process.prependOnceListener = noop;
|
|
|
|
process.listeners = function (name) { return [] }
|
|
|
|
process.binding = function (name) {
|
|
throw new Error('process.binding is not supported');
|
|
};
|
|
|
|
process.cwd = function () { return '/' };
|
|
process.chdir = function (dir) {
|
|
throw new Error('process.chdir is not supported');
|
|
};
|
|
process.umask = function() { return 0; };
|
|
|
|
},{}],118:[function(require,module,exports){
|
|
'use strict'
|
|
|
|
var messageIds = 0
|
|
|
|
function onMessage (self, e) {
|
|
var message = e.data
|
|
if (!Array.isArray(message) || message.length < 2) {
|
|
// Ignore - this message is not for us.
|
|
return
|
|
}
|
|
var messageId = message[0]
|
|
var error = message[1]
|
|
var result = message[2]
|
|
|
|
var callback = self._callbacks[messageId]
|
|
|
|
if (!callback) {
|
|
// Ignore - user might have created multiple PromiseWorkers.
|
|
// This message is not for us.
|
|
return
|
|
}
|
|
|
|
delete self._callbacks[messageId]
|
|
callback(error, result)
|
|
}
|
|
|
|
function PromiseWorker (worker) {
|
|
var self = this
|
|
self._worker = worker
|
|
self._callbacks = {}
|
|
|
|
worker.addEventListener('message', function (e) {
|
|
onMessage(self, e)
|
|
})
|
|
}
|
|
|
|
PromiseWorker.prototype.postMessage = function (userMessage) {
|
|
var self = this
|
|
var messageId = messageIds++
|
|
|
|
var messageToSend = [messageId, userMessage]
|
|
|
|
return new Promise(function (resolve, reject) {
|
|
self._callbacks[messageId] = function (error, result) {
|
|
if (error) {
|
|
return reject(new Error(error.message))
|
|
}
|
|
resolve(result)
|
|
}
|
|
|
|
/* istanbul ignore if */
|
|
if (typeof self._worker.controller !== 'undefined') {
|
|
// service worker, use MessageChannels because e.source is broken in Chrome < 51:
|
|
// https://bugs.chromium.org/p/chromium/issues/detail?id=543198
|
|
var channel = new MessageChannel()
|
|
channel.port1.onmessage = function (e) {
|
|
onMessage(self, e)
|
|
}
|
|
self._worker.controller.postMessage(messageToSend, [channel.port2])
|
|
} else {
|
|
// web worker
|
|
self._worker.postMessage(messageToSend)
|
|
}
|
|
})
|
|
}
|
|
|
|
module.exports = PromiseWorker
|
|
|
|
},{}],119:[function(require,module,exports){
|
|
exports.publicEncrypt = require('./publicEncrypt')
|
|
exports.privateDecrypt = require('./privateDecrypt')
|
|
|
|
exports.privateEncrypt = function privateEncrypt (key, buf) {
|
|
return exports.publicEncrypt(key, buf, true)
|
|
}
|
|
|
|
exports.publicDecrypt = function publicDecrypt (key, buf) {
|
|
return exports.privateDecrypt(key, buf, true)
|
|
}
|
|
|
|
},{"./privateDecrypt":121,"./publicEncrypt":122}],120:[function(require,module,exports){
|
|
var createHash = require('create-hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
module.exports = function (seed, len) {
|
|
var t = Buffer.alloc(0)
|
|
var i = 0
|
|
var c
|
|
while (t.length < len) {
|
|
c = i2ops(i++)
|
|
t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()])
|
|
}
|
|
return t.slice(0, len)
|
|
}
|
|
|
|
function i2ops (c) {
|
|
var out = Buffer.allocUnsafe(4)
|
|
out.writeUInt32BE(c, 0)
|
|
return out
|
|
}
|
|
|
|
},{"create-hash":52,"safe-buffer":144}],121:[function(require,module,exports){
|
|
var parseKeys = require('parse-asn1')
|
|
var mgf = require('./mgf')
|
|
var xor = require('./xor')
|
|
var BN = require('bn.js')
|
|
var crt = require('browserify-rsa')
|
|
var createHash = require('create-hash')
|
|
var withPublic = require('./withPublic')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
module.exports = function privateDecrypt (privateKey, enc, reverse) {
|
|
var padding
|
|
if (privateKey.padding) {
|
|
padding = privateKey.padding
|
|
} else if (reverse) {
|
|
padding = 1
|
|
} else {
|
|
padding = 4
|
|
}
|
|
|
|
var key = parseKeys(privateKey)
|
|
var k = key.modulus.byteLength()
|
|
if (enc.length > k || new BN(enc).cmp(key.modulus) >= 0) {
|
|
throw new Error('decryption error')
|
|
}
|
|
var msg
|
|
if (reverse) {
|
|
msg = withPublic(new BN(enc), key)
|
|
} else {
|
|
msg = crt(enc, key)
|
|
}
|
|
var zBuffer = Buffer.alloc(k - msg.length)
|
|
msg = Buffer.concat([zBuffer, msg], k)
|
|
if (padding === 4) {
|
|
return oaep(key, msg)
|
|
} else if (padding === 1) {
|
|
return pkcs1(key, msg, reverse)
|
|
} else if (padding === 3) {
|
|
return msg
|
|
} else {
|
|
throw new Error('unknown padding')
|
|
}
|
|
}
|
|
|
|
function oaep (key, msg) {
|
|
var k = key.modulus.byteLength()
|
|
var iHash = createHash('sha1').update(Buffer.alloc(0)).digest()
|
|
var hLen = iHash.length
|
|
if (msg[0] !== 0) {
|
|
throw new Error('decryption error')
|
|
}
|
|
var maskedSeed = msg.slice(1, hLen + 1)
|
|
var maskedDb = msg.slice(hLen + 1)
|
|
var seed = xor(maskedSeed, mgf(maskedDb, hLen))
|
|
var db = xor(maskedDb, mgf(seed, k - hLen - 1))
|
|
if (compare(iHash, db.slice(0, hLen))) {
|
|
throw new Error('decryption error')
|
|
}
|
|
var i = hLen
|
|
while (db[i] === 0) {
|
|
i++
|
|
}
|
|
if (db[i++] !== 1) {
|
|
throw new Error('decryption error')
|
|
}
|
|
return db.slice(i)
|
|
}
|
|
|
|
function pkcs1 (key, msg, reverse) {
|
|
var p1 = msg.slice(0, 2)
|
|
var i = 2
|
|
var status = 0
|
|
while (msg[i++] !== 0) {
|
|
if (i >= msg.length) {
|
|
status++
|
|
break
|
|
}
|
|
}
|
|
var ps = msg.slice(2, i - 1)
|
|
|
|
if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)) {
|
|
status++
|
|
}
|
|
if (ps.length < 8) {
|
|
status++
|
|
}
|
|
if (status) {
|
|
throw new Error('decryption error')
|
|
}
|
|
return msg.slice(i)
|
|
}
|
|
function compare (a, b) {
|
|
a = Buffer.from(a)
|
|
b = Buffer.from(b)
|
|
var dif = 0
|
|
var len = a.length
|
|
if (a.length !== b.length) {
|
|
dif++
|
|
len = Math.min(a.length, b.length)
|
|
}
|
|
var i = -1
|
|
while (++i < len) {
|
|
dif += (a[i] ^ b[i])
|
|
}
|
|
return dif
|
|
}
|
|
|
|
},{"./mgf":120,"./withPublic":123,"./xor":124,"bn.js":16,"browserify-rsa":39,"create-hash":52,"parse-asn1":110,"safe-buffer":144}],122:[function(require,module,exports){
|
|
var parseKeys = require('parse-asn1')
|
|
var randomBytes = require('randombytes')
|
|
var createHash = require('create-hash')
|
|
var mgf = require('./mgf')
|
|
var xor = require('./xor')
|
|
var BN = require('bn.js')
|
|
var withPublic = require('./withPublic')
|
|
var crt = require('browserify-rsa')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
module.exports = function publicEncrypt (publicKey, msg, reverse) {
|
|
var padding
|
|
if (publicKey.padding) {
|
|
padding = publicKey.padding
|
|
} else if (reverse) {
|
|
padding = 1
|
|
} else {
|
|
padding = 4
|
|
}
|
|
var key = parseKeys(publicKey)
|
|
var paddedMsg
|
|
if (padding === 4) {
|
|
paddedMsg = oaep(key, msg)
|
|
} else if (padding === 1) {
|
|
paddedMsg = pkcs1(key, msg, reverse)
|
|
} else if (padding === 3) {
|
|
paddedMsg = new BN(msg)
|
|
if (paddedMsg.cmp(key.modulus) >= 0) {
|
|
throw new Error('data too long for modulus')
|
|
}
|
|
} else {
|
|
throw new Error('unknown padding')
|
|
}
|
|
if (reverse) {
|
|
return crt(paddedMsg, key)
|
|
} else {
|
|
return withPublic(paddedMsg, key)
|
|
}
|
|
}
|
|
|
|
function oaep (key, msg) {
|
|
var k = key.modulus.byteLength()
|
|
var mLen = msg.length
|
|
var iHash = createHash('sha1').update(Buffer.alloc(0)).digest()
|
|
var hLen = iHash.length
|
|
var hLen2 = 2 * hLen
|
|
if (mLen > k - hLen2 - 2) {
|
|
throw new Error('message too long')
|
|
}
|
|
var ps = Buffer.alloc(k - mLen - hLen2 - 2)
|
|
var dblen = k - hLen - 1
|
|
var seed = randomBytes(hLen)
|
|
var maskedDb = xor(Buffer.concat([iHash, ps, Buffer.alloc(1, 1), msg], dblen), mgf(seed, dblen))
|
|
var maskedSeed = xor(seed, mgf(maskedDb, hLen))
|
|
return new BN(Buffer.concat([Buffer.alloc(1), maskedSeed, maskedDb], k))
|
|
}
|
|
function pkcs1 (key, msg, reverse) {
|
|
var mLen = msg.length
|
|
var k = key.modulus.byteLength()
|
|
if (mLen > k - 11) {
|
|
throw new Error('message too long')
|
|
}
|
|
var ps
|
|
if (reverse) {
|
|
ps = Buffer.alloc(k - mLen - 3, 0xff)
|
|
} else {
|
|
ps = nonZero(k - mLen - 3)
|
|
}
|
|
return new BN(Buffer.concat([Buffer.from([0, reverse ? 1 : 2]), ps, Buffer.alloc(1), msg], k))
|
|
}
|
|
function nonZero (len) {
|
|
var out = Buffer.allocUnsafe(len)
|
|
var i = 0
|
|
var cache = randomBytes(len * 2)
|
|
var cur = 0
|
|
var num
|
|
while (i < len) {
|
|
if (cur === cache.length) {
|
|
cache = randomBytes(len * 2)
|
|
cur = 0
|
|
}
|
|
num = cache[cur++]
|
|
if (num) {
|
|
out[i++] = num
|
|
}
|
|
}
|
|
return out
|
|
}
|
|
|
|
},{"./mgf":120,"./withPublic":123,"./xor":124,"bn.js":16,"browserify-rsa":39,"create-hash":52,"parse-asn1":110,"randombytes":125,"safe-buffer":144}],123:[function(require,module,exports){
|
|
var BN = require('bn.js')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
function withPublic (paddedMsg, key) {
|
|
return Buffer.from(paddedMsg
|
|
.toRed(BN.mont(key.modulus))
|
|
.redPow(new BN(key.publicExponent))
|
|
.fromRed()
|
|
.toArray())
|
|
}
|
|
|
|
module.exports = withPublic
|
|
|
|
},{"bn.js":16,"safe-buffer":144}],124:[function(require,module,exports){
|
|
module.exports = function xor (a, b) {
|
|
var len = a.length
|
|
var i = -1
|
|
while (++i < len) {
|
|
a[i] ^= b[i]
|
|
}
|
|
return a
|
|
}
|
|
|
|
},{}],125:[function(require,module,exports){
|
|
(function (process,global){
|
|
'use strict'
|
|
|
|
// limit of Crypto.getRandomValues()
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues
|
|
var MAX_BYTES = 65536
|
|
|
|
// Node supports requesting up to this number of bytes
|
|
// https://github.com/nodejs/node/blob/master/lib/internal/crypto/random.js#L48
|
|
var MAX_UINT32 = 4294967295
|
|
|
|
function oldBrowser () {
|
|
throw new Error('Secure random number generation is not supported by this browser.\nUse Chrome, Firefox or Internet Explorer 11')
|
|
}
|
|
|
|
var Buffer = require('safe-buffer').Buffer
|
|
var crypto = global.crypto || global.msCrypto
|
|
|
|
if (crypto && crypto.getRandomValues) {
|
|
module.exports = randomBytes
|
|
} else {
|
|
module.exports = oldBrowser
|
|
}
|
|
|
|
function randomBytes (size, cb) {
|
|
// phantomjs needs to throw
|
|
if (size > MAX_UINT32) throw new RangeError('requested too many random bytes')
|
|
|
|
var bytes = Buffer.allocUnsafe(size)
|
|
|
|
if (size > 0) { // getRandomValues fails on IE if size == 0
|
|
if (size > MAX_BYTES) { // this is the max bytes crypto.getRandomValues
|
|
// can do at once see https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
|
|
for (var generated = 0; generated < size; generated += MAX_BYTES) {
|
|
// buffer.slice automatically checks if the end is past the end of
|
|
// the buffer so we don't have to here
|
|
crypto.getRandomValues(bytes.slice(generated, generated + MAX_BYTES))
|
|
}
|
|
} else {
|
|
crypto.getRandomValues(bytes)
|
|
}
|
|
}
|
|
|
|
if (typeof cb === 'function') {
|
|
return process.nextTick(function () {
|
|
cb(null, bytes)
|
|
})
|
|
}
|
|
|
|
return bytes
|
|
}
|
|
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"_process":117,"safe-buffer":144}],126:[function(require,module,exports){
|
|
(function (process,global){
|
|
'use strict'
|
|
|
|
function oldBrowser () {
|
|
throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
|
|
}
|
|
var safeBuffer = require('safe-buffer')
|
|
var randombytes = require('randombytes')
|
|
var Buffer = safeBuffer.Buffer
|
|
var kBufferMaxLength = safeBuffer.kMaxLength
|
|
var crypto = global.crypto || global.msCrypto
|
|
var kMaxUint32 = Math.pow(2, 32) - 1
|
|
function assertOffset (offset, length) {
|
|
if (typeof offset !== 'number' || offset !== offset) { // eslint-disable-line no-self-compare
|
|
throw new TypeError('offset must be a number')
|
|
}
|
|
|
|
if (offset > kMaxUint32 || offset < 0) {
|
|
throw new TypeError('offset must be a uint32')
|
|
}
|
|
|
|
if (offset > kBufferMaxLength || offset > length) {
|
|
throw new RangeError('offset out of range')
|
|
}
|
|
}
|
|
|
|
function assertSize (size, offset, length) {
|
|
if (typeof size !== 'number' || size !== size) { // eslint-disable-line no-self-compare
|
|
throw new TypeError('size must be a number')
|
|
}
|
|
|
|
if (size > kMaxUint32 || size < 0) {
|
|
throw new TypeError('size must be a uint32')
|
|
}
|
|
|
|
if (size + offset > length || size > kBufferMaxLength) {
|
|
throw new RangeError('buffer too small')
|
|
}
|
|
}
|
|
if ((crypto && crypto.getRandomValues) || !process.browser) {
|
|
exports.randomFill = randomFill
|
|
exports.randomFillSync = randomFillSync
|
|
} else {
|
|
exports.randomFill = oldBrowser
|
|
exports.randomFillSync = oldBrowser
|
|
}
|
|
function randomFill (buf, offset, size, cb) {
|
|
if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {
|
|
throw new TypeError('"buf" argument must be a Buffer or Uint8Array')
|
|
}
|
|
|
|
if (typeof offset === 'function') {
|
|
cb = offset
|
|
offset = 0
|
|
size = buf.length
|
|
} else if (typeof size === 'function') {
|
|
cb = size
|
|
size = buf.length - offset
|
|
} else if (typeof cb !== 'function') {
|
|
throw new TypeError('"cb" argument must be a function')
|
|
}
|
|
assertOffset(offset, buf.length)
|
|
assertSize(size, offset, buf.length)
|
|
return actualFill(buf, offset, size, cb)
|
|
}
|
|
|
|
function actualFill (buf, offset, size, cb) {
|
|
if (process.browser) {
|
|
var ourBuf = buf.buffer
|
|
var uint = new Uint8Array(ourBuf, offset, size)
|
|
crypto.getRandomValues(uint)
|
|
if (cb) {
|
|
process.nextTick(function () {
|
|
cb(null, buf)
|
|
})
|
|
return
|
|
}
|
|
return buf
|
|
}
|
|
if (cb) {
|
|
randombytes(size, function (err, bytes) {
|
|
if (err) {
|
|
return cb(err)
|
|
}
|
|
bytes.copy(buf, offset)
|
|
cb(null, buf)
|
|
})
|
|
return
|
|
}
|
|
var bytes = randombytes(size)
|
|
bytes.copy(buf, offset)
|
|
return buf
|
|
}
|
|
function randomFillSync (buf, offset, size) {
|
|
if (typeof offset === 'undefined') {
|
|
offset = 0
|
|
}
|
|
if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {
|
|
throw new TypeError('"buf" argument must be a Buffer or Uint8Array')
|
|
}
|
|
|
|
assertOffset(offset, buf.length)
|
|
|
|
if (size === undefined) size = buf.length - offset
|
|
|
|
assertSize(size, offset, buf.length)
|
|
|
|
return actualFill(buf, offset, size)
|
|
}
|
|
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"_process":117,"randombytes":125,"safe-buffer":144}],127:[function(require,module,exports){
|
|
module.exports = require('./lib/_stream_duplex.js');
|
|
|
|
},{"./lib/_stream_duplex.js":128}],128:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// a duplex stream is just a stream that is both readable and writable.
|
|
// Since JS doesn't have multiple prototypal inheritance, this class
|
|
// prototypally inherits from Readable, and then parasitically from
|
|
// Writable.
|
|
|
|
'use strict';
|
|
|
|
/*<replacement>*/
|
|
|
|
var pna = require('process-nextick-args');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var objectKeys = Object.keys || function (obj) {
|
|
var keys = [];
|
|
for (var key in obj) {
|
|
keys.push(key);
|
|
}return keys;
|
|
};
|
|
/*</replacement>*/
|
|
|
|
module.exports = Duplex;
|
|
|
|
/*<replacement>*/
|
|
var util = require('core-util-is');
|
|
util.inherits = require('inherits');
|
|
/*</replacement>*/
|
|
|
|
var Readable = require('./_stream_readable');
|
|
var Writable = require('./_stream_writable');
|
|
|
|
util.inherits(Duplex, Readable);
|
|
|
|
{
|
|
// avoid scope creep, the keys array can then be collected
|
|
var keys = objectKeys(Writable.prototype);
|
|
for (var v = 0; v < keys.length; v++) {
|
|
var method = keys[v];
|
|
if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
|
|
}
|
|
}
|
|
|
|
function Duplex(options) {
|
|
if (!(this instanceof Duplex)) return new Duplex(options);
|
|
|
|
Readable.call(this, options);
|
|
Writable.call(this, options);
|
|
|
|
if (options && options.readable === false) this.readable = false;
|
|
|
|
if (options && options.writable === false) this.writable = false;
|
|
|
|
this.allowHalfOpen = true;
|
|
if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
|
|
|
|
this.once('end', onend);
|
|
}
|
|
|
|
Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function () {
|
|
return this._writableState.highWaterMark;
|
|
}
|
|
});
|
|
|
|
// the no-half-open enforcer
|
|
function onend() {
|
|
// if we allow half-open state, or if the writable side ended,
|
|
// then we're ok.
|
|
if (this.allowHalfOpen || this._writableState.ended) return;
|
|
|
|
// no more data can be written.
|
|
// But allow more writes to happen in this tick.
|
|
pna.nextTick(onEndNT, this);
|
|
}
|
|
|
|
function onEndNT(self) {
|
|
self.end();
|
|
}
|
|
|
|
Object.defineProperty(Duplex.prototype, 'destroyed', {
|
|
get: function () {
|
|
if (this._readableState === undefined || this._writableState === undefined) {
|
|
return false;
|
|
}
|
|
return this._readableState.destroyed && this._writableState.destroyed;
|
|
},
|
|
set: function (value) {
|
|
// we ignore the value if the stream
|
|
// has not been initialized yet
|
|
if (this._readableState === undefined || this._writableState === undefined) {
|
|
return;
|
|
}
|
|
|
|
// backward compatibility, the user is explicitly
|
|
// managing destroyed
|
|
this._readableState.destroyed = value;
|
|
this._writableState.destroyed = value;
|
|
}
|
|
});
|
|
|
|
Duplex.prototype._destroy = function (err, cb) {
|
|
this.push(null);
|
|
this.end();
|
|
|
|
pna.nextTick(cb, err);
|
|
};
|
|
},{"./_stream_readable":130,"./_stream_writable":132,"core-util-is":50,"inherits":100,"process-nextick-args":116}],129:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// a passthrough stream.
|
|
// basically just the most minimal sort of Transform stream.
|
|
// Every written chunk gets output as-is.
|
|
|
|
'use strict';
|
|
|
|
module.exports = PassThrough;
|
|
|
|
var Transform = require('./_stream_transform');
|
|
|
|
/*<replacement>*/
|
|
var util = require('core-util-is');
|
|
util.inherits = require('inherits');
|
|
/*</replacement>*/
|
|
|
|
util.inherits(PassThrough, Transform);
|
|
|
|
function PassThrough(options) {
|
|
if (!(this instanceof PassThrough)) return new PassThrough(options);
|
|
|
|
Transform.call(this, options);
|
|
}
|
|
|
|
PassThrough.prototype._transform = function (chunk, encoding, cb) {
|
|
cb(null, chunk);
|
|
};
|
|
},{"./_stream_transform":131,"core-util-is":50,"inherits":100}],130:[function(require,module,exports){
|
|
(function (process,global){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
'use strict';
|
|
|
|
/*<replacement>*/
|
|
|
|
var pna = require('process-nextick-args');
|
|
/*</replacement>*/
|
|
|
|
module.exports = Readable;
|
|
|
|
/*<replacement>*/
|
|
var isArray = require('isarray');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var Duplex;
|
|
/*</replacement>*/
|
|
|
|
Readable.ReadableState = ReadableState;
|
|
|
|
/*<replacement>*/
|
|
var EE = require('events').EventEmitter;
|
|
|
|
var EElistenerCount = function (emitter, type) {
|
|
return emitter.listeners(type).length;
|
|
};
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var Stream = require('./internal/streams/stream');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
var OurUint8Array = global.Uint8Array || function () {};
|
|
function _uint8ArrayToBuffer(chunk) {
|
|
return Buffer.from(chunk);
|
|
}
|
|
function _isUint8Array(obj) {
|
|
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
|
|
}
|
|
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var util = require('core-util-is');
|
|
util.inherits = require('inherits');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var debugUtil = require('util');
|
|
var debug = void 0;
|
|
if (debugUtil && debugUtil.debuglog) {
|
|
debug = debugUtil.debuglog('stream');
|
|
} else {
|
|
debug = function () {};
|
|
}
|
|
/*</replacement>*/
|
|
|
|
var BufferList = require('./internal/streams/BufferList');
|
|
var destroyImpl = require('./internal/streams/destroy');
|
|
var StringDecoder;
|
|
|
|
util.inherits(Readable, Stream);
|
|
|
|
var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
|
|
|
|
function prependListener(emitter, event, fn) {
|
|
// Sadly this is not cacheable as some libraries bundle their own
|
|
// event emitter implementation with them.
|
|
if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
|
|
|
|
// This is a hack to make sure that our error handler is attached before any
|
|
// userland ones. NEVER DO THIS. This is here only because this code needs
|
|
// to continue to work with older versions of Node.js that do not include
|
|
// the prependListener() method. The goal is to eventually remove this hack.
|
|
if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
|
|
}
|
|
|
|
function ReadableState(options, stream) {
|
|
Duplex = Duplex || require('./_stream_duplex');
|
|
|
|
options = options || {};
|
|
|
|
// Duplex streams are both readable and writable, but share
|
|
// the same options object.
|
|
// However, some cases require setting options to different
|
|
// values for the readable and the writable sides of the duplex stream.
|
|
// These options can be provided separately as readableXXX and writableXXX.
|
|
var isDuplex = stream instanceof Duplex;
|
|
|
|
// object stream flag. Used to make read(n) ignore n and to
|
|
// make all the buffer merging and length checks go away
|
|
this.objectMode = !!options.objectMode;
|
|
|
|
if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
|
|
|
|
// the point at which it stops calling _read() to fill the buffer
|
|
// Note: 0 is a valid value, means "don't call _read preemptively ever"
|
|
var hwm = options.highWaterMark;
|
|
var readableHwm = options.readableHighWaterMark;
|
|
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
|
|
|
|
if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
|
|
|
|
// cast to ints.
|
|
this.highWaterMark = Math.floor(this.highWaterMark);
|
|
|
|
// A linked list is used to store data chunks instead of an array because the
|
|
// linked list can remove elements from the beginning faster than
|
|
// array.shift()
|
|
this.buffer = new BufferList();
|
|
this.length = 0;
|
|
this.pipes = null;
|
|
this.pipesCount = 0;
|
|
this.flowing = null;
|
|
this.ended = false;
|
|
this.endEmitted = false;
|
|
this.reading = false;
|
|
|
|
// a flag to be able to tell if the event 'readable'/'data' is emitted
|
|
// immediately, or on a later tick. We set this to true at first, because
|
|
// any actions that shouldn't happen until "later" should generally also
|
|
// not happen before the first read call.
|
|
this.sync = true;
|
|
|
|
// whenever we return null, then we set a flag to say
|
|
// that we're awaiting a 'readable' event emission.
|
|
this.needReadable = false;
|
|
this.emittedReadable = false;
|
|
this.readableListening = false;
|
|
this.resumeScheduled = false;
|
|
|
|
// has it been destroyed
|
|
this.destroyed = false;
|
|
|
|
// Crypto is kind of old and crusty. Historically, its default string
|
|
// encoding is 'binary' so we have to make this configurable.
|
|
// Everything else in the universe uses 'utf8', though.
|
|
this.defaultEncoding = options.defaultEncoding || 'utf8';
|
|
|
|
// the number of writers that are awaiting a drain event in .pipe()s
|
|
this.awaitDrain = 0;
|
|
|
|
// if true, a maybeReadMore has been scheduled
|
|
this.readingMore = false;
|
|
|
|
this.decoder = null;
|
|
this.encoding = null;
|
|
if (options.encoding) {
|
|
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
|
|
this.decoder = new StringDecoder(options.encoding);
|
|
this.encoding = options.encoding;
|
|
}
|
|
}
|
|
|
|
function Readable(options) {
|
|
Duplex = Duplex || require('./_stream_duplex');
|
|
|
|
if (!(this instanceof Readable)) return new Readable(options);
|
|
|
|
this._readableState = new ReadableState(options, this);
|
|
|
|
// legacy
|
|
this.readable = true;
|
|
|
|
if (options) {
|
|
if (typeof options.read === 'function') this._read = options.read;
|
|
|
|
if (typeof options.destroy === 'function') this._destroy = options.destroy;
|
|
}
|
|
|
|
Stream.call(this);
|
|
}
|
|
|
|
Object.defineProperty(Readable.prototype, 'destroyed', {
|
|
get: function () {
|
|
if (this._readableState === undefined) {
|
|
return false;
|
|
}
|
|
return this._readableState.destroyed;
|
|
},
|
|
set: function (value) {
|
|
// we ignore the value if the stream
|
|
// has not been initialized yet
|
|
if (!this._readableState) {
|
|
return;
|
|
}
|
|
|
|
// backward compatibility, the user is explicitly
|
|
// managing destroyed
|
|
this._readableState.destroyed = value;
|
|
}
|
|
});
|
|
|
|
Readable.prototype.destroy = destroyImpl.destroy;
|
|
Readable.prototype._undestroy = destroyImpl.undestroy;
|
|
Readable.prototype._destroy = function (err, cb) {
|
|
this.push(null);
|
|
cb(err);
|
|
};
|
|
|
|
// Manually shove something into the read() buffer.
|
|
// This returns true if the highWaterMark has not been hit yet,
|
|
// similar to how Writable.write() returns true if you should
|
|
// write() some more.
|
|
Readable.prototype.push = function (chunk, encoding) {
|
|
var state = this._readableState;
|
|
var skipChunkCheck;
|
|
|
|
if (!state.objectMode) {
|
|
if (typeof chunk === 'string') {
|
|
encoding = encoding || state.defaultEncoding;
|
|
if (encoding !== state.encoding) {
|
|
chunk = Buffer.from(chunk, encoding);
|
|
encoding = '';
|
|
}
|
|
skipChunkCheck = true;
|
|
}
|
|
} else {
|
|
skipChunkCheck = true;
|
|
}
|
|
|
|
return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
|
|
};
|
|
|
|
// Unshift should *always* be something directly out of read()
|
|
Readable.prototype.unshift = function (chunk) {
|
|
return readableAddChunk(this, chunk, null, true, false);
|
|
};
|
|
|
|
function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
|
|
var state = stream._readableState;
|
|
if (chunk === null) {
|
|
state.reading = false;
|
|
onEofChunk(stream, state);
|
|
} else {
|
|
var er;
|
|
if (!skipChunkCheck) er = chunkInvalid(state, chunk);
|
|
if (er) {
|
|
stream.emit('error', er);
|
|
} else if (state.objectMode || chunk && chunk.length > 0) {
|
|
if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
|
|
chunk = _uint8ArrayToBuffer(chunk);
|
|
}
|
|
|
|
if (addToFront) {
|
|
if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
|
|
} else if (state.ended) {
|
|
stream.emit('error', new Error('stream.push() after EOF'));
|
|
} else {
|
|
state.reading = false;
|
|
if (state.decoder && !encoding) {
|
|
chunk = state.decoder.write(chunk);
|
|
if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
|
|
} else {
|
|
addChunk(stream, state, chunk, false);
|
|
}
|
|
}
|
|
} else if (!addToFront) {
|
|
state.reading = false;
|
|
}
|
|
}
|
|
|
|
return needMoreData(state);
|
|
}
|
|
|
|
function addChunk(stream, state, chunk, addToFront) {
|
|
if (state.flowing && state.length === 0 && !state.sync) {
|
|
stream.emit('data', chunk);
|
|
stream.read(0);
|
|
} else {
|
|
// update the buffer info.
|
|
state.length += state.objectMode ? 1 : chunk.length;
|
|
if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
|
|
|
|
if (state.needReadable) emitReadable(stream);
|
|
}
|
|
maybeReadMore(stream, state);
|
|
}
|
|
|
|
function chunkInvalid(state, chunk) {
|
|
var er;
|
|
if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
|
|
er = new TypeError('Invalid non-string/buffer chunk');
|
|
}
|
|
return er;
|
|
}
|
|
|
|
// if it's past the high water mark, we can push in some more.
|
|
// Also, if we have no data yet, we can stand some
|
|
// more bytes. This is to work around cases where hwm=0,
|
|
// such as the repl. Also, if the push() triggered a
|
|
// readable event, and the user called read(largeNumber) such that
|
|
// needReadable was set, then we ought to push more, so that another
|
|
// 'readable' event will be triggered.
|
|
function needMoreData(state) {
|
|
return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
|
|
}
|
|
|
|
Readable.prototype.isPaused = function () {
|
|
return this._readableState.flowing === false;
|
|
};
|
|
|
|
// backwards compatibility.
|
|
Readable.prototype.setEncoding = function (enc) {
|
|
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
|
|
this._readableState.decoder = new StringDecoder(enc);
|
|
this._readableState.encoding = enc;
|
|
return this;
|
|
};
|
|
|
|
// Don't raise the hwm > 8MB
|
|
var MAX_HWM = 0x800000;
|
|
function computeNewHighWaterMark(n) {
|
|
if (n >= MAX_HWM) {
|
|
n = MAX_HWM;
|
|
} else {
|
|
// Get the next highest power of 2 to prevent increasing hwm excessively in
|
|
// tiny amounts
|
|
n--;
|
|
n |= n >>> 1;
|
|
n |= n >>> 2;
|
|
n |= n >>> 4;
|
|
n |= n >>> 8;
|
|
n |= n >>> 16;
|
|
n++;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
// This function is designed to be inlinable, so please take care when making
|
|
// changes to the function body.
|
|
function howMuchToRead(n, state) {
|
|
if (n <= 0 || state.length === 0 && state.ended) return 0;
|
|
if (state.objectMode) return 1;
|
|
if (n !== n) {
|
|
// Only flow one buffer at a time
|
|
if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
|
|
}
|
|
// If we're asking for more than the current hwm, then raise the hwm.
|
|
if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
|
|
if (n <= state.length) return n;
|
|
// Don't have enough
|
|
if (!state.ended) {
|
|
state.needReadable = true;
|
|
return 0;
|
|
}
|
|
return state.length;
|
|
}
|
|
|
|
// you can override either this method, or the async _read(n) below.
|
|
Readable.prototype.read = function (n) {
|
|
debug('read', n);
|
|
n = parseInt(n, 10);
|
|
var state = this._readableState;
|
|
var nOrig = n;
|
|
|
|
if (n !== 0) state.emittedReadable = false;
|
|
|
|
// if we're doing read(0) to trigger a readable event, but we
|
|
// already have a bunch of data in the buffer, then just trigger
|
|
// the 'readable' event and move on.
|
|
if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
|
|
debug('read: emitReadable', state.length, state.ended);
|
|
if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
|
|
return null;
|
|
}
|
|
|
|
n = howMuchToRead(n, state);
|
|
|
|
// if we've ended, and we're now clear, then finish it up.
|
|
if (n === 0 && state.ended) {
|
|
if (state.length === 0) endReadable(this);
|
|
return null;
|
|
}
|
|
|
|
// All the actual chunk generation logic needs to be
|
|
// *below* the call to _read. The reason is that in certain
|
|
// synthetic stream cases, such as passthrough streams, _read
|
|
// may be a completely synchronous operation which may change
|
|
// the state of the read buffer, providing enough data when
|
|
// before there was *not* enough.
|
|
//
|
|
// So, the steps are:
|
|
// 1. Figure out what the state of things will be after we do
|
|
// a read from the buffer.
|
|
//
|
|
// 2. If that resulting state will trigger a _read, then call _read.
|
|
// Note that this may be asynchronous, or synchronous. Yes, it is
|
|
// deeply ugly to write APIs this way, but that still doesn't mean
|
|
// that the Readable class should behave improperly, as streams are
|
|
// designed to be sync/async agnostic.
|
|
// Take note if the _read call is sync or async (ie, if the read call
|
|
// has returned yet), so that we know whether or not it's safe to emit
|
|
// 'readable' etc.
|
|
//
|
|
// 3. Actually pull the requested chunks out of the buffer and return.
|
|
|
|
// if we need a readable event, then we need to do some reading.
|
|
var doRead = state.needReadable;
|
|
debug('need readable', doRead);
|
|
|
|
// if we currently have less than the highWaterMark, then also read some
|
|
if (state.length === 0 || state.length - n < state.highWaterMark) {
|
|
doRead = true;
|
|
debug('length less than watermark', doRead);
|
|
}
|
|
|
|
// however, if we've ended, then there's no point, and if we're already
|
|
// reading, then it's unnecessary.
|
|
if (state.ended || state.reading) {
|
|
doRead = false;
|
|
debug('reading or ended', doRead);
|
|
} else if (doRead) {
|
|
debug('do read');
|
|
state.reading = true;
|
|
state.sync = true;
|
|
// if the length is currently zero, then we *need* a readable event.
|
|
if (state.length === 0) state.needReadable = true;
|
|
// call internal read method
|
|
this._read(state.highWaterMark);
|
|
state.sync = false;
|
|
// If _read pushed data synchronously, then `reading` will be false,
|
|
// and we need to re-evaluate how much data we can return to the user.
|
|
if (!state.reading) n = howMuchToRead(nOrig, state);
|
|
}
|
|
|
|
var ret;
|
|
if (n > 0) ret = fromList(n, state);else ret = null;
|
|
|
|
if (ret === null) {
|
|
state.needReadable = true;
|
|
n = 0;
|
|
} else {
|
|
state.length -= n;
|
|
}
|
|
|
|
if (state.length === 0) {
|
|
// If we have nothing in the buffer, then we want to know
|
|
// as soon as we *do* get something into the buffer.
|
|
if (!state.ended) state.needReadable = true;
|
|
|
|
// If we tried to read() past the EOF, then emit end on the next tick.
|
|
if (nOrig !== n && state.ended) endReadable(this);
|
|
}
|
|
|
|
if (ret !== null) this.emit('data', ret);
|
|
|
|
return ret;
|
|
};
|
|
|
|
function onEofChunk(stream, state) {
|
|
if (state.ended) return;
|
|
if (state.decoder) {
|
|
var chunk = state.decoder.end();
|
|
if (chunk && chunk.length) {
|
|
state.buffer.push(chunk);
|
|
state.length += state.objectMode ? 1 : chunk.length;
|
|
}
|
|
}
|
|
state.ended = true;
|
|
|
|
// emit 'readable' now to make sure it gets picked up.
|
|
emitReadable(stream);
|
|
}
|
|
|
|
// Don't emit readable right away in sync mode, because this can trigger
|
|
// another read() call => stack overflow. This way, it might trigger
|
|
// a nextTick recursion warning, but that's not so bad.
|
|
function emitReadable(stream) {
|
|
var state = stream._readableState;
|
|
state.needReadable = false;
|
|
if (!state.emittedReadable) {
|
|
debug('emitReadable', state.flowing);
|
|
state.emittedReadable = true;
|
|
if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
|
|
}
|
|
}
|
|
|
|
function emitReadable_(stream) {
|
|
debug('emit readable');
|
|
stream.emit('readable');
|
|
flow(stream);
|
|
}
|
|
|
|
// at this point, the user has presumably seen the 'readable' event,
|
|
// and called read() to consume some data. that may have triggered
|
|
// in turn another _read(n) call, in which case reading = true if
|
|
// it's in progress.
|
|
// However, if we're not ended, or reading, and the length < hwm,
|
|
// then go ahead and try to read some more preemptively.
|
|
function maybeReadMore(stream, state) {
|
|
if (!state.readingMore) {
|
|
state.readingMore = true;
|
|
pna.nextTick(maybeReadMore_, stream, state);
|
|
}
|
|
}
|
|
|
|
function maybeReadMore_(stream, state) {
|
|
var len = state.length;
|
|
while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
|
|
debug('maybeReadMore read 0');
|
|
stream.read(0);
|
|
if (len === state.length)
|
|
// didn't get any data, stop spinning.
|
|
break;else len = state.length;
|
|
}
|
|
state.readingMore = false;
|
|
}
|
|
|
|
// abstract method. to be overridden in specific implementation classes.
|
|
// call cb(er, data) where data is <= n in length.
|
|
// for virtual (non-string, non-buffer) streams, "length" is somewhat
|
|
// arbitrary, and perhaps not very meaningful.
|
|
Readable.prototype._read = function (n) {
|
|
this.emit('error', new Error('_read() is not implemented'));
|
|
};
|
|
|
|
Readable.prototype.pipe = function (dest, pipeOpts) {
|
|
var src = this;
|
|
var state = this._readableState;
|
|
|
|
switch (state.pipesCount) {
|
|
case 0:
|
|
state.pipes = dest;
|
|
break;
|
|
case 1:
|
|
state.pipes = [state.pipes, dest];
|
|
break;
|
|
default:
|
|
state.pipes.push(dest);
|
|
break;
|
|
}
|
|
state.pipesCount += 1;
|
|
debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
|
|
|
|
var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
|
|
|
|
var endFn = doEnd ? onend : unpipe;
|
|
if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
|
|
|
|
dest.on('unpipe', onunpipe);
|
|
function onunpipe(readable, unpipeInfo) {
|
|
debug('onunpipe');
|
|
if (readable === src) {
|
|
if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
|
|
unpipeInfo.hasUnpiped = true;
|
|
cleanup();
|
|
}
|
|
}
|
|
}
|
|
|
|
function onend() {
|
|
debug('onend');
|
|
dest.end();
|
|
}
|
|
|
|
// when the dest drains, it reduces the awaitDrain counter
|
|
// on the source. This would be more elegant with a .once()
|
|
// handler in flow(), but adding and removing repeatedly is
|
|
// too slow.
|
|
var ondrain = pipeOnDrain(src);
|
|
dest.on('drain', ondrain);
|
|
|
|
var cleanedUp = false;
|
|
function cleanup() {
|
|
debug('cleanup');
|
|
// cleanup event handlers once the pipe is broken
|
|
dest.removeListener('close', onclose);
|
|
dest.removeListener('finish', onfinish);
|
|
dest.removeListener('drain', ondrain);
|
|
dest.removeListener('error', onerror);
|
|
dest.removeListener('unpipe', onunpipe);
|
|
src.removeListener('end', onend);
|
|
src.removeListener('end', unpipe);
|
|
src.removeListener('data', ondata);
|
|
|
|
cleanedUp = true;
|
|
|
|
// if the reader is waiting for a drain event from this
|
|
// specific writer, then it would cause it to never start
|
|
// flowing again.
|
|
// So, if this is awaiting a drain, then we just call it now.
|
|
// If we don't know, then assume that we are waiting for one.
|
|
if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
|
|
}
|
|
|
|
// If the user pushes more data while we're writing to dest then we'll end up
|
|
// in ondata again. However, we only want to increase awaitDrain once because
|
|
// dest will only emit one 'drain' event for the multiple writes.
|
|
// => Introduce a guard on increasing awaitDrain.
|
|
var increasedAwaitDrain = false;
|
|
src.on('data', ondata);
|
|
function ondata(chunk) {
|
|
debug('ondata');
|
|
increasedAwaitDrain = false;
|
|
var ret = dest.write(chunk);
|
|
if (false === ret && !increasedAwaitDrain) {
|
|
// If the user unpiped during `dest.write()`, it is possible
|
|
// to get stuck in a permanently paused state if that write
|
|
// also returned false.
|
|
// => Check whether `dest` is still a piping destination.
|
|
if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
|
|
debug('false write response, pause', src._readableState.awaitDrain);
|
|
src._readableState.awaitDrain++;
|
|
increasedAwaitDrain = true;
|
|
}
|
|
src.pause();
|
|
}
|
|
}
|
|
|
|
// if the dest has an error, then stop piping into it.
|
|
// however, don't suppress the throwing behavior for this.
|
|
function onerror(er) {
|
|
debug('onerror', er);
|
|
unpipe();
|
|
dest.removeListener('error', onerror);
|
|
if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
|
|
}
|
|
|
|
// Make sure our error handler is attached before userland ones.
|
|
prependListener(dest, 'error', onerror);
|
|
|
|
// Both close and finish should trigger unpipe, but only once.
|
|
function onclose() {
|
|
dest.removeListener('finish', onfinish);
|
|
unpipe();
|
|
}
|
|
dest.once('close', onclose);
|
|
function onfinish() {
|
|
debug('onfinish');
|
|
dest.removeListener('close', onclose);
|
|
unpipe();
|
|
}
|
|
dest.once('finish', onfinish);
|
|
|
|
function unpipe() {
|
|
debug('unpipe');
|
|
src.unpipe(dest);
|
|
}
|
|
|
|
// tell the dest that it's being piped to
|
|
dest.emit('pipe', src);
|
|
|
|
// start the flow if it hasn't been started already.
|
|
if (!state.flowing) {
|
|
debug('pipe resume');
|
|
src.resume();
|
|
}
|
|
|
|
return dest;
|
|
};
|
|
|
|
function pipeOnDrain(src) {
|
|
return function () {
|
|
var state = src._readableState;
|
|
debug('pipeOnDrain', state.awaitDrain);
|
|
if (state.awaitDrain) state.awaitDrain--;
|
|
if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
|
|
state.flowing = true;
|
|
flow(src);
|
|
}
|
|
};
|
|
}
|
|
|
|
Readable.prototype.unpipe = function (dest) {
|
|
var state = this._readableState;
|
|
var unpipeInfo = { hasUnpiped: false };
|
|
|
|
// if we're not piping anywhere, then do nothing.
|
|
if (state.pipesCount === 0) return this;
|
|
|
|
// just one destination. most common case.
|
|
if (state.pipesCount === 1) {
|
|
// passed in one, but it's not the right one.
|
|
if (dest && dest !== state.pipes) return this;
|
|
|
|
if (!dest) dest = state.pipes;
|
|
|
|
// got a match.
|
|
state.pipes = null;
|
|
state.pipesCount = 0;
|
|
state.flowing = false;
|
|
if (dest) dest.emit('unpipe', this, unpipeInfo);
|
|
return this;
|
|
}
|
|
|
|
// slow case. multiple pipe destinations.
|
|
|
|
if (!dest) {
|
|
// remove all.
|
|
var dests = state.pipes;
|
|
var len = state.pipesCount;
|
|
state.pipes = null;
|
|
state.pipesCount = 0;
|
|
state.flowing = false;
|
|
|
|
for (var i = 0; i < len; i++) {
|
|
dests[i].emit('unpipe', this, unpipeInfo);
|
|
}return this;
|
|
}
|
|
|
|
// try to find the right one.
|
|
var index = indexOf(state.pipes, dest);
|
|
if (index === -1) return this;
|
|
|
|
state.pipes.splice(index, 1);
|
|
state.pipesCount -= 1;
|
|
if (state.pipesCount === 1) state.pipes = state.pipes[0];
|
|
|
|
dest.emit('unpipe', this, unpipeInfo);
|
|
|
|
return this;
|
|
};
|
|
|
|
// set up data events if they are asked for
|
|
// Ensure readable listeners eventually get something
|
|
Readable.prototype.on = function (ev, fn) {
|
|
var res = Stream.prototype.on.call(this, ev, fn);
|
|
|
|
if (ev === 'data') {
|
|
// Start flowing on next tick if stream isn't explicitly paused
|
|
if (this._readableState.flowing !== false) this.resume();
|
|
} else if (ev === 'readable') {
|
|
var state = this._readableState;
|
|
if (!state.endEmitted && !state.readableListening) {
|
|
state.readableListening = state.needReadable = true;
|
|
state.emittedReadable = false;
|
|
if (!state.reading) {
|
|
pna.nextTick(nReadingNextTick, this);
|
|
} else if (state.length) {
|
|
emitReadable(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
return res;
|
|
};
|
|
Readable.prototype.addListener = Readable.prototype.on;
|
|
|
|
function nReadingNextTick(self) {
|
|
debug('readable nexttick read 0');
|
|
self.read(0);
|
|
}
|
|
|
|
// pause() and resume() are remnants of the legacy readable stream API
|
|
// If the user uses them, then switch into old mode.
|
|
Readable.prototype.resume = function () {
|
|
var state = this._readableState;
|
|
if (!state.flowing) {
|
|
debug('resume');
|
|
state.flowing = true;
|
|
resume(this, state);
|
|
}
|
|
return this;
|
|
};
|
|
|
|
function resume(stream, state) {
|
|
if (!state.resumeScheduled) {
|
|
state.resumeScheduled = true;
|
|
pna.nextTick(resume_, stream, state);
|
|
}
|
|
}
|
|
|
|
function resume_(stream, state) {
|
|
if (!state.reading) {
|
|
debug('resume read 0');
|
|
stream.read(0);
|
|
}
|
|
|
|
state.resumeScheduled = false;
|
|
state.awaitDrain = 0;
|
|
stream.emit('resume');
|
|
flow(stream);
|
|
if (state.flowing && !state.reading) stream.read(0);
|
|
}
|
|
|
|
Readable.prototype.pause = function () {
|
|
debug('call pause flowing=%j', this._readableState.flowing);
|
|
if (false !== this._readableState.flowing) {
|
|
debug('pause');
|
|
this._readableState.flowing = false;
|
|
this.emit('pause');
|
|
}
|
|
return this;
|
|
};
|
|
|
|
function flow(stream) {
|
|
var state = stream._readableState;
|
|
debug('flow', state.flowing);
|
|
while (state.flowing && stream.read() !== null) {}
|
|
}
|
|
|
|
// wrap an old-style stream as the async data source.
|
|
// This is *not* part of the readable stream interface.
|
|
// It is an ugly unfortunate mess of history.
|
|
Readable.prototype.wrap = function (stream) {
|
|
var _this = this;
|
|
|
|
var state = this._readableState;
|
|
var paused = false;
|
|
|
|
stream.on('end', function () {
|
|
debug('wrapped end');
|
|
if (state.decoder && !state.ended) {
|
|
var chunk = state.decoder.end();
|
|
if (chunk && chunk.length) _this.push(chunk);
|
|
}
|
|
|
|
_this.push(null);
|
|
});
|
|
|
|
stream.on('data', function (chunk) {
|
|
debug('wrapped data');
|
|
if (state.decoder) chunk = state.decoder.write(chunk);
|
|
|
|
// don't skip over falsy values in objectMode
|
|
if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
|
|
|
|
var ret = _this.push(chunk);
|
|
if (!ret) {
|
|
paused = true;
|
|
stream.pause();
|
|
}
|
|
});
|
|
|
|
// proxy all the other methods.
|
|
// important when wrapping filters and duplexes.
|
|
for (var i in stream) {
|
|
if (this[i] === undefined && typeof stream[i] === 'function') {
|
|
this[i] = function (method) {
|
|
return function () {
|
|
return stream[method].apply(stream, arguments);
|
|
};
|
|
}(i);
|
|
}
|
|
}
|
|
|
|
// proxy certain important events.
|
|
for (var n = 0; n < kProxyEvents.length; n++) {
|
|
stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
|
|
}
|
|
|
|
// when we try to consume some more bytes, simply unpause the
|
|
// underlying stream.
|
|
this._read = function (n) {
|
|
debug('wrapped _read', n);
|
|
if (paused) {
|
|
paused = false;
|
|
stream.resume();
|
|
}
|
|
};
|
|
|
|
return this;
|
|
};
|
|
|
|
Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function () {
|
|
return this._readableState.highWaterMark;
|
|
}
|
|
});
|
|
|
|
// exposed for testing purposes only.
|
|
Readable._fromList = fromList;
|
|
|
|
// Pluck off n bytes from an array of buffers.
|
|
// Length is the combined lengths of all the buffers in the list.
|
|
// This function is designed to be inlinable, so please take care when making
|
|
// changes to the function body.
|
|
function fromList(n, state) {
|
|
// nothing buffered
|
|
if (state.length === 0) return null;
|
|
|
|
var ret;
|
|
if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
|
|
// read it all, truncate the list
|
|
if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
|
|
state.buffer.clear();
|
|
} else {
|
|
// read part of list
|
|
ret = fromListPartial(n, state.buffer, state.decoder);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Extracts only enough buffered data to satisfy the amount requested.
|
|
// This function is designed to be inlinable, so please take care when making
|
|
// changes to the function body.
|
|
function fromListPartial(n, list, hasStrings) {
|
|
var ret;
|
|
if (n < list.head.data.length) {
|
|
// slice is the same for buffers and strings
|
|
ret = list.head.data.slice(0, n);
|
|
list.head.data = list.head.data.slice(n);
|
|
} else if (n === list.head.data.length) {
|
|
// first chunk is a perfect match
|
|
ret = list.shift();
|
|
} else {
|
|
// result spans more than one buffer
|
|
ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
// Copies a specified amount of characters from the list of buffered data
|
|
// chunks.
|
|
// This function is designed to be inlinable, so please take care when making
|
|
// changes to the function body.
|
|
function copyFromBufferString(n, list) {
|
|
var p = list.head;
|
|
var c = 1;
|
|
var ret = p.data;
|
|
n -= ret.length;
|
|
while (p = p.next) {
|
|
var str = p.data;
|
|
var nb = n > str.length ? str.length : n;
|
|
if (nb === str.length) ret += str;else ret += str.slice(0, n);
|
|
n -= nb;
|
|
if (n === 0) {
|
|
if (nb === str.length) {
|
|
++c;
|
|
if (p.next) list.head = p.next;else list.head = list.tail = null;
|
|
} else {
|
|
list.head = p;
|
|
p.data = str.slice(nb);
|
|
}
|
|
break;
|
|
}
|
|
++c;
|
|
}
|
|
list.length -= c;
|
|
return ret;
|
|
}
|
|
|
|
// Copies a specified amount of bytes from the list of buffered data chunks.
|
|
// This function is designed to be inlinable, so please take care when making
|
|
// changes to the function body.
|
|
function copyFromBuffer(n, list) {
|
|
var ret = Buffer.allocUnsafe(n);
|
|
var p = list.head;
|
|
var c = 1;
|
|
p.data.copy(ret);
|
|
n -= p.data.length;
|
|
while (p = p.next) {
|
|
var buf = p.data;
|
|
var nb = n > buf.length ? buf.length : n;
|
|
buf.copy(ret, ret.length - n, 0, nb);
|
|
n -= nb;
|
|
if (n === 0) {
|
|
if (nb === buf.length) {
|
|
++c;
|
|
if (p.next) list.head = p.next;else list.head = list.tail = null;
|
|
} else {
|
|
list.head = p;
|
|
p.data = buf.slice(nb);
|
|
}
|
|
break;
|
|
}
|
|
++c;
|
|
}
|
|
list.length -= c;
|
|
return ret;
|
|
}
|
|
|
|
function endReadable(stream) {
|
|
var state = stream._readableState;
|
|
|
|
// If we get here before consuming all the bytes, then that is a
|
|
// bug in node. Should never happen.
|
|
if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
|
|
|
|
if (!state.endEmitted) {
|
|
state.ended = true;
|
|
pna.nextTick(endReadableNT, state, stream);
|
|
}
|
|
}
|
|
|
|
function endReadableNT(state, stream) {
|
|
// Check that we didn't get one last unshift.
|
|
if (!state.endEmitted && state.length === 0) {
|
|
state.endEmitted = true;
|
|
stream.readable = false;
|
|
stream.emit('end');
|
|
}
|
|
}
|
|
|
|
function indexOf(xs, x) {
|
|
for (var i = 0, l = xs.length; i < l; i++) {
|
|
if (xs[i] === x) return i;
|
|
}
|
|
return -1;
|
|
}
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"./_stream_duplex":128,"./internal/streams/BufferList":133,"./internal/streams/destroy":134,"./internal/streams/stream":135,"_process":117,"core-util-is":50,"events":83,"inherits":100,"isarray":136,"process-nextick-args":116,"safe-buffer":137,"string_decoder/":138,"util":18}],131:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// a transform stream is a readable/writable stream where you do
|
|
// something with the data. Sometimes it's called a "filter",
|
|
// but that's not a great name for it, since that implies a thing where
|
|
// some bits pass through, and others are simply ignored. (That would
|
|
// be a valid example of a transform, of course.)
|
|
//
|
|
// While the output is causally related to the input, it's not a
|
|
// necessarily symmetric or synchronous transformation. For example,
|
|
// a zlib stream might take multiple plain-text writes(), and then
|
|
// emit a single compressed chunk some time in the future.
|
|
//
|
|
// Here's how this works:
|
|
//
|
|
// The Transform stream has all the aspects of the readable and writable
|
|
// stream classes. When you write(chunk), that calls _write(chunk,cb)
|
|
// internally, and returns false if there's a lot of pending writes
|
|
// buffered up. When you call read(), that calls _read(n) until
|
|
// there's enough pending readable data buffered up.
|
|
//
|
|
// In a transform stream, the written data is placed in a buffer. When
|
|
// _read(n) is called, it transforms the queued up data, calling the
|
|
// buffered _write cb's as it consumes chunks. If consuming a single
|
|
// written chunk would result in multiple output chunks, then the first
|
|
// outputted bit calls the readcb, and subsequent chunks just go into
|
|
// the read buffer, and will cause it to emit 'readable' if necessary.
|
|
//
|
|
// This way, back-pressure is actually determined by the reading side,
|
|
// since _read has to be called to start processing a new chunk. However,
|
|
// a pathological inflate type of transform can cause excessive buffering
|
|
// here. For example, imagine a stream where every byte of input is
|
|
// interpreted as an integer from 0-255, and then results in that many
|
|
// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
|
|
// 1kb of data being output. In this case, you could write a very small
|
|
// amount of input, and end up with a very large amount of output. In
|
|
// such a pathological inflating mechanism, there'd be no way to tell
|
|
// the system to stop doing the transform. A single 4MB write could
|
|
// cause the system to run out of memory.
|
|
//
|
|
// However, even in such a pathological case, only a single written chunk
|
|
// would be consumed, and then the rest would wait (un-transformed) until
|
|
// the results of the previous transformed chunk were consumed.
|
|
|
|
'use strict';
|
|
|
|
module.exports = Transform;
|
|
|
|
var Duplex = require('./_stream_duplex');
|
|
|
|
/*<replacement>*/
|
|
var util = require('core-util-is');
|
|
util.inherits = require('inherits');
|
|
/*</replacement>*/
|
|
|
|
util.inherits(Transform, Duplex);
|
|
|
|
function afterTransform(er, data) {
|
|
var ts = this._transformState;
|
|
ts.transforming = false;
|
|
|
|
var cb = ts.writecb;
|
|
|
|
if (!cb) {
|
|
return this.emit('error', new Error('write callback called multiple times'));
|
|
}
|
|
|
|
ts.writechunk = null;
|
|
ts.writecb = null;
|
|
|
|
if (data != null) // single equals check for both `null` and `undefined`
|
|
this.push(data);
|
|
|
|
cb(er);
|
|
|
|
var rs = this._readableState;
|
|
rs.reading = false;
|
|
if (rs.needReadable || rs.length < rs.highWaterMark) {
|
|
this._read(rs.highWaterMark);
|
|
}
|
|
}
|
|
|
|
function Transform(options) {
|
|
if (!(this instanceof Transform)) return new Transform(options);
|
|
|
|
Duplex.call(this, options);
|
|
|
|
this._transformState = {
|
|
afterTransform: afterTransform.bind(this),
|
|
needTransform: false,
|
|
transforming: false,
|
|
writecb: null,
|
|
writechunk: null,
|
|
writeencoding: null
|
|
};
|
|
|
|
// start out asking for a readable event once data is transformed.
|
|
this._readableState.needReadable = true;
|
|
|
|
// we have implemented the _read method, and done the other things
|
|
// that Readable wants before the first _read call, so unset the
|
|
// sync guard flag.
|
|
this._readableState.sync = false;
|
|
|
|
if (options) {
|
|
if (typeof options.transform === 'function') this._transform = options.transform;
|
|
|
|
if (typeof options.flush === 'function') this._flush = options.flush;
|
|
}
|
|
|
|
// When the writable side finishes, then flush out anything remaining.
|
|
this.on('prefinish', prefinish);
|
|
}
|
|
|
|
function prefinish() {
|
|
var _this = this;
|
|
|
|
if (typeof this._flush === 'function') {
|
|
this._flush(function (er, data) {
|
|
done(_this, er, data);
|
|
});
|
|
} else {
|
|
done(this, null, null);
|
|
}
|
|
}
|
|
|
|
Transform.prototype.push = function (chunk, encoding) {
|
|
this._transformState.needTransform = false;
|
|
return Duplex.prototype.push.call(this, chunk, encoding);
|
|
};
|
|
|
|
// This is the part where you do stuff!
|
|
// override this function in implementation classes.
|
|
// 'chunk' is an input chunk.
|
|
//
|
|
// Call `push(newChunk)` to pass along transformed output
|
|
// to the readable side. You may call 'push' zero or more times.
|
|
//
|
|
// Call `cb(err)` when you are done with this chunk. If you pass
|
|
// an error, then that'll put the hurt on the whole operation. If you
|
|
// never call cb(), then you'll never get another chunk.
|
|
Transform.prototype._transform = function (chunk, encoding, cb) {
|
|
throw new Error('_transform() is not implemented');
|
|
};
|
|
|
|
Transform.prototype._write = function (chunk, encoding, cb) {
|
|
var ts = this._transformState;
|
|
ts.writecb = cb;
|
|
ts.writechunk = chunk;
|
|
ts.writeencoding = encoding;
|
|
if (!ts.transforming) {
|
|
var rs = this._readableState;
|
|
if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
|
|
}
|
|
};
|
|
|
|
// Doesn't matter what the args are here.
|
|
// _transform does all the work.
|
|
// That we got here means that the readable side wants more data.
|
|
Transform.prototype._read = function (n) {
|
|
var ts = this._transformState;
|
|
|
|
if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
|
|
ts.transforming = true;
|
|
this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
|
|
} else {
|
|
// mark that we need a transform, so that any data that comes in
|
|
// will get processed, now that we've asked for it.
|
|
ts.needTransform = true;
|
|
}
|
|
};
|
|
|
|
Transform.prototype._destroy = function (err, cb) {
|
|
var _this2 = this;
|
|
|
|
Duplex.prototype._destroy.call(this, err, function (err2) {
|
|
cb(err2);
|
|
_this2.emit('close');
|
|
});
|
|
};
|
|
|
|
function done(stream, er, data) {
|
|
if (er) return stream.emit('error', er);
|
|
|
|
if (data != null) // single equals check for both `null` and `undefined`
|
|
stream.push(data);
|
|
|
|
// if there's nothing in the write buffer, then that means
|
|
// that nothing more will ever be provided
|
|
if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
|
|
|
|
if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
|
|
|
|
return stream.push(null);
|
|
}
|
|
},{"./_stream_duplex":128,"core-util-is":50,"inherits":100}],132:[function(require,module,exports){
|
|
(function (process,global,setImmediate){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// A bit simpler than readable streams.
|
|
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
|
|
// the drain event emission and buffering.
|
|
|
|
'use strict';
|
|
|
|
/*<replacement>*/
|
|
|
|
var pna = require('process-nextick-args');
|
|
/*</replacement>*/
|
|
|
|
module.exports = Writable;
|
|
|
|
/* <replacement> */
|
|
function WriteReq(chunk, encoding, cb) {
|
|
this.chunk = chunk;
|
|
this.encoding = encoding;
|
|
this.callback = cb;
|
|
this.next = null;
|
|
}
|
|
|
|
// It seems a linked list but it is not
|
|
// there will be only 2 of these for each stream
|
|
function CorkedRequest(state) {
|
|
var _this = this;
|
|
|
|
this.next = null;
|
|
this.entry = null;
|
|
this.finish = function () {
|
|
onCorkedFinish(_this, state);
|
|
};
|
|
}
|
|
/* </replacement> */
|
|
|
|
/*<replacement>*/
|
|
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var Duplex;
|
|
/*</replacement>*/
|
|
|
|
Writable.WritableState = WritableState;
|
|
|
|
/*<replacement>*/
|
|
var util = require('core-util-is');
|
|
util.inherits = require('inherits');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var internalUtil = {
|
|
deprecate: require('util-deprecate')
|
|
};
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
var Stream = require('./internal/streams/stream');
|
|
/*</replacement>*/
|
|
|
|
/*<replacement>*/
|
|
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
var OurUint8Array = global.Uint8Array || function () {};
|
|
function _uint8ArrayToBuffer(chunk) {
|
|
return Buffer.from(chunk);
|
|
}
|
|
function _isUint8Array(obj) {
|
|
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
|
|
}
|
|
|
|
/*</replacement>*/
|
|
|
|
var destroyImpl = require('./internal/streams/destroy');
|
|
|
|
util.inherits(Writable, Stream);
|
|
|
|
function nop() {}
|
|
|
|
function WritableState(options, stream) {
|
|
Duplex = Duplex || require('./_stream_duplex');
|
|
|
|
options = options || {};
|
|
|
|
// Duplex streams are both readable and writable, but share
|
|
// the same options object.
|
|
// However, some cases require setting options to different
|
|
// values for the readable and the writable sides of the duplex stream.
|
|
// These options can be provided separately as readableXXX and writableXXX.
|
|
var isDuplex = stream instanceof Duplex;
|
|
|
|
// object stream flag to indicate whether or not this stream
|
|
// contains buffers or objects.
|
|
this.objectMode = !!options.objectMode;
|
|
|
|
if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
|
|
|
|
// the point at which write() starts returning false
|
|
// Note: 0 is a valid value, means that we always return false if
|
|
// the entire buffer is not flushed immediately on write()
|
|
var hwm = options.highWaterMark;
|
|
var writableHwm = options.writableHighWaterMark;
|
|
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
|
|
|
|
if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
|
|
|
|
// cast to ints.
|
|
this.highWaterMark = Math.floor(this.highWaterMark);
|
|
|
|
// if _final has been called
|
|
this.finalCalled = false;
|
|
|
|
// drain event flag.
|
|
this.needDrain = false;
|
|
// at the start of calling end()
|
|
this.ending = false;
|
|
// when end() has been called, and returned
|
|
this.ended = false;
|
|
// when 'finish' is emitted
|
|
this.finished = false;
|
|
|
|
// has it been destroyed
|
|
this.destroyed = false;
|
|
|
|
// should we decode strings into buffers before passing to _write?
|
|
// this is here so that some node-core streams can optimize string
|
|
// handling at a lower level.
|
|
var noDecode = options.decodeStrings === false;
|
|
this.decodeStrings = !noDecode;
|
|
|
|
// Crypto is kind of old and crusty. Historically, its default string
|
|
// encoding is 'binary' so we have to make this configurable.
|
|
// Everything else in the universe uses 'utf8', though.
|
|
this.defaultEncoding = options.defaultEncoding || 'utf8';
|
|
|
|
// not an actual buffer we keep track of, but a measurement
|
|
// of how much we're waiting to get pushed to some underlying
|
|
// socket or file.
|
|
this.length = 0;
|
|
|
|
// a flag to see when we're in the middle of a write.
|
|
this.writing = false;
|
|
|
|
// when true all writes will be buffered until .uncork() call
|
|
this.corked = 0;
|
|
|
|
// a flag to be able to tell if the onwrite cb is called immediately,
|
|
// or on a later tick. We set this to true at first, because any
|
|
// actions that shouldn't happen until "later" should generally also
|
|
// not happen before the first write call.
|
|
this.sync = true;
|
|
|
|
// a flag to know if we're processing previously buffered items, which
|
|
// may call the _write() callback in the same tick, so that we don't
|
|
// end up in an overlapped onwrite situation.
|
|
this.bufferProcessing = false;
|
|
|
|
// the callback that's passed to _write(chunk,cb)
|
|
this.onwrite = function (er) {
|
|
onwrite(stream, er);
|
|
};
|
|
|
|
// the callback that the user supplies to write(chunk,encoding,cb)
|
|
this.writecb = null;
|
|
|
|
// the amount that is being written when _write is called.
|
|
this.writelen = 0;
|
|
|
|
this.bufferedRequest = null;
|
|
this.lastBufferedRequest = null;
|
|
|
|
// number of pending user-supplied write callbacks
|
|
// this must be 0 before 'finish' can be emitted
|
|
this.pendingcb = 0;
|
|
|
|
// emit prefinish if the only thing we're waiting for is _write cbs
|
|
// This is relevant for synchronous Transform streams
|
|
this.prefinished = false;
|
|
|
|
// True if the error was already emitted and should not be thrown again
|
|
this.errorEmitted = false;
|
|
|
|
// count buffered requests
|
|
this.bufferedRequestCount = 0;
|
|
|
|
// allocate the first CorkedRequest, there is always
|
|
// one allocated and free to use, and we maintain at most two
|
|
this.corkedRequestsFree = new CorkedRequest(this);
|
|
}
|
|
|
|
WritableState.prototype.getBuffer = function getBuffer() {
|
|
var current = this.bufferedRequest;
|
|
var out = [];
|
|
while (current) {
|
|
out.push(current);
|
|
current = current.next;
|
|
}
|
|
return out;
|
|
};
|
|
|
|
(function () {
|
|
try {
|
|
Object.defineProperty(WritableState.prototype, 'buffer', {
|
|
get: internalUtil.deprecate(function () {
|
|
return this.getBuffer();
|
|
}, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
|
|
});
|
|
} catch (_) {}
|
|
})();
|
|
|
|
// Test _writableState for inheritance to account for Duplex streams,
|
|
// whose prototype chain only points to Readable.
|
|
var realHasInstance;
|
|
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
|
|
realHasInstance = Function.prototype[Symbol.hasInstance];
|
|
Object.defineProperty(Writable, Symbol.hasInstance, {
|
|
value: function (object) {
|
|
if (realHasInstance.call(this, object)) return true;
|
|
if (this !== Writable) return false;
|
|
|
|
return object && object._writableState instanceof WritableState;
|
|
}
|
|
});
|
|
} else {
|
|
realHasInstance = function (object) {
|
|
return object instanceof this;
|
|
};
|
|
}
|
|
|
|
function Writable(options) {
|
|
Duplex = Duplex || require('./_stream_duplex');
|
|
|
|
// Writable ctor is applied to Duplexes, too.
|
|
// `realHasInstance` is necessary because using plain `instanceof`
|
|
// would return false, as no `_writableState` property is attached.
|
|
|
|
// Trying to use the custom `instanceof` for Writable here will also break the
|
|
// Node.js LazyTransform implementation, which has a non-trivial getter for
|
|
// `_writableState` that would lead to infinite recursion.
|
|
if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
|
|
return new Writable(options);
|
|
}
|
|
|
|
this._writableState = new WritableState(options, this);
|
|
|
|
// legacy.
|
|
this.writable = true;
|
|
|
|
if (options) {
|
|
if (typeof options.write === 'function') this._write = options.write;
|
|
|
|
if (typeof options.writev === 'function') this._writev = options.writev;
|
|
|
|
if (typeof options.destroy === 'function') this._destroy = options.destroy;
|
|
|
|
if (typeof options.final === 'function') this._final = options.final;
|
|
}
|
|
|
|
Stream.call(this);
|
|
}
|
|
|
|
// Otherwise people can pipe Writable streams, which is just wrong.
|
|
Writable.prototype.pipe = function () {
|
|
this.emit('error', new Error('Cannot pipe, not readable'));
|
|
};
|
|
|
|
function writeAfterEnd(stream, cb) {
|
|
var er = new Error('write after end');
|
|
// TODO: defer error events consistently everywhere, not just the cb
|
|
stream.emit('error', er);
|
|
pna.nextTick(cb, er);
|
|
}
|
|
|
|
// Checks that a user-supplied chunk is valid, especially for the particular
|
|
// mode the stream is in. Currently this means that `null` is never accepted
|
|
// and undefined/non-string values are only allowed in object mode.
|
|
function validChunk(stream, state, chunk, cb) {
|
|
var valid = true;
|
|
var er = false;
|
|
|
|
if (chunk === null) {
|
|
er = new TypeError('May not write null values to stream');
|
|
} else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
|
|
er = new TypeError('Invalid non-string/buffer chunk');
|
|
}
|
|
if (er) {
|
|
stream.emit('error', er);
|
|
pna.nextTick(cb, er);
|
|
valid = false;
|
|
}
|
|
return valid;
|
|
}
|
|
|
|
Writable.prototype.write = function (chunk, encoding, cb) {
|
|
var state = this._writableState;
|
|
var ret = false;
|
|
var isBuf = !state.objectMode && _isUint8Array(chunk);
|
|
|
|
if (isBuf && !Buffer.isBuffer(chunk)) {
|
|
chunk = _uint8ArrayToBuffer(chunk);
|
|
}
|
|
|
|
if (typeof encoding === 'function') {
|
|
cb = encoding;
|
|
encoding = null;
|
|
}
|
|
|
|
if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
|
|
|
|
if (typeof cb !== 'function') cb = nop;
|
|
|
|
if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
|
|
state.pendingcb++;
|
|
ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
|
|
}
|
|
|
|
return ret;
|
|
};
|
|
|
|
Writable.prototype.cork = function () {
|
|
var state = this._writableState;
|
|
|
|
state.corked++;
|
|
};
|
|
|
|
Writable.prototype.uncork = function () {
|
|
var state = this._writableState;
|
|
|
|
if (state.corked) {
|
|
state.corked--;
|
|
|
|
if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
|
|
}
|
|
};
|
|
|
|
Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
|
|
// node::ParseEncoding() requires lower case.
|
|
if (typeof encoding === 'string') encoding = encoding.toLowerCase();
|
|
if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
|
|
this._writableState.defaultEncoding = encoding;
|
|
return this;
|
|
};
|
|
|
|
function decodeChunk(state, chunk, encoding) {
|
|
if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
|
|
chunk = Buffer.from(chunk, encoding);
|
|
}
|
|
return chunk;
|
|
}
|
|
|
|
Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
|
|
// making it explicit this property is not enumerable
|
|
// because otherwise some prototype manipulation in
|
|
// userland will fail
|
|
enumerable: false,
|
|
get: function () {
|
|
return this._writableState.highWaterMark;
|
|
}
|
|
});
|
|
|
|
// if we're already writing something, then just put this
|
|
// in the queue, and wait our turn. Otherwise, call _write
|
|
// If we return false, then we need a drain event, so set that flag.
|
|
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
|
|
if (!isBuf) {
|
|
var newChunk = decodeChunk(state, chunk, encoding);
|
|
if (chunk !== newChunk) {
|
|
isBuf = true;
|
|
encoding = 'buffer';
|
|
chunk = newChunk;
|
|
}
|
|
}
|
|
var len = state.objectMode ? 1 : chunk.length;
|
|
|
|
state.length += len;
|
|
|
|
var ret = state.length < state.highWaterMark;
|
|
// we must ensure that previous needDrain will not be reset to false.
|
|
if (!ret) state.needDrain = true;
|
|
|
|
if (state.writing || state.corked) {
|
|
var last = state.lastBufferedRequest;
|
|
state.lastBufferedRequest = {
|
|
chunk: chunk,
|
|
encoding: encoding,
|
|
isBuf: isBuf,
|
|
callback: cb,
|
|
next: null
|
|
};
|
|
if (last) {
|
|
last.next = state.lastBufferedRequest;
|
|
} else {
|
|
state.bufferedRequest = state.lastBufferedRequest;
|
|
}
|
|
state.bufferedRequestCount += 1;
|
|
} else {
|
|
doWrite(stream, state, false, len, chunk, encoding, cb);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
function doWrite(stream, state, writev, len, chunk, encoding, cb) {
|
|
state.writelen = len;
|
|
state.writecb = cb;
|
|
state.writing = true;
|
|
state.sync = true;
|
|
if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
|
|
state.sync = false;
|
|
}
|
|
|
|
function onwriteError(stream, state, sync, er, cb) {
|
|
--state.pendingcb;
|
|
|
|
if (sync) {
|
|
// defer the callback if we are being called synchronously
|
|
// to avoid piling up things on the stack
|
|
pna.nextTick(cb, er);
|
|
// this can emit finish, and it will always happen
|
|
// after error
|
|
pna.nextTick(finishMaybe, stream, state);
|
|
stream._writableState.errorEmitted = true;
|
|
stream.emit('error', er);
|
|
} else {
|
|
// the caller expect this to happen before if
|
|
// it is async
|
|
cb(er);
|
|
stream._writableState.errorEmitted = true;
|
|
stream.emit('error', er);
|
|
// this can emit finish, but finish must
|
|
// always follow error
|
|
finishMaybe(stream, state);
|
|
}
|
|
}
|
|
|
|
function onwriteStateUpdate(state) {
|
|
state.writing = false;
|
|
state.writecb = null;
|
|
state.length -= state.writelen;
|
|
state.writelen = 0;
|
|
}
|
|
|
|
function onwrite(stream, er) {
|
|
var state = stream._writableState;
|
|
var sync = state.sync;
|
|
var cb = state.writecb;
|
|
|
|
onwriteStateUpdate(state);
|
|
|
|
if (er) onwriteError(stream, state, sync, er, cb);else {
|
|
// Check if we're actually ready to finish, but don't emit yet
|
|
var finished = needFinish(state);
|
|
|
|
if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
|
|
clearBuffer(stream, state);
|
|
}
|
|
|
|
if (sync) {
|
|
/*<replacement>*/
|
|
asyncWrite(afterWrite, stream, state, finished, cb);
|
|
/*</replacement>*/
|
|
} else {
|
|
afterWrite(stream, state, finished, cb);
|
|
}
|
|
}
|
|
}
|
|
|
|
function afterWrite(stream, state, finished, cb) {
|
|
if (!finished) onwriteDrain(stream, state);
|
|
state.pendingcb--;
|
|
cb();
|
|
finishMaybe(stream, state);
|
|
}
|
|
|
|
// Must force callback to be called on nextTick, so that we don't
|
|
// emit 'drain' before the write() consumer gets the 'false' return
|
|
// value, and has a chance to attach a 'drain' listener.
|
|
function onwriteDrain(stream, state) {
|
|
if (state.length === 0 && state.needDrain) {
|
|
state.needDrain = false;
|
|
stream.emit('drain');
|
|
}
|
|
}
|
|
|
|
// if there's something in the buffer waiting, then process it
|
|
function clearBuffer(stream, state) {
|
|
state.bufferProcessing = true;
|
|
var entry = state.bufferedRequest;
|
|
|
|
if (stream._writev && entry && entry.next) {
|
|
// Fast case, write everything using _writev()
|
|
var l = state.bufferedRequestCount;
|
|
var buffer = new Array(l);
|
|
var holder = state.corkedRequestsFree;
|
|
holder.entry = entry;
|
|
|
|
var count = 0;
|
|
var allBuffers = true;
|
|
while (entry) {
|
|
buffer[count] = entry;
|
|
if (!entry.isBuf) allBuffers = false;
|
|
entry = entry.next;
|
|
count += 1;
|
|
}
|
|
buffer.allBuffers = allBuffers;
|
|
|
|
doWrite(stream, state, true, state.length, buffer, '', holder.finish);
|
|
|
|
// doWrite is almost always async, defer these to save a bit of time
|
|
// as the hot path ends with doWrite
|
|
state.pendingcb++;
|
|
state.lastBufferedRequest = null;
|
|
if (holder.next) {
|
|
state.corkedRequestsFree = holder.next;
|
|
holder.next = null;
|
|
} else {
|
|
state.corkedRequestsFree = new CorkedRequest(state);
|
|
}
|
|
state.bufferedRequestCount = 0;
|
|
} else {
|
|
// Slow case, write chunks one-by-one
|
|
while (entry) {
|
|
var chunk = entry.chunk;
|
|
var encoding = entry.encoding;
|
|
var cb = entry.callback;
|
|
var len = state.objectMode ? 1 : chunk.length;
|
|
|
|
doWrite(stream, state, false, len, chunk, encoding, cb);
|
|
entry = entry.next;
|
|
state.bufferedRequestCount--;
|
|
// if we didn't call the onwrite immediately, then
|
|
// it means that we need to wait until it does.
|
|
// also, that means that the chunk and cb are currently
|
|
// being processed, so move the buffer counter past them.
|
|
if (state.writing) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (entry === null) state.lastBufferedRequest = null;
|
|
}
|
|
|
|
state.bufferedRequest = entry;
|
|
state.bufferProcessing = false;
|
|
}
|
|
|
|
Writable.prototype._write = function (chunk, encoding, cb) {
|
|
cb(new Error('_write() is not implemented'));
|
|
};
|
|
|
|
Writable.prototype._writev = null;
|
|
|
|
Writable.prototype.end = function (chunk, encoding, cb) {
|
|
var state = this._writableState;
|
|
|
|
if (typeof chunk === 'function') {
|
|
cb = chunk;
|
|
chunk = null;
|
|
encoding = null;
|
|
} else if (typeof encoding === 'function') {
|
|
cb = encoding;
|
|
encoding = null;
|
|
}
|
|
|
|
if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
|
|
|
|
// .end() fully uncorks
|
|
if (state.corked) {
|
|
state.corked = 1;
|
|
this.uncork();
|
|
}
|
|
|
|
// ignore unnecessary end() calls.
|
|
if (!state.ending && !state.finished) endWritable(this, state, cb);
|
|
};
|
|
|
|
function needFinish(state) {
|
|
return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
|
|
}
|
|
function callFinal(stream, state) {
|
|
stream._final(function (err) {
|
|
state.pendingcb--;
|
|
if (err) {
|
|
stream.emit('error', err);
|
|
}
|
|
state.prefinished = true;
|
|
stream.emit('prefinish');
|
|
finishMaybe(stream, state);
|
|
});
|
|
}
|
|
function prefinish(stream, state) {
|
|
if (!state.prefinished && !state.finalCalled) {
|
|
if (typeof stream._final === 'function') {
|
|
state.pendingcb++;
|
|
state.finalCalled = true;
|
|
pna.nextTick(callFinal, stream, state);
|
|
} else {
|
|
state.prefinished = true;
|
|
stream.emit('prefinish');
|
|
}
|
|
}
|
|
}
|
|
|
|
function finishMaybe(stream, state) {
|
|
var need = needFinish(state);
|
|
if (need) {
|
|
prefinish(stream, state);
|
|
if (state.pendingcb === 0) {
|
|
state.finished = true;
|
|
stream.emit('finish');
|
|
}
|
|
}
|
|
return need;
|
|
}
|
|
|
|
function endWritable(stream, state, cb) {
|
|
state.ending = true;
|
|
finishMaybe(stream, state);
|
|
if (cb) {
|
|
if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
|
|
}
|
|
state.ended = true;
|
|
stream.writable = false;
|
|
}
|
|
|
|
function onCorkedFinish(corkReq, state, err) {
|
|
var entry = corkReq.entry;
|
|
corkReq.entry = null;
|
|
while (entry) {
|
|
var cb = entry.callback;
|
|
state.pendingcb--;
|
|
cb(err);
|
|
entry = entry.next;
|
|
}
|
|
if (state.corkedRequestsFree) {
|
|
state.corkedRequestsFree.next = corkReq;
|
|
} else {
|
|
state.corkedRequestsFree = corkReq;
|
|
}
|
|
}
|
|
|
|
Object.defineProperty(Writable.prototype, 'destroyed', {
|
|
get: function () {
|
|
if (this._writableState === undefined) {
|
|
return false;
|
|
}
|
|
return this._writableState.destroyed;
|
|
},
|
|
set: function (value) {
|
|
// we ignore the value if the stream
|
|
// has not been initialized yet
|
|
if (!this._writableState) {
|
|
return;
|
|
}
|
|
|
|
// backward compatibility, the user is explicitly
|
|
// managing destroyed
|
|
this._writableState.destroyed = value;
|
|
}
|
|
});
|
|
|
|
Writable.prototype.destroy = destroyImpl.destroy;
|
|
Writable.prototype._undestroy = destroyImpl.undestroy;
|
|
Writable.prototype._destroy = function (err, cb) {
|
|
this.end();
|
|
cb(err);
|
|
};
|
|
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
|
|
|
|
},{"./_stream_duplex":128,"./internal/streams/destroy":134,"./internal/streams/stream":135,"_process":117,"core-util-is":50,"inherits":100,"process-nextick-args":116,"safe-buffer":137,"timers":155,"util-deprecate":156}],133:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
var Buffer = require('safe-buffer').Buffer;
|
|
var util = require('util');
|
|
|
|
function copyBuffer(src, target, offset) {
|
|
src.copy(target, offset);
|
|
}
|
|
|
|
module.exports = function () {
|
|
function BufferList() {
|
|
_classCallCheck(this, BufferList);
|
|
|
|
this.head = null;
|
|
this.tail = null;
|
|
this.length = 0;
|
|
}
|
|
|
|
BufferList.prototype.push = function push(v) {
|
|
var entry = { data: v, next: null };
|
|
if (this.length > 0) this.tail.next = entry;else this.head = entry;
|
|
this.tail = entry;
|
|
++this.length;
|
|
};
|
|
|
|
BufferList.prototype.unshift = function unshift(v) {
|
|
var entry = { data: v, next: this.head };
|
|
if (this.length === 0) this.tail = entry;
|
|
this.head = entry;
|
|
++this.length;
|
|
};
|
|
|
|
BufferList.prototype.shift = function shift() {
|
|
if (this.length === 0) return;
|
|
var ret = this.head.data;
|
|
if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
|
|
--this.length;
|
|
return ret;
|
|
};
|
|
|
|
BufferList.prototype.clear = function clear() {
|
|
this.head = this.tail = null;
|
|
this.length = 0;
|
|
};
|
|
|
|
BufferList.prototype.join = function join(s) {
|
|
if (this.length === 0) return '';
|
|
var p = this.head;
|
|
var ret = '' + p.data;
|
|
while (p = p.next) {
|
|
ret += s + p.data;
|
|
}return ret;
|
|
};
|
|
|
|
BufferList.prototype.concat = function concat(n) {
|
|
if (this.length === 0) return Buffer.alloc(0);
|
|
if (this.length === 1) return this.head.data;
|
|
var ret = Buffer.allocUnsafe(n >>> 0);
|
|
var p = this.head;
|
|
var i = 0;
|
|
while (p) {
|
|
copyBuffer(p.data, ret, i);
|
|
i += p.data.length;
|
|
p = p.next;
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
return BufferList;
|
|
}();
|
|
|
|
if (util && util.inspect && util.inspect.custom) {
|
|
module.exports.prototype[util.inspect.custom] = function () {
|
|
var obj = util.inspect({ length: this.length });
|
|
return this.constructor.name + ' ' + obj;
|
|
};
|
|
}
|
|
},{"safe-buffer":137,"util":18}],134:[function(require,module,exports){
|
|
'use strict';
|
|
|
|
/*<replacement>*/
|
|
|
|
var pna = require('process-nextick-args');
|
|
/*</replacement>*/
|
|
|
|
// undocumented cb() API, needed for core, not for public API
|
|
function destroy(err, cb) {
|
|
var _this = this;
|
|
|
|
var readableDestroyed = this._readableState && this._readableState.destroyed;
|
|
var writableDestroyed = this._writableState && this._writableState.destroyed;
|
|
|
|
if (readableDestroyed || writableDestroyed) {
|
|
if (cb) {
|
|
cb(err);
|
|
} else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
|
|
pna.nextTick(emitErrorNT, this, err);
|
|
}
|
|
return this;
|
|
}
|
|
|
|
// we set destroyed to true before firing error callbacks in order
|
|
// to make it re-entrance safe in case destroy() is called within callbacks
|
|
|
|
if (this._readableState) {
|
|
this._readableState.destroyed = true;
|
|
}
|
|
|
|
// if this is a duplex stream mark the writable part as destroyed as well
|
|
if (this._writableState) {
|
|
this._writableState.destroyed = true;
|
|
}
|
|
|
|
this._destroy(err || null, function (err) {
|
|
if (!cb && err) {
|
|
pna.nextTick(emitErrorNT, _this, err);
|
|
if (_this._writableState) {
|
|
_this._writableState.errorEmitted = true;
|
|
}
|
|
} else if (cb) {
|
|
cb(err);
|
|
}
|
|
});
|
|
|
|
return this;
|
|
}
|
|
|
|
function undestroy() {
|
|
if (this._readableState) {
|
|
this._readableState.destroyed = false;
|
|
this._readableState.reading = false;
|
|
this._readableState.ended = false;
|
|
this._readableState.endEmitted = false;
|
|
}
|
|
|
|
if (this._writableState) {
|
|
this._writableState.destroyed = false;
|
|
this._writableState.ended = false;
|
|
this._writableState.ending = false;
|
|
this._writableState.finished = false;
|
|
this._writableState.errorEmitted = false;
|
|
}
|
|
}
|
|
|
|
function emitErrorNT(self, err) {
|
|
self.emit('error', err);
|
|
}
|
|
|
|
module.exports = {
|
|
destroy: destroy,
|
|
undestroy: undestroy
|
|
};
|
|
},{"process-nextick-args":116}],135:[function(require,module,exports){
|
|
module.exports = require('events').EventEmitter;
|
|
|
|
},{"events":83}],136:[function(require,module,exports){
|
|
var toString = {}.toString;
|
|
|
|
module.exports = Array.isArray || function (arr) {
|
|
return toString.call(arr) == '[object Array]';
|
|
};
|
|
|
|
},{}],137:[function(require,module,exports){
|
|
/* eslint-disable node/no-deprecated-api */
|
|
var buffer = require('buffer')
|
|
var Buffer = buffer.Buffer
|
|
|
|
// alternative to using Object.keys for old browsers
|
|
function copyProps (src, dst) {
|
|
for (var key in src) {
|
|
dst[key] = src[key]
|
|
}
|
|
}
|
|
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
|
|
module.exports = buffer
|
|
} else {
|
|
// Copy properties from require('buffer')
|
|
copyProps(buffer, exports)
|
|
exports.Buffer = SafeBuffer
|
|
}
|
|
|
|
function SafeBuffer (arg, encodingOrOffset, length) {
|
|
return Buffer(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
// Copy static methods from Buffer
|
|
copyProps(Buffer, SafeBuffer)
|
|
|
|
SafeBuffer.from = function (arg, encodingOrOffset, length) {
|
|
if (typeof arg === 'number') {
|
|
throw new TypeError('Argument must not be a number')
|
|
}
|
|
return Buffer(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
SafeBuffer.alloc = function (size, fill, encoding) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
var buf = Buffer(size)
|
|
if (fill !== undefined) {
|
|
if (typeof encoding === 'string') {
|
|
buf.fill(fill, encoding)
|
|
} else {
|
|
buf.fill(fill)
|
|
}
|
|
} else {
|
|
buf.fill(0)
|
|
}
|
|
return buf
|
|
}
|
|
|
|
SafeBuffer.allocUnsafe = function (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
return Buffer(size)
|
|
}
|
|
|
|
SafeBuffer.allocUnsafeSlow = function (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
return buffer.SlowBuffer(size)
|
|
}
|
|
|
|
},{"buffer":48}],138:[function(require,module,exports){
|
|
arguments[4][46][0].apply(exports,arguments)
|
|
},{"dup":46,"safe-buffer":137}],139:[function(require,module,exports){
|
|
module.exports = require('./readable').PassThrough
|
|
|
|
},{"./readable":140}],140:[function(require,module,exports){
|
|
exports = module.exports = require('./lib/_stream_readable.js');
|
|
exports.Stream = exports;
|
|
exports.Readable = exports;
|
|
exports.Writable = require('./lib/_stream_writable.js');
|
|
exports.Duplex = require('./lib/_stream_duplex.js');
|
|
exports.Transform = require('./lib/_stream_transform.js');
|
|
exports.PassThrough = require('./lib/_stream_passthrough.js');
|
|
|
|
},{"./lib/_stream_duplex.js":128,"./lib/_stream_passthrough.js":129,"./lib/_stream_readable.js":130,"./lib/_stream_transform.js":131,"./lib/_stream_writable.js":132}],141:[function(require,module,exports){
|
|
module.exports = require('./readable').Transform
|
|
|
|
},{"./readable":140}],142:[function(require,module,exports){
|
|
module.exports = require('./lib/_stream_writable.js');
|
|
|
|
},{"./lib/_stream_writable.js":132}],143:[function(require,module,exports){
|
|
'use strict'
|
|
var Buffer = require('buffer').Buffer
|
|
var inherits = require('inherits')
|
|
var HashBase = require('hash-base')
|
|
|
|
var ARRAY16 = new Array(16)
|
|
|
|
var zl = [
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
|
|
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
|
|
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
|
|
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
|
|
]
|
|
|
|
var zr = [
|
|
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
|
|
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
|
|
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
|
|
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
|
|
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
|
|
]
|
|
|
|
var sl = [
|
|
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
|
|
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
|
|
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
|
|
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
|
|
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
|
|
]
|
|
|
|
var sr = [
|
|
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
|
|
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
|
|
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
|
|
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
|
|
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
|
|
]
|
|
|
|
var hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]
|
|
var hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000]
|
|
|
|
function RIPEMD160 () {
|
|
HashBase.call(this, 64)
|
|
|
|
// state
|
|
this._a = 0x67452301
|
|
this._b = 0xefcdab89
|
|
this._c = 0x98badcfe
|
|
this._d = 0x10325476
|
|
this._e = 0xc3d2e1f0
|
|
}
|
|
|
|
inherits(RIPEMD160, HashBase)
|
|
|
|
RIPEMD160.prototype._update = function () {
|
|
var words = ARRAY16
|
|
for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4)
|
|
|
|
var al = this._a | 0
|
|
var bl = this._b | 0
|
|
var cl = this._c | 0
|
|
var dl = this._d | 0
|
|
var el = this._e | 0
|
|
|
|
var ar = this._a | 0
|
|
var br = this._b | 0
|
|
var cr = this._c | 0
|
|
var dr = this._d | 0
|
|
var er = this._e | 0
|
|
|
|
// computation
|
|
for (var i = 0; i < 80; i += 1) {
|
|
var tl
|
|
var tr
|
|
if (i < 16) {
|
|
tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i])
|
|
tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i])
|
|
} else if (i < 32) {
|
|
tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i])
|
|
tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i])
|
|
} else if (i < 48) {
|
|
tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i])
|
|
tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i])
|
|
} else if (i < 64) {
|
|
tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i])
|
|
tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i])
|
|
} else { // if (i<80) {
|
|
tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i])
|
|
tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i])
|
|
}
|
|
|
|
al = el
|
|
el = dl
|
|
dl = rotl(cl, 10)
|
|
cl = bl
|
|
bl = tl
|
|
|
|
ar = er
|
|
er = dr
|
|
dr = rotl(cr, 10)
|
|
cr = br
|
|
br = tr
|
|
}
|
|
|
|
// update state
|
|
var t = (this._b + cl + dr) | 0
|
|
this._b = (this._c + dl + er) | 0
|
|
this._c = (this._d + el + ar) | 0
|
|
this._d = (this._e + al + br) | 0
|
|
this._e = (this._a + bl + cr) | 0
|
|
this._a = t
|
|
}
|
|
|
|
RIPEMD160.prototype._digest = function () {
|
|
// create padding and handle blocks
|
|
this._block[this._blockOffset++] = 0x80
|
|
if (this._blockOffset > 56) {
|
|
this._block.fill(0, this._blockOffset, 64)
|
|
this._update()
|
|
this._blockOffset = 0
|
|
}
|
|
|
|
this._block.fill(0, this._blockOffset, 56)
|
|
this._block.writeUInt32LE(this._length[0], 56)
|
|
this._block.writeUInt32LE(this._length[1], 60)
|
|
this._update()
|
|
|
|
// produce result
|
|
var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20)
|
|
buffer.writeInt32LE(this._a, 0)
|
|
buffer.writeInt32LE(this._b, 4)
|
|
buffer.writeInt32LE(this._c, 8)
|
|
buffer.writeInt32LE(this._d, 12)
|
|
buffer.writeInt32LE(this._e, 16)
|
|
return buffer
|
|
}
|
|
|
|
function rotl (x, n) {
|
|
return (x << n) | (x >>> (32 - n))
|
|
}
|
|
|
|
function fn1 (a, b, c, d, e, m, k, s) {
|
|
return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
|
|
}
|
|
|
|
function fn2 (a, b, c, d, e, m, k, s) {
|
|
return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
|
|
}
|
|
|
|
function fn3 (a, b, c, d, e, m, k, s) {
|
|
return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
|
|
}
|
|
|
|
function fn4 (a, b, c, d, e, m, k, s) {
|
|
return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
|
|
}
|
|
|
|
function fn5 (a, b, c, d, e, m, k, s) {
|
|
return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
|
|
}
|
|
|
|
module.exports = RIPEMD160
|
|
|
|
},{"buffer":48,"hash-base":85,"inherits":100}],144:[function(require,module,exports){
|
|
/* eslint-disable node/no-deprecated-api */
|
|
var buffer = require('buffer')
|
|
var Buffer = buffer.Buffer
|
|
|
|
// alternative to using Object.keys for old browsers
|
|
function copyProps (src, dst) {
|
|
for (var key in src) {
|
|
dst[key] = src[key]
|
|
}
|
|
}
|
|
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
|
|
module.exports = buffer
|
|
} else {
|
|
// Copy properties from require('buffer')
|
|
copyProps(buffer, exports)
|
|
exports.Buffer = SafeBuffer
|
|
}
|
|
|
|
function SafeBuffer (arg, encodingOrOffset, length) {
|
|
return Buffer(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
SafeBuffer.prototype = Object.create(Buffer.prototype)
|
|
|
|
// Copy static methods from Buffer
|
|
copyProps(Buffer, SafeBuffer)
|
|
|
|
SafeBuffer.from = function (arg, encodingOrOffset, length) {
|
|
if (typeof arg === 'number') {
|
|
throw new TypeError('Argument must not be a number')
|
|
}
|
|
return Buffer(arg, encodingOrOffset, length)
|
|
}
|
|
|
|
SafeBuffer.alloc = function (size, fill, encoding) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
var buf = Buffer(size)
|
|
if (fill !== undefined) {
|
|
if (typeof encoding === 'string') {
|
|
buf.fill(fill, encoding)
|
|
} else {
|
|
buf.fill(fill)
|
|
}
|
|
} else {
|
|
buf.fill(0)
|
|
}
|
|
return buf
|
|
}
|
|
|
|
SafeBuffer.allocUnsafe = function (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
return Buffer(size)
|
|
}
|
|
|
|
SafeBuffer.allocUnsafeSlow = function (size) {
|
|
if (typeof size !== 'number') {
|
|
throw new TypeError('Argument must be a number')
|
|
}
|
|
return buffer.SlowBuffer(size)
|
|
}
|
|
|
|
},{"buffer":48}],145:[function(require,module,exports){
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
// prototype class for hash functions
|
|
function Hash (blockSize, finalSize) {
|
|
this._block = Buffer.alloc(blockSize)
|
|
this._finalSize = finalSize
|
|
this._blockSize = blockSize
|
|
this._len = 0
|
|
}
|
|
|
|
Hash.prototype.update = function (data, enc) {
|
|
if (typeof data === 'string') {
|
|
enc = enc || 'utf8'
|
|
data = Buffer.from(data, enc)
|
|
}
|
|
|
|
var block = this._block
|
|
var blockSize = this._blockSize
|
|
var length = data.length
|
|
var accum = this._len
|
|
|
|
for (var offset = 0; offset < length;) {
|
|
var assigned = accum % blockSize
|
|
var remainder = Math.min(length - offset, blockSize - assigned)
|
|
|
|
for (var i = 0; i < remainder; i++) {
|
|
block[assigned + i] = data[offset + i]
|
|
}
|
|
|
|
accum += remainder
|
|
offset += remainder
|
|
|
|
if ((accum % blockSize) === 0) {
|
|
this._update(block)
|
|
}
|
|
}
|
|
|
|
this._len += length
|
|
return this
|
|
}
|
|
|
|
Hash.prototype.digest = function (enc) {
|
|
var rem = this._len % this._blockSize
|
|
|
|
this._block[rem] = 0x80
|
|
|
|
// zero (rem + 1) trailing bits, where (rem + 1) is the smallest
|
|
// non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
|
|
this._block.fill(0, rem + 1)
|
|
|
|
if (rem >= this._finalSize) {
|
|
this._update(this._block)
|
|
this._block.fill(0)
|
|
}
|
|
|
|
var bits = this._len * 8
|
|
|
|
// uint32
|
|
if (bits <= 0xffffffff) {
|
|
this._block.writeUInt32BE(bits, this._blockSize - 4)
|
|
|
|
// uint64
|
|
} else {
|
|
var lowBits = (bits & 0xffffffff) >>> 0
|
|
var highBits = (bits - lowBits) / 0x100000000
|
|
|
|
this._block.writeUInt32BE(highBits, this._blockSize - 8)
|
|
this._block.writeUInt32BE(lowBits, this._blockSize - 4)
|
|
}
|
|
|
|
this._update(this._block)
|
|
var hash = this._hash()
|
|
|
|
return enc ? hash.toString(enc) : hash
|
|
}
|
|
|
|
Hash.prototype._update = function () {
|
|
throw new Error('_update must be implemented by subclass')
|
|
}
|
|
|
|
module.exports = Hash
|
|
|
|
},{"safe-buffer":144}],146:[function(require,module,exports){
|
|
var exports = module.exports = function SHA (algorithm) {
|
|
algorithm = algorithm.toLowerCase()
|
|
|
|
var Algorithm = exports[algorithm]
|
|
if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
|
|
|
|
return new Algorithm()
|
|
}
|
|
|
|
exports.sha = require('./sha')
|
|
exports.sha1 = require('./sha1')
|
|
exports.sha224 = require('./sha224')
|
|
exports.sha256 = require('./sha256')
|
|
exports.sha384 = require('./sha384')
|
|
exports.sha512 = require('./sha512')
|
|
|
|
},{"./sha":147,"./sha1":148,"./sha224":149,"./sha256":150,"./sha384":151,"./sha512":152}],147:[function(require,module,exports){
|
|
/*
|
|
* A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
|
|
* in FIPS PUB 180-1
|
|
* This source code is derived from sha1.js of the same repository.
|
|
* The difference between SHA-0 and SHA-1 is just a bitwise rotate left
|
|
* operation was added.
|
|
*/
|
|
|
|
var inherits = require('inherits')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var K = [
|
|
0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
|
|
]
|
|
|
|
var W = new Array(80)
|
|
|
|
function Sha () {
|
|
this.init()
|
|
this._w = W
|
|
|
|
Hash.call(this, 64, 56)
|
|
}
|
|
|
|
inherits(Sha, Hash)
|
|
|
|
Sha.prototype.init = function () {
|
|
this._a = 0x67452301
|
|
this._b = 0xefcdab89
|
|
this._c = 0x98badcfe
|
|
this._d = 0x10325476
|
|
this._e = 0xc3d2e1f0
|
|
|
|
return this
|
|
}
|
|
|
|
function rotl5 (num) {
|
|
return (num << 5) | (num >>> 27)
|
|
}
|
|
|
|
function rotl30 (num) {
|
|
return (num << 30) | (num >>> 2)
|
|
}
|
|
|
|
function ft (s, b, c, d) {
|
|
if (s === 0) return (b & c) | ((~b) & d)
|
|
if (s === 2) return (b & c) | (b & d) | (c & d)
|
|
return b ^ c ^ d
|
|
}
|
|
|
|
Sha.prototype._update = function (M) {
|
|
var W = this._w
|
|
|
|
var a = this._a | 0
|
|
var b = this._b | 0
|
|
var c = this._c | 0
|
|
var d = this._d | 0
|
|
var e = this._e | 0
|
|
|
|
for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
|
|
for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
|
|
|
|
for (var j = 0; j < 80; ++j) {
|
|
var s = ~~(j / 20)
|
|
var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
|
|
|
|
e = d
|
|
d = c
|
|
c = rotl30(b)
|
|
b = a
|
|
a = t
|
|
}
|
|
|
|
this._a = (a + this._a) | 0
|
|
this._b = (b + this._b) | 0
|
|
this._c = (c + this._c) | 0
|
|
this._d = (d + this._d) | 0
|
|
this._e = (e + this._e) | 0
|
|
}
|
|
|
|
Sha.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(20)
|
|
|
|
H.writeInt32BE(this._a | 0, 0)
|
|
H.writeInt32BE(this._b | 0, 4)
|
|
H.writeInt32BE(this._c | 0, 8)
|
|
H.writeInt32BE(this._d | 0, 12)
|
|
H.writeInt32BE(this._e | 0, 16)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha
|
|
|
|
},{"./hash":145,"inherits":100,"safe-buffer":144}],148:[function(require,module,exports){
|
|
/*
|
|
* A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
|
|
* in FIPS PUB 180-1
|
|
* Version 2.1a Copyright Paul Johnston 2000 - 2002.
|
|
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
|
|
* Distributed under the BSD License
|
|
* See http://pajhome.org.uk/crypt/md5 for details.
|
|
*/
|
|
|
|
var inherits = require('inherits')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var K = [
|
|
0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
|
|
]
|
|
|
|
var W = new Array(80)
|
|
|
|
function Sha1 () {
|
|
this.init()
|
|
this._w = W
|
|
|
|
Hash.call(this, 64, 56)
|
|
}
|
|
|
|
inherits(Sha1, Hash)
|
|
|
|
Sha1.prototype.init = function () {
|
|
this._a = 0x67452301
|
|
this._b = 0xefcdab89
|
|
this._c = 0x98badcfe
|
|
this._d = 0x10325476
|
|
this._e = 0xc3d2e1f0
|
|
|
|
return this
|
|
}
|
|
|
|
function rotl1 (num) {
|
|
return (num << 1) | (num >>> 31)
|
|
}
|
|
|
|
function rotl5 (num) {
|
|
return (num << 5) | (num >>> 27)
|
|
}
|
|
|
|
function rotl30 (num) {
|
|
return (num << 30) | (num >>> 2)
|
|
}
|
|
|
|
function ft (s, b, c, d) {
|
|
if (s === 0) return (b & c) | ((~b) & d)
|
|
if (s === 2) return (b & c) | (b & d) | (c & d)
|
|
return b ^ c ^ d
|
|
}
|
|
|
|
Sha1.prototype._update = function (M) {
|
|
var W = this._w
|
|
|
|
var a = this._a | 0
|
|
var b = this._b | 0
|
|
var c = this._c | 0
|
|
var d = this._d | 0
|
|
var e = this._e | 0
|
|
|
|
for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
|
|
for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
|
|
|
|
for (var j = 0; j < 80; ++j) {
|
|
var s = ~~(j / 20)
|
|
var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
|
|
|
|
e = d
|
|
d = c
|
|
c = rotl30(b)
|
|
b = a
|
|
a = t
|
|
}
|
|
|
|
this._a = (a + this._a) | 0
|
|
this._b = (b + this._b) | 0
|
|
this._c = (c + this._c) | 0
|
|
this._d = (d + this._d) | 0
|
|
this._e = (e + this._e) | 0
|
|
}
|
|
|
|
Sha1.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(20)
|
|
|
|
H.writeInt32BE(this._a | 0, 0)
|
|
H.writeInt32BE(this._b | 0, 4)
|
|
H.writeInt32BE(this._c | 0, 8)
|
|
H.writeInt32BE(this._d | 0, 12)
|
|
H.writeInt32BE(this._e | 0, 16)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha1
|
|
|
|
},{"./hash":145,"inherits":100,"safe-buffer":144}],149:[function(require,module,exports){
|
|
/**
|
|
* A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
|
|
* in FIPS 180-2
|
|
* Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
|
|
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
|
|
*
|
|
*/
|
|
|
|
var inherits = require('inherits')
|
|
var Sha256 = require('./sha256')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var W = new Array(64)
|
|
|
|
function Sha224 () {
|
|
this.init()
|
|
|
|
this._w = W // new Array(64)
|
|
|
|
Hash.call(this, 64, 56)
|
|
}
|
|
|
|
inherits(Sha224, Sha256)
|
|
|
|
Sha224.prototype.init = function () {
|
|
this._a = 0xc1059ed8
|
|
this._b = 0x367cd507
|
|
this._c = 0x3070dd17
|
|
this._d = 0xf70e5939
|
|
this._e = 0xffc00b31
|
|
this._f = 0x68581511
|
|
this._g = 0x64f98fa7
|
|
this._h = 0xbefa4fa4
|
|
|
|
return this
|
|
}
|
|
|
|
Sha224.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(28)
|
|
|
|
H.writeInt32BE(this._a, 0)
|
|
H.writeInt32BE(this._b, 4)
|
|
H.writeInt32BE(this._c, 8)
|
|
H.writeInt32BE(this._d, 12)
|
|
H.writeInt32BE(this._e, 16)
|
|
H.writeInt32BE(this._f, 20)
|
|
H.writeInt32BE(this._g, 24)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha224
|
|
|
|
},{"./hash":145,"./sha256":150,"inherits":100,"safe-buffer":144}],150:[function(require,module,exports){
|
|
/**
|
|
* A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
|
|
* in FIPS 180-2
|
|
* Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
|
|
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
|
|
*
|
|
*/
|
|
|
|
var inherits = require('inherits')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var K = [
|
|
0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
|
|
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
|
|
0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
|
|
0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
|
|
0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
|
|
0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
|
|
0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
|
|
0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
|
|
0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
|
|
0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
|
|
0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
|
|
0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
|
|
0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
|
|
0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
|
|
0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
|
|
0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
|
|
]
|
|
|
|
var W = new Array(64)
|
|
|
|
function Sha256 () {
|
|
this.init()
|
|
|
|
this._w = W // new Array(64)
|
|
|
|
Hash.call(this, 64, 56)
|
|
}
|
|
|
|
inherits(Sha256, Hash)
|
|
|
|
Sha256.prototype.init = function () {
|
|
this._a = 0x6a09e667
|
|
this._b = 0xbb67ae85
|
|
this._c = 0x3c6ef372
|
|
this._d = 0xa54ff53a
|
|
this._e = 0x510e527f
|
|
this._f = 0x9b05688c
|
|
this._g = 0x1f83d9ab
|
|
this._h = 0x5be0cd19
|
|
|
|
return this
|
|
}
|
|
|
|
function ch (x, y, z) {
|
|
return z ^ (x & (y ^ z))
|
|
}
|
|
|
|
function maj (x, y, z) {
|
|
return (x & y) | (z & (x | y))
|
|
}
|
|
|
|
function sigma0 (x) {
|
|
return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
|
|
}
|
|
|
|
function sigma1 (x) {
|
|
return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
|
|
}
|
|
|
|
function gamma0 (x) {
|
|
return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
|
|
}
|
|
|
|
function gamma1 (x) {
|
|
return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
|
|
}
|
|
|
|
Sha256.prototype._update = function (M) {
|
|
var W = this._w
|
|
|
|
var a = this._a | 0
|
|
var b = this._b | 0
|
|
var c = this._c | 0
|
|
var d = this._d | 0
|
|
var e = this._e | 0
|
|
var f = this._f | 0
|
|
var g = this._g | 0
|
|
var h = this._h | 0
|
|
|
|
for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
|
|
for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
|
|
|
|
for (var j = 0; j < 64; ++j) {
|
|
var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
|
|
var T2 = (sigma0(a) + maj(a, b, c)) | 0
|
|
|
|
h = g
|
|
g = f
|
|
f = e
|
|
e = (d + T1) | 0
|
|
d = c
|
|
c = b
|
|
b = a
|
|
a = (T1 + T2) | 0
|
|
}
|
|
|
|
this._a = (a + this._a) | 0
|
|
this._b = (b + this._b) | 0
|
|
this._c = (c + this._c) | 0
|
|
this._d = (d + this._d) | 0
|
|
this._e = (e + this._e) | 0
|
|
this._f = (f + this._f) | 0
|
|
this._g = (g + this._g) | 0
|
|
this._h = (h + this._h) | 0
|
|
}
|
|
|
|
Sha256.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(32)
|
|
|
|
H.writeInt32BE(this._a, 0)
|
|
H.writeInt32BE(this._b, 4)
|
|
H.writeInt32BE(this._c, 8)
|
|
H.writeInt32BE(this._d, 12)
|
|
H.writeInt32BE(this._e, 16)
|
|
H.writeInt32BE(this._f, 20)
|
|
H.writeInt32BE(this._g, 24)
|
|
H.writeInt32BE(this._h, 28)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha256
|
|
|
|
},{"./hash":145,"inherits":100,"safe-buffer":144}],151:[function(require,module,exports){
|
|
var inherits = require('inherits')
|
|
var SHA512 = require('./sha512')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var W = new Array(160)
|
|
|
|
function Sha384 () {
|
|
this.init()
|
|
this._w = W
|
|
|
|
Hash.call(this, 128, 112)
|
|
}
|
|
|
|
inherits(Sha384, SHA512)
|
|
|
|
Sha384.prototype.init = function () {
|
|
this._ah = 0xcbbb9d5d
|
|
this._bh = 0x629a292a
|
|
this._ch = 0x9159015a
|
|
this._dh = 0x152fecd8
|
|
this._eh = 0x67332667
|
|
this._fh = 0x8eb44a87
|
|
this._gh = 0xdb0c2e0d
|
|
this._hh = 0x47b5481d
|
|
|
|
this._al = 0xc1059ed8
|
|
this._bl = 0x367cd507
|
|
this._cl = 0x3070dd17
|
|
this._dl = 0xf70e5939
|
|
this._el = 0xffc00b31
|
|
this._fl = 0x68581511
|
|
this._gl = 0x64f98fa7
|
|
this._hl = 0xbefa4fa4
|
|
|
|
return this
|
|
}
|
|
|
|
Sha384.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(48)
|
|
|
|
function writeInt64BE (h, l, offset) {
|
|
H.writeInt32BE(h, offset)
|
|
H.writeInt32BE(l, offset + 4)
|
|
}
|
|
|
|
writeInt64BE(this._ah, this._al, 0)
|
|
writeInt64BE(this._bh, this._bl, 8)
|
|
writeInt64BE(this._ch, this._cl, 16)
|
|
writeInt64BE(this._dh, this._dl, 24)
|
|
writeInt64BE(this._eh, this._el, 32)
|
|
writeInt64BE(this._fh, this._fl, 40)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha384
|
|
|
|
},{"./hash":145,"./sha512":152,"inherits":100,"safe-buffer":144}],152:[function(require,module,exports){
|
|
var inherits = require('inherits')
|
|
var Hash = require('./hash')
|
|
var Buffer = require('safe-buffer').Buffer
|
|
|
|
var K = [
|
|
0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
|
|
0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
|
|
0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
|
|
0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
|
|
0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
|
|
0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
|
|
0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
|
|
0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
|
|
0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
|
|
0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
|
|
0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
|
|
0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
|
|
0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
|
|
0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
|
|
0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
|
|
0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
|
|
0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
|
|
0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
|
|
0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
|
|
0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
|
|
0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
|
|
0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
|
|
0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
|
|
0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
|
|
0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
|
|
0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
|
|
0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
|
|
0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
|
|
0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
|
|
0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
|
|
0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
|
|
0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
|
|
0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
|
|
0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
|
|
0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
|
|
0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
|
|
0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
|
|
0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
|
|
0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
|
|
0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
|
|
]
|
|
|
|
var W = new Array(160)
|
|
|
|
function Sha512 () {
|
|
this.init()
|
|
this._w = W
|
|
|
|
Hash.call(this, 128, 112)
|
|
}
|
|
|
|
inherits(Sha512, Hash)
|
|
|
|
Sha512.prototype.init = function () {
|
|
this._ah = 0x6a09e667
|
|
this._bh = 0xbb67ae85
|
|
this._ch = 0x3c6ef372
|
|
this._dh = 0xa54ff53a
|
|
this._eh = 0x510e527f
|
|
this._fh = 0x9b05688c
|
|
this._gh = 0x1f83d9ab
|
|
this._hh = 0x5be0cd19
|
|
|
|
this._al = 0xf3bcc908
|
|
this._bl = 0x84caa73b
|
|
this._cl = 0xfe94f82b
|
|
this._dl = 0x5f1d36f1
|
|
this._el = 0xade682d1
|
|
this._fl = 0x2b3e6c1f
|
|
this._gl = 0xfb41bd6b
|
|
this._hl = 0x137e2179
|
|
|
|
return this
|
|
}
|
|
|
|
function Ch (x, y, z) {
|
|
return z ^ (x & (y ^ z))
|
|
}
|
|
|
|
function maj (x, y, z) {
|
|
return (x & y) | (z & (x | y))
|
|
}
|
|
|
|
function sigma0 (x, xl) {
|
|
return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
|
|
}
|
|
|
|
function sigma1 (x, xl) {
|
|
return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
|
|
}
|
|
|
|
function Gamma0 (x, xl) {
|
|
return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
|
|
}
|
|
|
|
function Gamma0l (x, xl) {
|
|
return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
|
|
}
|
|
|
|
function Gamma1 (x, xl) {
|
|
return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
|
|
}
|
|
|
|
function Gamma1l (x, xl) {
|
|
return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
|
|
}
|
|
|
|
function getCarry (a, b) {
|
|
return (a >>> 0) < (b >>> 0) ? 1 : 0
|
|
}
|
|
|
|
Sha512.prototype._update = function (M) {
|
|
var W = this._w
|
|
|
|
var ah = this._ah | 0
|
|
var bh = this._bh | 0
|
|
var ch = this._ch | 0
|
|
var dh = this._dh | 0
|
|
var eh = this._eh | 0
|
|
var fh = this._fh | 0
|
|
var gh = this._gh | 0
|
|
var hh = this._hh | 0
|
|
|
|
var al = this._al | 0
|
|
var bl = this._bl | 0
|
|
var cl = this._cl | 0
|
|
var dl = this._dl | 0
|
|
var el = this._el | 0
|
|
var fl = this._fl | 0
|
|
var gl = this._gl | 0
|
|
var hl = this._hl | 0
|
|
|
|
for (var i = 0; i < 32; i += 2) {
|
|
W[i] = M.readInt32BE(i * 4)
|
|
W[i + 1] = M.readInt32BE(i * 4 + 4)
|
|
}
|
|
for (; i < 160; i += 2) {
|
|
var xh = W[i - 15 * 2]
|
|
var xl = W[i - 15 * 2 + 1]
|
|
var gamma0 = Gamma0(xh, xl)
|
|
var gamma0l = Gamma0l(xl, xh)
|
|
|
|
xh = W[i - 2 * 2]
|
|
xl = W[i - 2 * 2 + 1]
|
|
var gamma1 = Gamma1(xh, xl)
|
|
var gamma1l = Gamma1l(xl, xh)
|
|
|
|
// W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
|
|
var Wi7h = W[i - 7 * 2]
|
|
var Wi7l = W[i - 7 * 2 + 1]
|
|
|
|
var Wi16h = W[i - 16 * 2]
|
|
var Wi16l = W[i - 16 * 2 + 1]
|
|
|
|
var Wil = (gamma0l + Wi7l) | 0
|
|
var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
|
|
Wil = (Wil + gamma1l) | 0
|
|
Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
|
|
Wil = (Wil + Wi16l) | 0
|
|
Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
|
|
|
|
W[i] = Wih
|
|
W[i + 1] = Wil
|
|
}
|
|
|
|
for (var j = 0; j < 160; j += 2) {
|
|
Wih = W[j]
|
|
Wil = W[j + 1]
|
|
|
|
var majh = maj(ah, bh, ch)
|
|
var majl = maj(al, bl, cl)
|
|
|
|
var sigma0h = sigma0(ah, al)
|
|
var sigma0l = sigma0(al, ah)
|
|
var sigma1h = sigma1(eh, el)
|
|
var sigma1l = sigma1(el, eh)
|
|
|
|
// t1 = h + sigma1 + ch + K[j] + W[j]
|
|
var Kih = K[j]
|
|
var Kil = K[j + 1]
|
|
|
|
var chh = Ch(eh, fh, gh)
|
|
var chl = Ch(el, fl, gl)
|
|
|
|
var t1l = (hl + sigma1l) | 0
|
|
var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
|
|
t1l = (t1l + chl) | 0
|
|
t1h = (t1h + chh + getCarry(t1l, chl)) | 0
|
|
t1l = (t1l + Kil) | 0
|
|
t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
|
|
t1l = (t1l + Wil) | 0
|
|
t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
|
|
|
|
// t2 = sigma0 + maj
|
|
var t2l = (sigma0l + majl) | 0
|
|
var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
|
|
|
|
hh = gh
|
|
hl = gl
|
|
gh = fh
|
|
gl = fl
|
|
fh = eh
|
|
fl = el
|
|
el = (dl + t1l) | 0
|
|
eh = (dh + t1h + getCarry(el, dl)) | 0
|
|
dh = ch
|
|
dl = cl
|
|
ch = bh
|
|
cl = bl
|
|
bh = ah
|
|
bl = al
|
|
al = (t1l + t2l) | 0
|
|
ah = (t1h + t2h + getCarry(al, t1l)) | 0
|
|
}
|
|
|
|
this._al = (this._al + al) | 0
|
|
this._bl = (this._bl + bl) | 0
|
|
this._cl = (this._cl + cl) | 0
|
|
this._dl = (this._dl + dl) | 0
|
|
this._el = (this._el + el) | 0
|
|
this._fl = (this._fl + fl) | 0
|
|
this._gl = (this._gl + gl) | 0
|
|
this._hl = (this._hl + hl) | 0
|
|
|
|
this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
|
|
this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
|
|
this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
|
|
this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
|
|
this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
|
|
this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
|
|
this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
|
|
this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
|
|
}
|
|
|
|
Sha512.prototype._hash = function () {
|
|
var H = Buffer.allocUnsafe(64)
|
|
|
|
function writeInt64BE (h, l, offset) {
|
|
H.writeInt32BE(h, offset)
|
|
H.writeInt32BE(l, offset + 4)
|
|
}
|
|
|
|
writeInt64BE(this._ah, this._al, 0)
|
|
writeInt64BE(this._bh, this._bl, 8)
|
|
writeInt64BE(this._ch, this._cl, 16)
|
|
writeInt64BE(this._dh, this._dl, 24)
|
|
writeInt64BE(this._eh, this._el, 32)
|
|
writeInt64BE(this._fh, this._fl, 40)
|
|
writeInt64BE(this._gh, this._gl, 48)
|
|
writeInt64BE(this._hh, this._hl, 56)
|
|
|
|
return H
|
|
}
|
|
|
|
module.exports = Sha512
|
|
|
|
},{"./hash":145,"inherits":100,"safe-buffer":144}],153:[function(require,module,exports){
|
|
"use strict";var sjcl={cipher:{},hash:{},keyexchange:{},mode:{},misc:{},codec:{},exception:{corrupt:function(a){this.toString=function(){return"CORRUPT: "+this.message};this.message=a},invalid:function(a){this.toString=function(){return"INVALID: "+this.message};this.message=a},bug:function(a){this.toString=function(){return"BUG: "+this.message};this.message=a},notReady:function(a){this.toString=function(){return"NOT READY: "+this.message};this.message=a}}};
|
|
sjcl.cipher.aes=function(a){this.s[0][0][0]||this.O();var b,c,d,e,f=this.s[0][4],g=this.s[1];b=a.length;var h=1;if(4!==b&&6!==b&&8!==b)throw new sjcl.exception.invalid("invalid aes key size");this.b=[d=a.slice(0),e=[]];for(a=b;a<4*b+28;a++){c=d[a-1];if(0===a%b||8===b&&4===a%b)c=f[c>>>24]<<24^f[c>>16&255]<<16^f[c>>8&255]<<8^f[c&255],0===a%b&&(c=c<<8^c>>>24^h<<24,h=h<<1^283*(h>>7));d[a]=d[a-b]^c}for(b=0;a;b++,a--)c=d[b&3?a:a-4],e[b]=4>=a||4>b?c:g[0][f[c>>>24]]^g[1][f[c>>16&255]]^g[2][f[c>>8&255]]^g[3][f[c&
|
|
255]]};
|
|
sjcl.cipher.aes.prototype={encrypt:function(a){return t(this,a,0)},decrypt:function(a){return t(this,a,1)},s:[[[],[],[],[],[]],[[],[],[],[],[]]],O:function(){var a=this.s[0],b=this.s[1],c=a[4],d=b[4],e,f,g,h=[],k=[],l,n,m,p;for(e=0;0x100>e;e++)k[(h[e]=e<<1^283*(e>>7))^e]=e;for(f=g=0;!c[f];f^=l||1,g=k[g]||1)for(m=g^g<<1^g<<2^g<<3^g<<4,m=m>>8^m&255^99,c[f]=m,d[m]=f,n=h[e=h[l=h[f]]],p=0x1010101*n^0x10001*e^0x101*l^0x1010100*f,n=0x101*h[m]^0x1010100*m,e=0;4>e;e++)a[e][f]=n=n<<24^n>>>8,b[e][m]=p=p<<24^p>>>8;for(e=
|
|
0;5>e;e++)a[e]=a[e].slice(0),b[e]=b[e].slice(0)}};
|
|
function t(a,b,c){if(4!==b.length)throw new sjcl.exception.invalid("invalid aes block size");var d=a.b[c],e=b[0]^d[0],f=b[c?3:1]^d[1],g=b[2]^d[2];b=b[c?1:3]^d[3];var h,k,l,n=d.length/4-2,m,p=4,r=[0,0,0,0];h=a.s[c];a=h[0];var q=h[1],v=h[2],w=h[3],x=h[4];for(m=0;m<n;m++)h=a[e>>>24]^q[f>>16&255]^v[g>>8&255]^w[b&255]^d[p],k=a[f>>>24]^q[g>>16&255]^v[b>>8&255]^w[e&255]^d[p+1],l=a[g>>>24]^q[b>>16&255]^v[e>>8&255]^w[f&255]^d[p+2],b=a[b>>>24]^q[e>>16&255]^v[f>>8&255]^w[g&255]^d[p+3],p+=4,e=h,f=k,g=l;for(m=
|
|
0;4>m;m++)r[c?3&-m:m]=x[e>>>24]<<24^x[f>>16&255]<<16^x[g>>8&255]<<8^x[b&255]^d[p++],h=e,e=f,f=g,g=b,b=h;return r}
|
|
sjcl.bitArray={bitSlice:function(a,b,c){a=sjcl.bitArray.$(a.slice(b/32),32-(b&31)).slice(1);return void 0===c?a:sjcl.bitArray.clamp(a,c-b)},extract:function(a,b,c){var d=Math.floor(-b-c&31);return((b+c-1^b)&-32?a[b/32|0]<<32-d^a[b/32+1|0]>>>d:a[b/32|0]>>>d)&(1<<c)-1},concat:function(a,b){if(0===a.length||0===b.length)return a.concat(b);var c=a[a.length-1],d=sjcl.bitArray.getPartial(c);return 32===d?a.concat(b):sjcl.bitArray.$(b,d,c|0,a.slice(0,a.length-1))},bitLength:function(a){var b=a.length;return 0===
|
|
b?0:32*(b-1)+sjcl.bitArray.getPartial(a[b-1])},clamp:function(a,b){if(32*a.length<b)return a;a=a.slice(0,Math.ceil(b/32));var c=a.length;b=b&31;0<c&&b&&(a[c-1]=sjcl.bitArray.partial(b,a[c-1]&2147483648>>b-1,1));return a},partial:function(a,b,c){return 32===a?b:(c?b|0:b<<32-a)+0x10000000000*a},getPartial:function(a){return Math.round(a/0x10000000000)||32},equal:function(a,b){if(sjcl.bitArray.bitLength(a)!==sjcl.bitArray.bitLength(b))return!1;var c=0,d;for(d=0;d<a.length;d++)c|=a[d]^b[d];return 0===
|
|
c},$:function(a,b,c,d){var e;e=0;for(void 0===d&&(d=[]);32<=b;b-=32)d.push(c),c=0;if(0===b)return d.concat(a);for(e=0;e<a.length;e++)d.push(c|a[e]>>>b),c=a[e]<<32-b;e=a.length?a[a.length-1]:0;a=sjcl.bitArray.getPartial(e);d.push(sjcl.bitArray.partial(b+a&31,32<b+a?c:d.pop(),1));return d},i:function(a,b){return[a[0]^b[0],a[1]^b[1],a[2]^b[2],a[3]^b[3]]},byteswapM:function(a){var b,c;for(b=0;b<a.length;++b)c=a[b],a[b]=c>>>24|c>>>8&0xff00|(c&0xff00)<<8|c<<24;return a}};
|
|
sjcl.codec.utf8String={fromBits:function(a){var b="",c=sjcl.bitArray.bitLength(a),d,e;for(d=0;d<c/8;d++)0===(d&3)&&(e=a[d/4]),b+=String.fromCharCode(e>>>8>>>8>>>8),e<<=8;return decodeURIComponent(escape(b))},toBits:function(a){a=unescape(encodeURIComponent(a));var b=[],c,d=0;for(c=0;c<a.length;c++)d=d<<8|a.charCodeAt(c),3===(c&3)&&(b.push(d),d=0);c&3&&b.push(sjcl.bitArray.partial(8*(c&3),d));return b}};
|
|
sjcl.codec.hex={fromBits:function(a){var b="",c;for(c=0;c<a.length;c++)b+=((a[c]|0)+0xf00000000000).toString(16).substr(4);return b.substr(0,sjcl.bitArray.bitLength(a)/4)},toBits:function(a){var b,c=[],d;a=a.replace(/\s|0x/g,"");d=a.length;a=a+"00000000";for(b=0;b<a.length;b+=8)c.push(parseInt(a.substr(b,8),16)^0);return sjcl.bitArray.clamp(c,4*d)}};
|
|
sjcl.codec.base32={B:"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567",X:"0123456789ABCDEFGHIJKLMNOPQRSTUV",BITS:32,BASE:5,REMAINING:27,fromBits:function(a,b,c){var d=sjcl.codec.base32.BASE,e=sjcl.codec.base32.REMAINING,f="",g=0,h=sjcl.codec.base32.B,k=0,l=sjcl.bitArray.bitLength(a);c&&(h=sjcl.codec.base32.X);for(c=0;f.length*d<l;)f+=h.charAt((k^a[c]>>>g)>>>e),g<d?(k=a[c]<<d-g,g+=e,c++):(k<<=d,g-=d);for(;f.length&7&&!b;)f+="=";return f},toBits:function(a,b){a=a.replace(/\s|=/g,"").toUpperCase();var c=sjcl.codec.base32.BITS,
|
|
d=sjcl.codec.base32.BASE,e=sjcl.codec.base32.REMAINING,f=[],g,h=0,k=sjcl.codec.base32.B,l=0,n,m="base32";b&&(k=sjcl.codec.base32.X,m="base32hex");for(g=0;g<a.length;g++){n=k.indexOf(a.charAt(g));if(0>n){if(!b)try{return sjcl.codec.base32hex.toBits(a)}catch(p){}throw new sjcl.exception.invalid("this isn't "+m+"!");}h>e?(h-=e,f.push(l^n>>>h),l=n<<c-h):(h+=d,l^=n<<c-h)}h&56&&f.push(sjcl.bitArray.partial(h&56,l,1));return f}};
|
|
sjcl.codec.base32hex={fromBits:function(a,b){return sjcl.codec.base32.fromBits(a,b,1)},toBits:function(a){return sjcl.codec.base32.toBits(a,1)}};
|
|
sjcl.codec.base64={B:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",fromBits:function(a,b,c){var d="",e=0,f=sjcl.codec.base64.B,g=0,h=sjcl.bitArray.bitLength(a);c&&(f=f.substr(0,62)+"-_");for(c=0;6*d.length<h;)d+=f.charAt((g^a[c]>>>e)>>>26),6>e?(g=a[c]<<6-e,e+=26,c++):(g<<=6,e-=6);for(;d.length&3&&!b;)d+="=";return d},toBits:function(a,b){a=a.replace(/\s|=/g,"");var c=[],d,e=0,f=sjcl.codec.base64.B,g=0,h;b&&(f=f.substr(0,62)+"-_");for(d=0;d<a.length;d++){h=f.indexOf(a.charAt(d));
|
|
if(0>h)throw new sjcl.exception.invalid("this isn't base64!");26<e?(e-=26,c.push(g^h>>>e),g=h<<32-e):(e+=6,g^=h<<32-e)}e&56&&c.push(sjcl.bitArray.partial(e&56,g,1));return c}};sjcl.codec.base64url={fromBits:function(a){return sjcl.codec.base64.fromBits(a,1,1)},toBits:function(a){return sjcl.codec.base64.toBits(a,1)}};sjcl.hash.sha256=function(a){this.b[0]||this.O();a?(this.F=a.F.slice(0),this.A=a.A.slice(0),this.l=a.l):this.reset()};sjcl.hash.sha256.hash=function(a){return(new sjcl.hash.sha256).update(a).finalize()};
|
|
sjcl.hash.sha256.prototype={blockSize:512,reset:function(){this.F=this.Y.slice(0);this.A=[];this.l=0;return this},update:function(a){"string"===typeof a&&(a=sjcl.codec.utf8String.toBits(a));var b,c=this.A=sjcl.bitArray.concat(this.A,a);b=this.l;a=this.l=b+sjcl.bitArray.bitLength(a);if(0x1fffffffffffff<a)throw new sjcl.exception.invalid("Cannot hash more than 2^53 - 1 bits");if("undefined"!==typeof Uint32Array){var d=new Uint32Array(c),e=0;for(b=512+b-(512+b&0x1ff);b<=a;b+=512)u(this,d.subarray(16*e,
|
|
16*(e+1))),e+=1;c.splice(0,16*e)}else for(b=512+b-(512+b&0x1ff);b<=a;b+=512)u(this,c.splice(0,16));return this},finalize:function(){var a,b=this.A,c=this.F,b=sjcl.bitArray.concat(b,[sjcl.bitArray.partial(1,1)]);for(a=b.length+2;a&15;a++)b.push(0);b.push(Math.floor(this.l/0x100000000));for(b.push(this.l|0);b.length;)u(this,b.splice(0,16));this.reset();return c},Y:[],b:[],O:function(){function a(a){return 0x100000000*(a-Math.floor(a))|0}for(var b=0,c=2,d,e;64>b;c++){e=!0;for(d=2;d*d<=c;d++)if(0===c%d){e=
|
|
!1;break}e&&(8>b&&(this.Y[b]=a(Math.pow(c,.5))),this.b[b]=a(Math.pow(c,1/3)),b++)}}};
|
|
function u(a,b){var c,d,e,f=a.F,g=a.b,h=f[0],k=f[1],l=f[2],n=f[3],m=f[4],p=f[5],r=f[6],q=f[7];for(c=0;64>c;c++)16>c?d=b[c]:(d=b[c+1&15],e=b[c+14&15],d=b[c&15]=(d>>>7^d>>>18^d>>>3^d<<25^d<<14)+(e>>>17^e>>>19^e>>>10^e<<15^e<<13)+b[c&15]+b[c+9&15]|0),d=d+q+(m>>>6^m>>>11^m>>>25^m<<26^m<<21^m<<7)+(r^m&(p^r))+g[c],q=r,r=p,p=m,m=n+d|0,n=l,l=k,k=h,h=d+(k&l^n&(k^l))+(k>>>2^k>>>13^k>>>22^k<<30^k<<19^k<<10)|0;f[0]=f[0]+h|0;f[1]=f[1]+k|0;f[2]=f[2]+l|0;f[3]=f[3]+n|0;f[4]=f[4]+m|0;f[5]=f[5]+p|0;f[6]=f[6]+r|0;f[7]=
|
|
f[7]+q|0}
|
|
sjcl.mode.ccm={name:"ccm",G:[],listenProgress:function(a){sjcl.mode.ccm.G.push(a)},unListenProgress:function(a){a=sjcl.mode.ccm.G.indexOf(a);-1<a&&sjcl.mode.ccm.G.splice(a,1)},fa:function(a){var b=sjcl.mode.ccm.G.slice(),c;for(c=0;c<b.length;c+=1)b[c](a)},encrypt:function(a,b,c,d,e){var f,g=b.slice(0),h=sjcl.bitArray,k=h.bitLength(c)/8,l=h.bitLength(g)/8;e=e||64;d=d||[];if(7>k)throw new sjcl.exception.invalid("ccm: iv must be at least 7 bytes");for(f=2;4>f&&l>>>8*f;f++);f<15-k&&(f=15-k);c=h.clamp(c,
|
|
8*(15-f));b=sjcl.mode.ccm.V(a,b,c,d,e,f);g=sjcl.mode.ccm.C(a,g,c,b,e,f);return h.concat(g.data,g.tag)},decrypt:function(a,b,c,d,e){e=e||64;d=d||[];var f=sjcl.bitArray,g=f.bitLength(c)/8,h=f.bitLength(b),k=f.clamp(b,h-e),l=f.bitSlice(b,h-e),h=(h-e)/8;if(7>g)throw new sjcl.exception.invalid("ccm: iv must be at least 7 bytes");for(b=2;4>b&&h>>>8*b;b++);b<15-g&&(b=15-g);c=f.clamp(c,8*(15-b));k=sjcl.mode.ccm.C(a,k,c,l,e,b);a=sjcl.mode.ccm.V(a,k.data,c,d,e,b);if(!f.equal(k.tag,a))throw new sjcl.exception.corrupt("ccm: tag doesn't match");
|
|
return k.data},na:function(a,b,c,d,e,f){var g=[],h=sjcl.bitArray,k=h.i;d=[h.partial(8,(b.length?64:0)|d-2<<2|f-1)];d=h.concat(d,c);d[3]|=e;d=a.encrypt(d);if(b.length)for(c=h.bitLength(b)/8,65279>=c?g=[h.partial(16,c)]:0xffffffff>=c&&(g=h.concat([h.partial(16,65534)],[c])),g=h.concat(g,b),b=0;b<g.length;b+=4)d=a.encrypt(k(d,g.slice(b,b+4).concat([0,0,0])));return d},V:function(a,b,c,d,e,f){var g=sjcl.bitArray,h=g.i;e/=8;if(e%2||4>e||16<e)throw new sjcl.exception.invalid("ccm: invalid tag length");
|
|
if(0xffffffff<d.length||0xffffffff<b.length)throw new sjcl.exception.bug("ccm: can't deal with 4GiB or more data");c=sjcl.mode.ccm.na(a,d,c,e,g.bitLength(b)/8,f);for(d=0;d<b.length;d+=4)c=a.encrypt(h(c,b.slice(d,d+4).concat([0,0,0])));return g.clamp(c,8*e)},C:function(a,b,c,d,e,f){var g,h=sjcl.bitArray;g=h.i;var k=b.length,l=h.bitLength(b),n=k/50,m=n;c=h.concat([h.partial(8,f-1)],c).concat([0,0,0]).slice(0,4);d=h.bitSlice(g(d,a.encrypt(c)),0,e);if(!k)return{tag:d,data:[]};for(g=0;g<k;g+=4)g>n&&(sjcl.mode.ccm.fa(g/
|
|
k),n+=m),c[3]++,e=a.encrypt(c),b[g]^=e[0],b[g+1]^=e[1],b[g+2]^=e[2],b[g+3]^=e[3];return{tag:d,data:h.clamp(b,l)}}};
|
|
sjcl.mode.ocb2={name:"ocb2",encrypt:function(a,b,c,d,e,f){if(128!==sjcl.bitArray.bitLength(c))throw new sjcl.exception.invalid("ocb iv must be 128 bits");var g,h=sjcl.mode.ocb2.S,k=sjcl.bitArray,l=k.i,n=[0,0,0,0];c=h(a.encrypt(c));var m,p=[];d=d||[];e=e||64;for(g=0;g+4<b.length;g+=4)m=b.slice(g,g+4),n=l(n,m),p=p.concat(l(c,a.encrypt(l(c,m)))),c=h(c);m=b.slice(g);b=k.bitLength(m);g=a.encrypt(l(c,[0,0,0,b]));m=k.clamp(l(m.concat([0,0,0]),g),b);n=l(n,l(m.concat([0,0,0]),g));n=a.encrypt(l(n,l(c,h(c))));
|
|
d.length&&(n=l(n,f?d:sjcl.mode.ocb2.pmac(a,d)));return p.concat(k.concat(m,k.clamp(n,e)))},decrypt:function(a,b,c,d,e,f){if(128!==sjcl.bitArray.bitLength(c))throw new sjcl.exception.invalid("ocb iv must be 128 bits");e=e||64;var g=sjcl.mode.ocb2.S,h=sjcl.bitArray,k=h.i,l=[0,0,0,0],n=g(a.encrypt(c)),m,p,r=sjcl.bitArray.bitLength(b)-e,q=[];d=d||[];for(c=0;c+4<r/32;c+=4)m=k(n,a.decrypt(k(n,b.slice(c,c+4)))),l=k(l,m),q=q.concat(m),n=g(n);p=r-32*c;m=a.encrypt(k(n,[0,0,0,p]));m=k(m,h.clamp(b.slice(c),p).concat([0,
|
|
0,0]));l=k(l,m);l=a.encrypt(k(l,k(n,g(n))));d.length&&(l=k(l,f?d:sjcl.mode.ocb2.pmac(a,d)));if(!h.equal(h.clamp(l,e),h.bitSlice(b,r)))throw new sjcl.exception.corrupt("ocb: tag doesn't match");return q.concat(h.clamp(m,p))},pmac:function(a,b){var c,d=sjcl.mode.ocb2.S,e=sjcl.bitArray,f=e.i,g=[0,0,0,0],h=a.encrypt([0,0,0,0]),h=f(h,d(d(h)));for(c=0;c+4<b.length;c+=4)h=d(h),g=f(g,a.encrypt(f(h,b.slice(c,c+4))));c=b.slice(c);128>e.bitLength(c)&&(h=f(h,d(h)),c=e.concat(c,[-2147483648,0,0,0]));g=f(g,c);
|
|
return a.encrypt(f(d(f(h,d(h))),g))},S:function(a){return[a[0]<<1^a[1]>>>31,a[1]<<1^a[2]>>>31,a[2]<<1^a[3]>>>31,a[3]<<1^135*(a[0]>>>31)]}};
|
|
sjcl.mode.gcm={name:"gcm",encrypt:function(a,b,c,d,e){var f=b.slice(0);b=sjcl.bitArray;d=d||[];a=sjcl.mode.gcm.C(!0,a,f,d,c,e||128);return b.concat(a.data,a.tag)},decrypt:function(a,b,c,d,e){var f=b.slice(0),g=sjcl.bitArray,h=g.bitLength(f);e=e||128;d=d||[];e<=h?(b=g.bitSlice(f,h-e),f=g.bitSlice(f,0,h-e)):(b=f,f=[]);a=sjcl.mode.gcm.C(!1,a,f,d,c,e);if(!g.equal(a.tag,b))throw new sjcl.exception.corrupt("gcm: tag doesn't match");return a.data},ka:function(a,b){var c,d,e,f,g,h=sjcl.bitArray.i;e=[0,0,
|
|
0,0];f=b.slice(0);for(c=0;128>c;c++){(d=0!==(a[Math.floor(c/32)]&1<<31-c%32))&&(e=h(e,f));g=0!==(f[3]&1);for(d=3;0<d;d--)f[d]=f[d]>>>1|(f[d-1]&1)<<31;f[0]>>>=1;g&&(f[0]^=-0x1f000000)}return e},j:function(a,b,c){var d,e=c.length;b=b.slice(0);for(d=0;d<e;d+=4)b[0]^=0xffffffff&c[d],b[1]^=0xffffffff&c[d+1],b[2]^=0xffffffff&c[d+2],b[3]^=0xffffffff&c[d+3],b=sjcl.mode.gcm.ka(b,a);return b},C:function(a,b,c,d,e,f){var g,h,k,l,n,m,p,r,q=sjcl.bitArray;m=c.length;p=q.bitLength(c);r=q.bitLength(d);h=q.bitLength(e);
|
|
g=b.encrypt([0,0,0,0]);96===h?(e=e.slice(0),e=q.concat(e,[1])):(e=sjcl.mode.gcm.j(g,[0,0,0,0],e),e=sjcl.mode.gcm.j(g,e,[0,0,Math.floor(h/0x100000000),h&0xffffffff]));h=sjcl.mode.gcm.j(g,[0,0,0,0],d);n=e.slice(0);d=h.slice(0);a||(d=sjcl.mode.gcm.j(g,h,c));for(l=0;l<m;l+=4)n[3]++,k=b.encrypt(n),c[l]^=k[0],c[l+1]^=k[1],c[l+2]^=k[2],c[l+3]^=k[3];c=q.clamp(c,p);a&&(d=sjcl.mode.gcm.j(g,h,c));a=[Math.floor(r/0x100000000),r&0xffffffff,Math.floor(p/0x100000000),p&0xffffffff];d=sjcl.mode.gcm.j(g,d,a);k=b.encrypt(e);
|
|
d[0]^=k[0];d[1]^=k[1];d[2]^=k[2];d[3]^=k[3];return{tag:q.bitSlice(d,0,f),data:c}}};sjcl.misc.hmac=function(a,b){this.W=b=b||sjcl.hash.sha256;var c=[[],[]],d,e=b.prototype.blockSize/32;this.w=[new b,new b];a.length>e&&(a=b.hash(a));for(d=0;d<e;d++)c[0][d]=a[d]^909522486,c[1][d]=a[d]^1549556828;this.w[0].update(c[0]);this.w[1].update(c[1]);this.R=new b(this.w[0])};
|
|
sjcl.misc.hmac.prototype.encrypt=sjcl.misc.hmac.prototype.mac=function(a){if(this.aa)throw new sjcl.exception.invalid("encrypt on already updated hmac called!");this.update(a);return this.digest(a)};sjcl.misc.hmac.prototype.reset=function(){this.R=new this.W(this.w[0]);this.aa=!1};sjcl.misc.hmac.prototype.update=function(a){this.aa=!0;this.R.update(a)};sjcl.misc.hmac.prototype.digest=function(){var a=this.R.finalize(),a=(new this.W(this.w[1])).update(a).finalize();this.reset();return a};
|
|
sjcl.misc.pbkdf2=function(a,b,c,d,e){c=c||1E4;if(0>d||0>c)throw new sjcl.exception.invalid("invalid params to pbkdf2");"string"===typeof a&&(a=sjcl.codec.utf8String.toBits(a));"string"===typeof b&&(b=sjcl.codec.utf8String.toBits(b));e=e||sjcl.misc.hmac;a=new e(a);var f,g,h,k,l=[],n=sjcl.bitArray;for(k=1;32*l.length<(d||1);k++){e=f=a.encrypt(n.concat(b,[k]));for(g=1;g<c;g++)for(f=a.encrypt(f),h=0;h<f.length;h++)e[h]^=f[h];l=l.concat(e)}d&&(l=n.clamp(l,d));return l};
|
|
sjcl.prng=function(a){this.c=[new sjcl.hash.sha256];this.m=[0];this.P=0;this.H={};this.N=0;this.U={};this.Z=this.f=this.o=this.ha=0;this.b=[0,0,0,0,0,0,0,0];this.h=[0,0,0,0];this.L=void 0;this.M=a;this.D=!1;this.K={progress:{},seeded:{}};this.u=this.ga=0;this.I=1;this.J=2;this.ca=0x10000;this.T=[0,48,64,96,128,192,0x100,384,512,768,1024];this.da=3E4;this.ba=80};
|
|
sjcl.prng.prototype={randomWords:function(a,b){var c=[],d;d=this.isReady(b);var e;if(d===this.u)throw new sjcl.exception.notReady("generator isn't seeded");if(d&this.J){d=!(d&this.I);e=[];var f=0,g;this.Z=e[0]=(new Date).valueOf()+this.da;for(g=0;16>g;g++)e.push(0x100000000*Math.random()|0);for(g=0;g<this.c.length&&(e=e.concat(this.c[g].finalize()),f+=this.m[g],this.m[g]=0,d||!(this.P&1<<g));g++);this.P>=1<<this.c.length&&(this.c.push(new sjcl.hash.sha256),this.m.push(0));this.f-=f;f>this.o&&(this.o=
|
|
f);this.P++;this.b=sjcl.hash.sha256.hash(this.b.concat(e));this.L=new sjcl.cipher.aes(this.b);for(d=0;4>d&&(this.h[d]=this.h[d]+1|0,!this.h[d]);d++);}for(d=0;d<a;d+=4)0===(d+1)%this.ca&&y(this),e=z(this),c.push(e[0],e[1],e[2],e[3]);y(this);return c.slice(0,a)},setDefaultParanoia:function(a,b){if(0===a&&"Setting paranoia=0 will ruin your security; use it only for testing"!==b)throw new sjcl.exception.invalid("Setting paranoia=0 will ruin your security; use it only for testing");this.M=a},addEntropy:function(a,
|
|
b,c){c=c||"user";var d,e,f=(new Date).valueOf(),g=this.H[c],h=this.isReady(),k=0;d=this.U[c];void 0===d&&(d=this.U[c]=this.ha++);void 0===g&&(g=this.H[c]=0);this.H[c]=(this.H[c]+1)%this.c.length;switch(typeof a){case "number":void 0===b&&(b=1);this.c[g].update([d,this.N++,1,b,f,1,a|0]);break;case "object":c=Object.prototype.toString.call(a);if("[object Uint32Array]"===c){e=[];for(c=0;c<a.length;c++)e.push(a[c]);a=e}else for("[object Array]"!==c&&(k=1),c=0;c<a.length&&!k;c++)"number"!==typeof a[c]&&
|
|
(k=1);if(!k){if(void 0===b)for(c=b=0;c<a.length;c++)for(e=a[c];0<e;)b++,e=e>>>1;this.c[g].update([d,this.N++,2,b,f,a.length].concat(a))}break;case "string":void 0===b&&(b=a.length);this.c[g].update([d,this.N++,3,b,f,a.length]);this.c[g].update(a);break;default:k=1}if(k)throw new sjcl.exception.bug("random: addEntropy only supports number, array of numbers or string");this.m[g]+=b;this.f+=b;h===this.u&&(this.isReady()!==this.u&&A("seeded",Math.max(this.o,this.f)),A("progress",this.getProgress()))},
|
|
isReady:function(a){a=this.T[void 0!==a?a:this.M];return this.o&&this.o>=a?this.m[0]>this.ba&&(new Date).valueOf()>this.Z?this.J|this.I:this.I:this.f>=a?this.J|this.u:this.u},getProgress:function(a){a=this.T[a?a:this.M];return this.o>=a?1:this.f>a?1:this.f/a},startCollectors:function(){if(!this.D){this.a={loadTimeCollector:B(this,this.ma),mouseCollector:B(this,this.oa),keyboardCollector:B(this,this.la),accelerometerCollector:B(this,this.ea),touchCollector:B(this,this.qa)};if(window.addEventListener)window.addEventListener("load",
|
|
this.a.loadTimeCollector,!1),window.addEventListener("mousemove",this.a.mouseCollector,!1),window.addEventListener("keypress",this.a.keyboardCollector,!1),window.addEventListener("devicemotion",this.a.accelerometerCollector,!1),window.addEventListener("touchmove",this.a.touchCollector,!1);else if(document.attachEvent)document.attachEvent("onload",this.a.loadTimeCollector),document.attachEvent("onmousemove",this.a.mouseCollector),document.attachEvent("keypress",this.a.keyboardCollector);else throw new sjcl.exception.bug("can't attach event");
|
|
this.D=!0}},stopCollectors:function(){this.D&&(window.removeEventListener?(window.removeEventListener("load",this.a.loadTimeCollector,!1),window.removeEventListener("mousemove",this.a.mouseCollector,!1),window.removeEventListener("keypress",this.a.keyboardCollector,!1),window.removeEventListener("devicemotion",this.a.accelerometerCollector,!1),window.removeEventListener("touchmove",this.a.touchCollector,!1)):document.detachEvent&&(document.detachEvent("onload",this.a.loadTimeCollector),document.detachEvent("onmousemove",
|
|
this.a.mouseCollector),document.detachEvent("keypress",this.a.keyboardCollector)),this.D=!1)},addEventListener:function(a,b){this.K[a][this.ga++]=b},removeEventListener:function(a,b){var c,d,e=this.K[a],f=[];for(d in e)e.hasOwnProperty(d)&&e[d]===b&&f.push(d);for(c=0;c<f.length;c++)d=f[c],delete e[d]},la:function(){C(this,1)},oa:function(a){var b,c;try{b=a.x||a.clientX||a.offsetX||0,c=a.y||a.clientY||a.offsetY||0}catch(d){c=b=0}0!=b&&0!=c&&this.addEntropy([b,c],2,"mouse");C(this,0)},qa:function(a){a=
|
|
a.touches[0]||a.changedTouches[0];this.addEntropy([a.pageX||a.clientX,a.pageY||a.clientY],1,"touch");C(this,0)},ma:function(){C(this,2)},ea:function(a){a=a.accelerationIncludingGravity.x||a.accelerationIncludingGravity.y||a.accelerationIncludingGravity.z;if(window.orientation){var b=window.orientation;"number"===typeof b&&this.addEntropy(b,1,"accelerometer")}a&&this.addEntropy(a,2,"accelerometer");C(this,0)}};
|
|
function A(a,b){var c,d=sjcl.random.K[a],e=[];for(c in d)d.hasOwnProperty(c)&&e.push(d[c]);for(c=0;c<e.length;c++)e[c](b)}function C(a,b){"undefined"!==typeof window&&window.performance&&"function"===typeof window.performance.now?a.addEntropy(window.performance.now(),b,"loadtime"):a.addEntropy((new Date).valueOf(),b,"loadtime")}function y(a){a.b=z(a).concat(z(a));a.L=new sjcl.cipher.aes(a.b)}function z(a){for(var b=0;4>b&&(a.h[b]=a.h[b]+1|0,!a.h[b]);b++);return a.L.encrypt(a.h)}
|
|
function B(a,b){return function(){b.apply(a,arguments)}}sjcl.random=new sjcl.prng(6);
|
|
a:try{var D,E,F,G;if(G="undefined"!==typeof module&&module.exports){var H;try{H=require("crypto")}catch(a){H=null}G=E=H}if(G&&E.randomBytes)D=E.randomBytes(128),D=new Uint32Array((new Uint8Array(D)).buffer),sjcl.random.addEntropy(D,1024,"crypto['randomBytes']");else if("undefined"!==typeof window&&"undefined"!==typeof Uint32Array){F=new Uint32Array(32);if(window.crypto&&window.crypto.getRandomValues)window.crypto.getRandomValues(F);else if(window.msCrypto&&window.msCrypto.getRandomValues)window.msCrypto.getRandomValues(F);
|
|
else break a;sjcl.random.addEntropy(F,1024,"crypto['getRandomValues']")}}catch(a){"undefined"!==typeof window&&window.console&&(console.log("There was an error collecting entropy from the browser:"),console.log(a))}
|
|
sjcl.json={defaults:{v:1,iter:1E4,ks:128,ts:64,mode:"ccm",adata:"",cipher:"aes"},ja:function(a,b,c,d){c=c||{};d=d||{};var e=sjcl.json,f=e.g({iv:sjcl.random.randomWords(4,0)},e.defaults),g;e.g(f,c);c=f.adata;"string"===typeof f.salt&&(f.salt=sjcl.codec.base64.toBits(f.salt));"string"===typeof f.iv&&(f.iv=sjcl.codec.base64.toBits(f.iv));if(!sjcl.mode[f.mode]||!sjcl.cipher[f.cipher]||"string"===typeof a&&100>=f.iter||64!==f.ts&&96!==f.ts&&128!==f.ts||128!==f.ks&&192!==f.ks&&0x100!==f.ks||2>f.iv.length||
|
|
4<f.iv.length)throw new sjcl.exception.invalid("json encrypt: invalid parameters");"string"===typeof a?(g=sjcl.misc.cachedPbkdf2(a,f),a=g.key.slice(0,f.ks/32),f.salt=g.salt):sjcl.ecc&&a instanceof sjcl.ecc.elGamal.publicKey&&(g=a.kem(),f.kemtag=g.tag,a=g.key.slice(0,f.ks/32));"string"===typeof b&&(b=sjcl.codec.utf8String.toBits(b));"string"===typeof c&&(f.adata=c=sjcl.codec.utf8String.toBits(c));g=new sjcl.cipher[f.cipher](a);e.g(d,f);d.key=a;f.ct="ccm"===f.mode&&sjcl.arrayBuffer&&sjcl.arrayBuffer.ccm&&
|
|
b instanceof ArrayBuffer?sjcl.arrayBuffer.ccm.encrypt(g,b,f.iv,c,f.ts):sjcl.mode[f.mode].encrypt(g,b,f.iv,c,f.ts);return f},encrypt:function(a,b,c,d){var e=sjcl.json,f=e.ja.apply(e,arguments);return e.encode(f)},ia:function(a,b,c,d){c=c||{};d=d||{};var e=sjcl.json;b=e.g(e.g(e.g({},e.defaults),b),c,!0);var f,g;f=b.adata;"string"===typeof b.salt&&(b.salt=sjcl.codec.base64.toBits(b.salt));"string"===typeof b.iv&&(b.iv=sjcl.codec.base64.toBits(b.iv));if(!sjcl.mode[b.mode]||!sjcl.cipher[b.cipher]||"string"===
|
|
typeof a&&100>=b.iter||64!==b.ts&&96!==b.ts&&128!==b.ts||128!==b.ks&&192!==b.ks&&0x100!==b.ks||!b.iv||2>b.iv.length||4<b.iv.length)throw new sjcl.exception.invalid("json decrypt: invalid parameters");"string"===typeof a?(g=sjcl.misc.cachedPbkdf2(a,b),a=g.key.slice(0,b.ks/32),b.salt=g.salt):sjcl.ecc&&a instanceof sjcl.ecc.elGamal.secretKey&&(a=a.unkem(sjcl.codec.base64.toBits(b.kemtag)).slice(0,b.ks/32));"string"===typeof f&&(f=sjcl.codec.utf8String.toBits(f));g=new sjcl.cipher[b.cipher](a);f="ccm"===
|
|
b.mode&&sjcl.arrayBuffer&&sjcl.arrayBuffer.ccm&&b.ct instanceof ArrayBuffer?sjcl.arrayBuffer.ccm.decrypt(g,b.ct,b.iv,b.tag,f,b.ts):sjcl.mode[b.mode].decrypt(g,b.ct,b.iv,f,b.ts);e.g(d,b);d.key=a;return 1===c.raw?f:sjcl.codec.utf8String.fromBits(f)},decrypt:function(a,b,c,d){var e=sjcl.json;return e.ia(a,e.decode(b),c,d)},encode:function(a){var b,c="{",d="";for(b in a)if(a.hasOwnProperty(b)){if(!b.match(/^[a-z0-9]+$/i))throw new sjcl.exception.invalid("json encode: invalid property name");c+=d+'"'+
|
|
b+'":';d=",";switch(typeof a[b]){case "number":case "boolean":c+=a[b];break;case "string":c+='"'+escape(a[b])+'"';break;case "object":c+='"'+sjcl.codec.base64.fromBits(a[b],0)+'"';break;default:throw new sjcl.exception.bug("json encode: unsupported type");}}return c+"}"},decode:function(a){a=a.replace(/\s/g,"");if(!a.match(/^\{.*\}$/))throw new sjcl.exception.invalid("json decode: this isn't json!");a=a.replace(/^\{|\}$/g,"").split(/,/);var b={},c,d;for(c=0;c<a.length;c++){if(!(d=a[c].match(/^\s*(?:(["']?)([a-z][a-z0-9]*)\1)\s*:\s*(?:(-?\d+)|"([a-z0-9+\/%*_.@=\-]*)"|(true|false))$/i)))throw new sjcl.exception.invalid("json decode: this isn't json!");
|
|
null!=d[3]?b[d[2]]=parseInt(d[3],10):null!=d[4]?b[d[2]]=d[2].match(/^(ct|adata|salt|iv)$/)?sjcl.codec.base64.toBits(d[4]):unescape(d[4]):null!=d[5]&&(b[d[2]]="true"===d[5])}return b},g:function(a,b,c){void 0===a&&(a={});if(void 0===b)return a;for(var d in b)if(b.hasOwnProperty(d)){if(c&&void 0!==a[d]&&a[d]!==b[d])throw new sjcl.exception.invalid("required parameter overridden");a[d]=b[d]}return a},sa:function(a,b){var c={},d;for(d in a)a.hasOwnProperty(d)&&a[d]!==b[d]&&(c[d]=a[d]);return c},ra:function(a,
|
|
b){var c={},d;for(d=0;d<b.length;d++)void 0!==a[b[d]]&&(c[b[d]]=a[b[d]]);return c}};sjcl.encrypt=sjcl.json.encrypt;sjcl.decrypt=sjcl.json.decrypt;sjcl.misc.pa={};sjcl.misc.cachedPbkdf2=function(a,b){var c=sjcl.misc.pa,d;b=b||{};d=b.iter||1E3;c=c[a]=c[a]||{};d=c[d]=c[d]||{firstSalt:b.salt&&b.salt.length?b.salt.slice(0):sjcl.random.randomWords(2,0)};c=void 0===b.salt?d.firstSalt:b.salt;d[c]=d[c]||sjcl.misc.pbkdf2(a,c,b.iter);return{key:d[c].slice(0),salt:c.slice(0)}};
|
|
"undefined"!==typeof module&&module.exports&&(module.exports=sjcl);"function"===typeof define&&define([],function(){return sjcl});
|
|
|
|
},{"crypto":56}],154:[function(require,module,exports){
|
|
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
module.exports = Stream;
|
|
|
|
var EE = require('events').EventEmitter;
|
|
var inherits = require('inherits');
|
|
|
|
inherits(Stream, EE);
|
|
Stream.Readable = require('readable-stream/readable.js');
|
|
Stream.Writable = require('readable-stream/writable.js');
|
|
Stream.Duplex = require('readable-stream/duplex.js');
|
|
Stream.Transform = require('readable-stream/transform.js');
|
|
Stream.PassThrough = require('readable-stream/passthrough.js');
|
|
|
|
// Backwards-compat with node 0.4.x
|
|
Stream.Stream = Stream;
|
|
|
|
|
|
|
|
// old-style streams. Note that the pipe method (the only relevant
|
|
// part of this class) is overridden in the Readable class.
|
|
|
|
function Stream() {
|
|
EE.call(this);
|
|
}
|
|
|
|
Stream.prototype.pipe = function(dest, options) {
|
|
var source = this;
|
|
|
|
function ondata(chunk) {
|
|
if (dest.writable) {
|
|
if (false === dest.write(chunk) && source.pause) {
|
|
source.pause();
|
|
}
|
|
}
|
|
}
|
|
|
|
source.on('data', ondata);
|
|
|
|
function ondrain() {
|
|
if (source.readable && source.resume) {
|
|
source.resume();
|
|
}
|
|
}
|
|
|
|
dest.on('drain', ondrain);
|
|
|
|
// If the 'end' option is not supplied, dest.end() will be called when
|
|
// source gets the 'end' or 'close' events. Only dest.end() once.
|
|
if (!dest._isStdio && (!options || options.end !== false)) {
|
|
source.on('end', onend);
|
|
source.on('close', onclose);
|
|
}
|
|
|
|
var didOnEnd = false;
|
|
function onend() {
|
|
if (didOnEnd) return;
|
|
didOnEnd = true;
|
|
|
|
dest.end();
|
|
}
|
|
|
|
|
|
function onclose() {
|
|
if (didOnEnd) return;
|
|
didOnEnd = true;
|
|
|
|
if (typeof dest.destroy === 'function') dest.destroy();
|
|
}
|
|
|
|
// don't leave dangling pipes when there are errors.
|
|
function onerror(er) {
|
|
cleanup();
|
|
if (EE.listenerCount(this, 'error') === 0) {
|
|
throw er; // Unhandled stream error in pipe.
|
|
}
|
|
}
|
|
|
|
source.on('error', onerror);
|
|
dest.on('error', onerror);
|
|
|
|
// remove all the event listeners that were added.
|
|
function cleanup() {
|
|
source.removeListener('data', ondata);
|
|
dest.removeListener('drain', ondrain);
|
|
|
|
source.removeListener('end', onend);
|
|
source.removeListener('close', onclose);
|
|
|
|
source.removeListener('error', onerror);
|
|
dest.removeListener('error', onerror);
|
|
|
|
source.removeListener('end', cleanup);
|
|
source.removeListener('close', cleanup);
|
|
|
|
dest.removeListener('close', cleanup);
|
|
}
|
|
|
|
source.on('end', cleanup);
|
|
source.on('close', cleanup);
|
|
|
|
dest.on('close', cleanup);
|
|
|
|
dest.emit('pipe', source);
|
|
|
|
// Allow for unix-like usage: A.pipe(B).pipe(C)
|
|
return dest;
|
|
};
|
|
|
|
},{"events":83,"inherits":100,"readable-stream/duplex.js":127,"readable-stream/passthrough.js":139,"readable-stream/readable.js":140,"readable-stream/transform.js":141,"readable-stream/writable.js":142}],155:[function(require,module,exports){
|
|
(function (setImmediate,clearImmediate){
|
|
var nextTick = require('process/browser.js').nextTick;
|
|
var apply = Function.prototype.apply;
|
|
var slice = Array.prototype.slice;
|
|
var immediateIds = {};
|
|
var nextImmediateId = 0;
|
|
|
|
// DOM APIs, for completeness
|
|
|
|
exports.setTimeout = function() {
|
|
return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
|
|
};
|
|
exports.setInterval = function() {
|
|
return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
|
|
};
|
|
exports.clearTimeout =
|
|
exports.clearInterval = function(timeout) { timeout.close(); };
|
|
|
|
function Timeout(id, clearFn) {
|
|
this._id = id;
|
|
this._clearFn = clearFn;
|
|
}
|
|
Timeout.prototype.unref = Timeout.prototype.ref = function() {};
|
|
Timeout.prototype.close = function() {
|
|
this._clearFn.call(window, this._id);
|
|
};
|
|
|
|
// Does not start the time, just sets up the members needed.
|
|
exports.enroll = function(item, msecs) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
item._idleTimeout = msecs;
|
|
};
|
|
|
|
exports.unenroll = function(item) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
item._idleTimeout = -1;
|
|
};
|
|
|
|
exports._unrefActive = exports.active = function(item) {
|
|
clearTimeout(item._idleTimeoutId);
|
|
|
|
var msecs = item._idleTimeout;
|
|
if (msecs >= 0) {
|
|
item._idleTimeoutId = setTimeout(function onTimeout() {
|
|
if (item._onTimeout)
|
|
item._onTimeout();
|
|
}, msecs);
|
|
}
|
|
};
|
|
|
|
// That's not how node.js implements it but the exposed api is the same.
|
|
exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
|
|
var id = nextImmediateId++;
|
|
var args = arguments.length < 2 ? false : slice.call(arguments, 1);
|
|
|
|
immediateIds[id] = true;
|
|
|
|
nextTick(function onNextTick() {
|
|
if (immediateIds[id]) {
|
|
// fn.call() is faster so we optimize for the common use-case
|
|
// @see http://jsperf.com/call-apply-segu
|
|
if (args) {
|
|
fn.apply(null, args);
|
|
} else {
|
|
fn.call(null);
|
|
}
|
|
// Prevent ids from leaking
|
|
exports.clearImmediate(id);
|
|
}
|
|
});
|
|
|
|
return id;
|
|
};
|
|
|
|
exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
|
|
delete immediateIds[id];
|
|
};
|
|
}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
|
|
|
|
},{"process/browser.js":117,"timers":155}],156:[function(require,module,exports){
|
|
(function (global){
|
|
|
|
/**
|
|
* Module exports.
|
|
*/
|
|
|
|
module.exports = deprecate;
|
|
|
|
/**
|
|
* Mark that a method should not be used.
|
|
* Returns a modified function which warns once by default.
|
|
*
|
|
* If `localStorage.noDeprecation = true` is set, then it is a no-op.
|
|
*
|
|
* If `localStorage.throwDeprecation = true` is set, then deprecated functions
|
|
* will throw an Error when invoked.
|
|
*
|
|
* If `localStorage.traceDeprecation = true` is set, then deprecated functions
|
|
* will invoke `console.trace()` instead of `console.error()`.
|
|
*
|
|
* @param {Function} fn - the function to deprecate
|
|
* @param {String} msg - the string to print to the console when `fn` is invoked
|
|
* @returns {Function} a new "deprecated" version of `fn`
|
|
* @api public
|
|
*/
|
|
|
|
function deprecate (fn, msg) {
|
|
if (config('noDeprecation')) {
|
|
return fn;
|
|
}
|
|
|
|
var warned = false;
|
|
function deprecated() {
|
|
if (!warned) {
|
|
if (config('throwDeprecation')) {
|
|
throw new Error(msg);
|
|
} else if (config('traceDeprecation')) {
|
|
console.trace(msg);
|
|
} else {
|
|
console.warn(msg);
|
|
}
|
|
warned = true;
|
|
}
|
|
return fn.apply(this, arguments);
|
|
}
|
|
|
|
return deprecated;
|
|
}
|
|
|
|
/**
|
|
* Checks `localStorage` for boolean values for the given `name`.
|
|
*
|
|
* @param {String} name
|
|
* @returns {Boolean}
|
|
* @api private
|
|
*/
|
|
|
|
function config (name) {
|
|
// accessing global.localStorage can trigger a DOMException in sandboxed iframes
|
|
try {
|
|
if (!global.localStorage) return false;
|
|
} catch (_) {
|
|
return false;
|
|
}
|
|
var val = global.localStorage[name];
|
|
if (null == val) return false;
|
|
return String(val).toLowerCase() === 'true';
|
|
}
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{}],157:[function(require,module,exports){
|
|
var indexOf = function (xs, item) {
|
|
if (xs.indexOf) return xs.indexOf(item);
|
|
else for (var i = 0; i < xs.length; i++) {
|
|
if (xs[i] === item) return i;
|
|
}
|
|
return -1;
|
|
};
|
|
var Object_keys = function (obj) {
|
|
if (Object.keys) return Object.keys(obj)
|
|
else {
|
|
var res = [];
|
|
for (var key in obj) res.push(key)
|
|
return res;
|
|
}
|
|
};
|
|
|
|
var forEach = function (xs, fn) {
|
|
if (xs.forEach) return xs.forEach(fn)
|
|
else for (var i = 0; i < xs.length; i++) {
|
|
fn(xs[i], i, xs);
|
|
}
|
|
};
|
|
|
|
var defineProp = (function() {
|
|
try {
|
|
Object.defineProperty({}, '_', {});
|
|
return function(obj, name, value) {
|
|
Object.defineProperty(obj, name, {
|
|
writable: true,
|
|
enumerable: false,
|
|
configurable: true,
|
|
value: value
|
|
})
|
|
};
|
|
} catch(e) {
|
|
return function(obj, name, value) {
|
|
obj[name] = value;
|
|
};
|
|
}
|
|
}());
|
|
|
|
var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function',
|
|
'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError',
|
|
'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError',
|
|
'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape',
|
|
'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape'];
|
|
|
|
function Context() {}
|
|
Context.prototype = {};
|
|
|
|
var Script = exports.Script = function NodeScript (code) {
|
|
if (!(this instanceof Script)) return new Script(code);
|
|
this.code = code;
|
|
};
|
|
|
|
Script.prototype.runInContext = function (context) {
|
|
if (!(context instanceof Context)) {
|
|
throw new TypeError("needs a 'context' argument.");
|
|
}
|
|
|
|
var iframe = document.createElement('iframe');
|
|
if (!iframe.style) iframe.style = {};
|
|
iframe.style.display = 'none';
|
|
|
|
document.body.appendChild(iframe);
|
|
|
|
var win = iframe.contentWindow;
|
|
var wEval = win.eval, wExecScript = win.execScript;
|
|
|
|
if (!wEval && wExecScript) {
|
|
// win.eval() magically appears when this is called in IE:
|
|
wExecScript.call(win, 'null');
|
|
wEval = win.eval;
|
|
}
|
|
|
|
forEach(Object_keys(context), function (key) {
|
|
win[key] = context[key];
|
|
});
|
|
forEach(globals, function (key) {
|
|
if (context[key]) {
|
|
win[key] = context[key];
|
|
}
|
|
});
|
|
|
|
var winKeys = Object_keys(win);
|
|
|
|
var res = wEval.call(win, this.code);
|
|
|
|
forEach(Object_keys(win), function (key) {
|
|
// Avoid copying circular objects like `top` and `window` by only
|
|
// updating existing context properties or new properties in the `win`
|
|
// that was only introduced after the eval.
|
|
if (key in context || indexOf(winKeys, key) === -1) {
|
|
context[key] = win[key];
|
|
}
|
|
});
|
|
|
|
forEach(globals, function (key) {
|
|
if (!(key in context)) {
|
|
defineProp(context, key, win[key]);
|
|
}
|
|
});
|
|
|
|
document.body.removeChild(iframe);
|
|
|
|
return res;
|
|
};
|
|
|
|
Script.prototype.runInThisContext = function () {
|
|
return eval(this.code); // maybe...
|
|
};
|
|
|
|
Script.prototype.runInNewContext = function (context) {
|
|
var ctx = Script.createContext(context);
|
|
var res = this.runInContext(ctx);
|
|
|
|
if (context) {
|
|
forEach(Object_keys(ctx), function (key) {
|
|
context[key] = ctx[key];
|
|
});
|
|
}
|
|
|
|
return res;
|
|
};
|
|
|
|
forEach(Object_keys(Script.prototype), function (name) {
|
|
exports[name] = Script[name] = function (code) {
|
|
var s = Script(code);
|
|
return s[name].apply(s, [].slice.call(arguments, 1));
|
|
};
|
|
});
|
|
|
|
exports.isContext = function (context) {
|
|
return context instanceof Context;
|
|
};
|
|
|
|
exports.createScript = function (code) {
|
|
return exports.Script(code);
|
|
};
|
|
|
|
exports.createContext = Script.createContext = function (context) {
|
|
var copy = new Context();
|
|
if(typeof context === 'object') {
|
|
forEach(Object_keys(context), function (key) {
|
|
copy[key] = context[key];
|
|
});
|
|
}
|
|
return copy;
|
|
};
|
|
|
|
},{}],158:[function(require,module,exports){
|
|
(function (global){
|
|
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const ChangePassphrase_1 = require("./pages/user/ChangePassphrase");
|
|
const EncryptionServiceFactory_1 = require("../common/service/EncryptionServiceFactory");
|
|
const loglevel_1 = __importDefault((typeof window !== "undefined" ? window['log'] : typeof global !== "undefined" ? global['log'] : null));
|
|
loglevel_1.default.setLevel("TRACE");
|
|
const es = EncryptionServiceFactory_1.EncryptionServiceFactory.getEncryptionService();
|
|
$("#changePassphraseForm").on("submit", (event) => {
|
|
event.preventDefault();
|
|
ChangePassphrase_1.changePassphrase(es);
|
|
});
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"../common/service/EncryptionServiceFactory":163,"./pages/user/ChangePassphrase":159}],159:[function(require,module,exports){
|
|
(function (global){
|
|
"use strict";
|
|
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
|
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
|
|
return new (P || (P = Promise))(function (resolve, reject) {
|
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
|
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
|
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
|
});
|
|
};
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const Routes_1 = require("../../../common/routes/Routes");
|
|
const Credentials_1 = require("../../../common/global/Credentials");
|
|
const loglevel_1 = __importDefault((typeof window !== "undefined" ? window['log'] : typeof global !== "undefined" ? global['log'] : null));
|
|
function changePassphrase(es) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
// $("#changePassphraseForm").val();
|
|
const user = document.getElementById("changePassphraseDropDown")
|
|
.value || "error";
|
|
const passphraseOld = $("#passphraseOld").val();
|
|
const passphraseNew = $("#passphraseNew").val();
|
|
loglevel_1.default.debug(Credentials_1.Credentials.authToken);
|
|
const messages = yield getAllMessages(user, Credentials_1.Credentials.authToken);
|
|
const decrypted = Promise.all(messages.map((m) => __awaiter(this, void 0, void 0, function* () {
|
|
const msg = yield es.decryptAsPromise(passphraseOld, m.messageCipher);
|
|
const m2 = Object.assign(Object.assign({}, m), { messageId: m.messageCipher.id, message: msg });
|
|
return m2;
|
|
})));
|
|
const reencrypted = (yield decrypted).map((m) => {
|
|
const mdto = es.encrypt(passphraseNew, m.message);
|
|
const mc = Object.assign({ id: m.messageId }, mdto);
|
|
const rdto = Object.assign(Object.assign({}, m), { messageCipher: mc });
|
|
return rdto;
|
|
});
|
|
loglevel_1.default.debug(reencrypted);
|
|
const decryptedAgain = Promise.all(reencrypted.map((m) => __awaiter(this, void 0, void 0, function* () {
|
|
return es.decryptAsPromise(passphraseNew, m.messageCipher);
|
|
})));
|
|
const deb = yield decryptedAgain;
|
|
loglevel_1.default.debug(deb);
|
|
sendReencryptedMessages(reencrypted, Credentials_1.Credentials.authToken);
|
|
});
|
|
}
|
|
exports.changePassphrase = changePassphrase;
|
|
function getAllMessages(user, authToken) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
let headers = new Headers();
|
|
// headers.append('Accept','application/json')
|
|
// headers.append('Content-Type', 'application/json');
|
|
headers.append("X-AUTH-TOKEN", authToken);
|
|
let response = yield fetch(`${Routes_1.Routes.Admin.getAllMessagesURL}${user}`, {
|
|
method: "GET",
|
|
headers: headers,
|
|
});
|
|
return response.json();
|
|
});
|
|
}
|
|
function getAllRegularUsers(authToken) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
let headers = new Headers();
|
|
// headers.append('Accept','application/json')
|
|
// headers.append('Content-Type', 'application/json');
|
|
headers.append("X-AUTH-TOKEN", authToken);
|
|
let response = yield fetch(`${Routes_1.Routes.Admin.getAllRegularUsersURL}`, {
|
|
method: "GET",
|
|
headers: headers,
|
|
});
|
|
let data = (yield response.json());
|
|
return data;
|
|
});
|
|
}
|
|
function sendReencryptedMessages(rrencryptionDTOs, authToken) {
|
|
let headers = new Headers();
|
|
// console.log("Token = " + btoa("hmm" + ":" + "hmm"))
|
|
// headers.append('Accept','application/json')
|
|
headers.append("Content-Type", "application/json");
|
|
headers.append("X-AUTH-TOKEN", authToken);
|
|
fetch(Routes_1.Routes.Admin.reencryptURL, {
|
|
method: "POST",
|
|
headers: headers,
|
|
body: JSON.stringify(rrencryptionDTOs),
|
|
}).then((response) => console.log(response));
|
|
}
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
|
|
},{"../../../common/global/Credentials":160,"../../../common/routes/Routes":162}],160:[function(require,module,exports){
|
|
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var Credentials;
|
|
(function (Credentials) {
|
|
Credentials.principleName = localStorage.getItem("username") || "";
|
|
Credentials.authToken = localStorage.getItem("authToken") || "";
|
|
})(Credentials = exports.Credentials || (exports.Credentials = {}));
|
|
|
|
},{}],161:[function(require,module,exports){
|
|
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var Admin;
|
|
(function (Admin) {
|
|
Admin.getAllMessagesURL = `/api/admin/get/messages/`; //hostAddress set in thymeleaf backend
|
|
Admin.reencryptURL = `/api/admin/post/re-encrypt`;
|
|
Admin.getAllRegularUsersURL = `/api/admin/get/users`;
|
|
})(Admin = exports.Admin || (exports.Admin = {}));
|
|
|
|
},{}],162:[function(require,module,exports){
|
|
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const Admin_1 = require("./Admin");
|
|
var Routes;
|
|
(function (Routes) {
|
|
Routes.Admin = Admin_1.Admin;
|
|
})(Routes = exports.Routes || (exports.Routes = {}));
|
|
|
|
},{"./Admin":161}],163:[function(require,module,exports){
|
|
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const SJCLEncryptionService_1 = require("./SJCLEncryptionService");
|
|
// import PromiseWorker = require('promise-worker');
|
|
const promise_worker_1 = __importDefault(require("promise-worker"));
|
|
class EncryptionServiceFactory {
|
|
static getEncryptionService() {
|
|
return new SJCLEncryptionService_1.SJCLEncryptionService(this._promiseWorker);
|
|
}
|
|
}
|
|
exports.EncryptionServiceFactory = EncryptionServiceFactory;
|
|
EncryptionServiceFactory._worker = new Worker('/js/worker.js');
|
|
EncryptionServiceFactory._promiseWorker = new promise_worker_1.default(EncryptionServiceFactory._worker);
|
|
|
|
},{"./SJCLEncryptionService":164,"promise-worker":118}],164:[function(require,module,exports){
|
|
"use strict";
|
|
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
|
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
|
|
return new (P || (P = Promise))(function (resolve, reject) {
|
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
|
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
|
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
|
});
|
|
};
|
|
var __importStar = (this && this.__importStar) || function (mod) {
|
|
if (mod && mod.__esModule) return mod;
|
|
var result = {};
|
|
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
|
|
result["default"] = mod;
|
|
return result;
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const sjcl = __importStar(require("sjcl"));
|
|
class SJCLEncryptionService {
|
|
constructor(promiseWorker) {
|
|
this._params = {
|
|
mode: "gcm",
|
|
ts: 128,
|
|
adata: "",
|
|
iter: 10000,
|
|
};
|
|
this._promiseWorker = promiseWorker;
|
|
}
|
|
encrypt(passphrase, plainText) {
|
|
const fn = () => {
|
|
// @ts-ignore
|
|
const cipher = sjcl.encrypt(passphrase, plainText, this._params);
|
|
return cipher;
|
|
};
|
|
return JSON.parse(fn());
|
|
}
|
|
decrypt(passphrase, cipher) {
|
|
return sjcl.decrypt(passphrase, JSON.stringify(cipher));
|
|
}
|
|
decryptAsPromise(passphrase, cipher) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
const decrypted = yield this._promiseWorker.postMessage({ passphrase: passphrase, cipher: cipher });
|
|
return decrypted;
|
|
});
|
|
}
|
|
}
|
|
exports.SJCLEncryptionService = SJCLEncryptionService;
|
|
|
|
},{"sjcl":153}]},{},[158])
|
|
//# 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r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c=\"function\"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error(\"Cannot find module '\"+i+\"'\");throw a.code=\"MODULE_NOT_FOUND\",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u=\"function\"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()","var asn1 = exports;\n\nasn1.bignum = require('bn.js');\n\nasn1.define = require('./asn1/api').define;\nasn1.base = require('./asn1/base');\nasn1.constants = require('./asn1/constants');\nasn1.decoders = require('./asn1/decoders');\nasn1.encoders = require('./asn1/encoders');\n","var asn1 = require('../asn1');\nvar inherits = require('inherits');\n\nvar api = exports;\n\napi.define = function define(name, body) {\n  return new Entity(name, body);\n};\n\nfunction Entity(name, body) {\n  this.name = name;\n  this.body = body;\n\n  this.decoders = {};\n  this.encoders = {};\n};\n\nEntity.prototype._createNamed = function createNamed(base) {\n  var named;\n  try {\n    named = require('vm').runInThisContext(\n      '(function ' + this.name + '(entity) {\\n' +\n      '  this._initNamed(entity);\\n' +\n      '})'\n    );\n  } catch (e) {\n    named = function (entity) {\n      this._initNamed(entity);\n    };\n  }\n  inherits(named, base);\n  named.prototype._initNamed = function initnamed(entity) {\n    base.call(this, entity);\n  };\n\n  return new named(this);\n};\n\nEntity.prototype._getDecoder = function _getDecoder(enc) {\n  enc = enc || 'der';\n  // Lazily create decoder\n  if (!this.decoders.hasOwnProperty(enc))\n    this.decoders[enc] = this._createNamed(asn1.decoders[enc]);\n  return this.decoders[enc];\n};\n\nEntity.prototype.decode = function decode(data, enc, options) {\n  return this._getDecoder(enc).decode(data, options);\n};\n\nEntity.prototype._getEncoder = function _getEncoder(enc) {\n  enc = enc || 'der';\n  // Lazily create encoder\n  if (!this.encoders.hasOwnProperty(enc))\n    this.encoders[enc] = this._createNamed(asn1.encoders[enc]);\n  return this.encoders[enc];\n};\n\nEntity.prototype.encode = function encode(data, enc, /* internal */ reporter) {\n  return this._getEncoder(enc).encode(data, reporter);\n};\n","var inherits = require('inherits');\nvar Reporter = require('../base').Reporter;\nvar Buffer = require('buffer').Buffer;\n\nfunction DecoderBuffer(base, options) {\n  Reporter.call(this, options);\n  if (!Buffer.isBuffer(base)) {\n    this.error('Input not Buffer');\n    return;\n  }\n\n  this.base = base;\n  this.offset = 0;\n  this.length = base.length;\n}\ninherits(DecoderBuffer, Reporter);\nexports.DecoderBuffer = DecoderBuffer;\n\nDecoderBuffer.prototype.save = function save() {\n  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };\n};\n\nDecoderBuffer.prototype.restore = function restore(save) {\n  // Return skipped data\n  var res = new DecoderBuffer(this.base);\n  res.offset = save.offset;\n  res.length = this.offset;\n\n  this.offset = save.offset;\n  Reporter.prototype.restore.call(this, save.reporter);\n\n  return res;\n};\n\nDecoderBuffer.prototype.isEmpty = function isEmpty() {\n  return this.offset === this.length;\n};\n\nDecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {\n  if (this.offset + 1 <= this.length)\n    return this.base.readUInt8(this.offset++, true);\n  else\n    return this.error(fail || 'DecoderBuffer overrun');\n}\n\nDecoderBuffer.prototype.skip = function skip(bytes, fail) {\n  if (!(this.offset + bytes <= this.length))\n    return this.error(fail || 'DecoderBuffer overrun');\n\n  var res = new DecoderBuffer(this.base);\n\n  // Share reporter state\n  res._reporterState = this._reporterState;\n\n  res.offset = this.offset;\n  res.length = this.offset + bytes;\n  this.offset += bytes;\n  return res;\n}\n\nDecoderBuffer.prototype.raw = function raw(save) {\n  return this.base.slice(save ? save.offset : this.offset, this.length);\n}\n\nfunction EncoderBuffer(value, reporter) {\n  if (Array.isArray(value)) {\n    this.length = 0;\n    this.value = value.map(function(item) {\n      if (!(item instanceof EncoderBuffer))\n        item = new EncoderBuffer(item, reporter);\n      this.length += item.length;\n      return item;\n    }, this);\n  } else if (typeof value === 'number') {\n    if (!(0 <= value && value <= 0xff))\n      return reporter.error('non-byte EncoderBuffer value');\n    this.value = value;\n    this.length = 1;\n  } else if (typeof value === 'string') {\n    this.value = value;\n    this.length = Buffer.byteLength(value);\n  } else if (Buffer.isBuffer(value)) {\n    this.value = value;\n    this.length = value.length;\n  } else {\n    return reporter.error('Unsupported type: ' + typeof value);\n  }\n}\nexports.EncoderBuffer = EncoderBuffer;\n\nEncoderBuffer.prototype.join = function join(out, offset) {\n  if (!out)\n    out = new Buffer(this.length);\n  if (!offset)\n    offset = 0;\n\n  if (this.length === 0)\n    return out;\n\n  if (Array.isArray(this.value)) {\n    this.value.forEach(function(item) {\n      item.join(out, offset);\n      offset += item.length;\n    });\n  } else {\n    if (typeof this.value === 'number')\n      out[offset] = this.value;\n    else if (typeof this.value === 'string')\n      out.write(this.value, offset);\n    else if (Buffer.isBuffer(this.value))\n      this.value.copy(out, offset);\n    offset += this.length;\n  }\n\n  return out;\n};\n","var base = exports;\n\nbase.Reporter = require('./reporter').Reporter;\nbase.DecoderBuffer = require('./buffer').DecoderBuffer;\nbase.EncoderBuffer = require('./buffer').EncoderBuffer;\nbase.Node = require('./node');\n","var Reporter = require('../base').Reporter;\nvar EncoderBuffer = require('../base').EncoderBuffer;\nvar DecoderBuffer = require('../base').DecoderBuffer;\nvar assert = require('minimalistic-assert');\n\n// Supported tags\nvar tags = [\n  'seq', 'seqof', 'set', 'setof', 'objid', 'bool',\n  'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',\n  'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',\n  'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'\n];\n\n// Public methods list\nvar methods = [\n  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',\n  'any', 'contains'\n].concat(tags);\n\n// Overrided methods list\nvar overrided = [\n  '_peekTag', '_decodeTag', '_use',\n  '_decodeStr', '_decodeObjid', '_decodeTime',\n  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',\n\n  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',\n  '_encodeNull', '_encodeInt', '_encodeBool'\n];\n\nfunction Node(enc, parent) {\n  var state = {};\n  this._baseState = state;\n\n  state.enc = enc;\n\n  state.parent = parent || null;\n  state.children = null;\n\n  // State\n  state.tag = null;\n  state.args = null;\n  state.reverseArgs = null;\n  state.choice = null;\n  state.optional = false;\n  state.any = false;\n  state.obj = false;\n  state.use = null;\n  state.useDecoder = null;\n  state.key = null;\n  state['default'] = null;\n  state.explicit = null;\n  state.implicit = null;\n  state.contains = null;\n\n  // Should create new instance on each method\n  if (!state.parent) {\n    state.children = [];\n    this._wrap();\n  }\n}\nmodule.exports = Node;\n\nvar stateProps = [\n  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',\n  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',\n  'implicit', 'contains'\n];\n\nNode.prototype.clone = function clone() {\n  var state = this._baseState;\n  var cstate = {};\n  stateProps.forEach(function(prop) {\n    cstate[prop] = state[prop];\n  });\n  var res = new this.constructor(cstate.parent);\n  res._baseState = cstate;\n  return res;\n};\n\nNode.prototype._wrap = function wrap() {\n  var state = this._baseState;\n  methods.forEach(function(method) {\n    this[method] = function _wrappedMethod() {\n      var clone = new this.constructor(this);\n      state.children.push(clone);\n      return clone[method].apply(clone, arguments);\n    };\n  }, this);\n};\n\nNode.prototype._init = function init(body) {\n  var state = this._baseState;\n\n  assert(state.parent === null);\n  body.call(this);\n\n  // Filter children\n  state.children = state.children.filter(function(child) {\n    return child._baseState.parent === this;\n  }, this);\n  assert.equal(state.children.length, 1, 'Root node can have only one child');\n};\n\nNode.prototype._useArgs = function useArgs(args) {\n  var state = this._baseState;\n\n  // Filter children and args\n  var children = args.filter(function(arg) {\n    return arg instanceof this.constructor;\n  }, this);\n  args = args.filter(function(arg) {\n    return !(arg instanceof this.constructor);\n  }, this);\n\n  if (children.length !== 0) {\n    assert(state.children === null);\n    state.children = children;\n\n    // Replace parent to maintain backward link\n    children.forEach(function(child) {\n      child._baseState.parent = this;\n    }, this);\n  }\n  if (args.length !== 0) {\n    assert(state.args === null);\n    state.args = args;\n    state.reverseArgs = args.map(function(arg) {\n      if (typeof arg !== 'object' || arg.constructor !== Object)\n        return arg;\n\n      var res = {};\n      Object.keys(arg).forEach(function(key) {\n        if (key == (key | 0))\n          key |= 0;\n        var value = arg[key];\n        res[value] = key;\n      });\n      return res;\n    });\n  }\n};\n\n//\n// Overrided methods\n//\n\noverrided.forEach(function(method) {\n  Node.prototype[method] = function _overrided() {\n    var state = this._baseState;\n    throw new Error(method + ' not implemented for encoding: ' + state.enc);\n  };\n});\n\n//\n// Public methods\n//\n\ntags.forEach(function(tag) {\n  Node.prototype[tag] = function _tagMethod() {\n    var state = this._baseState;\n    var args = Array.prototype.slice.call(arguments);\n\n    assert(state.tag === null);\n    state.tag = tag;\n\n    this._useArgs(args);\n\n    return this;\n  };\n});\n\nNode.prototype.use = function use(item) {\n  assert(item);\n  var state = this._baseState;\n\n  assert(state.use === null);\n  state.use = item;\n\n  return this;\n};\n\nNode.prototype.optional = function optional() {\n  var state = this._baseState;\n\n  state.optional = true;\n\n  return this;\n};\n\nNode.prototype.def = function def(val) {\n  var state = this._baseState;\n\n  assert(state['default'] === null);\n  state['default'] = val;\n  state.optional = true;\n\n  return this;\n};\n\nNode.prototype.explicit = function explicit(num) {\n  var state = this._baseState;\n\n  assert(state.explicit === null && state.implicit === null);\n  state.explicit = num;\n\n  return this;\n};\n\nNode.prototype.implicit = function implicit(num) {\n  var state = this._baseState;\n\n  assert(state.explicit === null && state.implicit === null);\n  state.implicit = num;\n\n  return this;\n};\n\nNode.prototype.obj = function obj() {\n  var state = this._baseState;\n  var args = Array.prototype.slice.call(arguments);\n\n  state.obj = true;\n\n  if (args.length !== 0)\n    this._useArgs(args);\n\n  return this;\n};\n\nNode.prototype.key = function key(newKey) {\n  var state = this._baseState;\n\n  assert(state.key === null);\n  state.key = newKey;\n\n  return this;\n};\n\nNode.prototype.any = function any() {\n  var state = this._baseState;\n\n  state.any = true;\n\n  return this;\n};\n\nNode.prototype.choice = function choice(obj) {\n  var state = this._baseState;\n\n  assert(state.choice === null);\n  state.choice = obj;\n  this._useArgs(Object.keys(obj).map(function(key) {\n    return obj[key];\n  }));\n\n  return this;\n};\n\nNode.prototype.contains = function contains(item) {\n  var state = this._baseState;\n\n  assert(state.use === null);\n  state.contains = item;\n\n  return this;\n};\n\n//\n// Decoding\n//\n\nNode.prototype._decode = function decode(input, options) {\n  var state = this._baseState;\n\n  // Decode root node\n  if (state.parent === null)\n    return input.wrapResult(state.children[0]._decode(input, options));\n\n  var result = state['default'];\n  var present = true;\n\n  var prevKey = null;\n  if (state.key !== null)\n    prevKey = input.enterKey(state.key);\n\n  // Check if tag is there\n  if (state.optional) {\n    var tag = null;\n    if (state.explicit !== null)\n      tag = state.explicit;\n    else if (state.implicit !== null)\n      tag = state.implicit;\n    else if (state.tag !== null)\n      tag = state.tag;\n\n    if (tag === null && !state.any) {\n      // Trial and Error\n      var save = input.save();\n      try {\n        if (state.choice === null)\n          this._decodeGeneric(state.tag, input, options);\n        else\n          this._decodeChoice(input, options);\n        present = true;\n      } catch (e) {\n        present = false;\n      }\n      input.restore(save);\n    } else {\n      present = this._peekTag(input, tag, state.any);\n\n      if (input.isError(present))\n        return present;\n    }\n  }\n\n  // Push object on stack\n  var prevObj;\n  if (state.obj && present)\n    prevObj = input.enterObject();\n\n  if (present) {\n    // Unwrap explicit values\n    if (state.explicit !== null) {\n      var explicit = this._decodeTag(input, state.explicit);\n      if (input.isError(explicit))\n        return explicit;\n      input = explicit;\n    }\n\n    var start = input.offset;\n\n    // Unwrap implicit and normal values\n    if (state.use === null && state.choice === null) {\n      if (state.any)\n        var save = input.save();\n      var body = this._decodeTag(\n        input,\n        state.implicit !== null ? state.implicit : state.tag,\n        state.any\n      );\n      if (input.isError(body))\n        return body;\n\n      if (state.any)\n        result = input.raw(save);\n      else\n        input = body;\n    }\n\n    if (options && options.track && state.tag !== null)\n      options.track(input.path(), start, input.length, 'tagged');\n\n    if (options && options.track && state.tag !== null)\n      options.track(input.path(), input.offset, input.length, 'content');\n\n    // Select proper method for tag\n    if (state.any)\n      result = result;\n    else if (state.choice === null)\n      result = this._decodeGeneric(state.tag, input, options);\n    else\n      result = this._decodeChoice(input, options);\n\n    if (input.isError(result))\n      return result;\n\n    // Decode children\n    if (!state.any && state.choice === null && state.children !== null) {\n      state.children.forEach(function decodeChildren(child) {\n        // NOTE: We are ignoring errors here, to let parser continue with other\n        // parts of encoded data\n        child._decode(input, options);\n      });\n    }\n\n    // Decode contained/encoded by schema, only in bit or octet strings\n    if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {\n      var data = new DecoderBuffer(result);\n      result = this._getUse(state.contains, input._reporterState.obj)\n          ._decode(data, options);\n    }\n  }\n\n  // Pop object\n  if (state.obj && present)\n    result = input.leaveObject(prevObj);\n\n  // Set key\n  if (state.key !== null && (result !== null || present === true))\n    input.leaveKey(prevKey, state.key, result);\n  else if (prevKey !== null)\n    input.exitKey(prevKey);\n\n  return result;\n};\n\nNode.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {\n  var state = this._baseState;\n\n  if (tag === 'seq' || tag === 'set')\n    return null;\n  if (tag === 'seqof' || tag === 'setof')\n    return this._decodeList(input, tag, state.args[0], options);\n  else if (/str$/.test(tag))\n    return this._decodeStr(input, tag, options);\n  else if (tag === 'objid' && state.args)\n    return this._decodeObjid(input, state.args[0], state.args[1], options);\n  else if (tag === 'objid')\n    return this._decodeObjid(input, null, null, options);\n  else if (tag === 'gentime' || tag === 'utctime')\n    return this._decodeTime(input, tag, options);\n  else if (tag === 'null_')\n    return this._decodeNull(input, options);\n  else if (tag === 'bool')\n    return this._decodeBool(input, options);\n  else if (tag === 'objDesc')\n    return this._decodeStr(input, tag, options);\n  else if (tag === 'int' || tag === 'enum')\n    return this._decodeInt(input, state.args && state.args[0], options);\n\n  if (state.use !== null) {\n    return this._getUse(state.use, input._reporterState.obj)\n        ._decode(input, options);\n  } else {\n    return input.error('unknown tag: ' + tag);\n  }\n};\n\nNode.prototype._getUse = function _getUse(entity, obj) {\n\n  var state = this._baseState;\n  // Create altered use decoder if implicit is set\n  state.useDecoder = this._use(entity, obj);\n  assert(state.useDecoder._baseState.parent === null);\n  state.useDecoder = state.useDecoder._baseState.children[0];\n  if (state.implicit !== state.useDecoder._baseState.implicit) {\n    state.useDecoder = state.useDecoder.clone();\n    state.useDecoder._baseState.implicit = state.implicit;\n  }\n  return state.useDecoder;\n};\n\nNode.prototype._decodeChoice = function decodeChoice(input, options) {\n  var state = this._baseState;\n  var result = null;\n  var match = false;\n\n  Object.keys(state.choice).some(function(key) {\n    var save = input.save();\n    var node = state.choice[key];\n    try {\n      var value = node._decode(input, options);\n      if (input.isError(value))\n        return false;\n\n      result = { type: key, value: value };\n      match = true;\n    } catch (e) {\n      input.restore(save);\n      return false;\n    }\n    return true;\n  }, this);\n\n  if (!match)\n    return input.error('Choice not matched');\n\n  return result;\n};\n\n//\n// Encoding\n//\n\nNode.prototype._createEncoderBuffer = function createEncoderBuffer(data) {\n  return new EncoderBuffer(data, this.reporter);\n};\n\nNode.prototype._encode = function encode(data, reporter, parent) {\n  var state = this._baseState;\n  if (state['default'] !== null && state['default'] === data)\n    return;\n\n  var result = this._encodeValue(data, reporter, parent);\n  if (result === undefined)\n    return;\n\n  if (this._skipDefault(result, reporter, parent))\n    return;\n\n  return result;\n};\n\nNode.prototype._encodeValue = function encode(data, reporter, parent) {\n  var state = this._baseState;\n\n  // Decode root node\n  if (state.parent === null)\n    return state.children[0]._encode(data, reporter || new Reporter());\n\n  var result = null;\n\n  // Set reporter to share it with a child class\n  this.reporter = reporter;\n\n  // Check if data is there\n  if (state.optional && data === undefined) {\n    if (state['default'] !== null)\n      data = state['default']\n    else\n      return;\n  }\n\n  // Encode children first\n  var content = null;\n  var primitive = false;\n  if (state.any) {\n    // Anything that was given is translated to buffer\n    result = this._createEncoderBuffer(data);\n  } else if (state.choice) {\n    result = this._encodeChoice(data, reporter);\n  } else if (state.contains) {\n    content = this._getUse(state.contains, parent)._encode(data, reporter);\n    primitive = true;\n  } else if (state.children) {\n    content = state.children.map(function(child) {\n      if (child._baseState.tag === 'null_')\n        return child._encode(null, reporter, data);\n\n      if (child._baseState.key === null)\n        return reporter.error('Child should have a key');\n      var prevKey = reporter.enterKey(child._baseState.key);\n\n      if (typeof data !== 'object')\n        return reporter.error('Child expected, but input is not object');\n\n      var res = child._encode(data[child._baseState.key], reporter, data);\n      reporter.leaveKey(prevKey);\n\n      return res;\n    }, this).filter(function(child) {\n      return child;\n    });\n    content = this._createEncoderBuffer(content);\n  } else {\n    if (state.tag === 'seqof' || state.tag === 'setof') {\n      // TODO(indutny): this should be thrown on DSL level\n      if (!(state.args && state.args.length === 1))\n        return reporter.error('Too many args for : ' + state.tag);\n\n      if (!Array.isArray(data))\n        return reporter.error('seqof/setof, but data is not Array');\n\n      var child = this.clone();\n      child._baseState.implicit = null;\n      content = this._createEncoderBuffer(data.map(function(item) {\n        var state = this._baseState;\n\n        return this._getUse(state.args[0], data)._encode(item, reporter);\n      }, child));\n    } else if (state.use !== null) {\n      result = this._getUse(state.use, parent)._encode(data, reporter);\n    } else {\n      content = this._encodePrimitive(state.tag, data);\n      primitive = true;\n    }\n  }\n\n  // Encode data itself\n  var result;\n  if (!state.any && state.choice === null) {\n    var tag = state.implicit !== null ? state.implicit : state.tag;\n    var cls = state.implicit === null ? 'universal' : 'context';\n\n    if (tag === null) {\n      if (state.use === null)\n        reporter.error('Tag could be omitted only for .use()');\n    } else {\n      if (state.use === null)\n        result = this._encodeComposite(tag, primitive, cls, content);\n    }\n  }\n\n  // Wrap in explicit\n  if (state.explicit !== null)\n    result = this._encodeComposite(state.explicit, false, 'context', result);\n\n  return result;\n};\n\nNode.prototype._encodeChoice = function encodeChoice(data, reporter) {\n  var state = this._baseState;\n\n  var node = state.choice[data.type];\n  if (!node) {\n    assert(\n        false,\n        data.type + ' not found in ' +\n            JSON.stringify(Object.keys(state.choice)));\n  }\n  return node._encode(data.value, reporter);\n};\n\nNode.prototype._encodePrimitive = function encodePrimitive(tag, data) {\n  var state = this._baseState;\n\n  if (/str$/.test(tag))\n    return this._encodeStr(data, tag);\n  else if (tag === 'objid' && state.args)\n    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);\n  else if (tag === 'objid')\n    return this._encodeObjid(data, null, null);\n  else if (tag === 'gentime' || tag === 'utctime')\n    return this._encodeTime(data, tag);\n  else if (tag === 'null_')\n    return this._encodeNull();\n  else if (tag === 'int' || tag === 'enum')\n    return this._encodeInt(data, state.args && state.reverseArgs[0]);\n  else if (tag === 'bool')\n    return this._encodeBool(data);\n  else if (tag === 'objDesc')\n    return this._encodeStr(data, tag);\n  else\n    throw new Error('Unsupported tag: ' + tag);\n};\n\nNode.prototype._isNumstr = function isNumstr(str) {\n  return /^[0-9 ]*$/.test(str);\n};\n\nNode.prototype._isPrintstr = function isPrintstr(str) {\n  return /^[A-Za-z0-9 '\\(\\)\\+,\\-\\.\\/:=\\?]*$/.test(str);\n};\n","var inherits = require('inherits');\n\nfunction Reporter(options) {\n  this._reporterState = {\n    obj: null,\n    path: [],\n    options: options || {},\n    errors: []\n  };\n}\nexports.Reporter = Reporter;\n\nReporter.prototype.isError = function isError(obj) {\n  return obj instanceof ReporterError;\n};\n\nReporter.prototype.save = function save() {\n  var state = this._reporterState;\n\n  return { obj: state.obj, pathLen: state.path.length };\n};\n\nReporter.prototype.restore = function restore(data) {\n  var state = this._reporterState;\n\n  state.obj = data.obj;\n  state.path = state.path.slice(0, data.pathLen);\n};\n\nReporter.prototype.enterKey = function enterKey(key) {\n  return this._reporterState.path.push(key);\n};\n\nReporter.prototype.exitKey = function exitKey(index) {\n  var state = this._reporterState;\n\n  state.path = state.path.slice(0, index - 1);\n};\n\nReporter.prototype.leaveKey = function leaveKey(index, key, value) {\n  var state = this._reporterState;\n\n  this.exitKey(index);\n  if (state.obj !== null)\n    state.obj[key] = value;\n};\n\nReporter.prototype.path = function path() {\n  return this._reporterState.path.join('/');\n};\n\nReporter.prototype.enterObject = function enterObject() {\n  var state = this._reporterState;\n\n  var prev = state.obj;\n  state.obj = {};\n  return prev;\n};\n\nReporter.prototype.leaveObject = function leaveObject(prev) {\n  var state = this._reporterState;\n\n  var now = state.obj;\n  state.obj = prev;\n  return now;\n};\n\nReporter.prototype.error = function error(msg) {\n  var err;\n  var state = this._reporterState;\n\n  var inherited = msg instanceof ReporterError;\n  if (inherited) {\n    err = msg;\n  } else {\n    err = new ReporterError(state.path.map(function(elem) {\n      return '[' + JSON.stringify(elem) + ']';\n    }).join(''), msg.message || msg, msg.stack);\n  }\n\n  if (!state.options.partial)\n    throw err;\n\n  if (!inherited)\n    state.errors.push(err);\n\n  return err;\n};\n\nReporter.prototype.wrapResult = function wrapResult(result) {\n  var state = this._reporterState;\n  if (!state.options.partial)\n    return result;\n\n  return {\n    result: this.isError(result) ? null : result,\n    errors: state.errors\n  };\n};\n\nfunction ReporterError(path, msg) {\n  this.path = path;\n  this.rethrow(msg);\n};\ninherits(ReporterError, Error);\n\nReporterError.prototype.rethrow = function rethrow(msg) {\n  this.message = msg + ' at: ' + (this.path || '(shallow)');\n  if (Error.captureStackTrace)\n    Error.captureStackTrace(this, ReporterError);\n\n  if (!this.stack) {\n    try {\n      // IE only adds stack when thrown\n      throw new Error(this.message);\n    } catch (e) {\n      this.stack = e.stack;\n    }\n  }\n  return this;\n};\n","var constants = require('../constants');\n\nexports.tagClass = {\n  0: 'universal',\n  1: 'application',\n  2: 'context',\n  3: 'private'\n};\nexports.tagClassByName = constants._reverse(exports.tagClass);\n\nexports.tag = {\n  0x00: 'end',\n  0x01: 'bool',\n  0x02: 'int',\n  0x03: 'bitstr',\n  0x04: 'octstr',\n  0x05: 'null_',\n  0x06: 'objid',\n  0x07: 'objDesc',\n  0x08: 'external',\n  0x09: 'real',\n  0x0a: 'enum',\n  0x0b: 'embed',\n  0x0c: 'utf8str',\n  0x0d: 'relativeOid',\n  0x10: 'seq',\n  0x11: 'set',\n  0x12: 'numstr',\n  0x13: 'printstr',\n  0x14: 't61str',\n  0x15: 'videostr',\n  0x16: 'ia5str',\n  0x17: 'utctime',\n  0x18: 'gentime',\n  0x19: 'graphstr',\n  0x1a: 'iso646str',\n  0x1b: 'genstr',\n  0x1c: 'unistr',\n  0x1d: 'charstr',\n  0x1e: 'bmpstr'\n};\nexports.tagByName = constants._reverse(exports.tag);\n","var constants = exports;\n\n// Helper\nconstants._reverse = function reverse(map) {\n  var res = {};\n\n  Object.keys(map).forEach(function(key) {\n    // Convert key to integer if it is stringified\n    if ((key | 0) == key)\n      key = key | 0;\n\n    var value = map[key];\n    res[value] = key;\n  });\n\n  return res;\n};\n\nconstants.der = require('./der');\n","var inherits = require('inherits');\n\nvar asn1 = require('../../asn1');\nvar base = asn1.base;\nvar bignum = asn1.bignum;\n\n// Import DER constants\nvar der = asn1.constants.der;\n\nfunction DERDecoder(entity) {\n  this.enc = 'der';\n  this.name = entity.name;\n  this.entity = entity;\n\n  // Construct base tree\n  this.tree = new DERNode();\n  this.tree._init(entity.body);\n};\nmodule.exports = DERDecoder;\n\nDERDecoder.prototype.decode = function decode(data, options) {\n  if (!(data instanceof base.DecoderBuffer))\n    data = new base.DecoderBuffer(data, options);\n\n  return this.tree._decode(data, options);\n};\n\n// Tree methods\n\nfunction DERNode(parent) {\n  base.Node.call(this, 'der', parent);\n}\ninherits(DERNode, base.Node);\n\nDERNode.prototype._peekTag = function peekTag(buffer, tag, any) {\n  if (buffer.isEmpty())\n    return false;\n\n  var state = buffer.save();\n  var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: \"' + tag + '\"');\n  if (buffer.isError(decodedTag))\n    return decodedTag;\n\n  buffer.restore(state);\n\n  return decodedTag.tag === tag || decodedTag.tagStr === tag ||\n    (decodedTag.tagStr + 'of') === tag || any;\n};\n\nDERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) {\n  var decodedTag = derDecodeTag(buffer,\n                                'Failed to decode tag of \"' + tag + '\"');\n  if (buffer.isError(decodedTag))\n    return decodedTag;\n\n  var len = derDecodeLen(buffer,\n                         decodedTag.primitive,\n                         'Failed to get length of \"' + tag + '\"');\n\n  // Failure\n  if (buffer.isError(len))\n    return len;\n\n  if (!any &&\n      decodedTag.tag !== tag &&\n      decodedTag.tagStr !== tag &&\n      decodedTag.tagStr + 'of' !== tag) {\n    return buffer.error('Failed to match tag: \"' + tag + '\"');\n  }\n\n  if (decodedTag.primitive || len !== null)\n    return buffer.skip(len, 'Failed to match body of: \"' + tag + '\"');\n\n  // Indefinite length... find END tag\n  var state = buffer.save();\n  var res = this._skipUntilEnd(\n      buffer,\n      'Failed to skip indefinite length body: \"' + this.tag + '\"');\n  if (buffer.isError(res))\n    return res;\n\n  len = buffer.offset - state.offset;\n  buffer.restore(state);\n  return buffer.skip(len, 'Failed to match body of: \"' + tag + '\"');\n};\n\nDERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) {\n  while (true) {\n    var tag = derDecodeTag(buffer, fail);\n    if (buffer.isError(tag))\n      return tag;\n    var len = derDecodeLen(buffer, tag.primitive, fail);\n    if (buffer.isError(len))\n      return len;\n\n    var res;\n    if (tag.primitive || len !== null)\n      res = buffer.skip(len)\n    else\n      res = this._skipUntilEnd(buffer, fail);\n\n    // Failure\n    if (buffer.isError(res))\n      return res;\n\n    if (tag.tagStr === 'end')\n      break;\n  }\n};\n\nDERNode.prototype._decodeList = function decodeList(buffer, tag, decoder,\n                                                    options) {\n  var result = [];\n  while (!buffer.isEmpty()) {\n    var possibleEnd = this._peekTag(buffer, 'end');\n    if (buffer.isError(possibleEnd))\n      return possibleEnd;\n\n    var res = decoder.decode(buffer, 'der', options);\n    if (buffer.isError(res) && possibleEnd)\n      break;\n    result.push(res);\n  }\n  return result;\n};\n\nDERNode.prototype._decodeStr = function decodeStr(buffer, tag) {\n  if (tag === 'bitstr') {\n    var unused = buffer.readUInt8();\n    if (buffer.isError(unused))\n      return unused;\n    return { unused: unused, data: buffer.raw() };\n  } else if (tag === 'bmpstr') {\n    var raw = buffer.raw();\n    if (raw.length % 2 === 1)\n      return buffer.error('Decoding of string type: bmpstr length mismatch');\n\n    var str = '';\n    for (var i = 0; i < raw.length / 2; i++) {\n      str += String.fromCharCode(raw.readUInt16BE(i * 2));\n    }\n    return str;\n  } else if (tag === 'numstr') {\n    var numstr = buffer.raw().toString('ascii');\n    if (!this._isNumstr(numstr)) {\n      return buffer.error('Decoding of string type: ' +\n                          'numstr unsupported characters');\n    }\n    return numstr;\n  } else if (tag === 'octstr') {\n    return buffer.raw();\n  } else if (tag === 'objDesc') {\n    return buffer.raw();\n  } else if (tag === 'printstr') {\n    var printstr = buffer.raw().toString('ascii');\n    if (!this._isPrintstr(printstr)) {\n      return buffer.error('Decoding of string type: ' +\n                          'printstr unsupported characters');\n    }\n    return printstr;\n  } else if (/str$/.test(tag)) {\n    return buffer.raw().toString();\n  } else {\n    return buffer.error('Decoding of string type: ' + tag + ' unsupported');\n  }\n};\n\nDERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) {\n  var result;\n  var identifiers = [];\n  var ident = 0;\n  while (!buffer.isEmpty()) {\n    var subident = buffer.readUInt8();\n    ident <<= 7;\n    ident |= subident & 0x7f;\n    if ((subident & 0x80) === 0) {\n      identifiers.push(ident);\n      ident = 0;\n    }\n  }\n  if (subident & 0x80)\n    identifiers.push(ident);\n\n  var first = (identifiers[0] / 40) | 0;\n  var second = identifiers[0] % 40;\n\n  if (relative)\n    result = identifiers;\n  else\n    result = [first, second].concat(identifiers.slice(1));\n\n  if (values) {\n    var tmp = values[result.join(' ')];\n    if (tmp === undefined)\n      tmp = values[result.join('.')];\n    if (tmp !== undefined)\n      result = tmp;\n  }\n\n  return result;\n};\n\nDERNode.prototype._decodeTime = function decodeTime(buffer, tag) {\n  var str = buffer.raw().toString();\n  if (tag === 'gentime') {\n    var year = str.slice(0, 4) | 0;\n    var mon = str.slice(4, 6) | 0;\n    var day = str.slice(6, 8) | 0;\n    var hour = str.slice(8, 10) | 0;\n    var min = str.slice(10, 12) | 0;\n    var sec = str.slice(12, 14) | 0;\n  } else if (tag === 'utctime') {\n    var year = str.slice(0, 2) | 0;\n    var mon = str.slice(2, 4) | 0;\n    var day = str.slice(4, 6) | 0;\n    var hour = str.slice(6, 8) | 0;\n    var min = str.slice(8, 10) | 0;\n    var sec = str.slice(10, 12) | 0;\n    if (year < 70)\n      year = 2000 + year;\n    else\n      year = 1900 + year;\n  } else {\n    return buffer.error('Decoding ' + tag + ' time is not supported yet');\n  }\n\n  return Date.UTC(year, mon - 1, day, hour, min, sec, 0);\n};\n\nDERNode.prototype._decodeNull = function decodeNull(buffer) {\n  return null;\n};\n\nDERNode.prototype._decodeBool = function decodeBool(buffer) {\n  var res = buffer.readUInt8();\n  if (buffer.isError(res))\n    return res;\n  else\n    return res !== 0;\n};\n\nDERNode.prototype._decodeInt = function decodeInt(buffer, values) {\n  // Bigint, return as it is (assume big endian)\n  var raw = buffer.raw();\n  var res = new bignum(raw);\n\n  if (values)\n    res = values[res.toString(10)] || res;\n\n  return res;\n};\n\nDERNode.prototype._use = function use(entity, obj) {\n  if (typeof entity === 'function')\n    entity = entity(obj);\n  return entity._getDecoder('der').tree;\n};\n\n// Utility methods\n\nfunction derDecodeTag(buf, fail) {\n  var tag = buf.readUInt8(fail);\n  if (buf.isError(tag))\n    return tag;\n\n  var cls = der.tagClass[tag >> 6];\n  var primitive = (tag & 0x20) === 0;\n\n  // Multi-octet tag - load\n  if ((tag & 0x1f) === 0x1f) {\n    var oct = tag;\n    tag = 0;\n    while ((oct & 0x80) === 0x80) {\n      oct = buf.readUInt8(fail);\n      if (buf.isError(oct))\n        return oct;\n\n      tag <<= 7;\n      tag |= oct & 0x7f;\n    }\n  } else {\n    tag &= 0x1f;\n  }\n  var tagStr = der.tag[tag];\n\n  return {\n    cls: cls,\n    primitive: primitive,\n    tag: tag,\n    tagStr: tagStr\n  };\n}\n\nfunction derDecodeLen(buf, primitive, fail) {\n  var len = buf.readUInt8(fail);\n  if (buf.isError(len))\n    return len;\n\n  // Indefinite form\n  if (!primitive && len === 0x80)\n    return null;\n\n  // Definite form\n  if ((len & 0x80) === 0) {\n    // Short form\n    return len;\n  }\n\n  // Long form\n  var num = len & 0x7f;\n  if (num > 4)\n    return buf.error('length octect is too long');\n\n  len = 0;\n  for (var i = 0; i < num; i++) {\n    len <<= 8;\n    var j = buf.readUInt8(fail);\n    if (buf.isError(j))\n      return j;\n    len |= j;\n  }\n\n  return len;\n}\n","var decoders = exports;\n\ndecoders.der = require('./der');\ndecoders.pem = require('./pem');\n","var inherits = require('inherits');\nvar Buffer = require('buffer').Buffer;\n\nvar DERDecoder = require('./der');\n\nfunction PEMDecoder(entity) {\n  DERDecoder.call(this, entity);\n  this.enc = 'pem';\n};\ninherits(PEMDecoder, DERDecoder);\nmodule.exports = PEMDecoder;\n\nPEMDecoder.prototype.decode = function decode(data, options) {\n  var lines = data.toString().split(/[\\r\\n]+/g);\n\n  var label = options.label.toUpperCase();\n\n  var re = /^-----(BEGIN|END) ([^-]+)-----$/;\n  var start = -1;\n  var end = -1;\n  for (var i = 0; i < lines.length; i++) {\n    var match = lines[i].match(re);\n    if (match === null)\n      continue;\n\n    if (match[2] !== label)\n      continue;\n\n    if (start === -1) {\n      if (match[1] !== 'BEGIN')\n        break;\n      start = i;\n    } else {\n      if (match[1] !== 'END')\n        break;\n      end = i;\n      break;\n    }\n  }\n  if (start === -1 || end === -1)\n    throw new Error('PEM section not found for: ' + label);\n\n  var base64 = lines.slice(start + 1, end).join('');\n  // Remove excessive symbols\n  base64.replace(/[^a-z0-9\\+\\/=]+/gi, '');\n\n  var input = new Buffer(base64, 'base64');\n  return DERDecoder.prototype.decode.call(this, input, options);\n};\n","var inherits = require('inherits');\nvar Buffer = require('buffer').Buffer;\n\nvar asn1 = require('../../asn1');\nvar base = asn1.base;\n\n// Import DER constants\nvar der = asn1.constants.der;\n\nfunction DEREncoder(entity) {\n  this.enc = 'der';\n  this.name = entity.name;\n  this.entity = entity;\n\n  // Construct base tree\n  this.tree = new DERNode();\n  this.tree._init(entity.body);\n};\nmodule.exports = DEREncoder;\n\nDEREncoder.prototype.encode = function encode(data, reporter) {\n  return this.tree._encode(data, reporter).join();\n};\n\n// Tree methods\n\nfunction DERNode(parent) {\n  base.Node.call(this, 'der', parent);\n}\ninherits(DERNode, base.Node);\n\nDERNode.prototype._encodeComposite = function encodeComposite(tag,\n                                                              primitive,\n                                                              cls,\n                                                              content) {\n  var encodedTag = encodeTag(tag, primitive, cls, this.reporter);\n\n  // Short form\n  if (content.length < 0x80) {\n    var header = new Buffer(2);\n    header[0] = encodedTag;\n    header[1] = content.length;\n    return this._createEncoderBuffer([ header, content ]);\n  }\n\n  // Long form\n  // Count octets required to store length\n  var lenOctets = 1;\n  for (var i = content.length; i >= 0x100; i >>= 8)\n    lenOctets++;\n\n  var header = new Buffer(1 + 1 + lenOctets);\n  header[0] = encodedTag;\n  header[1] = 0x80 | lenOctets;\n\n  for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8)\n    header[i] = j & 0xff;\n\n  return this._createEncoderBuffer([ header, content ]);\n};\n\nDERNode.prototype._encodeStr = function encodeStr(str, tag) {\n  if (tag === 'bitstr') {\n    return this._createEncoderBuffer([ str.unused | 0, str.data ]);\n  } else if (tag === 'bmpstr') {\n    var buf = new Buffer(str.length * 2);\n    for (var i = 0; i < str.length; i++) {\n      buf.writeUInt16BE(str.charCodeAt(i), i * 2);\n    }\n    return this._createEncoderBuffer(buf);\n  } else if (tag === 'numstr') {\n    if (!this._isNumstr(str)) {\n      return this.reporter.error('Encoding of string type: numstr supports ' +\n                                 'only digits and space');\n    }\n    return this._createEncoderBuffer(str);\n  } else if (tag === 'printstr') {\n    if (!this._isPrintstr(str)) {\n      return this.reporter.error('Encoding of string type: printstr supports ' +\n                                 'only latin upper and lower case letters, ' +\n                                 'digits, space, apostrophe, left and rigth ' +\n                                 'parenthesis, plus sign, comma, hyphen, ' +\n                                 'dot, slash, colon, equal sign, ' +\n                                 'question mark');\n    }\n    return this._createEncoderBuffer(str);\n  } else if (/str$/.test(tag)) {\n    return this._createEncoderBuffer(str);\n  } else if (tag === 'objDesc') {\n    return this._createEncoderBuffer(str);\n  } else {\n    return this.reporter.error('Encoding of string type: ' + tag +\n                               ' unsupported');\n  }\n};\n\nDERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) {\n  if (typeof id === 'string') {\n    if (!values)\n      return this.reporter.error('string objid given, but no values map found');\n    if (!values.hasOwnProperty(id))\n      return this.reporter.error('objid not found in values map');\n    id = values[id].split(/[\\s\\.]+/g);\n    for (var i = 0; i < id.length; i++)\n      id[i] |= 0;\n  } else if (Array.isArray(id)) {\n    id = id.slice();\n    for (var i = 0; i < id.length; i++)\n      id[i] |= 0;\n  }\n\n  if (!Array.isArray(id)) {\n    return this.reporter.error('objid() should be either array or string, ' +\n                               'got: ' + JSON.stringify(id));\n  }\n\n  if (!relative) {\n    if (id[1] >= 40)\n      return this.reporter.error('Second objid identifier OOB');\n    id.splice(0, 2, id[0] * 40 + id[1]);\n  }\n\n  // Count number of octets\n  var size = 0;\n  for (var i = 0; i < id.length; i++) {\n    var ident = id[i];\n    for (size++; ident >= 0x80; ident >>= 7)\n      size++;\n  }\n\n  var objid = new Buffer(size);\n  var offset = objid.length - 1;\n  for (var i = id.length - 1; i >= 0; i--) {\n    var ident = id[i];\n    objid[offset--] = ident & 0x7f;\n    while ((ident >>= 7) > 0)\n      objid[offset--] = 0x80 | (ident & 0x7f);\n  }\n\n  return this._createEncoderBuffer(objid);\n};\n\nfunction two(num) {\n  if (num < 10)\n    return '0' + num;\n  else\n    return num;\n}\n\nDERNode.prototype._encodeTime = function encodeTime(time, tag) {\n  var str;\n  var date = new Date(time);\n\n  if (tag === 'gentime') {\n    str = [\n      two(date.getFullYear()),\n      two(date.getUTCMonth() + 1),\n      two(date.getUTCDate()),\n      two(date.getUTCHours()),\n      two(date.getUTCMinutes()),\n      two(date.getUTCSeconds()),\n      'Z'\n    ].join('');\n  } else if (tag === 'utctime') {\n    str = [\n      two(date.getFullYear() % 100),\n      two(date.getUTCMonth() + 1),\n      two(date.getUTCDate()),\n      two(date.getUTCHours()),\n      two(date.getUTCMinutes()),\n      two(date.getUTCSeconds()),\n      'Z'\n    ].join('');\n  } else {\n    this.reporter.error('Encoding ' + tag + ' time is not supported yet');\n  }\n\n  return this._encodeStr(str, 'octstr');\n};\n\nDERNode.prototype._encodeNull = function encodeNull() {\n  return this._createEncoderBuffer('');\n};\n\nDERNode.prototype._encodeInt = function encodeInt(num, values) {\n  if (typeof num === 'string') {\n    if (!values)\n      return this.reporter.error('String int or enum given, but no values map');\n    if (!values.hasOwnProperty(num)) {\n      return this.reporter.error('Values map doesn\\'t contain: ' +\n                                 JSON.stringify(num));\n    }\n    num = values[num];\n  }\n\n  // Bignum, assume big endian\n  if (typeof num !== 'number' && !Buffer.isBuffer(num)) {\n    var numArray = num.toArray();\n    if (!num.sign && numArray[0] & 0x80) {\n      numArray.unshift(0);\n    }\n    num = new Buffer(numArray);\n  }\n\n  if (Buffer.isBuffer(num)) {\n    var size = num.length;\n    if (num.length === 0)\n      size++;\n\n    var out = new Buffer(size);\n    num.copy(out);\n    if (num.length === 0)\n      out[0] = 0\n    return this._createEncoderBuffer(out);\n  }\n\n  if (num < 0x80)\n    return this._createEncoderBuffer(num);\n\n  if (num < 0x100)\n    return this._createEncoderBuffer([0, num]);\n\n  var size = 1;\n  for (var i = num; i >= 0x100; i >>= 8)\n    size++;\n\n  var out = new Array(size);\n  for (var i = out.length - 1; i >= 0; i--) {\n    out[i] = num & 0xff;\n    num >>= 8;\n  }\n  if(out[0] & 0x80) {\n    out.unshift(0);\n  }\n\n  return this._createEncoderBuffer(new Buffer(out));\n};\n\nDERNode.prototype._encodeBool = function encodeBool(value) {\n  return this._createEncoderBuffer(value ? 0xff : 0);\n};\n\nDERNode.prototype._use = function use(entity, obj) {\n  if (typeof entity === 'function')\n    entity = entity(obj);\n  return entity._getEncoder('der').tree;\n};\n\nDERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) {\n  var state = this._baseState;\n  var i;\n  if (state['default'] === null)\n    return false;\n\n  var data = dataBuffer.join();\n  if (state.defaultBuffer === undefined)\n    state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join();\n\n  if (data.length !== state.defaultBuffer.length)\n    return false;\n\n  for (i=0; i < data.length; i++)\n    if (data[i] !== state.defaultBuffer[i])\n      return false;\n\n  return true;\n};\n\n// Utility methods\n\nfunction encodeTag(tag, primitive, cls, reporter) {\n  var res;\n\n  if (tag === 'seqof')\n    tag = 'seq';\n  else if (tag === 'setof')\n    tag = 'set';\n\n  if (der.tagByName.hasOwnProperty(tag))\n    res = der.tagByName[tag];\n  else if (typeof tag === 'number' && (tag | 0) === tag)\n    res = tag;\n  else\n    return reporter.error('Unknown tag: ' + tag);\n\n  if (res >= 0x1f)\n    return reporter.error('Multi-octet tag encoding unsupported');\n\n  if (!primitive)\n    res |= 0x20;\n\n  res |= (der.tagClassByName[cls || 'universal'] << 6);\n\n  return res;\n}\n","var encoders = exports;\n\nencoders.der = require('./der');\nencoders.pem = require('./pem');\n","var inherits = require('inherits');\n\nvar DEREncoder = require('./der');\n\nfunction PEMEncoder(entity) {\n  DEREncoder.call(this, entity);\n  this.enc = 'pem';\n};\ninherits(PEMEncoder, DEREncoder);\nmodule.exports = PEMEncoder;\n\nPEMEncoder.prototype.encode = function encode(data, options) {\n  var buf = DEREncoder.prototype.encode.call(this, data);\n\n  var p = buf.toString('base64');\n  var out = [ '-----BEGIN ' + options.label + '-----' ];\n  for (var i = 0; i < p.length; i += 64)\n    out.push(p.slice(i, i + 64));\n  out.push('-----END ' + options.label + '-----');\n  return out.join('\\n');\n};\n","'use strict'\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i]\n  revLookup[code.charCodeAt(i)] = i\n}\n\n// Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction getLens (b64) {\n  var len = b64.length\n\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4')\n  }\n\n  // Trim off extra bytes after placeholder bytes are found\n  // See: https://github.com/beatgammit/base64-js/issues/42\n  var validLen = b64.indexOf('=')\n  if (validLen === -1) validLen = len\n\n  var placeHoldersLen = validLen === len\n    ? 0\n    : 4 - (validLen % 4)\n\n  return [validLen, placeHoldersLen]\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength (b64) {\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n  var tmp\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n\n  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\n\n  var curByte = 0\n\n  // if there are placeholders, only get up to the last complete 4 chars\n  var len = placeHoldersLen > 0\n    ? validLen - 4\n    : validLen\n\n  var i\n  for (i = 0; i < len; i += 4) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 18) |\n      (revLookup[b64.charCodeAt(i + 1)] << 12) |\n      (revLookup[b64.charCodeAt(i + 2)] << 6) |\n      revLookup[b64.charCodeAt(i + 3)]\n    arr[curByte++] = (tmp >> 16) & 0xFF\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 2) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 2) |\n      (revLookup[b64.charCodeAt(i + 1)] >> 4)\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 1) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 10) |\n      (revLookup[b64.charCodeAt(i + 1)] << 4) |\n      (revLookup[b64.charCodeAt(i + 2)] >> 2)\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  return arr\n}\n\nfunction tripletToBase64 (num) {\n  return lookup[num >> 18 & 0x3F] +\n    lookup[num >> 12 & 0x3F] +\n    lookup[num >> 6 & 0x3F] +\n    lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n  var tmp\n  var output = []\n  for (var i = start; i < end; i += 3) {\n    tmp =\n      ((uint8[i] << 16) & 0xFF0000) +\n      ((uint8[i + 1] << 8) & 0xFF00) +\n      (uint8[i + 2] & 0xFF)\n    output.push(tripletToBase64(tmp))\n  }\n  return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n  var tmp\n  var len = uint8.length\n  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n  var parts = []\n  var maxChunkLength = 16383 // must be multiple of 3\n\n  // go through the array every three bytes, we'll deal with trailing stuff later\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(\n      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)\n    ))\n  }\n\n  // pad the end with zeros, but make sure to not forget the extra bytes\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 2] +\n      lookup[(tmp << 4) & 0x3F] +\n      '=='\n    )\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 10] +\n      lookup[(tmp >> 4) & 0x3F] +\n      lookup[(tmp << 2) & 0x3F] +\n      '='\n    )\n  }\n\n  return parts.join('')\n}\n","(function (module, exports) {\n  'use strict';\n\n  // Utils\n  function assert (val, msg) {\n    if (!val) throw new Error(msg || 'Assertion failed');\n  }\n\n  // Could use `inherits` module, but don't want to move from single file\n  // architecture yet.\n  function inherits (ctor, superCtor) {\n    ctor.super_ = superCtor;\n    var TempCtor = function () {};\n    TempCtor.prototype = superCtor.prototype;\n    ctor.prototype = new TempCtor();\n    ctor.prototype.constructor = ctor;\n  }\n\n  // BN\n\n  function BN (number, base, endian) {\n    if (BN.isBN(number)) {\n      return number;\n    }\n\n    this.negative = 0;\n    this.words = null;\n    this.length = 0;\n\n    // Reduction context\n    this.red = null;\n\n    if (number !== null) {\n      if (base === 'le' || base === 'be') {\n        endian = base;\n        base = 10;\n      }\n\n      this._init(number || 0, base || 10, endian || 'be');\n    }\n  }\n  if (typeof module === 'object') {\n    module.exports = BN;\n  } else {\n    exports.BN = BN;\n  }\n\n  BN.BN = BN;\n  BN.wordSize = 26;\n\n  var Buffer;\n  try {\n    Buffer = require('buffer').Buffer;\n  } catch (e) {\n  }\n\n  BN.isBN = function isBN (num) {\n    if (num instanceof BN) {\n      return true;\n    }\n\n    return num !== null && typeof num === 'object' &&\n      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);\n  };\n\n  BN.max = function max (left, right) {\n    if (left.cmp(right) > 0) return left;\n    return right;\n  };\n\n  BN.min = function min (left, right) {\n    if (left.cmp(right) < 0) return left;\n    return right;\n  };\n\n  BN.prototype._init = function init (number, base, endian) {\n    if (typeof number === 'number') {\n      return this._initNumber(number, base, endian);\n    }\n\n    if (typeof number === 'object') {\n      return this._initArray(number, base, endian);\n    }\n\n    if (base === 'hex') {\n      base = 16;\n    }\n    assert(base === (base | 0) && base >= 2 && base <= 36);\n\n    number = number.toString().replace(/\\s+/g, '');\n    var start = 0;\n    if (number[0] === '-') {\n      start++;\n    }\n\n    if (base === 16) {\n      this._parseHex(number, start);\n    } else {\n      this._parseBase(number, base, start);\n    }\n\n    if (number[0] === '-') {\n      this.negative = 1;\n    }\n\n    this.strip();\n\n    if (endian !== 'le') return;\n\n    this._initArray(this.toArray(), base, endian);\n  };\n\n  BN.prototype._initNumber = function _initNumber (number, base, endian) {\n    if (number < 0) {\n      this.negative = 1;\n      number = -number;\n    }\n    if (number < 0x4000000) {\n      this.words = [ number & 0x3ffffff ];\n      this.length = 1;\n    } else if (number < 0x10000000000000) {\n      this.words = [\n        number & 0x3ffffff,\n        (number / 0x4000000) & 0x3ffffff\n      ];\n      this.length = 2;\n    } else {\n      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)\n      this.words = [\n        number & 0x3ffffff,\n        (number / 0x4000000) & 0x3ffffff,\n        1\n      ];\n      this.length = 3;\n    }\n\n    if (endian !== 'le') return;\n\n    // Reverse the bytes\n    this._initArray(this.toArray(), base, endian);\n  };\n\n  BN.prototype._initArray = function _initArray (number, base, endian) {\n    // Perhaps a Uint8Array\n    assert(typeof number.length === 'number');\n    if (number.length <= 0) {\n      this.words = [ 0 ];\n      this.length = 1;\n      return this;\n    }\n\n    this.length = Math.ceil(number.length / 3);\n    this.words = new Array(this.length);\n    for (var i = 0; i < this.length; i++) {\n      this.words[i] = 0;\n    }\n\n    var j, w;\n    var off = 0;\n    if (endian === 'be') {\n      for (i = number.length - 1, j = 0; i >= 0; i -= 3) {\n        w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);\n        this.words[j] |= (w << off) & 0x3ffffff;\n        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n        off += 24;\n        if (off >= 26) {\n          off -= 26;\n          j++;\n        }\n      }\n    } else if (endian === 'le') {\n      for (i = 0, j = 0; i < number.length; i += 3) {\n        w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);\n        this.words[j] |= (w << off) & 0x3ffffff;\n        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;\n        off += 24;\n        if (off >= 26) {\n          off -= 26;\n          j++;\n        }\n      }\n    }\n    return this.strip();\n  };\n\n  function parseHex (str, start, end) {\n    var r = 0;\n    var len = Math.min(str.length, end);\n    for (var i = start; i < len; i++) {\n      var c = str.charCodeAt(i) - 48;\n\n      r <<= 4;\n\n      // 'a' - 'f'\n      if (c >= 49 && c <= 54) {\n        r |= c - 49 + 0xa;\n\n      // 'A' - 'F'\n      } else if (c >= 17 && c <= 22) {\n        r |= c - 17 + 0xa;\n\n      // '0' - '9'\n      } else {\n        r |= c & 0xf;\n      }\n    }\n    return r;\n  }\n\n  BN.prototype._parseHex = function _parseHex (number, start) {\n    // Create possibly bigger array to ensure that it fits the number\n    this.length = Math.ceil((number.length - start) / 6);\n    this.words = new Array(this.length);\n    for (var i = 0; i < this.length; i++) {\n      this.words[i] = 0;\n    }\n\n    var j, w;\n    // Scan 24-bit chunks and add them to the number\n    var off = 0;\n    for (i = number.length - 6, j = 0; i >= start; i -= 6) {\n      w = parseHex(number, i, i + 6);\n      this.words[j] |= (w << off) & 0x3ffffff;\n      // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb\n      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;\n      off += 24;\n      if (off >= 26) {\n        off -= 26;\n        j++;\n      }\n    }\n    if (i + 6 !== start) {\n      w = parseHex(number, start, i + 6);\n      this.words[j] |= (w << off) & 0x3ffffff;\n      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;\n    }\n    this.strip();\n  };\n\n  function parseBase (str, start, end, mul) {\n    var r = 0;\n    var len = Math.min(str.length, end);\n    for (var i = start; i < len; i++) {\n      var c = str.charCodeAt(i) - 48;\n\n      r *= mul;\n\n      // 'a'\n      if (c >= 49) {\n        r += c - 49 + 0xa;\n\n      // 'A'\n      } else if (c >= 17) {\n        r += c - 17 + 0xa;\n\n      // '0' - '9'\n      } else {\n        r += c;\n      }\n    }\n    return r;\n  }\n\n  BN.prototype._parseBase = function _parseBase (number, base, start) {\n    // Initialize as zero\n    this.words = [ 0 ];\n    this.length = 1;\n\n    // Find length of limb in base\n    for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {\n      limbLen++;\n    }\n    limbLen--;\n    limbPow = (limbPow / base) | 0;\n\n    var total = number.length - start;\n    var mod = total % limbLen;\n    var end = Math.min(total, total - mod) + start;\n\n    var word = 0;\n    for (var i = start; i < end; i += limbLen) {\n      word = parseBase(number, i, i + limbLen, base);\n\n      this.imuln(limbPow);\n      if (this.words[0] + word < 0x4000000) {\n        this.words[0] += word;\n      } else {\n        this._iaddn(word);\n      }\n    }\n\n    if (mod !== 0) {\n      var pow = 1;\n      word = parseBase(number, i, number.length, base);\n\n      for (i = 0; i < mod; i++) {\n        pow *= base;\n      }\n\n      this.imuln(pow);\n      if (this.words[0] + word < 0x4000000) {\n        this.words[0] += word;\n      } else {\n        this._iaddn(word);\n      }\n    }\n  };\n\n  BN.prototype.copy = function copy (dest) {\n    dest.words = new Array(this.length);\n    for (var i = 0; i < this.length; i++) {\n      dest.words[i] = this.words[i];\n    }\n    dest.length = this.length;\n    dest.negative = this.negative;\n    dest.red = this.red;\n  };\n\n  BN.prototype.clone = function clone () {\n    var r = new BN(null);\n    this.copy(r);\n    return r;\n  };\n\n  BN.prototype._expand = function _expand (size) {\n    while (this.length < size) {\n      this.words[this.length++] = 0;\n    }\n    return this;\n  };\n\n  // Remove leading `0` from `this`\n  BN.prototype.strip = function strip () {\n    while (this.length > 1 && this.words[this.length - 1] === 0) {\n      this.length--;\n    }\n    return this._normSign();\n  };\n\n  BN.prototype._normSign = function _normSign () {\n    // -0 = 0\n    if (this.length === 1 && this.words[0] === 0) {\n      this.negative = 0;\n    }\n    return this;\n  };\n\n  BN.prototype.inspect = function inspect () {\n    return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';\n  };\n\n  /*\n\n  var zeros = [];\n  var groupSizes = [];\n  var groupBases = [];\n\n  var s = '';\n  var i = -1;\n  while (++i < BN.wordSize) {\n    zeros[i] = s;\n    s += '0';\n  }\n  groupSizes[0] = 0;\n  groupSizes[1] = 0;\n  groupBases[0] = 0;\n  groupBases[1] = 0;\n  var base = 2 - 1;\n  while (++base < 36 + 1) {\n    var groupSize = 0;\n    var groupBase = 1;\n    while (groupBase < (1 << BN.wordSize) / base) {\n      groupBase *= base;\n      groupSize += 1;\n    }\n    groupSizes[base] = groupSize;\n    groupBases[base] = groupBase;\n  }\n\n  */\n\n  var zeros = [\n    '',\n    '0',\n    '00',\n    '000',\n    '0000',\n    '00000',\n    '000000',\n    '0000000',\n    '00000000',\n    '000000000',\n    '0000000000',\n    '00000000000',\n    '000000000000',\n    '0000000000000',\n    '00000000000000',\n    '000000000000000',\n    '0000000000000000',\n    '00000000000000000',\n    '000000000000000000',\n    '0000000000000000000',\n    '00000000000000000000',\n    '000000000000000000000',\n    '0000000000000000000000',\n    '00000000000000000000000',\n    '000000000000000000000000',\n    '0000000000000000000000000'\n  ];\n\n  var groupSizes = [\n    0, 0,\n    25, 16, 12, 11, 10, 9, 8,\n    8, 7, 7, 7, 7, 6, 6,\n    6, 6, 6, 6, 6, 5, 5,\n    5, 5, 5, 5, 5, 5, 5,\n    5, 5, 5, 5, 5, 5, 5\n  ];\n\n  var groupBases = [\n    0, 0,\n    33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,\n    43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,\n    16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,\n    6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,\n    24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176\n  ];\n\n  BN.prototype.toString = function toString (base, padding) {\n    base = base || 10;\n    padding = padding | 0 || 1;\n\n    var out;\n    if (base === 16 || base === 'hex') {\n      out = '';\n      var off = 0;\n      var carry = 0;\n      for (var i = 0; i < this.length; i++) {\n        var w = this.words[i];\n        var word = (((w << off) | carry) & 0xffffff).toString(16);\n        carry = (w >>> (24 - off)) & 0xffffff;\n        if (carry !== 0 || i !== this.length - 1) {\n          out = zeros[6 - word.length] + word + out;\n        } else {\n          out = word + out;\n        }\n        off += 2;\n        if (off >= 26) {\n          off -= 26;\n          i--;\n        }\n      }\n      if (carry !== 0) {\n        out = carry.toString(16) + out;\n      }\n      while (out.length % padding !== 0) {\n        out = '0' + out;\n      }\n      if (this.negative !== 0) {\n        out = '-' + out;\n      }\n      return out;\n    }\n\n    if (base === (base | 0) && base >= 2 && base <= 36) {\n      // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));\n      var groupSize = groupSizes[base];\n      // var groupBase = Math.pow(base, groupSize);\n      var groupBase = groupBases[base];\n      out = '';\n      var c = this.clone();\n      c.negative = 0;\n      while (!c.isZero()) {\n        var r = c.modn(groupBase).toString(base);\n        c = c.idivn(groupBase);\n\n        if (!c.isZero()) {\n          out = zeros[groupSize - r.length] + r + out;\n        } else {\n          out = r + out;\n        }\n      }\n      if (this.isZero()) {\n        out = '0' + out;\n      }\n      while (out.length % padding !== 0) {\n        out = '0' + out;\n      }\n      if (this.negative !== 0) {\n        out = '-' + out;\n      }\n      return out;\n    }\n\n    assert(false, 'Base should be between 2 and 36');\n  };\n\n  BN.prototype.toNumber = function toNumber () {\n    var ret = this.words[0];\n    if (this.length === 2) {\n      ret += this.words[1] * 0x4000000;\n    } else if (this.length === 3 && this.words[2] === 0x01) {\n      // NOTE: at this stage it is known that the top bit is set\n      ret += 0x10000000000000 + (this.words[1] * 0x4000000);\n    } else if (this.length > 2) {\n      assert(false, 'Number can only safely store up to 53 bits');\n    }\n    return (this.negative !== 0) ? -ret : ret;\n  };\n\n  BN.prototype.toJSON = function toJSON () {\n    return this.toString(16);\n  };\n\n  BN.prototype.toBuffer = function toBuffer (endian, length) {\n    assert(typeof Buffer !== 'undefined');\n    return this.toArrayLike(Buffer, endian, length);\n  };\n\n  BN.prototype.toArray = function toArray (endian, length) {\n    return this.toArrayLike(Array, endian, length);\n  };\n\n  BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {\n    var byteLength = this.byteLength();\n    var reqLength = length || Math.max(1, byteLength);\n    assert(byteLength <= reqLength, 'byte array longer than desired length');\n    assert(reqLength > 0, 'Requested array length <= 0');\n\n    this.strip();\n    var littleEndian = endian === 'le';\n    var res = new ArrayType(reqLength);\n\n    var b, i;\n    var q = this.clone();\n    if (!littleEndian) {\n      // Assume big-endian\n      for (i = 0; i < reqLength - byteLength; i++) {\n        res[i] = 0;\n      }\n\n      for (i = 0; !q.isZero(); i++) {\n        b = q.andln(0xff);\n        q.iushrn(8);\n\n        res[reqLength - i - 1] = b;\n      }\n    } else {\n      for (i = 0; !q.isZero(); i++) {\n        b = q.andln(0xff);\n        q.iushrn(8);\n\n        res[i] = b;\n      }\n\n      for (; i < reqLength; i++) {\n        res[i] = 0;\n      }\n    }\n\n    return res;\n  };\n\n  if (Math.clz32) {\n    BN.prototype._countBits = function _countBits (w) {\n      return 32 - Math.clz32(w);\n    };\n  } else {\n    BN.prototype._countBits = function _countBits (w) {\n      var t = w;\n      var r = 0;\n      if (t >= 0x1000) {\n        r += 13;\n        t >>>= 13;\n      }\n      if (t >= 0x40) {\n        r += 7;\n        t >>>= 7;\n      }\n      if (t >= 0x8) {\n        r += 4;\n        t >>>= 4;\n      }\n      if (t >= 0x02) {\n        r += 2;\n        t >>>= 2;\n      }\n      return r + t;\n    };\n  }\n\n  BN.prototype._zeroBits = function _zeroBits (w) {\n    // Short-cut\n    if (w === 0) return 26;\n\n    var t = w;\n    var r = 0;\n    if ((t & 0x1fff) === 0) {\n      r += 13;\n      t >>>= 13;\n    }\n    if ((t & 0x7f) === 0) {\n      r += 7;\n      t >>>= 7;\n    }\n    if ((t & 0xf) === 0) {\n      r += 4;\n      t >>>= 4;\n    }\n    if ((t & 0x3) === 0) {\n      r += 2;\n      t >>>= 2;\n    }\n    if ((t & 0x1) === 0) {\n      r++;\n    }\n    return r;\n  };\n\n  // Return number of used bits in a BN\n  BN.prototype.bitLength = function bitLength () {\n    var w = this.words[this.length - 1];\n    var hi = this._countBits(w);\n    return (this.length - 1) * 26 + hi;\n  };\n\n  function toBitArray (num) {\n    var w = new Array(num.bitLength());\n\n    for (var bit = 0; bit < w.length; bit++) {\n      var off = (bit / 26) | 0;\n      var wbit = bit % 26;\n\n      w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;\n    }\n\n    return w;\n  }\n\n  // Number of trailing zero bits\n  BN.prototype.zeroBits = function zeroBits () {\n    if (this.isZero()) return 0;\n\n    var r = 0;\n    for (var i = 0; i < this.length; i++) {\n      var b = this._zeroBits(this.words[i]);\n      r += b;\n      if (b !== 26) break;\n    }\n    return r;\n  };\n\n  BN.prototype.byteLength = function byteLength () {\n    return Math.ceil(this.bitLength() / 8);\n  };\n\n  BN.prototype.toTwos = function toTwos (width) {\n    if (this.negative !== 0) {\n      return this.abs().inotn(width).iaddn(1);\n    }\n    return this.clone();\n  };\n\n  BN.prototype.fromTwos = function fromTwos (width) {\n    if (this.testn(width - 1)) {\n      return this.notn(width).iaddn(1).ineg();\n    }\n    return this.clone();\n  };\n\n  BN.prototype.isNeg = function isNeg () {\n    return this.negative !== 0;\n  };\n\n  // Return negative clone of `this`\n  BN.prototype.neg = function neg () {\n    return this.clone().ineg();\n  };\n\n  BN.prototype.ineg = function ineg () {\n    if (!this.isZero()) {\n      this.negative ^= 1;\n    }\n\n    return this;\n  };\n\n  // Or `num` with `this` in-place\n  BN.prototype.iuor = function iuor (num) {\n    while (this.length < num.length) {\n      this.words[this.length++] = 0;\n    }\n\n    for (var i = 0; i < num.length; i++) {\n      this.words[i] = this.words[i] | num.words[i];\n    }\n\n    return this.strip();\n  };\n\n  BN.prototype.ior = function ior (num) {\n    assert((this.negative | num.negative) === 0);\n    return this.iuor(num);\n  };\n\n  // Or `num` with `this`\n  BN.prototype.or = function or (num) {\n    if (this.length > num.length) return this.clone().ior(num);\n    return num.clone().ior(this);\n  };\n\n  BN.prototype.uor = function uor (num) {\n    if (this.length > num.length) return this.clone().iuor(num);\n    return num.clone().iuor(this);\n  };\n\n  // And `num` with `this` in-place\n  BN.prototype.iuand = function iuand (num) {\n    // b = min-length(num, this)\n    var b;\n    if (this.length > num.length) {\n      b = num;\n    } else {\n      b = this;\n    }\n\n    for (var i = 0; i < b.length; i++) {\n      this.words[i] = this.words[i] & num.words[i];\n    }\n\n    this.length = b.length;\n\n    return this.strip();\n  };\n\n  BN.prototype.iand = function iand (num) {\n    assert((this.negative | num.negative) === 0);\n    return this.iuand(num);\n  };\n\n  // And `num` with `this`\n  BN.prototype.and = function and (num) {\n    if (this.length > num.length) return this.clone().iand(num);\n    return num.clone().iand(this);\n  };\n\n  BN.prototype.uand = function uand (num) {\n    if (this.length > num.length) return this.clone().iuand(num);\n    return num.clone().iuand(this);\n  };\n\n  // Xor `num` with `this` in-place\n  BN.prototype.iuxor = function iuxor (num) {\n    // a.length > b.length\n    var a;\n    var b;\n    if (this.length > num.length) {\n      a = this;\n      b = num;\n    } else {\n      a = num;\n      b = this;\n    }\n\n    for (var i = 0; i < b.length; i++) {\n      this.words[i] = a.words[i] ^ b.words[i];\n    }\n\n    if (this !== a) {\n      for (; i < a.length; i++) {\n        this.words[i] = a.words[i];\n      }\n    }\n\n    this.length = a.length;\n\n    return this.strip();\n  };\n\n  BN.prototype.ixor = function ixor (num) {\n    assert((this.negative | num.negative) === 0);\n    return this.iuxor(num);\n  };\n\n  // Xor `num` with `this`\n  BN.prototype.xor = function xor (num) {\n    if (this.length > num.length) return this.clone().ixor(num);\n    return num.clone().ixor(this);\n  };\n\n  BN.prototype.uxor = function uxor (num) {\n    if (this.length > num.length) return this.clone().iuxor(num);\n    return num.clone().iuxor(this);\n  };\n\n  // Not ``this`` with ``width`` bitwidth\n  BN.prototype.inotn = function inotn (width) {\n    assert(typeof width === 'number' && width >= 0);\n\n    var bytesNeeded = Math.ceil(width / 26) | 0;\n    var bitsLeft = width % 26;\n\n    // Extend the buffer with leading zeroes\n    this._expand(bytesNeeded);\n\n    if (bitsLeft > 0) {\n      bytesNeeded--;\n    }\n\n    // Handle complete words\n    for (var i = 0; i < bytesNeeded; i++) {\n      this.words[i] = ~this.words[i] & 0x3ffffff;\n    }\n\n    // Handle the residue\n    if (bitsLeft > 0) {\n      this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));\n    }\n\n    // And remove leading zeroes\n    return this.strip();\n  };\n\n  BN.prototype.notn = function notn (width) {\n    return this.clone().inotn(width);\n  };\n\n  // Set `bit` of `this`\n  BN.prototype.setn = function setn (bit, val) {\n    assert(typeof bit === 'number' && bit >= 0);\n\n    var off = (bit / 26) | 0;\n    var wbit = bit % 26;\n\n    this._expand(off + 1);\n\n    if (val) {\n      this.words[off] = this.words[off] | (1 << wbit);\n    } else {\n      this.words[off] = this.words[off] & ~(1 << wbit);\n    }\n\n    return this.strip();\n  };\n\n  // Add `num` to `this` in-place\n  BN.prototype.iadd = function iadd (num) {\n    var r;\n\n    // negative + positive\n    if (this.negative !== 0 && num.negative === 0) {\n      this.negative = 0;\n      r = this.isub(num);\n      this.negative ^= 1;\n      return this._normSign();\n\n    // positive + negative\n    } else if (this.negative === 0 && num.negative !== 0) {\n      num.negative = 0;\n      r = this.isub(num);\n      num.negative = 1;\n      return r._normSign();\n    }\n\n    // a.length > b.length\n    var a, b;\n    if (this.length > num.length) {\n      a = this;\n      b = num;\n    } else {\n      a = num;\n      b = this;\n    }\n\n    var carry = 0;\n    for (var i = 0; i < b.length; i++) {\n      r = (a.words[i] | 0) + (b.words[i] | 0) + carry;\n      this.words[i] = r & 0x3ffffff;\n      carry = r >>> 26;\n    }\n    for (; carry !== 0 && i < a.length; i++) {\n      r = (a.words[i] | 0) + carry;\n      this.words[i] = r & 0x3ffffff;\n      carry = r >>> 26;\n    }\n\n    this.length = a.length;\n    if (carry !== 0) {\n      this.words[this.length] = carry;\n      this.length++;\n    // Copy the rest of the words\n    } else if (a !== this) {\n      for (; i < a.length; i++) {\n        this.words[i] = a.words[i];\n      }\n    }\n\n    return this;\n  };\n\n  // Add `num` to `this`\n  BN.prototype.add = function add (num) {\n    var res;\n    if (num.negative !== 0 && this.negative === 0) {\n      num.negative = 0;\n      res = this.sub(num);\n      num.negative ^= 1;\n      return res;\n    } else if (num.negative === 0 && this.negative !== 0) {\n      this.negative = 0;\n      res = num.sub(this);\n      this.negative = 1;\n      return res;\n    }\n\n    if (this.length > num.length) return this.clone().iadd(num);\n\n    return num.clone().iadd(this);\n  };\n\n  // Subtract `num` from `this` in-place\n  BN.prototype.isub = function isub (num) {\n    // this - (-num) = this + num\n    if (num.negative !== 0) {\n      num.negative = 0;\n      var r = this.iadd(num);\n      num.negative = 1;\n      return r._normSign();\n\n    // -this - num = -(this + num)\n    } else if (this.negative !== 0) {\n      this.negative = 0;\n      this.iadd(num);\n      this.negative = 1;\n      return this._normSign();\n    }\n\n    // At this point both numbers are positive\n    var cmp = this.cmp(num);\n\n    // Optimization - zeroify\n    if (cmp === 0) {\n      this.negative = 0;\n      this.length = 1;\n      this.words[0] = 0;\n      return this;\n    }\n\n    // a > b\n    var a, b;\n    if (cmp > 0) {\n      a = this;\n      b = num;\n    } else {\n      a = num;\n      b = this;\n    }\n\n    var carry = 0;\n    for (var i = 0; i < b.length; i++) {\n      r = (a.words[i] | 0) - (b.words[i] | 0) + carry;\n      carry = r >> 26;\n      this.words[i] = r & 0x3ffffff;\n    }\n    for (; carry !== 0 && i < a.length; i++) {\n      r = (a.words[i] | 0) + carry;\n      carry = r >> 26;\n      this.words[i] = r & 0x3ffffff;\n    }\n\n    // Copy rest of the words\n    if (carry === 0 && i < a.length && a !== this) {\n      for (; i < a.length; i++) {\n        this.words[i] = a.words[i];\n      }\n    }\n\n    this.length = Math.max(this.length, i);\n\n    if (a !== this) {\n      this.negative = 1;\n    }\n\n    return this.strip();\n  };\n\n  // Subtract `num` from `this`\n  BN.prototype.sub = function sub (num) {\n    return this.clone().isub(num);\n  };\n\n  function smallMulTo (self, num, out) {\n    out.negative = num.negative ^ self.negative;\n    var len = (self.length + num.length) | 0;\n    out.length = len;\n    len = (len - 1) | 0;\n\n    // Peel one iteration (compiler can't do it, because of code complexity)\n    var a = self.words[0] | 0;\n    var b = num.words[0] | 0;\n    var r = a * b;\n\n    var lo = r & 0x3ffffff;\n    var carry = (r / 0x4000000) | 0;\n    out.words[0] = lo;\n\n    for (var k = 1; k < len; k++) {\n      // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n      // note that ncarry could be >= 0x3ffffff\n      var ncarry = carry >>> 26;\n      var rword = carry & 0x3ffffff;\n      var maxJ = Math.min(k, num.length - 1);\n      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n        var i = (k - j) | 0;\n        a = self.words[i] | 0;\n        b = num.words[j] | 0;\n        r = a * b + rword;\n        ncarry += (r / 0x4000000) | 0;\n        rword = r & 0x3ffffff;\n      }\n      out.words[k] = rword | 0;\n      carry = ncarry | 0;\n    }\n    if (carry !== 0) {\n      out.words[k] = carry | 0;\n    } else {\n      out.length--;\n    }\n\n    return out.strip();\n  }\n\n  // TODO(indutny): it may be reasonable to omit it for users who don't need\n  // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit\n  // multiplication (like elliptic secp256k1).\n  var comb10MulTo = function comb10MulTo (self, num, out) {\n    var a = self.words;\n    var b = num.words;\n    var o = out.words;\n    var c = 0;\n    var lo;\n    var mid;\n    var hi;\n    var a0 = a[0] | 0;\n    var al0 = a0 & 0x1fff;\n    var ah0 = a0 >>> 13;\n    var a1 = a[1] | 0;\n    var al1 = a1 & 0x1fff;\n    var ah1 = a1 >>> 13;\n    var a2 = a[2] | 0;\n    var al2 = a2 & 0x1fff;\n    var ah2 = a2 >>> 13;\n    var a3 = a[3] | 0;\n    var al3 = a3 & 0x1fff;\n    var ah3 = a3 >>> 13;\n    var a4 = a[4] | 0;\n    var al4 = a4 & 0x1fff;\n    var ah4 = a4 >>> 13;\n    var a5 = a[5] | 0;\n    var al5 = a5 & 0x1fff;\n    var ah5 = a5 >>> 13;\n    var a6 = a[6] | 0;\n    var al6 = a6 & 0x1fff;\n    var ah6 = a6 >>> 13;\n    var a7 = a[7] | 0;\n    var al7 = a7 & 0x1fff;\n    var ah7 = a7 >>> 13;\n    var a8 = a[8] | 0;\n    var al8 = a8 & 0x1fff;\n    var ah8 = a8 >>> 13;\n    var a9 = a[9] | 0;\n    var al9 = a9 & 0x1fff;\n    var ah9 = a9 >>> 13;\n    var b0 = b[0] | 0;\n    var bl0 = b0 & 0x1fff;\n    var bh0 = b0 >>> 13;\n    var b1 = b[1] | 0;\n    var bl1 = b1 & 0x1fff;\n    var bh1 = b1 >>> 13;\n    var b2 = b[2] | 0;\n    var bl2 = b2 & 0x1fff;\n    var bh2 = b2 >>> 13;\n    var b3 = b[3] | 0;\n    var bl3 = b3 & 0x1fff;\n    var bh3 = b3 >>> 13;\n    var b4 = b[4] | 0;\n    var bl4 = b4 & 0x1fff;\n    var bh4 = b4 >>> 13;\n    var b5 = b[5] | 0;\n    var bl5 = b5 & 0x1fff;\n    var bh5 = b5 >>> 13;\n    var b6 = b[6] | 0;\n    var bl6 = b6 & 0x1fff;\n    var bh6 = b6 >>> 13;\n    var b7 = b[7] | 0;\n    var bl7 = b7 & 0x1fff;\n    var bh7 = b7 >>> 13;\n    var b8 = b[8] | 0;\n    var bl8 = b8 & 0x1fff;\n    var bh8 = b8 >>> 13;\n    var b9 = b[9] | 0;\n    var bl9 = b9 & 0x1fff;\n    var bh9 = b9 >>> 13;\n\n    out.negative = self.negative ^ num.negative;\n    out.length = 19;\n    /* k = 0 */\n    lo = Math.imul(al0, bl0);\n    mid = Math.imul(al0, bh0);\n    mid = (mid + Math.imul(ah0, bl0)) | 0;\n    hi = Math.imul(ah0, bh0);\n    var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;\n    w0 &= 0x3ffffff;\n    /* k = 1 */\n    lo = Math.imul(al1, bl0);\n    mid = Math.imul(al1, bh0);\n    mid = (mid + Math.imul(ah1, bl0)) | 0;\n    hi = Math.imul(ah1, bh0);\n    lo = (lo + Math.imul(al0, bl1)) | 0;\n    mid = (mid + Math.imul(al0, bh1)) | 0;\n    mid = (mid + Math.imul(ah0, bl1)) | 0;\n    hi = (hi + Math.imul(ah0, bh1)) | 0;\n    var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;\n    w1 &= 0x3ffffff;\n    /* k = 2 */\n    lo = Math.imul(al2, bl0);\n    mid = Math.imul(al2, bh0);\n    mid = (mid + Math.imul(ah2, bl0)) | 0;\n    hi = Math.imul(ah2, bh0);\n    lo = (lo + Math.imul(al1, bl1)) | 0;\n    mid = (mid + Math.imul(al1, bh1)) | 0;\n    mid = (mid + Math.imul(ah1, bl1)) | 0;\n    hi = (hi + Math.imul(ah1, bh1)) | 0;\n    lo = (lo + Math.imul(al0, bl2)) | 0;\n    mid = (mid + Math.imul(al0, bh2)) | 0;\n    mid = (mid + Math.imul(ah0, bl2)) | 0;\n    hi = (hi + Math.imul(ah0, bh2)) | 0;\n    var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;\n    w2 &= 0x3ffffff;\n    /* k = 3 */\n    lo = Math.imul(al3, bl0);\n    mid = Math.imul(al3, bh0);\n    mid = (mid + Math.imul(ah3, bl0)) | 0;\n    hi = Math.imul(ah3, bh0);\n    lo = (lo + Math.imul(al2, bl1)) | 0;\n    mid = (mid + Math.imul(al2, bh1)) | 0;\n    mid = (mid + Math.imul(ah2, bl1)) | 0;\n    hi = (hi + Math.imul(ah2, bh1)) | 0;\n    lo = (lo + Math.imul(al1, bl2)) | 0;\n    mid = (mid + Math.imul(al1, bh2)) | 0;\n    mid = (mid + Math.imul(ah1, bl2)) | 0;\n    hi = (hi + Math.imul(ah1, bh2)) | 0;\n    lo = (lo + Math.imul(al0, bl3)) | 0;\n    mid = (mid + Math.imul(al0, bh3)) | 0;\n    mid = (mid + Math.imul(ah0, bl3)) | 0;\n    hi = (hi + Math.imul(ah0, bh3)) | 0;\n    var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;\n    w3 &= 0x3ffffff;\n    /* k = 4 */\n    lo = Math.imul(al4, bl0);\n    mid = Math.imul(al4, bh0);\n    mid = (mid + Math.imul(ah4, bl0)) | 0;\n    hi = Math.imul(ah4, bh0);\n    lo = (lo + Math.imul(al3, bl1)) | 0;\n    mid = (mid + Math.imul(al3, bh1)) | 0;\n    mid = (mid + Math.imul(ah3, bl1)) | 0;\n    hi = (hi + Math.imul(ah3, bh1)) | 0;\n    lo = (lo + Math.imul(al2, bl2)) | 0;\n    mid = (mid + Math.imul(al2, bh2)) | 0;\n    mid = (mid + Math.imul(ah2, bl2)) | 0;\n    hi = (hi + Math.imul(ah2, bh2)) | 0;\n    lo = (lo + Math.imul(al1, bl3)) | 0;\n    mid = (mid + Math.imul(al1, bh3)) | 0;\n    mid = (mid + Math.imul(ah1, bl3)) | 0;\n    hi = (hi + Math.imul(ah1, bh3)) | 0;\n    lo = (lo + Math.imul(al0, bl4)) | 0;\n    mid = (mid + Math.imul(al0, bh4)) | 0;\n    mid = (mid + Math.imul(ah0, bl4)) | 0;\n    hi = (hi + Math.imul(ah0, bh4)) | 0;\n    var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;\n    w4 &= 0x3ffffff;\n    /* k = 5 */\n    lo = Math.imul(al5, bl0);\n    mid = Math.imul(al5, bh0);\n    mid = (mid + Math.imul(ah5, bl0)) | 0;\n    hi = Math.imul(ah5, bh0);\n    lo = (lo + Math.imul(al4, bl1)) | 0;\n    mid = (mid + Math.imul(al4, bh1)) | 0;\n    mid = (mid + Math.imul(ah4, bl1)) | 0;\n    hi = (hi + Math.imul(ah4, bh1)) | 0;\n    lo = (lo + Math.imul(al3, bl2)) | 0;\n    mid = (mid + Math.imul(al3, bh2)) | 0;\n    mid = (mid + Math.imul(ah3, bl2)) | 0;\n    hi = (hi + Math.imul(ah3, bh2)) | 0;\n    lo = (lo + Math.imul(al2, bl3)) | 0;\n    mid = (mid + Math.imul(al2, bh3)) | 0;\n    mid = (mid + Math.imul(ah2, bl3)) | 0;\n    hi = (hi + Math.imul(ah2, bh3)) | 0;\n    lo = (lo + Math.imul(al1, bl4)) | 0;\n    mid = (mid + Math.imul(al1, bh4)) | 0;\n    mid = (mid + Math.imul(ah1, bl4)) | 0;\n    hi = (hi + Math.imul(ah1, bh4)) | 0;\n    lo = (lo + Math.imul(al0, bl5)) | 0;\n    mid = (mid + Math.imul(al0, bh5)) | 0;\n    mid = (mid + Math.imul(ah0, bl5)) | 0;\n    hi = (hi + Math.imul(ah0, bh5)) | 0;\n    var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;\n    w5 &= 0x3ffffff;\n    /* k = 6 */\n    lo = Math.imul(al6, bl0);\n    mid = Math.imul(al6, bh0);\n    mid = (mid + Math.imul(ah6, bl0)) | 0;\n    hi = Math.imul(ah6, bh0);\n    lo = (lo + Math.imul(al5, bl1)) | 0;\n    mid = (mid + Math.imul(al5, bh1)) | 0;\n    mid = (mid + Math.imul(ah5, bl1)) | 0;\n    hi = (hi + Math.imul(ah5, bh1)) | 0;\n    lo = (lo + Math.imul(al4, bl2)) | 0;\n    mid = (mid + Math.imul(al4, bh2)) | 0;\n    mid = (mid + Math.imul(ah4, bl2)) | 0;\n    hi = (hi + Math.imul(ah4, bh2)) | 0;\n    lo = (lo + Math.imul(al3, bl3)) | 0;\n    mid = (mid + Math.imul(al3, bh3)) | 0;\n    mid = (mid + Math.imul(ah3, bl3)) | 0;\n    hi = (hi + Math.imul(ah3, bh3)) | 0;\n    lo = (lo + Math.imul(al2, bl4)) | 0;\n    mid = (mid + Math.imul(al2, bh4)) | 0;\n    mid = (mid + Math.imul(ah2, bl4)) | 0;\n    hi = (hi + Math.imul(ah2, bh4)) | 0;\n    lo = (lo + Math.imul(al1, bl5)) | 0;\n    mid = (mid + Math.imul(al1, bh5)) | 0;\n    mid = (mid + Math.imul(ah1, bl5)) | 0;\n    hi = (hi + Math.imul(ah1, bh5)) | 0;\n    lo = (lo + Math.imul(al0, bl6)) | 0;\n    mid = (mid + Math.imul(al0, bh6)) | 0;\n    mid = (mid + Math.imul(ah0, bl6)) | 0;\n    hi = (hi + Math.imul(ah0, bh6)) | 0;\n    var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;\n    w6 &= 0x3ffffff;\n    /* k = 7 */\n    lo = Math.imul(al7, bl0);\n    mid = Math.imul(al7, bh0);\n    mid = (mid + Math.imul(ah7, bl0)) | 0;\n    hi = Math.imul(ah7, bh0);\n    lo = (lo + Math.imul(al6, bl1)) | 0;\n    mid = (mid + Math.imul(al6, bh1)) | 0;\n    mid = (mid + Math.imul(ah6, bl1)) | 0;\n    hi = (hi + Math.imul(ah6, bh1)) | 0;\n    lo = (lo + Math.imul(al5, bl2)) | 0;\n    mid = (mid + Math.imul(al5, bh2)) | 0;\n    mid = (mid + Math.imul(ah5, bl2)) | 0;\n    hi = (hi + Math.imul(ah5, bh2)) | 0;\n    lo = (lo + Math.imul(al4, bl3)) | 0;\n    mid = (mid + Math.imul(al4, bh3)) | 0;\n    mid = (mid + Math.imul(ah4, bl3)) | 0;\n    hi = (hi + Math.imul(ah4, bh3)) | 0;\n    lo = (lo + Math.imul(al3, bl4)) | 0;\n    mid = (mid + Math.imul(al3, bh4)) | 0;\n    mid = (mid + Math.imul(ah3, bl4)) | 0;\n    hi = (hi + Math.imul(ah3, bh4)) | 0;\n    lo = (lo + Math.imul(al2, bl5)) | 0;\n    mid = (mid + Math.imul(al2, bh5)) | 0;\n    mid = (mid + Math.imul(ah2, bl5)) | 0;\n    hi = (hi + Math.imul(ah2, bh5)) | 0;\n    lo = (lo + Math.imul(al1, bl6)) | 0;\n    mid = (mid + Math.imul(al1, bh6)) | 0;\n    mid = (mid + Math.imul(ah1, bl6)) | 0;\n    hi = (hi + Math.imul(ah1, bh6)) | 0;\n    lo = (lo + Math.imul(al0, bl7)) | 0;\n    mid = (mid + Math.imul(al0, bh7)) | 0;\n    mid = (mid + Math.imul(ah0, bl7)) | 0;\n    hi = (hi + Math.imul(ah0, bh7)) | 0;\n    var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;\n    w7 &= 0x3ffffff;\n    /* k = 8 */\n    lo = Math.imul(al8, bl0);\n    mid = Math.imul(al8, bh0);\n    mid = (mid + Math.imul(ah8, bl0)) | 0;\n    hi = Math.imul(ah8, bh0);\n    lo = (lo + Math.imul(al7, bl1)) | 0;\n    mid = (mid + Math.imul(al7, bh1)) | 0;\n    mid = (mid + Math.imul(ah7, bl1)) | 0;\n    hi = (hi + Math.imul(ah7, bh1)) | 0;\n    lo = (lo + Math.imul(al6, bl2)) | 0;\n    mid = (mid + Math.imul(al6, bh2)) | 0;\n    mid = (mid + Math.imul(ah6, bl2)) | 0;\n    hi = (hi + Math.imul(ah6, bh2)) | 0;\n    lo = (lo + Math.imul(al5, bl3)) | 0;\n    mid = (mid + Math.imul(al5, bh3)) | 0;\n    mid = (mid + Math.imul(ah5, bl3)) | 0;\n    hi = (hi + Math.imul(ah5, bh3)) | 0;\n    lo = (lo + Math.imul(al4, bl4)) | 0;\n    mid = (mid + Math.imul(al4, bh4)) | 0;\n    mid = (mid + Math.imul(ah4, bl4)) | 0;\n    hi = (hi + Math.imul(ah4, bh4)) | 0;\n    lo = (lo + Math.imul(al3, bl5)) | 0;\n    mid = (mid + Math.imul(al3, bh5)) | 0;\n    mid = (mid + Math.imul(ah3, bl5)) | 0;\n    hi = (hi + Math.imul(ah3, bh5)) | 0;\n    lo = (lo + Math.imul(al2, bl6)) | 0;\n    mid = (mid + Math.imul(al2, bh6)) | 0;\n    mid = (mid + Math.imul(ah2, bl6)) | 0;\n    hi = (hi + Math.imul(ah2, bh6)) | 0;\n    lo = (lo + Math.imul(al1, bl7)) | 0;\n    mid = (mid + Math.imul(al1, bh7)) | 0;\n    mid = (mid + Math.imul(ah1, bl7)) | 0;\n    hi = (hi + Math.imul(ah1, bh7)) | 0;\n    lo = (lo + Math.imul(al0, bl8)) | 0;\n    mid = (mid + Math.imul(al0, bh8)) | 0;\n    mid = (mid + Math.imul(ah0, bl8)) | 0;\n    hi = (hi + Math.imul(ah0, bh8)) | 0;\n    var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;\n    w8 &= 0x3ffffff;\n    /* k = 9 */\n    lo = Math.imul(al9, bl0);\n    mid = Math.imul(al9, bh0);\n    mid = (mid + Math.imul(ah9, bl0)) | 0;\n    hi = Math.imul(ah9, bh0);\n    lo = (lo + Math.imul(al8, bl1)) | 0;\n    mid = (mid + Math.imul(al8, bh1)) | 0;\n    mid = (mid + Math.imul(ah8, bl1)) | 0;\n    hi = (hi + Math.imul(ah8, bh1)) | 0;\n    lo = (lo + Math.imul(al7, bl2)) | 0;\n    mid = (mid + Math.imul(al7, bh2)) | 0;\n    mid = (mid + Math.imul(ah7, bl2)) | 0;\n    hi = (hi + Math.imul(ah7, bh2)) | 0;\n    lo = (lo + Math.imul(al6, bl3)) | 0;\n    mid = (mid + Math.imul(al6, bh3)) | 0;\n    mid = (mid + Math.imul(ah6, bl3)) | 0;\n    hi = (hi + Math.imul(ah6, bh3)) | 0;\n    lo = (lo + Math.imul(al5, bl4)) | 0;\n    mid = (mid + Math.imul(al5, bh4)) | 0;\n    mid = (mid + Math.imul(ah5, bl4)) | 0;\n    hi = (hi + Math.imul(ah5, bh4)) | 0;\n    lo = (lo + Math.imul(al4, bl5)) | 0;\n    mid = (mid + Math.imul(al4, bh5)) | 0;\n    mid = (mid + Math.imul(ah4, bl5)) | 0;\n    hi = (hi + Math.imul(ah4, bh5)) | 0;\n    lo = (lo + Math.imul(al3, bl6)) | 0;\n    mid = (mid + Math.imul(al3, bh6)) | 0;\n    mid = (mid + Math.imul(ah3, bl6)) | 0;\n    hi = (hi + Math.imul(ah3, bh6)) | 0;\n    lo = (lo + Math.imul(al2, bl7)) | 0;\n    mid = (mid + Math.imul(al2, bh7)) | 0;\n    mid = (mid + Math.imul(ah2, bl7)) | 0;\n    hi = (hi + Math.imul(ah2, bh7)) | 0;\n    lo = (lo + Math.imul(al1, bl8)) | 0;\n    mid = (mid + Math.imul(al1, bh8)) | 0;\n    mid = (mid + Math.imul(ah1, bl8)) | 0;\n    hi = (hi + Math.imul(ah1, bh8)) | 0;\n    lo = (lo + Math.imul(al0, bl9)) | 0;\n    mid = (mid + Math.imul(al0, bh9)) | 0;\n    mid = (mid + Math.imul(ah0, bl9)) | 0;\n    hi = (hi + Math.imul(ah0, bh9)) | 0;\n    var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;\n    w9 &= 0x3ffffff;\n    /* k = 10 */\n    lo = Math.imul(al9, bl1);\n    mid = Math.imul(al9, bh1);\n    mid = (mid + Math.imul(ah9, bl1)) | 0;\n    hi = Math.imul(ah9, bh1);\n    lo = (lo + Math.imul(al8, bl2)) | 0;\n    mid = (mid + Math.imul(al8, bh2)) | 0;\n    mid = (mid + Math.imul(ah8, bl2)) | 0;\n    hi = (hi + Math.imul(ah8, bh2)) | 0;\n    lo = (lo + Math.imul(al7, bl3)) | 0;\n    mid = (mid + Math.imul(al7, bh3)) | 0;\n    mid = (mid + Math.imul(ah7, bl3)) | 0;\n    hi = (hi + Math.imul(ah7, bh3)) | 0;\n    lo = (lo + Math.imul(al6, bl4)) | 0;\n    mid = (mid + Math.imul(al6, bh4)) | 0;\n    mid = (mid + Math.imul(ah6, bl4)) | 0;\n    hi = (hi + Math.imul(ah6, bh4)) | 0;\n    lo = (lo + Math.imul(al5, bl5)) | 0;\n    mid = (mid + Math.imul(al5, bh5)) | 0;\n    mid = (mid + Math.imul(ah5, bl5)) | 0;\n    hi = (hi + Math.imul(ah5, bh5)) | 0;\n    lo = (lo + Math.imul(al4, bl6)) | 0;\n    mid = (mid + Math.imul(al4, bh6)) | 0;\n    mid = (mid + Math.imul(ah4, bl6)) | 0;\n    hi = (hi + Math.imul(ah4, bh6)) | 0;\n    lo = (lo + Math.imul(al3, bl7)) | 0;\n    mid = (mid + Math.imul(al3, bh7)) | 0;\n    mid = (mid + Math.imul(ah3, bl7)) | 0;\n    hi = (hi + Math.imul(ah3, bh7)) | 0;\n    lo = (lo + Math.imul(al2, bl8)) | 0;\n    mid = (mid + Math.imul(al2, bh8)) | 0;\n    mid = (mid + Math.imul(ah2, bl8)) | 0;\n    hi = (hi + Math.imul(ah2, bh8)) | 0;\n    lo = (lo + Math.imul(al1, bl9)) | 0;\n    mid = (mid + Math.imul(al1, bh9)) | 0;\n    mid = (mid + Math.imul(ah1, bl9)) | 0;\n    hi = (hi + Math.imul(ah1, bh9)) | 0;\n    var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;\n    w10 &= 0x3ffffff;\n    /* k = 11 */\n    lo = Math.imul(al9, bl2);\n    mid = Math.imul(al9, bh2);\n    mid = (mid + Math.imul(ah9, bl2)) | 0;\n    hi = Math.imul(ah9, bh2);\n    lo = (lo + Math.imul(al8, bl3)) | 0;\n    mid = (mid + Math.imul(al8, bh3)) | 0;\n    mid = (mid + Math.imul(ah8, bl3)) | 0;\n    hi = (hi + Math.imul(ah8, bh3)) | 0;\n    lo = (lo + Math.imul(al7, bl4)) | 0;\n    mid = (mid + Math.imul(al7, bh4)) | 0;\n    mid = (mid + Math.imul(ah7, bl4)) | 0;\n    hi = (hi + Math.imul(ah7, bh4)) | 0;\n    lo = (lo + Math.imul(al6, bl5)) | 0;\n    mid = (mid + Math.imul(al6, bh5)) | 0;\n    mid = (mid + Math.imul(ah6, bl5)) | 0;\n    hi = (hi + Math.imul(ah6, bh5)) | 0;\n    lo = (lo + Math.imul(al5, bl6)) | 0;\n    mid = (mid + Math.imul(al5, bh6)) | 0;\n    mid = (mid + Math.imul(ah5, bl6)) | 0;\n    hi = (hi + Math.imul(ah5, bh6)) | 0;\n    lo = (lo + Math.imul(al4, bl7)) | 0;\n    mid = (mid + Math.imul(al4, bh7)) | 0;\n    mid = (mid + Math.imul(ah4, bl7)) | 0;\n    hi = (hi + Math.imul(ah4, bh7)) | 0;\n    lo = (lo + Math.imul(al3, bl8)) | 0;\n    mid = (mid + Math.imul(al3, bh8)) | 0;\n    mid = (mid + Math.imul(ah3, bl8)) | 0;\n    hi = (hi + Math.imul(ah3, bh8)) | 0;\n    lo = (lo + Math.imul(al2, bl9)) | 0;\n    mid = (mid + Math.imul(al2, bh9)) | 0;\n    mid = (mid + Math.imul(ah2, bl9)) | 0;\n    hi = (hi + Math.imul(ah2, bh9)) | 0;\n    var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;\n    w11 &= 0x3ffffff;\n    /* k = 12 */\n    lo = Math.imul(al9, bl3);\n    mid = Math.imul(al9, bh3);\n    mid = (mid + Math.imul(ah9, bl3)) | 0;\n    hi = Math.imul(ah9, bh3);\n    lo = (lo + Math.imul(al8, bl4)) | 0;\n    mid = (mid + Math.imul(al8, bh4)) | 0;\n    mid = (mid + Math.imul(ah8, bl4)) | 0;\n    hi = (hi + Math.imul(ah8, bh4)) | 0;\n    lo = (lo + Math.imul(al7, bl5)) | 0;\n    mid = (mid + Math.imul(al7, bh5)) | 0;\n    mid = (mid + Math.imul(ah7, bl5)) | 0;\n    hi = (hi + Math.imul(ah7, bh5)) | 0;\n    lo = (lo + Math.imul(al6, bl6)) | 0;\n    mid = (mid + Math.imul(al6, bh6)) | 0;\n    mid = (mid + Math.imul(ah6, bl6)) | 0;\n    hi = (hi + Math.imul(ah6, bh6)) | 0;\n    lo = (lo + Math.imul(al5, bl7)) | 0;\n    mid = (mid + Math.imul(al5, bh7)) | 0;\n    mid = (mid + Math.imul(ah5, bl7)) | 0;\n    hi = (hi + Math.imul(ah5, bh7)) | 0;\n    lo = (lo + Math.imul(al4, bl8)) | 0;\n    mid = (mid + Math.imul(al4, bh8)) | 0;\n    mid = (mid + Math.imul(ah4, bl8)) | 0;\n    hi = (hi + Math.imul(ah4, bh8)) | 0;\n    lo = (lo + Math.imul(al3, bl9)) | 0;\n    mid = (mid + Math.imul(al3, bh9)) | 0;\n    mid = (mid + Math.imul(ah3, bl9)) | 0;\n    hi = (hi + Math.imul(ah3, bh9)) | 0;\n    var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;\n    w12 &= 0x3ffffff;\n    /* k = 13 */\n    lo = Math.imul(al9, bl4);\n    mid = Math.imul(al9, bh4);\n    mid = (mid + Math.imul(ah9, bl4)) | 0;\n    hi = Math.imul(ah9, bh4);\n    lo = (lo + Math.imul(al8, bl5)) | 0;\n    mid = (mid + Math.imul(al8, bh5)) | 0;\n    mid = (mid + Math.imul(ah8, bl5)) | 0;\n    hi = (hi + Math.imul(ah8, bh5)) | 0;\n    lo = (lo + Math.imul(al7, bl6)) | 0;\n    mid = (mid + Math.imul(al7, bh6)) | 0;\n    mid = (mid + Math.imul(ah7, bl6)) | 0;\n    hi = (hi + Math.imul(ah7, bh6)) | 0;\n    lo = (lo + Math.imul(al6, bl7)) | 0;\n    mid = (mid + Math.imul(al6, bh7)) | 0;\n    mid = (mid + Math.imul(ah6, bl7)) | 0;\n    hi = (hi + Math.imul(ah6, bh7)) | 0;\n    lo = (lo + Math.imul(al5, bl8)) | 0;\n    mid = (mid + Math.imul(al5, bh8)) | 0;\n    mid = (mid + Math.imul(ah5, bl8)) | 0;\n    hi = (hi + Math.imul(ah5, bh8)) | 0;\n    lo = (lo + Math.imul(al4, bl9)) | 0;\n    mid = (mid + Math.imul(al4, bh9)) | 0;\n    mid = (mid + Math.imul(ah4, bl9)) | 0;\n    hi = (hi + Math.imul(ah4, bh9)) | 0;\n    var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;\n    w13 &= 0x3ffffff;\n    /* k = 14 */\n    lo = Math.imul(al9, bl5);\n    mid = Math.imul(al9, bh5);\n    mid = (mid + Math.imul(ah9, bl5)) | 0;\n    hi = Math.imul(ah9, bh5);\n    lo = (lo + Math.imul(al8, bl6)) | 0;\n    mid = (mid + Math.imul(al8, bh6)) | 0;\n    mid = (mid + Math.imul(ah8, bl6)) | 0;\n    hi = (hi + Math.imul(ah8, bh6)) | 0;\n    lo = (lo + Math.imul(al7, bl7)) | 0;\n    mid = (mid + Math.imul(al7, bh7)) | 0;\n    mid = (mid + Math.imul(ah7, bl7)) | 0;\n    hi = (hi + Math.imul(ah7, bh7)) | 0;\n    lo = (lo + Math.imul(al6, bl8)) | 0;\n    mid = (mid + Math.imul(al6, bh8)) | 0;\n    mid = (mid + Math.imul(ah6, bl8)) | 0;\n    hi = (hi + Math.imul(ah6, bh8)) | 0;\n    lo = (lo + Math.imul(al5, bl9)) | 0;\n    mid = (mid + Math.imul(al5, bh9)) | 0;\n    mid = (mid + Math.imul(ah5, bl9)) | 0;\n    hi = (hi + Math.imul(ah5, bh9)) | 0;\n    var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;\n    w14 &= 0x3ffffff;\n    /* k = 15 */\n    lo = Math.imul(al9, bl6);\n    mid = Math.imul(al9, bh6);\n    mid = (mid + Math.imul(ah9, bl6)) | 0;\n    hi = Math.imul(ah9, bh6);\n    lo = (lo + Math.imul(al8, bl7)) | 0;\n    mid = (mid + Math.imul(al8, bh7)) | 0;\n    mid = (mid + Math.imul(ah8, bl7)) | 0;\n    hi = (hi + Math.imul(ah8, bh7)) | 0;\n    lo = (lo + Math.imul(al7, bl8)) | 0;\n    mid = (mid + Math.imul(al7, bh8)) | 0;\n    mid = (mid + Math.imul(ah7, bl8)) | 0;\n    hi = (hi + Math.imul(ah7, bh8)) | 0;\n    lo = (lo + Math.imul(al6, bl9)) | 0;\n    mid = (mid + Math.imul(al6, bh9)) | 0;\n    mid = (mid + Math.imul(ah6, bl9)) | 0;\n    hi = (hi + Math.imul(ah6, bh9)) | 0;\n    var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;\n    w15 &= 0x3ffffff;\n    /* k = 16 */\n    lo = Math.imul(al9, bl7);\n    mid = Math.imul(al9, bh7);\n    mid = (mid + Math.imul(ah9, bl7)) | 0;\n    hi = Math.imul(ah9, bh7);\n    lo = (lo + Math.imul(al8, bl8)) | 0;\n    mid = (mid + Math.imul(al8, bh8)) | 0;\n    mid = (mid + Math.imul(ah8, bl8)) | 0;\n    hi = (hi + Math.imul(ah8, bh8)) | 0;\n    lo = (lo + Math.imul(al7, bl9)) | 0;\n    mid = (mid + Math.imul(al7, bh9)) | 0;\n    mid = (mid + Math.imul(ah7, bl9)) | 0;\n    hi = (hi + Math.imul(ah7, bh9)) | 0;\n    var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;\n    w16 &= 0x3ffffff;\n    /* k = 17 */\n    lo = Math.imul(al9, bl8);\n    mid = Math.imul(al9, bh8);\n    mid = (mid + Math.imul(ah9, bl8)) | 0;\n    hi = Math.imul(ah9, bh8);\n    lo = (lo + Math.imul(al8, bl9)) | 0;\n    mid = (mid + Math.imul(al8, bh9)) | 0;\n    mid = (mid + Math.imul(ah8, bl9)) | 0;\n    hi = (hi + Math.imul(ah8, bh9)) | 0;\n    var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;\n    w17 &= 0x3ffffff;\n    /* k = 18 */\n    lo = Math.imul(al9, bl9);\n    mid = Math.imul(al9, bh9);\n    mid = (mid + Math.imul(ah9, bl9)) | 0;\n    hi = Math.imul(ah9, bh9);\n    var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;\n    c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;\n    w18 &= 0x3ffffff;\n    o[0] = w0;\n    o[1] = w1;\n    o[2] = w2;\n    o[3] = w3;\n    o[4] = w4;\n    o[5] = w5;\n    o[6] = w6;\n    o[7] = w7;\n    o[8] = w8;\n    o[9] = w9;\n    o[10] = w10;\n    o[11] = w11;\n    o[12] = w12;\n    o[13] = w13;\n    o[14] = w14;\n    o[15] = w15;\n    o[16] = w16;\n    o[17] = w17;\n    o[18] = w18;\n    if (c !== 0) {\n      o[19] = c;\n      out.length++;\n    }\n    return out;\n  };\n\n  // Polyfill comb\n  if (!Math.imul) {\n    comb10MulTo = smallMulTo;\n  }\n\n  function bigMulTo (self, num, out) {\n    out.negative = num.negative ^ self.negative;\n    out.length = self.length + num.length;\n\n    var carry = 0;\n    var hncarry = 0;\n    for (var k = 0; k < out.length - 1; k++) {\n      // Sum all words with the same `i + j = k` and accumulate `ncarry`,\n      // note that ncarry could be >= 0x3ffffff\n      var ncarry = hncarry;\n      hncarry = 0;\n      var rword = carry & 0x3ffffff;\n      var maxJ = Math.min(k, num.length - 1);\n      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {\n        var i = k - j;\n        var a = self.words[i] | 0;\n        var b = num.words[j] | 0;\n        var r = a * b;\n\n        var lo = r & 0x3ffffff;\n        ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;\n        lo = (lo + rword) | 0;\n        rword = lo & 0x3ffffff;\n        ncarry = (ncarry + (lo >>> 26)) | 0;\n\n        hncarry += ncarry >>> 26;\n        ncarry &= 0x3ffffff;\n      }\n      out.words[k] = rword;\n      carry = ncarry;\n      ncarry = hncarry;\n    }\n    if (carry !== 0) {\n      out.words[k] = carry;\n    } else {\n      out.length--;\n    }\n\n    return out.strip();\n  }\n\n  function jumboMulTo (self, num, out) {\n    var fftm = new FFTM();\n    return fftm.mulp(self, num, out);\n  }\n\n  BN.prototype.mulTo = function mulTo (num, out) {\n    var res;\n    var len = this.length + num.length;\n    if (this.length === 10 && num.length === 10) {\n      res = comb10MulTo(this, num, out);\n    } else if (len < 63) {\n      res = smallMulTo(this, num, out);\n    } else if (len < 1024) {\n      res = bigMulTo(this, num, out);\n    } else {\n      res = jumboMulTo(this, num, out);\n    }\n\n    return res;\n  };\n\n  // Cooley-Tukey algorithm for FFT\n  // slightly revisited to rely on looping instead of recursion\n\n  function FFTM (x, y) {\n    this.x = x;\n    this.y = y;\n  }\n\n  FFTM.prototype.makeRBT = function makeRBT (N) {\n    var t = new Array(N);\n    var l = BN.prototype._countBits(N) - 1;\n    for (var i = 0; i < N; i++) {\n      t[i] = this.revBin(i, l, N);\n    }\n\n    return t;\n  };\n\n  // Returns binary-reversed representation of `x`\n  FFTM.prototype.revBin = function revBin (x, l, N) {\n    if (x === 0 || x === N - 1) return x;\n\n    var rb = 0;\n    for (var i = 0; i < l; i++) {\n      rb |= (x & 1) << (l - i - 1);\n      x >>= 1;\n    }\n\n    return rb;\n  };\n\n  // Performs \"tweedling\" phase, therefore 'emulating'\n  // behaviour of the recursive algorithm\n  FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {\n    for (var i = 0; i < N; i++) {\n      rtws[i] = rws[rbt[i]];\n      itws[i] = iws[rbt[i]];\n    }\n  };\n\n  FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {\n    this.permute(rbt, rws, iws, rtws, itws, N);\n\n    for (var s = 1; s < N; s <<= 1) {\n      var l = s << 1;\n\n      var rtwdf = Math.cos(2 * Math.PI / l);\n      var itwdf = Math.sin(2 * Math.PI / l);\n\n      for (var p = 0; p < N; p += l) {\n        var rtwdf_ = rtwdf;\n        var itwdf_ = itwdf;\n\n        for (var j = 0; j < s; j++) {\n          var re = rtws[p + j];\n          var ie = itws[p + j];\n\n          var ro = rtws[p + j + s];\n          var io = itws[p + j + s];\n\n          var rx = rtwdf_ * ro - itwdf_ * io;\n\n          io = rtwdf_ * io + itwdf_ * ro;\n          ro = rx;\n\n          rtws[p + j] = re + ro;\n          itws[p + j] = ie + io;\n\n          rtws[p + j + s] = re - ro;\n          itws[p + j + s] = ie - io;\n\n          /* jshint maxdepth : false */\n          if (j !== l) {\n            rx = rtwdf * rtwdf_ - itwdf * itwdf_;\n\n            itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;\n            rtwdf_ = rx;\n          }\n        }\n      }\n    }\n  };\n\n  FFTM.prototype.guessLen13b = function guessLen13b (n, m) {\n    var N = Math.max(m, n) | 1;\n    var odd = N & 1;\n    var i = 0;\n    for (N = N / 2 | 0; N; N = N >>> 1) {\n      i++;\n    }\n\n    return 1 << i + 1 + odd;\n  };\n\n  FFTM.prototype.conjugate = function conjugate (rws, iws, N) {\n    if (N <= 1) return;\n\n    for (var i = 0; i < N / 2; i++) {\n      var t = rws[i];\n\n      rws[i] = rws[N - i - 1];\n      rws[N - i - 1] = t;\n\n      t = iws[i];\n\n      iws[i] = -iws[N - i - 1];\n      iws[N - i - 1] = -t;\n    }\n  };\n\n  FFTM.prototype.normalize13b = function normalize13b (ws, N) {\n    var carry = 0;\n    for (var i = 0; i < N / 2; i++) {\n      var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +\n        Math.round(ws[2 * i] / N) +\n        carry;\n\n      ws[i] = w & 0x3ffffff;\n\n      if (w < 0x4000000) {\n        carry = 0;\n      } else {\n        carry = w / 0x4000000 | 0;\n      }\n    }\n\n    return ws;\n  };\n\n  FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {\n    var carry = 0;\n    for (var i = 0; i < len; i++) {\n      carry = carry + (ws[i] | 0);\n\n      rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;\n      rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;\n    }\n\n    // Pad with zeroes\n    for (i = 2 * len; i < N; ++i) {\n      rws[i] = 0;\n    }\n\n    assert(carry === 0);\n    assert((carry & ~0x1fff) === 0);\n  };\n\n  FFTM.prototype.stub = function stub (N) {\n    var ph = new Array(N);\n    for (var i = 0; i < N; i++) {\n      ph[i] = 0;\n    }\n\n    return ph;\n  };\n\n  FFTM.prototype.mulp = function mulp (x, y, out) {\n    var N = 2 * this.guessLen13b(x.length, y.length);\n\n    var rbt = this.makeRBT(N);\n\n    var _ = this.stub(N);\n\n    var rws = new Array(N);\n    var rwst = new Array(N);\n    var iwst = new Array(N);\n\n    var nrws = new Array(N);\n    var nrwst = new Array(N);\n    var niwst = new Array(N);\n\n    var rmws = out.words;\n    rmws.length = N;\n\n    this.convert13b(x.words, x.length, rws, N);\n    this.convert13b(y.words, y.length, nrws, N);\n\n    this.transform(rws, _, rwst, iwst, N, rbt);\n    this.transform(nrws, _, nrwst, niwst, N, rbt);\n\n    for (var i = 0; i < N; i++) {\n      var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];\n      iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];\n      rwst[i] = rx;\n    }\n\n    this.conjugate(rwst, iwst, N);\n    this.transform(rwst, iwst, rmws, _, N, rbt);\n    this.conjugate(rmws, _, N);\n    this.normalize13b(rmws, N);\n\n    out.negative = x.negative ^ y.negative;\n    out.length = x.length + y.length;\n    return out.strip();\n  };\n\n  // Multiply `this` by `num`\n  BN.prototype.mul = function mul (num) {\n    var out = new BN(null);\n    out.words = new Array(this.length + num.length);\n    return this.mulTo(num, out);\n  };\n\n  // Multiply employing FFT\n  BN.prototype.mulf = function mulf (num) {\n    var out = new BN(null);\n    out.words = new Array(this.length + num.length);\n    return jumboMulTo(this, num, out);\n  };\n\n  // In-place Multiplication\n  BN.prototype.imul = function imul (num) {\n    return this.clone().mulTo(num, this);\n  };\n\n  BN.prototype.imuln = function imuln (num) {\n    assert(typeof num === 'number');\n    assert(num < 0x4000000);\n\n    // Carry\n    var carry = 0;\n    for (var i = 0; i < this.length; i++) {\n      var w = (this.words[i] | 0) * num;\n      var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);\n      carry >>= 26;\n      carry += (w / 0x4000000) | 0;\n      // NOTE: lo is 27bit maximum\n      carry += lo >>> 26;\n      this.words[i] = lo & 0x3ffffff;\n    }\n\n    if (carry !== 0) {\n      this.words[i] = carry;\n      this.length++;\n    }\n\n    return this;\n  };\n\n  BN.prototype.muln = function muln (num) {\n    return this.clone().imuln(num);\n  };\n\n  // `this` * `this`\n  BN.prototype.sqr = function sqr () {\n    return this.mul(this);\n  };\n\n  // `this` * `this` in-place\n  BN.prototype.isqr = function isqr () {\n    return this.imul(this.clone());\n  };\n\n  // Math.pow(`this`, `num`)\n  BN.prototype.pow = function pow (num) {\n    var w = toBitArray(num);\n    if (w.length === 0) return new BN(1);\n\n    // Skip leading zeroes\n    var res = this;\n    for (var i = 0; i < w.length; i++, res = res.sqr()) {\n      if (w[i] !== 0) break;\n    }\n\n    if (++i < w.length) {\n      for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {\n        if (w[i] === 0) continue;\n\n        res = res.mul(q);\n      }\n    }\n\n    return res;\n  };\n\n  // Shift-left in-place\n  BN.prototype.iushln = function iushln (bits) {\n    assert(typeof bits === 'number' && bits >= 0);\n    var r = bits % 26;\n    var s = (bits - r) / 26;\n    var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);\n    var i;\n\n    if (r !== 0) {\n      var carry = 0;\n\n      for (i = 0; i < this.length; i++) {\n        var newCarry = this.words[i] & carryMask;\n        var c = ((this.words[i] | 0) - newCarry) << r;\n        this.words[i] = c | carry;\n        carry = newCarry >>> (26 - r);\n      }\n\n      if (carry) {\n        this.words[i] = carry;\n        this.length++;\n      }\n    }\n\n    if (s !== 0) {\n      for (i = this.length - 1; i >= 0; i--) {\n        this.words[i + s] = this.words[i];\n      }\n\n      for (i = 0; i < s; i++) {\n        this.words[i] = 0;\n      }\n\n      this.length += s;\n    }\n\n    return this.strip();\n  };\n\n  BN.prototype.ishln = function ishln (bits) {\n    // TODO(indutny): implement me\n    assert(this.negative === 0);\n    return this.iushln(bits);\n  };\n\n  // Shift-right in-place\n  // NOTE: `hint` is a lowest bit before trailing zeroes\n  // NOTE: if `extended` is present - it will be filled with destroyed bits\n  BN.prototype.iushrn = function iushrn (bits, hint, extended) {\n    assert(typeof bits === 'number' && bits >= 0);\n    var h;\n    if (hint) {\n      h = (hint - (hint % 26)) / 26;\n    } else {\n      h = 0;\n    }\n\n    var r = bits % 26;\n    var s = Math.min((bits - r) / 26, this.length);\n    var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n    var maskedWords = extended;\n\n    h -= s;\n    h = Math.max(0, h);\n\n    // Extended mode, copy masked part\n    if (maskedWords) {\n      for (var i = 0; i < s; i++) {\n        maskedWords.words[i] = this.words[i];\n      }\n      maskedWords.length = s;\n    }\n\n    if (s === 0) {\n      // No-op, we should not move anything at all\n    } else if (this.length > s) {\n      this.length -= s;\n      for (i = 0; i < this.length; i++) {\n        this.words[i] = this.words[i + s];\n      }\n    } else {\n      this.words[0] = 0;\n      this.length = 1;\n    }\n\n    var carry = 0;\n    for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {\n      var word = this.words[i] | 0;\n      this.words[i] = (carry << (26 - r)) | (word >>> r);\n      carry = word & mask;\n    }\n\n    // Push carried bits as a mask\n    if (maskedWords && carry !== 0) {\n      maskedWords.words[maskedWords.length++] = carry;\n    }\n\n    if (this.length === 0) {\n      this.words[0] = 0;\n      this.length = 1;\n    }\n\n    return this.strip();\n  };\n\n  BN.prototype.ishrn = function ishrn (bits, hint, extended) {\n    // TODO(indutny): implement me\n    assert(this.negative === 0);\n    return this.iushrn(bits, hint, extended);\n  };\n\n  // Shift-left\n  BN.prototype.shln = function shln (bits) {\n    return this.clone().ishln(bits);\n  };\n\n  BN.prototype.ushln = function ushln (bits) {\n    return this.clone().iushln(bits);\n  };\n\n  // Shift-right\n  BN.prototype.shrn = function shrn (bits) {\n    return this.clone().ishrn(bits);\n  };\n\n  BN.prototype.ushrn = function ushrn (bits) {\n    return this.clone().iushrn(bits);\n  };\n\n  // Test if n bit is set\n  BN.prototype.testn = function testn (bit) {\n    assert(typeof bit === 'number' && bit >= 0);\n    var r = bit % 26;\n    var s = (bit - r) / 26;\n    var q = 1 << r;\n\n    // Fast case: bit is much higher than all existing words\n    if (this.length <= s) return false;\n\n    // Check bit and return\n    var w = this.words[s];\n\n    return !!(w & q);\n  };\n\n  // Return only lowers bits of number (in-place)\n  BN.prototype.imaskn = function imaskn (bits) {\n    assert(typeof bits === 'number' && bits >= 0);\n    var r = bits % 26;\n    var s = (bits - r) / 26;\n\n    assert(this.negative === 0, 'imaskn works only with positive numbers');\n\n    if (this.length <= s) {\n      return this;\n    }\n\n    if (r !== 0) {\n      s++;\n    }\n    this.length = Math.min(s, this.length);\n\n    if (r !== 0) {\n      var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);\n      this.words[this.length - 1] &= mask;\n    }\n\n    return this.strip();\n  };\n\n  // Return only lowers bits of number\n  BN.prototype.maskn = function maskn (bits) {\n    return this.clone().imaskn(bits);\n  };\n\n  // Add plain number `num` to `this`\n  BN.prototype.iaddn = function iaddn (num) {\n    assert(typeof num === 'number');\n    assert(num < 0x4000000);\n    if (num < 0) return this.isubn(-num);\n\n    // Possible sign change\n    if (this.negative !== 0) {\n      if (this.length === 1 && (this.words[0] | 0) < num) {\n        this.words[0] = num - (this.words[0] | 0);\n        this.negative = 0;\n        return this;\n      }\n\n      this.negative = 0;\n      this.isubn(num);\n      this.negative = 1;\n      return this;\n    }\n\n    // Add without checks\n    return this._iaddn(num);\n  };\n\n  BN.prototype._iaddn = function _iaddn (num) {\n    this.words[0] += num;\n\n    // Carry\n    for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {\n      this.words[i] -= 0x4000000;\n      if (i === this.length - 1) {\n        this.words[i + 1] = 1;\n      } else {\n        this.words[i + 1]++;\n      }\n    }\n    this.length = Math.max(this.length, i + 1);\n\n    return this;\n  };\n\n  // Subtract plain number `num` from `this`\n  BN.prototype.isubn = function isubn (num) {\n    assert(typeof num === 'number');\n    assert(num < 0x4000000);\n    if (num < 0) return this.iaddn(-num);\n\n    if (this.negative !== 0) {\n      this.negative = 0;\n      this.iaddn(num);\n      this.negative = 1;\n      return this;\n    }\n\n    this.words[0] -= num;\n\n    if (this.length === 1 && this.words[0] < 0) {\n      this.words[0] = -this.words[0];\n      this.negative = 1;\n    } else {\n      // Carry\n      for (var i = 0; i < this.length && this.words[i] < 0; i++) {\n        this.words[i] += 0x4000000;\n        this.words[i + 1] -= 1;\n      }\n    }\n\n    return this.strip();\n  };\n\n  BN.prototype.addn = function addn (num) {\n    return this.clone().iaddn(num);\n  };\n\n  BN.prototype.subn = function subn (num) {\n    return this.clone().isubn(num);\n  };\n\n  BN.prototype.iabs = function iabs () {\n    this.negative = 0;\n\n    return this;\n  };\n\n  BN.prototype.abs = function abs () {\n    return this.clone().iabs();\n  };\n\n  BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {\n    var len = num.length + shift;\n    var i;\n\n    this._expand(len);\n\n    var w;\n    var carry = 0;\n    for (i = 0; i < num.length; i++) {\n      w = (this.words[i + shift] | 0) + carry;\n      var right = (num.words[i] | 0) * mul;\n      w -= right & 0x3ffffff;\n      carry = (w >> 26) - ((right / 0x4000000) | 0);\n      this.words[i + shift] = w & 0x3ffffff;\n    }\n    for (; i < this.length - shift; i++) {\n      w = (this.words[i + shift] | 0) + carry;\n      carry = w >> 26;\n      this.words[i + shift] = w & 0x3ffffff;\n    }\n\n    if (carry === 0) return this.strip();\n\n    // Subtraction overflow\n    assert(carry === -1);\n    carry = 0;\n    for (i = 0; i < this.length; i++) {\n      w = -(this.words[i] | 0) + carry;\n      carry = w >> 26;\n      this.words[i] = w & 0x3ffffff;\n    }\n    this.negative = 1;\n\n    return this.strip();\n  };\n\n  BN.prototype._wordDiv = function _wordDiv (num, mode) {\n    var shift = this.length - num.length;\n\n    var a = this.clone();\n    var b = num;\n\n    // Normalize\n    var bhi = b.words[b.length - 1] | 0;\n    var bhiBits = this._countBits(bhi);\n    shift = 26 - bhiBits;\n    if (shift !== 0) {\n      b = b.ushln(shift);\n      a.iushln(shift);\n      bhi = b.words[b.length - 1] | 0;\n    }\n\n    // Initialize quotient\n    var m = a.length - b.length;\n    var q;\n\n    if (mode !== 'mod') {\n      q = new BN(null);\n      q.length = m + 1;\n      q.words = new Array(q.length);\n      for (var i = 0; i < q.length; i++) {\n        q.words[i] = 0;\n      }\n    }\n\n    var diff = a.clone()._ishlnsubmul(b, 1, m);\n    if (diff.negative === 0) {\n      a = diff;\n      if (q) {\n        q.words[m] = 1;\n      }\n    }\n\n    for (var j = m - 1; j >= 0; j--) {\n      var qj = (a.words[b.length + j] | 0) * 0x4000000 +\n        (a.words[b.length + j - 1] | 0);\n\n      // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max\n      // (0x7ffffff)\n      qj = Math.min((qj / bhi) | 0, 0x3ffffff);\n\n      a._ishlnsubmul(b, qj, j);\n      while (a.negative !== 0) {\n        qj--;\n        a.negative = 0;\n        a._ishlnsubmul(b, 1, j);\n        if (!a.isZero()) {\n          a.negative ^= 1;\n        }\n      }\n      if (q) {\n        q.words[j] = qj;\n      }\n    }\n    if (q) {\n      q.strip();\n    }\n    a.strip();\n\n    // Denormalize\n    if (mode !== 'div' && shift !== 0) {\n      a.iushrn(shift);\n    }\n\n    return {\n      div: q || null,\n      mod: a\n    };\n  };\n\n  // NOTE: 1) `mode` can be set to `mod` to request mod only,\n  //       to `div` to request div only, or be absent to\n  //       request both div & mod\n  //       2) `positive` is true if unsigned mod is requested\n  BN.prototype.divmod = function divmod (num, mode, positive) {\n    assert(!num.isZero());\n\n    if (this.isZero()) {\n      return {\n        div: new BN(0),\n        mod: new BN(0)\n      };\n    }\n\n    var div, mod, res;\n    if (this.negative !== 0 && num.negative === 0) {\n      res = this.neg().divmod(num, mode);\n\n      if (mode !== 'mod') {\n        div = res.div.neg();\n      }\n\n      if (mode !== 'div') {\n        mod = res.mod.neg();\n        if (positive && mod.negative !== 0) {\n          mod.iadd(num);\n        }\n      }\n\n      return {\n        div: div,\n        mod: mod\n      };\n    }\n\n    if (this.negative === 0 && num.negative !== 0) {\n      res = this.divmod(num.neg(), mode);\n\n      if (mode !== 'mod') {\n        div = res.div.neg();\n      }\n\n      return {\n        div: div,\n        mod: res.mod\n      };\n    }\n\n    if ((this.negative & num.negative) !== 0) {\n      res = this.neg().divmod(num.neg(), mode);\n\n      if (mode !== 'div') {\n        mod = res.mod.neg();\n        if (positive && mod.negative !== 0) {\n          mod.isub(num);\n        }\n      }\n\n      return {\n        div: res.div,\n        mod: mod\n      };\n    }\n\n    // Both numbers are positive at this point\n\n    // Strip both numbers to approximate shift value\n    if (num.length > this.length || this.cmp(num) < 0) {\n      return {\n        div: new BN(0),\n        mod: this\n      };\n    }\n\n    // Very short reduction\n    if (num.length === 1) {\n      if (mode === 'div') {\n        return {\n          div: this.divn(num.words[0]),\n          mod: null\n        };\n      }\n\n      if (mode === 'mod') {\n        return {\n          div: null,\n          mod: new BN(this.modn(num.words[0]))\n        };\n      }\n\n      return {\n        div: this.divn(num.words[0]),\n        mod: new BN(this.modn(num.words[0]))\n      };\n    }\n\n    return this._wordDiv(num, mode);\n  };\n\n  // Find `this` / `num`\n  BN.prototype.div = function div (num) {\n    return this.divmod(num, 'div', false).div;\n  };\n\n  // Find `this` % `num`\n  BN.prototype.mod = function mod (num) {\n    return this.divmod(num, 'mod', false).mod;\n  };\n\n  BN.prototype.umod = function umod (num) {\n    return this.divmod(num, 'mod', true).mod;\n  };\n\n  // Find Round(`this` / `num`)\n  BN.prototype.divRound = function divRound (num) {\n    var dm = this.divmod(num);\n\n    // Fast case - exact division\n    if (dm.mod.isZero()) return dm.div;\n\n    var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;\n\n    var half = num.ushrn(1);\n    var r2 = num.andln(1);\n    var cmp = mod.cmp(half);\n\n    // Round down\n    if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;\n\n    // Round up\n    return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);\n  };\n\n  BN.prototype.modn = function modn (num) {\n    assert(num <= 0x3ffffff);\n    var p = (1 << 26) % num;\n\n    var acc = 0;\n    for (var i = this.length - 1; i >= 0; i--) {\n      acc = (p * acc + (this.words[i] | 0)) % num;\n    }\n\n    return acc;\n  };\n\n  // In-place division by number\n  BN.prototype.idivn = function idivn (num) {\n    assert(num <= 0x3ffffff);\n\n    var carry = 0;\n    for (var i = this.length - 1; i >= 0; i--) {\n      var w = (this.words[i] | 0) + carry * 0x4000000;\n      this.words[i] = (w / num) | 0;\n      carry = w % num;\n    }\n\n    return this.strip();\n  };\n\n  BN.prototype.divn = function divn (num) {\n    return this.clone().idivn(num);\n  };\n\n  BN.prototype.egcd = function egcd (p) {\n    assert(p.negative === 0);\n    assert(!p.isZero());\n\n    var x = this;\n    var y = p.clone();\n\n    if (x.negative !== 0) {\n      x = x.umod(p);\n    } else {\n      x = x.clone();\n    }\n\n    // A * x + B * y = x\n    var A = new BN(1);\n    var B = new BN(0);\n\n    // C * x + D * y = y\n    var C = new BN(0);\n    var D = new BN(1);\n\n    var g = 0;\n\n    while (x.isEven() && y.isEven()) {\n      x.iushrn(1);\n      y.iushrn(1);\n      ++g;\n    }\n\n    var yp = y.clone();\n    var xp = x.clone();\n\n    while (!x.isZero()) {\n      for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n      if (i > 0) {\n        x.iushrn(i);\n        while (i-- > 0) {\n          if (A.isOdd() || B.isOdd()) {\n            A.iadd(yp);\n            B.isub(xp);\n          }\n\n          A.iushrn(1);\n          B.iushrn(1);\n        }\n      }\n\n      for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n      if (j > 0) {\n        y.iushrn(j);\n        while (j-- > 0) {\n          if (C.isOdd() || D.isOdd()) {\n            C.iadd(yp);\n            D.isub(xp);\n          }\n\n          C.iushrn(1);\n          D.iushrn(1);\n        }\n      }\n\n      if (x.cmp(y) >= 0) {\n        x.isub(y);\n        A.isub(C);\n        B.isub(D);\n      } else {\n        y.isub(x);\n        C.isub(A);\n        D.isub(B);\n      }\n    }\n\n    return {\n      a: C,\n      b: D,\n      gcd: y.iushln(g)\n    };\n  };\n\n  // This is reduced incarnation of the binary EEA\n  // above, designated to invert members of the\n  // _prime_ fields F(p) at a maximal speed\n  BN.prototype._invmp = function _invmp (p) {\n    assert(p.negative === 0);\n    assert(!p.isZero());\n\n    var a = this;\n    var b = p.clone();\n\n    if (a.negative !== 0) {\n      a = a.umod(p);\n    } else {\n      a = a.clone();\n    }\n\n    var x1 = new BN(1);\n    var x2 = new BN(0);\n\n    var delta = b.clone();\n\n    while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {\n      for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);\n      if (i > 0) {\n        a.iushrn(i);\n        while (i-- > 0) {\n          if (x1.isOdd()) {\n            x1.iadd(delta);\n          }\n\n          x1.iushrn(1);\n        }\n      }\n\n      for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);\n      if (j > 0) {\n        b.iushrn(j);\n        while (j-- > 0) {\n          if (x2.isOdd()) {\n            x2.iadd(delta);\n          }\n\n          x2.iushrn(1);\n        }\n      }\n\n      if (a.cmp(b) >= 0) {\n        a.isub(b);\n        x1.isub(x2);\n      } else {\n        b.isub(a);\n        x2.isub(x1);\n      }\n    }\n\n    var res;\n    if (a.cmpn(1) === 0) {\n      res = x1;\n    } else {\n      res = x2;\n    }\n\n    if (res.cmpn(0) < 0) {\n      res.iadd(p);\n    }\n\n    return res;\n  };\n\n  BN.prototype.gcd = function gcd (num) {\n    if (this.isZero()) return num.abs();\n    if (num.isZero()) return this.abs();\n\n    var a = this.clone();\n    var b = num.clone();\n    a.negative = 0;\n    b.negative = 0;\n\n    // Remove common factor of two\n    for (var shift = 0; a.isEven() && b.isEven(); shift++) {\n      a.iushrn(1);\n      b.iushrn(1);\n    }\n\n    do {\n      while (a.isEven()) {\n        a.iushrn(1);\n      }\n      while (b.isEven()) {\n        b.iushrn(1);\n      }\n\n      var r = a.cmp(b);\n      if (r < 0) {\n        // Swap `a` and `b` to make `a` always bigger than `b`\n        var t = a;\n        a = b;\n        b = t;\n      } else if (r === 0 || b.cmpn(1) === 0) {\n        break;\n      }\n\n      a.isub(b);\n    } while (true);\n\n    return b.iushln(shift);\n  };\n\n  // Invert number in the field F(num)\n  BN.prototype.invm = function invm (num) {\n    return this.egcd(num).a.umod(num);\n  };\n\n  BN.prototype.isEven = function isEven () {\n    return (this.words[0] & 1) === 0;\n  };\n\n  BN.prototype.isOdd = function isOdd () {\n    return (this.words[0] & 1) === 1;\n  };\n\n  // And first word and num\n  BN.prototype.andln = function andln (num) {\n    return this.words[0] & num;\n  };\n\n  // Increment at the bit position in-line\n  BN.prototype.bincn = function bincn (bit) {\n    assert(typeof bit === 'number');\n    var r = bit % 26;\n    var s = (bit - r) / 26;\n    var q = 1 << r;\n\n    // Fast case: bit is much higher than all existing words\n    if (this.length <= s) {\n      this._expand(s + 1);\n      this.words[s] |= q;\n      return this;\n    }\n\n    // Add bit and propagate, if needed\n    var carry = q;\n    for (var i = s; carry !== 0 && i < this.length; i++) {\n      var w = this.words[i] | 0;\n      w += carry;\n      carry = w >>> 26;\n      w &= 0x3ffffff;\n      this.words[i] = w;\n    }\n    if (carry !== 0) {\n      this.words[i] = carry;\n      this.length++;\n    }\n    return this;\n  };\n\n  BN.prototype.isZero = function isZero () {\n    return this.length === 1 && this.words[0] === 0;\n  };\n\n  BN.prototype.cmpn = function cmpn (num) {\n    var negative = num < 0;\n\n    if (this.negative !== 0 && !negative) return -1;\n    if (this.negative === 0 && negative) return 1;\n\n    this.strip();\n\n    var res;\n    if (this.length > 1) {\n      res = 1;\n    } else {\n      if (negative) {\n        num = -num;\n      }\n\n      assert(num <= 0x3ffffff, 'Number is too big');\n\n      var w = this.words[0] | 0;\n      res = w === num ? 0 : w < num ? -1 : 1;\n    }\n    if (this.negative !== 0) return -res | 0;\n    return res;\n  };\n\n  // Compare two numbers and return:\n  // 1 - if `this` > `num`\n  // 0 - if `this` == `num`\n  // -1 - if `this` < `num`\n  BN.prototype.cmp = function cmp (num) {\n    if (this.negative !== 0 && num.negative === 0) return -1;\n    if (this.negative === 0 && num.negative !== 0) return 1;\n\n    var res = this.ucmp(num);\n    if (this.negative !== 0) return -res | 0;\n    return res;\n  };\n\n  // Unsigned comparison\n  BN.prototype.ucmp = function ucmp (num) {\n    // At this point both numbers have the same sign\n    if (this.length > num.length) return 1;\n    if (this.length < num.length) return -1;\n\n    var res = 0;\n    for (var i = this.length - 1; i >= 0; i--) {\n      var a = this.words[i] | 0;\n      var b = num.words[i] | 0;\n\n      if (a === b) continue;\n      if (a < b) {\n        res = -1;\n      } else if (a > b) {\n        res = 1;\n      }\n      break;\n    }\n    return res;\n  };\n\n  BN.prototype.gtn = function gtn (num) {\n    return this.cmpn(num) === 1;\n  };\n\n  BN.prototype.gt = function gt (num) {\n    return this.cmp(num) === 1;\n  };\n\n  BN.prototype.gten = function gten (num) {\n    return this.cmpn(num) >= 0;\n  };\n\n  BN.prototype.gte = function gte (num) {\n    return this.cmp(num) >= 0;\n  };\n\n  BN.prototype.ltn = function ltn (num) {\n    return this.cmpn(num) === -1;\n  };\n\n  BN.prototype.lt = function lt (num) {\n    return this.cmp(num) === -1;\n  };\n\n  BN.prototype.lten = function lten (num) {\n    return this.cmpn(num) <= 0;\n  };\n\n  BN.prototype.lte = function lte (num) {\n    return this.cmp(num) <= 0;\n  };\n\n  BN.prototype.eqn = function eqn (num) {\n    return this.cmpn(num) === 0;\n  };\n\n  BN.prototype.eq = function eq (num) {\n    return this.cmp(num) === 0;\n  };\n\n  //\n  // A reduce context, could be using montgomery or something better, depending\n  // on the `m` itself.\n  //\n  BN.red = function red (num) {\n    return new Red(num);\n  };\n\n  BN.prototype.toRed = function toRed (ctx) {\n    assert(!this.red, 'Already a number in reduction context');\n    assert(this.negative === 0, 'red works only with positives');\n    return ctx.convertTo(this)._forceRed(ctx);\n  };\n\n  BN.prototype.fromRed = function fromRed () {\n    assert(this.red, 'fromRed works only with numbers in reduction context');\n    return this.red.convertFrom(this);\n  };\n\n  BN.prototype._forceRed = function _forceRed (ctx) {\n    this.red = ctx;\n    return this;\n  };\n\n  BN.prototype.forceRed = function forceRed (ctx) {\n    assert(!this.red, 'Already a number in reduction context');\n    return this._forceRed(ctx);\n  };\n\n  BN.prototype.redAdd = function redAdd (num) {\n    assert(this.red, 'redAdd works only with red numbers');\n    return this.red.add(this, num);\n  };\n\n  BN.prototype.redIAdd = function redIAdd (num) {\n    assert(this.red, 'redIAdd works only with red numbers');\n    return this.red.iadd(this, num);\n  };\n\n  BN.prototype.redSub = function redSub (num) {\n    assert(this.red, 'redSub works only with red numbers');\n    return this.red.sub(this, num);\n  };\n\n  BN.prototype.redISub = function redISub (num) {\n    assert(this.red, 'redISub works only with red numbers');\n    return this.red.isub(this, num);\n  };\n\n  BN.prototype.redShl = function redShl (num) {\n    assert(this.red, 'redShl works only with red numbers');\n    return this.red.shl(this, num);\n  };\n\n  BN.prototype.redMul = function redMul (num) {\n    assert(this.red, 'redMul works only with red numbers');\n    this.red._verify2(this, num);\n    return this.red.mul(this, num);\n  };\n\n  BN.prototype.redIMul = function redIMul (num) {\n    assert(this.red, 'redMul works only with red numbers');\n    this.red._verify2(this, num);\n    return this.red.imul(this, num);\n  };\n\n  BN.prototype.redSqr = function redSqr () {\n    assert(this.red, 'redSqr works only with red numbers');\n    this.red._verify1(this);\n    return this.red.sqr(this);\n  };\n\n  BN.prototype.redISqr = function redISqr () {\n    assert(this.red, 'redISqr works only with red numbers');\n    this.red._verify1(this);\n    return this.red.isqr(this);\n  };\n\n  // Square root over p\n  BN.prototype.redSqrt = function redSqrt () {\n    assert(this.red, 'redSqrt works only with red numbers');\n    this.red._verify1(this);\n    return this.red.sqrt(this);\n  };\n\n  BN.prototype.redInvm = function redInvm () {\n    assert(this.red, 'redInvm works only with red numbers');\n    this.red._verify1(this);\n    return this.red.invm(this);\n  };\n\n  // Return negative clone of `this` % `red modulo`\n  BN.prototype.redNeg = function redNeg () {\n    assert(this.red, 'redNeg works only with red numbers');\n    this.red._verify1(this);\n    return this.red.neg(this);\n  };\n\n  BN.prototype.redPow = function redPow (num) {\n    assert(this.red && !num.red, 'redPow(normalNum)');\n    this.red._verify1(this);\n    return this.red.pow(this, num);\n  };\n\n  // Prime numbers with efficient reduction\n  var primes = {\n    k256: null,\n    p224: null,\n    p192: null,\n    p25519: null\n  };\n\n  // Pseudo-Mersenne prime\n  function MPrime (name, p) {\n    // P = 2 ^ N - K\n    this.name = name;\n    this.p = new BN(p, 16);\n    this.n = this.p.bitLength();\n    this.k = new BN(1).iushln(this.n).isub(this.p);\n\n    this.tmp = this._tmp();\n  }\n\n  MPrime.prototype._tmp = function _tmp () {\n    var tmp = new BN(null);\n    tmp.words = new Array(Math.ceil(this.n / 13));\n    return tmp;\n  };\n\n  MPrime.prototype.ireduce = function ireduce (num) {\n    // Assumes that `num` is less than `P^2`\n    // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)\n    var r = num;\n    var rlen;\n\n    do {\n      this.split(r, this.tmp);\n      r = this.imulK(r);\n      r = r.iadd(this.tmp);\n      rlen = r.bitLength();\n    } while (rlen > this.n);\n\n    var cmp = rlen < this.n ? -1 : r.ucmp(this.p);\n    if (cmp === 0) {\n      r.words[0] = 0;\n      r.length = 1;\n    } else if (cmp > 0) {\n      r.isub(this.p);\n    } else {\n      r.strip();\n    }\n\n    return r;\n  };\n\n  MPrime.prototype.split = function split (input, out) {\n    input.iushrn(this.n, 0, out);\n  };\n\n  MPrime.prototype.imulK = function imulK (num) {\n    return num.imul(this.k);\n  };\n\n  function K256 () {\n    MPrime.call(\n      this,\n      'k256',\n      'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');\n  }\n  inherits(K256, MPrime);\n\n  K256.prototype.split = function split (input, output) {\n    // 256 = 9 * 26 + 22\n    var mask = 0x3fffff;\n\n    var outLen = Math.min(input.length, 9);\n    for (var i = 0; i < outLen; i++) {\n      output.words[i] = input.words[i];\n    }\n    output.length = outLen;\n\n    if (input.length <= 9) {\n      input.words[0] = 0;\n      input.length = 1;\n      return;\n    }\n\n    // Shift by 9 limbs\n    var prev = input.words[9];\n    output.words[output.length++] = prev & mask;\n\n    for (i = 10; i < input.length; i++) {\n      var next = input.words[i] | 0;\n      input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);\n      prev = next;\n    }\n    prev >>>= 22;\n    input.words[i - 10] = prev;\n    if (prev === 0 && input.length > 10) {\n      input.length -= 10;\n    } else {\n      input.length -= 9;\n    }\n  };\n\n  K256.prototype.imulK = function imulK (num) {\n    // K = 0x1000003d1 = [ 0x40, 0x3d1 ]\n    num.words[num.length] = 0;\n    num.words[num.length + 1] = 0;\n    num.length += 2;\n\n    // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390\n    var lo = 0;\n    for (var i = 0; i < num.length; i++) {\n      var w = num.words[i] | 0;\n      lo += w * 0x3d1;\n      num.words[i] = lo & 0x3ffffff;\n      lo = w * 0x40 + ((lo / 0x4000000) | 0);\n    }\n\n    // Fast length reduction\n    if (num.words[num.length - 1] === 0) {\n      num.length--;\n      if (num.words[num.length - 1] === 0) {\n        num.length--;\n      }\n    }\n    return num;\n  };\n\n  function P224 () {\n    MPrime.call(\n      this,\n      'p224',\n      'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');\n  }\n  inherits(P224, MPrime);\n\n  function P192 () {\n    MPrime.call(\n      this,\n      'p192',\n      'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');\n  }\n  inherits(P192, MPrime);\n\n  function P25519 () {\n    // 2 ^ 255 - 19\n    MPrime.call(\n      this,\n      '25519',\n      '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');\n  }\n  inherits(P25519, MPrime);\n\n  P25519.prototype.imulK = function imulK (num) {\n    // K = 0x13\n    var carry = 0;\n    for (var i = 0; i < num.length; i++) {\n      var hi = (num.words[i] | 0) * 0x13 + carry;\n      var lo = hi & 0x3ffffff;\n      hi >>>= 26;\n\n      num.words[i] = lo;\n      carry = hi;\n    }\n    if (carry !== 0) {\n      num.words[num.length++] = carry;\n    }\n    return num;\n  };\n\n  // Exported mostly for testing purposes, use plain name instead\n  BN._prime = function prime (name) {\n    // Cached version of prime\n    if (primes[name]) return primes[name];\n\n    var prime;\n    if (name === 'k256') {\n      prime = new K256();\n    } else if (name === 'p224') {\n      prime = new P224();\n    } else if (name === 'p192') {\n      prime = new P192();\n    } else if (name === 'p25519') {\n      prime = new P25519();\n    } else {\n      throw new Error('Unknown prime ' + name);\n    }\n    primes[name] = prime;\n\n    return prime;\n  };\n\n  //\n  // Base reduction engine\n  //\n  function Red (m) {\n    if (typeof m === 'string') {\n      var prime = BN._prime(m);\n      this.m = prime.p;\n      this.prime = prime;\n    } else {\n      assert(m.gtn(1), 'modulus must be greater than 1');\n      this.m = m;\n      this.prime = null;\n    }\n  }\n\n  Red.prototype._verify1 = function _verify1 (a) {\n    assert(a.negative === 0, 'red works only with positives');\n    assert(a.red, 'red works only with red numbers');\n  };\n\n  Red.prototype._verify2 = function _verify2 (a, b) {\n    assert((a.negative | b.negative) === 0, 'red works only with positives');\n    assert(a.red && a.red === b.red,\n      'red works only with red numbers');\n  };\n\n  Red.prototype.imod = function imod (a) {\n    if (this.prime) return this.prime.ireduce(a)._forceRed(this);\n    return a.umod(this.m)._forceRed(this);\n  };\n\n  Red.prototype.neg = function neg (a) {\n    if (a.isZero()) {\n      return a.clone();\n    }\n\n    return this.m.sub(a)._forceRed(this);\n  };\n\n  Red.prototype.add = function add (a, b) {\n    this._verify2(a, b);\n\n    var res = a.add(b);\n    if (res.cmp(this.m) >= 0) {\n      res.isub(this.m);\n    }\n    return res._forceRed(this);\n  };\n\n  Red.prototype.iadd = function iadd (a, b) {\n    this._verify2(a, b);\n\n    var res = a.iadd(b);\n    if (res.cmp(this.m) >= 0) {\n      res.isub(this.m);\n    }\n    return res;\n  };\n\n  Red.prototype.sub = function sub (a, b) {\n    this._verify2(a, b);\n\n    var res = a.sub(b);\n    if (res.cmpn(0) < 0) {\n      res.iadd(this.m);\n    }\n    return res._forceRed(this);\n  };\n\n  Red.prototype.isub = function isub (a, b) {\n    this._verify2(a, b);\n\n    var res = a.isub(b);\n    if (res.cmpn(0) < 0) {\n      res.iadd(this.m);\n    }\n    return res;\n  };\n\n  Red.prototype.shl = function shl (a, num) {\n    this._verify1(a);\n    return this.imod(a.ushln(num));\n  };\n\n  Red.prototype.imul = function imul (a, b) {\n    this._verify2(a, b);\n    return this.imod(a.imul(b));\n  };\n\n  Red.prototype.mul = function mul (a, b) {\n    this._verify2(a, b);\n    return this.imod(a.mul(b));\n  };\n\n  Red.prototype.isqr = function isqr (a) {\n    return this.imul(a, a.clone());\n  };\n\n  Red.prototype.sqr = function sqr (a) {\n    return this.mul(a, a);\n  };\n\n  Red.prototype.sqrt = function sqrt (a) {\n    if (a.isZero()) return a.clone();\n\n    var mod3 = this.m.andln(3);\n    assert(mod3 % 2 === 1);\n\n    // Fast case\n    if (mod3 === 3) {\n      var pow = this.m.add(new BN(1)).iushrn(2);\n      return this.pow(a, pow);\n    }\n\n    // Tonelli-Shanks algorithm (Totally unoptimized and slow)\n    //\n    // Find Q and S, that Q * 2 ^ S = (P - 1)\n    var q = this.m.subn(1);\n    var s = 0;\n    while (!q.isZero() && q.andln(1) === 0) {\n      s++;\n      q.iushrn(1);\n    }\n    assert(!q.isZero());\n\n    var one = new BN(1).toRed(this);\n    var nOne = one.redNeg();\n\n    // Find quadratic non-residue\n    // NOTE: Max is such because of generalized Riemann hypothesis.\n    var lpow = this.m.subn(1).iushrn(1);\n    var z = this.m.bitLength();\n    z = new BN(2 * z * z).toRed(this);\n\n    while (this.pow(z, lpow).cmp(nOne) !== 0) {\n      z.redIAdd(nOne);\n    }\n\n    var c = this.pow(z, q);\n    var r = this.pow(a, q.addn(1).iushrn(1));\n    var t = this.pow(a, q);\n    var m = s;\n    while (t.cmp(one) !== 0) {\n      var tmp = t;\n      for (var i = 0; tmp.cmp(one) !== 0; i++) {\n        tmp = tmp.redSqr();\n      }\n      assert(i < m);\n      var b = this.pow(c, new BN(1).iushln(m - i - 1));\n\n      r = r.redMul(b);\n      c = b.redSqr();\n      t = t.redMul(c);\n      m = i;\n    }\n\n    return r;\n  };\n\n  Red.prototype.invm = function invm (a) {\n    var inv = a._invmp(this.m);\n    if (inv.negative !== 0) {\n      inv.negative = 0;\n      return this.imod(inv).redNeg();\n    } else {\n      return this.imod(inv);\n    }\n  };\n\n  Red.prototype.pow = function pow (a, num) {\n    if (num.isZero()) return new BN(1).toRed(this);\n    if (num.cmpn(1) === 0) return a.clone();\n\n    var windowSize = 4;\n    var wnd = new Array(1 << windowSize);\n    wnd[0] = new BN(1).toRed(this);\n    wnd[1] = a;\n    for (var i = 2; i < wnd.length; i++) {\n      wnd[i] = this.mul(wnd[i - 1], a);\n    }\n\n    var res = wnd[0];\n    var current = 0;\n    var currentLen = 0;\n    var start = num.bitLength() % 26;\n    if (start === 0) {\n      start = 26;\n    }\n\n    for (i = num.length - 1; i >= 0; i--) {\n      var word = num.words[i];\n      for (var j = start - 1; j >= 0; j--) {\n        var bit = (word >> j) & 1;\n        if (res !== wnd[0]) {\n          res = this.sqr(res);\n        }\n\n        if (bit === 0 && current === 0) {\n          currentLen = 0;\n          continue;\n        }\n\n        current <<= 1;\n        current |= bit;\n        currentLen++;\n        if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;\n\n        res = this.mul(res, wnd[current]);\n        currentLen = 0;\n        current = 0;\n      }\n      start = 26;\n    }\n\n    return res;\n  };\n\n  Red.prototype.convertTo = function convertTo (num) {\n    var r = num.umod(this.m);\n\n    return r === num ? r.clone() : r;\n  };\n\n  Red.prototype.convertFrom = function convertFrom (num) {\n    var res = num.clone();\n    res.red = null;\n    return res;\n  };\n\n  //\n  // Montgomery method engine\n  //\n\n  BN.mont = function mont (num) {\n    return new Mont(num);\n  };\n\n  function Mont (m) {\n    Red.call(this, m);\n\n    this.shift = this.m.bitLength();\n    if (this.shift % 26 !== 0) {\n      this.shift += 26 - (this.shift % 26);\n    }\n\n    this.r = new BN(1).iushln(this.shift);\n    this.r2 = this.imod(this.r.sqr());\n    this.rinv = this.r._invmp(this.m);\n\n    this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);\n    this.minv = this.minv.umod(this.r);\n    this.minv = this.r.sub(this.minv);\n  }\n  inherits(Mont, Red);\n\n  Mont.prototype.convertTo = function convertTo (num) {\n    return this.imod(num.ushln(this.shift));\n  };\n\n  Mont.prototype.convertFrom = function convertFrom (num) {\n    var r = this.imod(num.mul(this.rinv));\n    r.red = null;\n    return r;\n  };\n\n  Mont.prototype.imul = function imul (a, b) {\n    if (a.isZero() || b.isZero()) {\n      a.words[0] = 0;\n      a.length = 1;\n      return a;\n    }\n\n    var t = a.imul(b);\n    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n    var u = t.isub(c).iushrn(this.shift);\n    var res = u;\n\n    if (u.cmp(this.m) >= 0) {\n      res = u.isub(this.m);\n    } else if (u.cmpn(0) < 0) {\n      res = u.iadd(this.m);\n    }\n\n    return res._forceRed(this);\n  };\n\n  Mont.prototype.mul = function mul (a, b) {\n    if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);\n\n    var t = a.mul(b);\n    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);\n    var u = t.isub(c).iushrn(this.shift);\n    var res = u;\n    if (u.cmp(this.m) >= 0) {\n      res = u.isub(this.m);\n    } else if (u.cmpn(0) < 0) {\n      res = u.iadd(this.m);\n    }\n\n    return res._forceRed(this);\n  };\n\n  Mont.prototype.invm = function invm (a) {\n    // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R\n    var res = this.imod(a._invmp(this.m).mul(this.r2));\n    return res._forceRed(this);\n  };\n})(typeof module === 'undefined' || module, this);\n","var r;\n\nmodule.exports = function rand(len) {\n  if (!r)\n    r = new Rand(null);\n\n  return r.generate(len);\n};\n\nfunction Rand(rand) {\n  this.rand = rand;\n}\nmodule.exports.Rand = Rand;\n\nRand.prototype.generate = function generate(len) {\n  return this._rand(len);\n};\n\n// Emulate crypto API using randy\nRand.prototype._rand = function _rand(n) {\n  if (this.rand.getBytes)\n    return this.rand.getBytes(n);\n\n  var res = new Uint8Array(n);\n  for (var i = 0; i < res.length; i++)\n    res[i] = this.rand.getByte();\n  return res;\n};\n\nif (typeof self === 'object') {\n  if (self.crypto && self.crypto.getRandomValues) {\n    // Modern browsers\n    Rand.prototype._rand = function _rand(n) {\n      var arr = new Uint8Array(n);\n      self.crypto.getRandomValues(arr);\n      return arr;\n    };\n  } else if (self.msCrypto && self.msCrypto.getRandomValues) {\n    // IE\n    Rand.prototype._rand = function _rand(n) {\n      var arr = new Uint8Array(n);\n      self.msCrypto.getRandomValues(arr);\n      return arr;\n    };\n\n  // Safari's WebWorkers do not have `crypto`\n  } else if (typeof window === 'object') {\n    // Old junk\n    Rand.prototype._rand = function() {\n      throw new Error('Not implemented yet');\n    };\n  }\n} else {\n  // Node.js or Web worker with no crypto support\n  try {\n    var crypto = require('crypto');\n    if (typeof crypto.randomBytes !== 'function')\n      throw new Error('Not supported');\n\n    Rand.prototype._rand = function _rand(n) {\n      return crypto.randomBytes(n);\n    };\n  } catch (e) {\n  }\n}\n","","// based on the aes implimentation in triple sec\n// https://github.com/keybase/triplesec\n// which is in turn based on the one from crypto-js\n// https://code.google.com/p/crypto-js/\n\nvar Buffer = require('safe-buffer').Buffer\n\nfunction asUInt32Array (buf) {\n  if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)\n\n  var len = (buf.length / 4) | 0\n  var out = new Array(len)\n\n  for (var i = 0; i < len; i++) {\n    out[i] = buf.readUInt32BE(i * 4)\n  }\n\n  return out\n}\n\nfunction scrubVec (v) {\n  for (var i = 0; i < v.length; v++) {\n    v[i] = 0\n  }\n}\n\nfunction cryptBlock (M, keySchedule, SUB_MIX, SBOX, nRounds) {\n  var SUB_MIX0 = SUB_MIX[0]\n  var SUB_MIX1 = SUB_MIX[1]\n  var SUB_MIX2 = SUB_MIX[2]\n  var SUB_MIX3 = SUB_MIX[3]\n\n  var s0 = M[0] ^ keySchedule[0]\n  var s1 = M[1] ^ keySchedule[1]\n  var s2 = M[2] ^ keySchedule[2]\n  var s3 = M[3] ^ keySchedule[3]\n  var t0, t1, t2, t3\n  var ksRow = 4\n\n  for (var round = 1; round < nRounds; round++) {\n    t0 = SUB_MIX0[s0 >>> 24] ^ SUB_MIX1[(s1 >>> 16) & 0xff] ^ SUB_MIX2[(s2 >>> 8) & 0xff] ^ SUB_MIX3[s3 & 0xff] ^ keySchedule[ksRow++]\n    t1 = SUB_MIX0[s1 >>> 24] ^ SUB_MIX1[(s2 >>> 16) & 0xff] ^ SUB_MIX2[(s3 >>> 8) & 0xff] ^ SUB_MIX3[s0 & 0xff] ^ keySchedule[ksRow++]\n    t2 = SUB_MIX0[s2 >>> 24] ^ SUB_MIX1[(s3 >>> 16) & 0xff] ^ SUB_MIX2[(s0 >>> 8) & 0xff] ^ SUB_MIX3[s1 & 0xff] ^ keySchedule[ksRow++]\n    t3 = SUB_MIX0[s3 >>> 24] ^ SUB_MIX1[(s0 >>> 16) & 0xff] ^ SUB_MIX2[(s1 >>> 8) & 0xff] ^ SUB_MIX3[s2 & 0xff] ^ keySchedule[ksRow++]\n    s0 = t0\n    s1 = t1\n    s2 = t2\n    s3 = t3\n  }\n\n  t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++]\n  t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++]\n  t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++]\n  t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++]\n  t0 = t0 >>> 0\n  t1 = t1 >>> 0\n  t2 = t2 >>> 0\n  t3 = t3 >>> 0\n\n  return [t0, t1, t2, t3]\n}\n\n// AES constants\nvar RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36]\nvar G = (function () {\n  // Compute double table\n  var d = new Array(256)\n  for (var j = 0; j < 256; j++) {\n    if (j < 128) {\n      d[j] = j << 1\n    } else {\n      d[j] = (j << 1) ^ 0x11b\n    }\n  }\n\n  var SBOX = []\n  var INV_SBOX = []\n  var SUB_MIX = [[], [], [], []]\n  var INV_SUB_MIX = [[], [], [], []]\n\n  // Walk GF(2^8)\n  var x = 0\n  var xi = 0\n  for (var i = 0; i < 256; ++i) {\n    // Compute sbox\n    var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4)\n    sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63\n    SBOX[x] = sx\n    INV_SBOX[sx] = x\n\n    // Compute multiplication\n    var x2 = d[x]\n    var x4 = d[x2]\n    var x8 = d[x4]\n\n    // Compute sub bytes, mix columns tables\n    var t = (d[sx] * 0x101) ^ (sx * 0x1010100)\n    SUB_MIX[0][x] = (t << 24) | (t >>> 8)\n    SUB_MIX[1][x] = (t << 16) | (t >>> 16)\n    SUB_MIX[2][x] = (t << 8) | (t >>> 24)\n    SUB_MIX[3][x] = t\n\n    // Compute inv sub bytes, inv mix columns tables\n    t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100)\n    INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8)\n    INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16)\n    INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24)\n    INV_SUB_MIX[3][sx] = t\n\n    if (x === 0) {\n      x = xi = 1\n    } else {\n      x = x2 ^ d[d[d[x8 ^ x2]]]\n      xi ^= d[d[xi]]\n    }\n  }\n\n  return {\n    SBOX: SBOX,\n    INV_SBOX: INV_SBOX,\n    SUB_MIX: SUB_MIX,\n    INV_SUB_MIX: INV_SUB_MIX\n  }\n})()\n\nfunction AES (key) {\n  this._key = asUInt32Array(key)\n  this._reset()\n}\n\nAES.blockSize = 4 * 4\nAES.keySize = 256 / 8\nAES.prototype.blockSize = AES.blockSize\nAES.prototype.keySize = AES.keySize\nAES.prototype._reset = function () {\n  var keyWords = this._key\n  var keySize = keyWords.length\n  var nRounds = keySize + 6\n  var ksRows = (nRounds + 1) * 4\n\n  var keySchedule = []\n  for (var k = 0; k < keySize; k++) {\n    keySchedule[k] = keyWords[k]\n  }\n\n  for (k = keySize; k < ksRows; k++) {\n    var t = keySchedule[k - 1]\n\n    if (k % keySize === 0) {\n      t = (t << 8) | (t >>> 24)\n      t =\n        (G.SBOX[t >>> 24] << 24) |\n        (G.SBOX[(t >>> 16) & 0xff] << 16) |\n        (G.SBOX[(t >>> 8) & 0xff] << 8) |\n        (G.SBOX[t & 0xff])\n\n      t ^= RCON[(k / keySize) | 0] << 24\n    } else if (keySize > 6 && k % keySize === 4) {\n      t =\n        (G.SBOX[t >>> 24] << 24) |\n        (G.SBOX[(t >>> 16) & 0xff] << 16) |\n        (G.SBOX[(t >>> 8) & 0xff] << 8) |\n        (G.SBOX[t & 0xff])\n    }\n\n    keySchedule[k] = keySchedule[k - keySize] ^ t\n  }\n\n  var invKeySchedule = []\n  for (var ik = 0; ik < ksRows; ik++) {\n    var ksR = ksRows - ik\n    var tt = keySchedule[ksR - (ik % 4 ? 0 : 4)]\n\n    if (ik < 4 || ksR <= 4) {\n      invKeySchedule[ik] = tt\n    } else {\n      invKeySchedule[ik] =\n        G.INV_SUB_MIX[0][G.SBOX[tt >>> 24]] ^\n        G.INV_SUB_MIX[1][G.SBOX[(tt >>> 16) & 0xff]] ^\n        G.INV_SUB_MIX[2][G.SBOX[(tt >>> 8) & 0xff]] ^\n        G.INV_SUB_MIX[3][G.SBOX[tt & 0xff]]\n    }\n  }\n\n  this._nRounds = nRounds\n  this._keySchedule = keySchedule\n  this._invKeySchedule = invKeySchedule\n}\n\nAES.prototype.encryptBlockRaw = function (M) {\n  M = asUInt32Array(M)\n  return cryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX, this._nRounds)\n}\n\nAES.prototype.encryptBlock = function (M) {\n  var out = this.encryptBlockRaw(M)\n  var buf = Buffer.allocUnsafe(16)\n  buf.writeUInt32BE(out[0], 0)\n  buf.writeUInt32BE(out[1], 4)\n  buf.writeUInt32BE(out[2], 8)\n  buf.writeUInt32BE(out[3], 12)\n  return buf\n}\n\nAES.prototype.decryptBlock = function (M) {\n  M = asUInt32Array(M)\n\n  // swap\n  var m1 = M[1]\n  M[1] = M[3]\n  M[3] = m1\n\n  var out = cryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX, this._nRounds)\n  var buf = Buffer.allocUnsafe(16)\n  buf.writeUInt32BE(out[0], 0)\n  buf.writeUInt32BE(out[3], 4)\n  buf.writeUInt32BE(out[2], 8)\n  buf.writeUInt32BE(out[1], 12)\n  return buf\n}\n\nAES.prototype.scrub = function () {\n  scrubVec(this._keySchedule)\n  scrubVec(this._invKeySchedule)\n  scrubVec(this._key)\n}\n\nmodule.exports.AES = AES\n","var aes = require('./aes')\nvar Buffer = require('safe-buffer').Buffer\nvar Transform = require('cipher-base')\nvar inherits = require('inherits')\nvar GHASH = require('./ghash')\nvar xor = require('buffer-xor')\nvar incr32 = require('./incr32')\n\nfunction xorTest (a, b) {\n  var out = 0\n  if (a.length !== b.length) out++\n\n  var len = Math.min(a.length, b.length)\n  for (var i = 0; i < len; ++i) {\n    out += (a[i] ^ b[i])\n  }\n\n  return out\n}\n\nfunction calcIv (self, iv, ck) {\n  if (iv.length === 12) {\n    self._finID = Buffer.concat([iv, Buffer.from([0, 0, 0, 1])])\n    return Buffer.concat([iv, Buffer.from([0, 0, 0, 2])])\n  }\n  var ghash = new GHASH(ck)\n  var len = iv.length\n  var toPad = len % 16\n  ghash.update(iv)\n  if (toPad) {\n    toPad = 16 - toPad\n    ghash.update(Buffer.alloc(toPad, 0))\n  }\n  ghash.update(Buffer.alloc(8, 0))\n  var ivBits = len * 8\n  var tail = Buffer.alloc(8)\n  tail.writeUIntBE(ivBits, 0, 8)\n  ghash.update(tail)\n  self._finID = ghash.state\n  var out = Buffer.from(self._finID)\n  incr32(out)\n  return out\n}\nfunction StreamCipher (mode, key, iv, decrypt) {\n  Transform.call(this)\n\n  var h = Buffer.alloc(4, 0)\n\n  this._cipher = new aes.AES(key)\n  var ck = this._cipher.encryptBlock(h)\n  this._ghash = new GHASH(ck)\n  iv = calcIv(this, iv, ck)\n\n  this._prev = Buffer.from(iv)\n  this._cache = Buffer.allocUnsafe(0)\n  this._secCache = Buffer.allocUnsafe(0)\n  this._decrypt = decrypt\n  this._alen = 0\n  this._len = 0\n  this._mode = mode\n\n  this._authTag = null\n  this._called = false\n}\n\ninherits(StreamCipher, Transform)\n\nStreamCipher.prototype._update = function (chunk) {\n  if (!this._called && this._alen) {\n    var rump = 16 - (this._alen % 16)\n    if (rump < 16) {\n      rump = Buffer.alloc(rump, 0)\n      this._ghash.update(rump)\n    }\n  }\n\n  this._called = true\n  var out = this._mode.encrypt(this, chunk)\n  if (this._decrypt) {\n    this._ghash.update(chunk)\n  } else {\n    this._ghash.update(out)\n  }\n  this._len += chunk.length\n  return out\n}\n\nStreamCipher.prototype._final = function () {\n  if (this._decrypt && !this._authTag) throw new Error('Unsupported state or unable to authenticate data')\n\n  var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID))\n  if (this._decrypt && xorTest(tag, this._authTag)) throw new Error('Unsupported state or unable to authenticate data')\n\n  this._authTag = tag\n  this._cipher.scrub()\n}\n\nStreamCipher.prototype.getAuthTag = function getAuthTag () {\n  if (this._decrypt || !Buffer.isBuffer(this._authTag)) throw new Error('Attempting to get auth tag in unsupported state')\n\n  return this._authTag\n}\n\nStreamCipher.prototype.setAuthTag = function setAuthTag (tag) {\n  if (!this._decrypt) throw new Error('Attempting to set auth tag in unsupported state')\n\n  this._authTag = tag\n}\n\nStreamCipher.prototype.setAAD = function setAAD (buf) {\n  if (this._called) throw new Error('Attempting to set AAD in unsupported state')\n\n  this._ghash.update(buf)\n  this._alen += buf.length\n}\n\nmodule.exports = StreamCipher\n","var ciphers = require('./encrypter')\nvar deciphers = require('./decrypter')\nvar modes = require('./modes/list.json')\n\nfunction getCiphers () {\n  return Object.keys(modes)\n}\n\nexports.createCipher = exports.Cipher = ciphers.createCipher\nexports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv\nexports.createDecipher = exports.Decipher = deciphers.createDecipher\nexports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv\nexports.listCiphers = exports.getCiphers = getCiphers\n","var AuthCipher = require('./authCipher')\nvar Buffer = require('safe-buffer').Buffer\nvar MODES = require('./modes')\nvar StreamCipher = require('./streamCipher')\nvar Transform = require('cipher-base')\nvar aes = require('./aes')\nvar ebtk = require('evp_bytestokey')\nvar inherits = require('inherits')\n\nfunction Decipher (mode, key, iv) {\n  Transform.call(this)\n\n  this._cache = new Splitter()\n  this._last = void 0\n  this._cipher = new aes.AES(key)\n  this._prev = Buffer.from(iv)\n  this._mode = mode\n  this._autopadding = true\n}\n\ninherits(Decipher, Transform)\n\nDecipher.prototype._update = function (data) {\n  this._cache.add(data)\n  var chunk\n  var thing\n  var out = []\n  while ((chunk = this._cache.get(this._autopadding))) {\n    thing = this._mode.decrypt(this, chunk)\n    out.push(thing)\n  }\n  return Buffer.concat(out)\n}\n\nDecipher.prototype._final = function () {\n  var chunk = this._cache.flush()\n  if (this._autopadding) {\n    return unpad(this._mode.decrypt(this, chunk))\n  } else if (chunk) {\n    throw new Error('data not multiple of block length')\n  }\n}\n\nDecipher.prototype.setAutoPadding = function (setTo) {\n  this._autopadding = !!setTo\n  return this\n}\n\nfunction Splitter () {\n  this.cache = Buffer.allocUnsafe(0)\n}\n\nSplitter.prototype.add = function (data) {\n  this.cache = Buffer.concat([this.cache, data])\n}\n\nSplitter.prototype.get = function (autoPadding) {\n  var out\n  if (autoPadding) {\n    if (this.cache.length > 16) {\n      out = this.cache.slice(0, 16)\n      this.cache = this.cache.slice(16)\n      return out\n    }\n  } else {\n    if (this.cache.length >= 16) {\n      out = this.cache.slice(0, 16)\n      this.cache = this.cache.slice(16)\n      return out\n    }\n  }\n\n  return null\n}\n\nSplitter.prototype.flush = function () {\n  if (this.cache.length) return this.cache\n}\n\nfunction unpad (last) {\n  var padded = last[15]\n  if (padded < 1 || padded > 16) {\n    throw new Error('unable to decrypt data')\n  }\n  var i = -1\n  while (++i < padded) {\n    if (last[(i + (16 - padded))] !== padded) {\n      throw new Error('unable to decrypt data')\n    }\n  }\n  if (padded === 16) return\n\n  return last.slice(0, 16 - padded)\n}\n\nfunction createDecipheriv (suite, password, iv) {\n  var config = MODES[suite.toLowerCase()]\n  if (!config) throw new TypeError('invalid suite type')\n\n  if (typeof iv === 'string') iv = Buffer.from(iv)\n  if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)\n\n  if (typeof password === 'string') password = Buffer.from(password)\n  if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)\n\n  if (config.type === 'stream') {\n    return new StreamCipher(config.module, password, iv, true)\n  } else if (config.type === 'auth') {\n    return new AuthCipher(config.module, password, iv, true)\n  }\n\n  return new Decipher(config.module, password, iv)\n}\n\nfunction createDecipher (suite, password) {\n  var config = MODES[suite.toLowerCase()]\n  if (!config) throw new TypeError('invalid suite type')\n\n  var keys = ebtk(password, false, config.key, config.iv)\n  return createDecipheriv(suite, keys.key, keys.iv)\n}\n\nexports.createDecipher = createDecipher\nexports.createDecipheriv = createDecipheriv\n","var MODES = require('./modes')\nvar AuthCipher = require('./authCipher')\nvar Buffer = require('safe-buffer').Buffer\nvar StreamCipher = require('./streamCipher')\nvar Transform = require('cipher-base')\nvar aes = require('./aes')\nvar ebtk = require('evp_bytestokey')\nvar inherits = require('inherits')\n\nfunction Cipher (mode, key, iv) {\n  Transform.call(this)\n\n  this._cache = new Splitter()\n  this._cipher = new aes.AES(key)\n  this._prev = Buffer.from(iv)\n  this._mode = mode\n  this._autopadding = true\n}\n\ninherits(Cipher, Transform)\n\nCipher.prototype._update = function (data) {\n  this._cache.add(data)\n  var chunk\n  var thing\n  var out = []\n\n  while ((chunk = this._cache.get())) {\n    thing = this._mode.encrypt(this, chunk)\n    out.push(thing)\n  }\n\n  return Buffer.concat(out)\n}\n\nvar PADDING = Buffer.alloc(16, 0x10)\n\nCipher.prototype._final = function () {\n  var chunk = this._cache.flush()\n  if (this._autopadding) {\n    chunk = this._mode.encrypt(this, chunk)\n    this._cipher.scrub()\n    return chunk\n  }\n\n  if (!chunk.equals(PADDING)) {\n    this._cipher.scrub()\n    throw new Error('data not multiple of block length')\n  }\n}\n\nCipher.prototype.setAutoPadding = function (setTo) {\n  this._autopadding = !!setTo\n  return this\n}\n\nfunction Splitter () {\n  this.cache = Buffer.allocUnsafe(0)\n}\n\nSplitter.prototype.add = function (data) {\n  this.cache = Buffer.concat([this.cache, data])\n}\n\nSplitter.prototype.get = function () {\n  if (this.cache.length > 15) {\n    var out = this.cache.slice(0, 16)\n    this.cache = this.cache.slice(16)\n    return out\n  }\n  return null\n}\n\nSplitter.prototype.flush = function () {\n  var len = 16 - this.cache.length\n  var padBuff = Buffer.allocUnsafe(len)\n\n  var i = -1\n  while (++i < len) {\n    padBuff.writeUInt8(len, i)\n  }\n\n  return Buffer.concat([this.cache, padBuff])\n}\n\nfunction createCipheriv (suite, password, iv) {\n  var config = MODES[suite.toLowerCase()]\n  if (!config) throw new TypeError('invalid suite type')\n\n  if (typeof password === 'string') password = Buffer.from(password)\n  if (password.length !== config.key / 8) throw new TypeError('invalid key length ' + password.length)\n\n  if (typeof iv === 'string') iv = Buffer.from(iv)\n  if (config.mode !== 'GCM' && iv.length !== config.iv) throw new TypeError('invalid iv length ' + iv.length)\n\n  if (config.type === 'stream') {\n    return new StreamCipher(config.module, password, iv)\n  } else if (config.type === 'auth') {\n    return new AuthCipher(config.module, password, iv)\n  }\n\n  return new Cipher(config.module, password, iv)\n}\n\nfunction createCipher (suite, password) {\n  var config = MODES[suite.toLowerCase()]\n  if (!config) throw new TypeError('invalid suite type')\n\n  var keys = ebtk(password, false, config.key, config.iv)\n  return createCipheriv(suite, keys.key, keys.iv)\n}\n\nexports.createCipheriv = createCipheriv\nexports.createCipher = createCipher\n","var Buffer = require('safe-buffer').Buffer\nvar ZEROES = Buffer.alloc(16, 0)\n\nfunction toArray (buf) {\n  return [\n    buf.readUInt32BE(0),\n    buf.readUInt32BE(4),\n    buf.readUInt32BE(8),\n    buf.readUInt32BE(12)\n  ]\n}\n\nfunction fromArray (out) {\n  var buf = Buffer.allocUnsafe(16)\n  buf.writeUInt32BE(out[0] >>> 0, 0)\n  buf.writeUInt32BE(out[1] >>> 0, 4)\n  buf.writeUInt32BE(out[2] >>> 0, 8)\n  buf.writeUInt32BE(out[3] >>> 0, 12)\n  return buf\n}\n\nfunction GHASH (key) {\n  this.h = key\n  this.state = Buffer.alloc(16, 0)\n  this.cache = Buffer.allocUnsafe(0)\n}\n\n// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html\n// by Juho Vähä-Herttua\nGHASH.prototype.ghash = function (block) {\n  var i = -1\n  while (++i < block.length) {\n    this.state[i] ^= block[i]\n  }\n  this._multiply()\n}\n\nGHASH.prototype._multiply = function () {\n  var Vi = toArray(this.h)\n  var Zi = [0, 0, 0, 0]\n  var j, xi, lsbVi\n  var i = -1\n  while (++i < 128) {\n    xi = (this.state[~~(i / 8)] & (1 << (7 - (i % 8)))) !== 0\n    if (xi) {\n      // Z_i+1 = Z_i ^ V_i\n      Zi[0] ^= Vi[0]\n      Zi[1] ^= Vi[1]\n      Zi[2] ^= Vi[2]\n      Zi[3] ^= Vi[3]\n    }\n\n    // Store the value of LSB(V_i)\n    lsbVi = (Vi[3] & 1) !== 0\n\n    // V_i+1 = V_i >> 1\n    for (j = 3; j > 0; j--) {\n      Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31)\n    }\n    Vi[0] = Vi[0] >>> 1\n\n    // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R\n    if (lsbVi) {\n      Vi[0] = Vi[0] ^ (0xe1 << 24)\n    }\n  }\n  this.state = fromArray(Zi)\n}\n\nGHASH.prototype.update = function (buf) {\n  this.cache = Buffer.concat([this.cache, buf])\n  var chunk\n  while (this.cache.length >= 16) {\n    chunk = this.cache.slice(0, 16)\n    this.cache = this.cache.slice(16)\n    this.ghash(chunk)\n  }\n}\n\nGHASH.prototype.final = function (abl, bl) {\n  if (this.cache.length) {\n    this.ghash(Buffer.concat([this.cache, ZEROES], 16))\n  }\n\n  this.ghash(fromArray([0, abl, 0, bl]))\n  return this.state\n}\n\nmodule.exports = GHASH\n","function incr32 (iv) {\n  var len = iv.length\n  var item\n  while (len--) {\n    item = iv.readUInt8(len)\n    if (item === 255) {\n      iv.writeUInt8(0, len)\n    } else {\n      item++\n      iv.writeUInt8(item, len)\n      break\n    }\n  }\n}\nmodule.exports = incr32\n","var xor = require('buffer-xor')\n\nexports.encrypt = function (self, block) {\n  var data = xor(block, self._prev)\n\n  self._prev = self._cipher.encryptBlock(data)\n  return self._prev\n}\n\nexports.decrypt = function (self, block) {\n  var pad = self._prev\n\n  self._prev = block\n  var out = self._cipher.decryptBlock(block)\n\n  return xor(out, pad)\n}\n","var Buffer = require('safe-buffer').Buffer\nvar xor = require('buffer-xor')\n\nfunction encryptStart (self, data, decrypt) {\n  var len = data.length\n  var out = xor(data, self._cache)\n  self._cache = self._cache.slice(len)\n  self._prev = Buffer.concat([self._prev, decrypt ? data : out])\n  return out\n}\n\nexports.encrypt = function (self, data, decrypt) {\n  var out = Buffer.allocUnsafe(0)\n  var len\n\n  while (data.length) {\n    if (self._cache.length === 0) {\n      self._cache = self._cipher.encryptBlock(self._prev)\n      self._prev = Buffer.allocUnsafe(0)\n    }\n\n    if (self._cache.length <= data.length) {\n      len = self._cache.length\n      out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)])\n      data = data.slice(len)\n    } else {\n      out = Buffer.concat([out, encryptStart(self, data, decrypt)])\n      break\n    }\n  }\n\n  return out\n}\n","var Buffer = require('safe-buffer').Buffer\n\nfunction encryptByte (self, byteParam, decrypt) {\n  var pad\n  var i = -1\n  var len = 8\n  var out = 0\n  var bit, value\n  while (++i < len) {\n    pad = self._cipher.encryptBlock(self._prev)\n    bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0\n    value = pad[0] ^ bit\n    out += ((value & 0x80) >> (i % 8))\n    self._prev = shiftIn(self._prev, decrypt ? bit : value)\n  }\n  return out\n}\n\nfunction shiftIn (buffer, value) {\n  var len = buffer.length\n  var i = -1\n  var out = Buffer.allocUnsafe(buffer.length)\n  buffer = Buffer.concat([buffer, Buffer.from([value])])\n\n  while (++i < len) {\n    out[i] = buffer[i] << 1 | buffer[i + 1] >> (7)\n  }\n\n  return out\n}\n\nexports.encrypt = function (self, chunk, decrypt) {\n  var len = chunk.length\n  var out = Buffer.allocUnsafe(len)\n  var i = -1\n\n  while (++i < len) {\n    out[i] = encryptByte(self, chunk[i], decrypt)\n  }\n\n  return out\n}\n","var Buffer = require('safe-buffer').Buffer\n\nfunction encryptByte (self, byteParam, decrypt) {\n  var pad = self._cipher.encryptBlock(self._prev)\n  var out = pad[0] ^ byteParam\n\n  self._prev = Buffer.concat([\n    self._prev.slice(1),\n    Buffer.from([decrypt ? byteParam : out])\n  ])\n\n  return out\n}\n\nexports.encrypt = function (self, chunk, decrypt) {\n  var len = chunk.length\n  var out = Buffer.allocUnsafe(len)\n  var i = -1\n\n  while (++i < len) {\n    out[i] = encryptByte(self, chunk[i], decrypt)\n  }\n\n  return out\n}\n","var xor = require('buffer-xor')\nvar Buffer = require('safe-buffer').Buffer\nvar incr32 = require('../incr32')\n\nfunction getBlock (self) {\n  var out = self._cipher.encryptBlockRaw(self._prev)\n  incr32(self._prev)\n  return out\n}\n\nvar blockSize = 16\nexports.encrypt = function (self, chunk) {\n  var chunkNum = Math.ceil(chunk.length / blockSize)\n  var start = self._cache.length\n  self._cache = Buffer.concat([\n    self._cache,\n    Buffer.allocUnsafe(chunkNum * blockSize)\n  ])\n  for (var i = 0; i < chunkNum; i++) {\n    var out = getBlock(self)\n    var offset = start + i * blockSize\n    self._cache.writeUInt32BE(out[0], offset + 0)\n    self._cache.writeUInt32BE(out[1], offset + 4)\n    self._cache.writeUInt32BE(out[2], offset + 8)\n    self._cache.writeUInt32BE(out[3], offset + 12)\n  }\n  var pad = self._cache.slice(0, chunk.length)\n  self._cache = self._cache.slice(chunk.length)\n  return xor(chunk, pad)\n}\n","exports.encrypt = function (self, block) {\n  return self._cipher.encryptBlock(block)\n}\n\nexports.decrypt = function (self, block) {\n  return self._cipher.decryptBlock(block)\n}\n","var modeModules = {\n  ECB: require('./ecb'),\n  CBC: require('./cbc'),\n  CFB: require('./cfb'),\n  CFB8: require('./cfb8'),\n  CFB1: require('./cfb1'),\n  OFB: require('./ofb'),\n  CTR: require('./ctr'),\n  GCM: require('./ctr')\n}\n\nvar modes = require('./list.json')\n\nfor (var key in modes) {\n  modes[key].module = modeModules[modes[key].mode]\n}\n\nmodule.exports = modes\n","module.exports={\n  \"aes-128-ecb\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 0,\n    \"mode\": \"ECB\",\n    \"type\": \"block\"\n  },\n  \"aes-192-ecb\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 0,\n    \"mode\": \"ECB\",\n    \"type\": \"block\"\n  },\n  \"aes-256-ecb\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 0,\n    \"mode\": \"ECB\",\n    \"type\": \"block\"\n  },\n  \"aes-128-cbc\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes-192-cbc\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes-256-cbc\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes128\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes192\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes256\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CBC\",\n    \"type\": \"block\"\n  },\n  \"aes-128-cfb\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-192-cfb\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-256-cfb\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-128-cfb8\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CFB8\",\n    \"type\": \"stream\"\n  },\n  \"aes-192-cfb8\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CFB8\",\n    \"type\": \"stream\"\n  },\n  \"aes-256-cfb8\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CFB8\",\n    \"type\": \"stream\"\n  },\n  \"aes-128-cfb1\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CFB1\",\n    \"type\": \"stream\"\n  },\n  \"aes-192-cfb1\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CFB1\",\n    \"type\": \"stream\"\n  },\n  \"aes-256-cfb1\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CFB1\",\n    \"type\": \"stream\"\n  },\n  \"aes-128-ofb\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"OFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-192-ofb\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"OFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-256-ofb\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"OFB\",\n    \"type\": \"stream\"\n  },\n  \"aes-128-ctr\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 16,\n    \"mode\": \"CTR\",\n    \"type\": \"stream\"\n  },\n  \"aes-192-ctr\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 16,\n    \"mode\": \"CTR\",\n    \"type\": \"stream\"\n  },\n  \"aes-256-ctr\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 16,\n    \"mode\": \"CTR\",\n    \"type\": \"stream\"\n  },\n  \"aes-128-gcm\": {\n    \"cipher\": \"AES\",\n    \"key\": 128,\n    \"iv\": 12,\n    \"mode\": \"GCM\",\n    \"type\": \"auth\"\n  },\n  \"aes-192-gcm\": {\n    \"cipher\": \"AES\",\n    \"key\": 192,\n    \"iv\": 12,\n    \"mode\": \"GCM\",\n    \"type\": \"auth\"\n  },\n  \"aes-256-gcm\": {\n    \"cipher\": \"AES\",\n    \"key\": 256,\n    \"iv\": 12,\n    \"mode\": \"GCM\",\n    \"type\": \"auth\"\n  }\n}\n","var xor = require('buffer-xor')\n\nfunction getBlock (self) {\n  self._prev = self._cipher.encryptBlock(self._prev)\n  return self._prev\n}\n\nexports.encrypt = function (self, chunk) {\n  while (self._cache.length < chunk.length) {\n    self._cache = Buffer.concat([self._cache, getBlock(self)])\n  }\n\n  var pad = self._cache.slice(0, chunk.length)\n  self._cache = self._cache.slice(chunk.length)\n  return xor(chunk, pad)\n}\n","var aes = require('./aes')\nvar Buffer = require('safe-buffer').Buffer\nvar Transform = require('cipher-base')\nvar inherits = require('inherits')\n\nfunction StreamCipher (mode, key, iv, decrypt) {\n  Transform.call(this)\n\n  this._cipher = new aes.AES(key)\n  this._prev = Buffer.from(iv)\n  this._cache = Buffer.allocUnsafe(0)\n  this._secCache = Buffer.allocUnsafe(0)\n  this._decrypt = decrypt\n  this._mode = mode\n}\n\ninherits(StreamCipher, Transform)\n\nStreamCipher.prototype._update = function (chunk) {\n  return this._mode.encrypt(this, chunk, this._decrypt)\n}\n\nStreamCipher.prototype._final = function () {\n  this._cipher.scrub()\n}\n\nmodule.exports = StreamCipher\n","var DES = require('browserify-des')\nvar aes = require('browserify-aes/browser')\nvar aesModes = require('browserify-aes/modes')\nvar desModes = require('browserify-des/modes')\nvar ebtk = require('evp_bytestokey')\n\nfunction createCipher (suite, password) {\n  suite = suite.toLowerCase()\n\n  var keyLen, ivLen\n  if (aesModes[suite]) {\n    keyLen = aesModes[suite].key\n    ivLen = aesModes[suite].iv\n  } else if (desModes[suite]) {\n    keyLen = desModes[suite].key * 8\n    ivLen = desModes[suite].iv\n  } else {\n    throw new TypeError('invalid suite type')\n  }\n\n  var keys = ebtk(password, false, keyLen, ivLen)\n  return createCipheriv(suite, keys.key, keys.iv)\n}\n\nfunction createDecipher (suite, password) {\n  suite = suite.toLowerCase()\n\n  var keyLen, ivLen\n  if (aesModes[suite]) {\n    keyLen = aesModes[suite].key\n    ivLen = aesModes[suite].iv\n  } else if (desModes[suite]) {\n    keyLen = desModes[suite].key * 8\n    ivLen = desModes[suite].iv\n  } else {\n    throw new TypeError('invalid suite type')\n  }\n\n  var keys = ebtk(password, false, keyLen, ivLen)\n  return createDecipheriv(suite, keys.key, keys.iv)\n}\n\nfunction createCipheriv (suite, key, iv) {\n  suite = suite.toLowerCase()\n  if (aesModes[suite]) return aes.createCipheriv(suite, key, iv)\n  if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite })\n\n  throw new TypeError('invalid suite type')\n}\n\nfunction createDecipheriv (suite, key, iv) {\n  suite = suite.toLowerCase()\n  if (aesModes[suite]) return aes.createDecipheriv(suite, key, iv)\n  if (desModes[suite]) return new DES({ key: key, iv: iv, mode: suite, decrypt: true })\n\n  throw new TypeError('invalid suite type')\n}\n\nfunction getCiphers () {\n  return Object.keys(desModes).concat(aes.getCiphers())\n}\n\nexports.createCipher = exports.Cipher = createCipher\nexports.createCipheriv = exports.Cipheriv = createCipheriv\nexports.createDecipher = exports.Decipher = createDecipher\nexports.createDecipheriv = exports.Decipheriv = createDecipheriv\nexports.listCiphers = exports.getCiphers = getCiphers\n","var CipherBase = require('cipher-base')\nvar des = require('des.js')\nvar inherits = require('inherits')\nvar Buffer = require('safe-buffer').Buffer\n\nvar modes = {\n  'des-ede3-cbc': des.CBC.instantiate(des.EDE),\n  'des-ede3': des.EDE,\n  'des-ede-cbc': des.CBC.instantiate(des.EDE),\n  'des-ede': des.EDE,\n  'des-cbc': des.CBC.instantiate(des.DES),\n  'des-ecb': des.DES\n}\nmodes.des = modes['des-cbc']\nmodes.des3 = modes['des-ede3-cbc']\nmodule.exports = DES\ninherits(DES, CipherBase)\nfunction DES (opts) {\n  CipherBase.call(this)\n  var modeName = opts.mode.toLowerCase()\n  var mode = modes[modeName]\n  var type\n  if (opts.decrypt) {\n    type = 'decrypt'\n  } else {\n    type = 'encrypt'\n  }\n  var key = opts.key\n  if (!Buffer.isBuffer(key)) {\n    key = Buffer.from(key)\n  }\n  if (modeName === 'des-ede' || modeName === 'des-ede-cbc') {\n    key = Buffer.concat([key, key.slice(0, 8)])\n  }\n  var iv = opts.iv\n  if (!Buffer.isBuffer(iv)) {\n    iv = Buffer.from(iv)\n  }\n  this._des = mode.create({\n    key: key,\n    iv: iv,\n    type: type\n  })\n}\nDES.prototype._update = function (data) {\n  return Buffer.from(this._des.update(data))\n}\nDES.prototype._final = function () {\n  return Buffer.from(this._des.final())\n}\n","exports['des-ecb'] = {\n  key: 8,\n  iv: 0\n}\nexports['des-cbc'] = exports.des = {\n  key: 8,\n  iv: 8\n}\nexports['des-ede3-cbc'] = exports.des3 = {\n  key: 24,\n  iv: 8\n}\nexports['des-ede3'] = {\n  key: 24,\n  iv: 0\n}\nexports['des-ede-cbc'] = {\n  key: 16,\n  iv: 8\n}\nexports['des-ede'] = {\n  key: 16,\n  iv: 0\n}\n","var bn = require('bn.js');\nvar randomBytes = require('randombytes');\nmodule.exports = crt;\nfunction blind(priv) {\n  var r = getr(priv);\n  var blinder = r.toRed(bn.mont(priv.modulus))\n  .redPow(new bn(priv.publicExponent)).fromRed();\n  return {\n    blinder: blinder,\n    unblinder:r.invm(priv.modulus)\n  };\n}\nfunction crt(msg, priv) {\n  var blinds = blind(priv);\n  var len = priv.modulus.byteLength();\n  var mod = bn.mont(priv.modulus);\n  var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus);\n  var c1 = blinded.toRed(bn.mont(priv.prime1));\n  var c2 = blinded.toRed(bn.mont(priv.prime2));\n  var qinv = priv.coefficient;\n  var p = priv.prime1;\n  var q = priv.prime2;\n  var m1 = c1.redPow(priv.exponent1);\n  var m2 = c2.redPow(priv.exponent2);\n  m1 = m1.fromRed();\n  m2 = m2.fromRed();\n  var h = m1.isub(m2).imul(qinv).umod(p);\n  h.imul(q);\n  m2.iadd(h);\n  return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len));\n}\ncrt.getr = getr;\nfunction getr(priv) {\n  var len = priv.modulus.byteLength();\n  var r = new bn(randomBytes(len));\n  while (r.cmp(priv.modulus) >=  0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) {\n    r = new bn(randomBytes(len));\n  }\n  return r;\n}\n","module.exports = require('./browser/algorithms.json')\n","module.exports={\n  \"sha224WithRSAEncryption\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"sha224\",\n    \"id\": \"302d300d06096086480165030402040500041c\"\n  },\n  \"RSA-SHA224\": {\n    \"sign\": \"ecdsa/rsa\",\n    \"hash\": \"sha224\",\n    \"id\": \"302d300d06096086480165030402040500041c\"\n  },\n  \"sha256WithRSAEncryption\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"sha256\",\n    \"id\": \"3031300d060960864801650304020105000420\"\n  },\n  \"RSA-SHA256\": {\n    \"sign\": \"ecdsa/rsa\",\n    \"hash\": \"sha256\",\n    \"id\": \"3031300d060960864801650304020105000420\"\n  },\n  \"sha384WithRSAEncryption\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"sha384\",\n    \"id\": \"3041300d060960864801650304020205000430\"\n  },\n  \"RSA-SHA384\": {\n    \"sign\": \"ecdsa/rsa\",\n    \"hash\": \"sha384\",\n    \"id\": \"3041300d060960864801650304020205000430\"\n  },\n  \"sha512WithRSAEncryption\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"sha512\",\n    \"id\": \"3051300d060960864801650304020305000440\"\n  },\n  \"RSA-SHA512\": {\n    \"sign\": \"ecdsa/rsa\",\n    \"hash\": \"sha512\",\n    \"id\": \"3051300d060960864801650304020305000440\"\n  },\n  \"RSA-SHA1\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"sha1\",\n    \"id\": \"3021300906052b0e03021a05000414\"\n  },\n  \"ecdsa-with-SHA1\": {\n    \"sign\": \"ecdsa\",\n    \"hash\": \"sha1\",\n    \"id\": \"\"\n  },\n  \"sha256\": {\n    \"sign\": \"ecdsa\",\n    \"hash\": \"sha256\",\n    \"id\": \"\"\n  },\n  \"sha224\": {\n    \"sign\": \"ecdsa\",\n    \"hash\": \"sha224\",\n    \"id\": \"\"\n  },\n  \"sha384\": {\n    \"sign\": \"ecdsa\",\n    \"hash\": \"sha384\",\n    \"id\": \"\"\n  },\n  \"sha512\": {\n    \"sign\": \"ecdsa\",\n    \"hash\": \"sha512\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha1\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA1\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha1\",\n    \"id\": \"\"\n  },\n  \"DSA\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha1\",\n    \"id\": \"\"\n  },\n  \"DSA-WITH-SHA224\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha224\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA224\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha224\",\n    \"id\": \"\"\n  },\n  \"DSA-WITH-SHA256\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha256\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA256\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha256\",\n    \"id\": \"\"\n  },\n  \"DSA-WITH-SHA384\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha384\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA384\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha384\",\n    \"id\": \"\"\n  },\n  \"DSA-WITH-SHA512\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha512\",\n    \"id\": \"\"\n  },\n  \"DSA-SHA512\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"sha512\",\n    \"id\": \"\"\n  },\n  \"DSA-RIPEMD160\": {\n    \"sign\": \"dsa\",\n    \"hash\": \"rmd160\",\n    \"id\": \"\"\n  },\n  \"ripemd160WithRSA\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"rmd160\",\n    \"id\": \"3021300906052b2403020105000414\"\n  },\n  \"RSA-RIPEMD160\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"rmd160\",\n    \"id\": \"3021300906052b2403020105000414\"\n  },\n  \"md5WithRSAEncryption\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"md5\",\n    \"id\": \"3020300c06082a864886f70d020505000410\"\n  },\n  \"RSA-MD5\": {\n    \"sign\": \"rsa\",\n    \"hash\": \"md5\",\n    \"id\": \"3020300c06082a864886f70d020505000410\"\n  }\n}\n","module.exports={\n  \"1.3.132.0.10\": \"secp256k1\",\n  \"1.3.132.0.33\": \"p224\",\n  \"1.2.840.10045.3.1.1\": \"p192\",\n  \"1.2.840.10045.3.1.7\": \"p256\",\n  \"1.3.132.0.34\": \"p384\",\n  \"1.3.132.0.35\": \"p521\"\n}\n","var createHash = require('create-hash')\nvar stream = require('stream')\nvar inherits = require('inherits')\nvar sign = require('./sign')\nvar verify = require('./verify')\n\nvar algorithms = require('./algorithms.json')\nObject.keys(algorithms).forEach(function (key) {\n  algorithms[key].id = new Buffer(algorithms[key].id, 'hex')\n  algorithms[key.toLowerCase()] = algorithms[key]\n})\n\nfunction Sign (algorithm) {\n  stream.Writable.call(this)\n\n  var data = algorithms[algorithm]\n  if (!data) throw new Error('Unknown message digest')\n\n  this._hashType = data.hash\n  this._hash = createHash(data.hash)\n  this._tag = data.id\n  this._signType = data.sign\n}\ninherits(Sign, stream.Writable)\n\nSign.prototype._write = function _write (data, _, done) {\n  this._hash.update(data)\n  done()\n}\n\nSign.prototype.update = function update (data, enc) {\n  if (typeof data === 'string') data = new Buffer(data, enc)\n\n  this._hash.update(data)\n  return this\n}\n\nSign.prototype.sign = function signMethod (key, enc) {\n  this.end()\n  var hash = this._hash.digest()\n  var sig = sign(hash, key, this._hashType, this._signType, this._tag)\n\n  return enc ? sig.toString(enc) : sig\n}\n\nfunction Verify (algorithm) {\n  stream.Writable.call(this)\n\n  var data = algorithms[algorithm]\n  if (!data) throw new Error('Unknown message digest')\n\n  this._hash = createHash(data.hash)\n  this._tag = data.id\n  this._signType = data.sign\n}\ninherits(Verify, stream.Writable)\n\nVerify.prototype._write = function _write (data, _, done) {\n  this._hash.update(data)\n  done()\n}\n\nVerify.prototype.update = function update (data, enc) {\n  if (typeof data === 'string') data = new Buffer(data, enc)\n\n  this._hash.update(data)\n  return this\n}\n\nVerify.prototype.verify = function verifyMethod (key, sig, enc) {\n  if (typeof sig === 'string') sig = new Buffer(sig, enc)\n\n  this.end()\n  var hash = this._hash.digest()\n  return verify(sig, hash, key, this._signType, this._tag)\n}\n\nfunction createSign (algorithm) {\n  return new Sign(algorithm)\n}\n\nfunction createVerify (algorithm) {\n  return new Verify(algorithm)\n}\n\nmodule.exports = {\n  Sign: createSign,\n  Verify: createVerify,\n  createSign: createSign,\n  createVerify: createVerify\n}\n","// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js\nvar createHmac = require('create-hmac')\nvar crt = require('browserify-rsa')\nvar EC = require('elliptic').ec\nvar BN = require('bn.js')\nvar parseKeys = require('parse-asn1')\nvar curves = require('./curves.json')\n\nfunction sign (hash, key, hashType, signType, tag) {\n  var priv = parseKeys(key)\n  if (priv.curve) {\n    // rsa keys can be interpreted as ecdsa ones in openssl\n    if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type')\n    return ecSign(hash, priv)\n  } else if (priv.type === 'dsa') {\n    if (signType !== 'dsa') throw new Error('wrong private key type')\n    return dsaSign(hash, priv, hashType)\n  } else {\n    if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type')\n  }\n  hash = Buffer.concat([tag, hash])\n  var len = priv.modulus.byteLength()\n  var pad = [ 0, 1 ]\n  while (hash.length + pad.length + 1 < len) pad.push(0xff)\n  pad.push(0x00)\n  var i = -1\n  while (++i < hash.length) pad.push(hash[i])\n\n  var out = crt(pad, priv)\n  return out\n}\n\nfunction ecSign (hash, priv) {\n  var curveId = curves[priv.curve.join('.')]\n  if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.'))\n\n  var curve = new EC(curveId)\n  var key = curve.keyFromPrivate(priv.privateKey)\n  var out = key.sign(hash)\n\n  return new Buffer(out.toDER())\n}\n\nfunction dsaSign (hash, priv, algo) {\n  var x = priv.params.priv_key\n  var p = priv.params.p\n  var q = priv.params.q\n  var g = priv.params.g\n  var r = new BN(0)\n  var k\n  var H = bits2int(hash, q).mod(q)\n  var s = false\n  var kv = getKey(x, q, hash, algo)\n  while (s === false) {\n    k = makeKey(q, kv, algo)\n    r = makeR(g, k, p, q)\n    s = k.invm(q).imul(H.add(x.mul(r))).mod(q)\n    if (s.cmpn(0) === 0) {\n      s = false\n      r = new BN(0)\n    }\n  }\n  return toDER(r, s)\n}\n\nfunction toDER (r, s) {\n  r = r.toArray()\n  s = s.toArray()\n\n  // Pad values\n  if (r[0] & 0x80) r = [ 0 ].concat(r)\n  if (s[0] & 0x80) s = [ 0 ].concat(s)\n\n  var total = r.length + s.length + 4\n  var res = [ 0x30, total, 0x02, r.length ]\n  res = res.concat(r, [ 0x02, s.length ], s)\n  return new Buffer(res)\n}\n\nfunction getKey (x, q, hash, algo) {\n  x = new Buffer(x.toArray())\n  if (x.length < q.byteLength()) {\n    var zeros = new Buffer(q.byteLength() - x.length)\n    zeros.fill(0)\n    x = Buffer.concat([ zeros, x ])\n  }\n  var hlen = hash.length\n  var hbits = bits2octets(hash, q)\n  var v = new Buffer(hlen)\n  v.fill(1)\n  var k = new Buffer(hlen)\n  k.fill(0)\n  k = createHmac(algo, k).update(v).update(new Buffer([ 0 ])).update(x).update(hbits).digest()\n  v = createHmac(algo, k).update(v).digest()\n  k = createHmac(algo, k).update(v).update(new Buffer([ 1 ])).update(x).update(hbits).digest()\n  v = createHmac(algo, k).update(v).digest()\n  return { k: k, v: v }\n}\n\nfunction bits2int (obits, q) {\n  var bits = new BN(obits)\n  var shift = (obits.length << 3) - q.bitLength()\n  if (shift > 0) bits.ishrn(shift)\n  return bits\n}\n\nfunction bits2octets (bits, q) {\n  bits = bits2int(bits, q)\n  bits = bits.mod(q)\n  var out = new Buffer(bits.toArray())\n  if (out.length < q.byteLength()) {\n    var zeros = new Buffer(q.byteLength() - out.length)\n    zeros.fill(0)\n    out = Buffer.concat([ zeros, out ])\n  }\n  return out\n}\n\nfunction makeKey (q, kv, algo) {\n  var t\n  var k\n\n  do {\n    t = new Buffer(0)\n\n    while (t.length * 8 < q.bitLength()) {\n      kv.v = createHmac(algo, kv.k).update(kv.v).digest()\n      t = Buffer.concat([ t, kv.v ])\n    }\n\n    k = bits2int(t, q)\n    kv.k = createHmac(algo, kv.k).update(kv.v).update(new Buffer([ 0 ])).digest()\n    kv.v = createHmac(algo, kv.k).update(kv.v).digest()\n  } while (k.cmp(q) !== -1)\n\n  return k\n}\n\nfunction makeR (g, k, p, q) {\n  return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q)\n}\n\nmodule.exports = sign\nmodule.exports.getKey = getKey\nmodule.exports.makeKey = makeKey\n","// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js\nvar BN = require('bn.js')\nvar EC = require('elliptic').ec\nvar parseKeys = require('parse-asn1')\nvar curves = require('./curves.json')\n\nfunction verify (sig, hash, key, signType, tag) {\n  var pub = parseKeys(key)\n  if (pub.type === 'ec') {\n    // rsa keys can be interpreted as ecdsa ones in openssl\n    if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type')\n    return ecVerify(sig, hash, pub)\n  } else if (pub.type === 'dsa') {\n    if (signType !== 'dsa') throw new Error('wrong public key type')\n    return dsaVerify(sig, hash, pub)\n  } else {\n    if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type')\n  }\n  hash = Buffer.concat([tag, hash])\n  var len = pub.modulus.byteLength()\n  var pad = [ 1 ]\n  var padNum = 0\n  while (hash.length + pad.length + 2 < len) {\n    pad.push(0xff)\n    padNum++\n  }\n  pad.push(0x00)\n  var i = -1\n  while (++i < hash.length) {\n    pad.push(hash[i])\n  }\n  pad = new Buffer(pad)\n  var red = BN.mont(pub.modulus)\n  sig = new BN(sig).toRed(red)\n\n  sig = sig.redPow(new BN(pub.publicExponent))\n  sig = new Buffer(sig.fromRed().toArray())\n  var out = padNum < 8 ? 1 : 0\n  len = Math.min(sig.length, pad.length)\n  if (sig.length !== pad.length) out = 1\n\n  i = -1\n  while (++i < len) out |= sig[i] ^ pad[i]\n  return out === 0\n}\n\nfunction ecVerify (sig, hash, pub) {\n  var curveId = curves[pub.data.algorithm.curve.join('.')]\n  if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.'))\n\n  var curve = new EC(curveId)\n  var pubkey = pub.data.subjectPrivateKey.data\n\n  return curve.verify(hash, sig, pubkey)\n}\n\nfunction dsaVerify (sig, hash, pub) {\n  var p = pub.data.p\n  var q = pub.data.q\n  var g = pub.data.g\n  var y = pub.data.pub_key\n  var unpacked = parseKeys.signature.decode(sig, 'der')\n  var s = unpacked.s\n  var r = unpacked.r\n  checkValue(s, q)\n  checkValue(r, q)\n  var montp = BN.mont(p)\n  var w = s.invm(q)\n  var v = g.toRed(montp)\n    .redPow(new BN(hash).mul(w).mod(q))\n    .fromRed()\n    .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed())\n    .mod(p)\n    .mod(q)\n  return v.cmp(r) === 0\n}\n\nfunction checkValue (b, q) {\n  if (b.cmpn(0) <= 0) throw new Error('invalid sig')\n  if (b.cmp(q) >= q) throw new Error('invalid sig')\n}\n\nmodule.exports = verify\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\n/*</replacement>*/\n\nvar isEncoding = Buffer.isEncoding || function (encoding) {\n  encoding = '' + encoding;\n  switch (encoding && encoding.toLowerCase()) {\n    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':\n      return true;\n    default:\n      return false;\n  }\n};\n\nfunction _normalizeEncoding(enc) {\n  if (!enc) return 'utf8';\n  var retried;\n  while (true) {\n    switch (enc) {\n      case 'utf8':\n      case 'utf-8':\n        return 'utf8';\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return 'utf16le';\n      case 'latin1':\n      case 'binary':\n        return 'latin1';\n      case 'base64':\n      case 'ascii':\n      case 'hex':\n        return enc;\n      default:\n        if (retried) return; // undefined\n        enc = ('' + enc).toLowerCase();\n        retried = true;\n    }\n  }\n};\n\n// Do not cache `Buffer.isEncoding` when checking encoding names as some\n// modules monkey-patch it to support additional encodings\nfunction normalizeEncoding(enc) {\n  var nenc = _normalizeEncoding(enc);\n  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);\n  return nenc || enc;\n}\n\n// StringDecoder provides an interface for efficiently splitting a series of\n// buffers into a series of JS strings without breaking apart multi-byte\n// characters.\nexports.StringDecoder = StringDecoder;\nfunction StringDecoder(encoding) {\n  this.encoding = normalizeEncoding(encoding);\n  var nb;\n  switch (this.encoding) {\n    case 'utf16le':\n      this.text = utf16Text;\n      this.end = utf16End;\n      nb = 4;\n      break;\n    case 'utf8':\n      this.fillLast = utf8FillLast;\n      nb = 4;\n      break;\n    case 'base64':\n      this.text = base64Text;\n      this.end = base64End;\n      nb = 3;\n      break;\n    default:\n      this.write = simpleWrite;\n      this.end = simpleEnd;\n      return;\n  }\n  this.lastNeed = 0;\n  this.lastTotal = 0;\n  this.lastChar = Buffer.allocUnsafe(nb);\n}\n\nStringDecoder.prototype.write = function (buf) {\n  if (buf.length === 0) return '';\n  var r;\n  var i;\n  if (this.lastNeed) {\n    r = this.fillLast(buf);\n    if (r === undefined) return '';\n    i = this.lastNeed;\n    this.lastNeed = 0;\n  } else {\n    i = 0;\n  }\n  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);\n  return r || '';\n};\n\nStringDecoder.prototype.end = utf8End;\n\n// Returns only complete characters in a Buffer\nStringDecoder.prototype.text = utf8Text;\n\n// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer\nStringDecoder.prototype.fillLast = function (buf) {\n  if (this.lastNeed <= buf.length) {\n    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);\n    return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n  }\n  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);\n  this.lastNeed -= buf.length;\n};\n\n// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a\n// continuation byte. If an invalid byte is detected, -2 is returned.\nfunction utf8CheckByte(byte) {\n  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;\n  return byte >> 6 === 0x02 ? -1 : -2;\n}\n\n// Checks at most 3 bytes at the end of a Buffer in order to detect an\n// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)\n// needed to complete the UTF-8 character (if applicable) are returned.\nfunction utf8CheckIncomplete(self, buf, i) {\n  var j = buf.length - 1;\n  if (j < i) return 0;\n  var nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) self.lastNeed = nb - 1;\n    return nb;\n  }\n  if (--j < i || nb === -2) return 0;\n  nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) self.lastNeed = nb - 2;\n    return nb;\n  }\n  if (--j < i || nb === -2) return 0;\n  nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) {\n      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;\n    }\n    return nb;\n  }\n  return 0;\n}\n\n// Validates as many continuation bytes for a multi-byte UTF-8 character as\n// needed or are available. If we see a non-continuation byte where we expect\n// one, we \"replace\" the validated continuation bytes we've seen so far with\n// a single UTF-8 replacement character ('\\ufffd'), to match v8's UTF-8 decoding\n// behavior. The continuation byte check is included three times in the case\n// where all of the continuation bytes for a character exist in the same buffer.\n// It is also done this way as a slight performance increase instead of using a\n// loop.\nfunction utf8CheckExtraBytes(self, buf, p) {\n  if ((buf[0] & 0xC0) !== 0x80) {\n    self.lastNeed = 0;\n    return '\\ufffd';\n  }\n  if (self.lastNeed > 1 && buf.length > 1) {\n    if ((buf[1] & 0xC0) !== 0x80) {\n      self.lastNeed = 1;\n      return '\\ufffd';\n    }\n    if (self.lastNeed > 2 && buf.length > 2) {\n      if ((buf[2] & 0xC0) !== 0x80) {\n        self.lastNeed = 2;\n        return '\\ufffd';\n      }\n    }\n  }\n}\n\n// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.\nfunction utf8FillLast(buf) {\n  var p = this.lastTotal - this.lastNeed;\n  var r = utf8CheckExtraBytes(this, buf, p);\n  if (r !== undefined) return r;\n  if (this.lastNeed <= buf.length) {\n    buf.copy(this.lastChar, p, 0, this.lastNeed);\n    return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n  }\n  buf.copy(this.lastChar, p, 0, buf.length);\n  this.lastNeed -= buf.length;\n}\n\n// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a\n// partial character, the character's bytes are buffered until the required\n// number of bytes are available.\nfunction utf8Text(buf, i) {\n  var total = utf8CheckIncomplete(this, buf, i);\n  if (!this.lastNeed) return buf.toString('utf8', i);\n  this.lastTotal = total;\n  var end = buf.length - (total - this.lastNeed);\n  buf.copy(this.lastChar, 0, end);\n  return buf.toString('utf8', i, end);\n}\n\n// For UTF-8, a replacement character is added when ending on a partial\n// character.\nfunction utf8End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) return r + '\\ufffd';\n  return r;\n}\n\n// UTF-16LE typically needs two bytes per character, but even if we have an even\n// number of bytes available, we need to check if we end on a leading/high\n// surrogate. In that case, we need to wait for the next two bytes in order to\n// decode the last character properly.\nfunction utf16Text(buf, i) {\n  if ((buf.length - i) % 2 === 0) {\n    var r = buf.toString('utf16le', i);\n    if (r) {\n      var c = r.charCodeAt(r.length - 1);\n      if (c >= 0xD800 && c <= 0xDBFF) {\n        this.lastNeed = 2;\n        this.lastTotal = 4;\n        this.lastChar[0] = buf[buf.length - 2];\n        this.lastChar[1] = buf[buf.length - 1];\n        return r.slice(0, -1);\n      }\n    }\n    return r;\n  }\n  this.lastNeed = 1;\n  this.lastTotal = 2;\n  this.lastChar[0] = buf[buf.length - 1];\n  return buf.toString('utf16le', i, buf.length - 1);\n}\n\n// For UTF-16LE we do not explicitly append special replacement characters if we\n// end on a partial character, we simply let v8 handle that.\nfunction utf16End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) {\n    var end = this.lastTotal - this.lastNeed;\n    return r + this.lastChar.toString('utf16le', 0, end);\n  }\n  return r;\n}\n\nfunction base64Text(buf, i) {\n  var n = (buf.length - i) % 3;\n  if (n === 0) return buf.toString('base64', i);\n  this.lastNeed = 3 - n;\n  this.lastTotal = 3;\n  if (n === 1) {\n    this.lastChar[0] = buf[buf.length - 1];\n  } else {\n    this.lastChar[0] = buf[buf.length - 2];\n    this.lastChar[1] = buf[buf.length - 1];\n  }\n  return buf.toString('base64', i, buf.length - n);\n}\n\nfunction base64End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);\n  return r;\n}\n\n// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)\nfunction simpleWrite(buf) {\n  return buf.toString(this.encoding);\n}\n\nfunction simpleEnd(buf) {\n  return buf && buf.length ? this.write(buf) : '';\n}","module.exports = function xor (a, b) {\n  var length = Math.min(a.length, b.length)\n  var buffer = new Buffer(length)\n\n  for (var i = 0; i < length; ++i) {\n    buffer[i] = a[i] ^ b[i]\n  }\n\n  return buffer\n}\n","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author   Feross Aboukhadijeh <https://feross.org>\n * @license  MIT\n */\n/* eslint-disable no-proto */\n\n'use strict'\n\nvar base64 = require('base64-js')\nvar ieee754 = require('ieee754')\nvar customInspectSymbol =\n  (typeof Symbol === 'function' && typeof Symbol.for === 'function')\n    ? Symbol.for('nodejs.util.inspect.custom')\n    : null\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\nvar K_MAX_LENGTH = 0x7fffffff\nexports.kMaxLength = K_MAX_LENGTH\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n *   === true    Use Uint8Array implementation (fastest)\n *   === false   Print warning and recommend using `buffer` v4.x which has an Object\n *               implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * We report that the browser does not support typed arrays if the are not subclassable\n * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`\n * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support\n * for __proto__ and has a buggy typed array implementation.\n */\nBuffer.TYPED_ARRAY_SUPPORT = typedArraySupport()\n\nif (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&\n    typeof console.error === 'function') {\n  console.error(\n    'This browser lacks typed array (Uint8Array) support which is required by ' +\n    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'\n  )\n}\n\nfunction typedArraySupport () {\n  // Can typed array instances can be augmented?\n  try {\n    var arr = new Uint8Array(1)\n    var proto = { foo: function () { return 42 } }\n    Object.setPrototypeOf(proto, Uint8Array.prototype)\n    Object.setPrototypeOf(arr, proto)\n    return arr.foo() === 42\n  } catch (e) {\n    return false\n  }\n}\n\nObject.defineProperty(Buffer.prototype, 'parent', {\n  enumerable: true,\n  get: function () {\n    if (!Buffer.isBuffer(this)) return undefined\n    return this.buffer\n  }\n})\n\nObject.defineProperty(Buffer.prototype, 'offset', {\n  enumerable: true,\n  get: function () {\n    if (!Buffer.isBuffer(this)) return undefined\n    return this.byteOffset\n  }\n})\n\nfunction createBuffer (length) {\n  if (length > K_MAX_LENGTH) {\n    throw new RangeError('The value \"' + length + '\" is invalid for option \"size\"')\n  }\n  // Return an augmented `Uint8Array` instance\n  var buf = new Uint8Array(length)\n  Object.setPrototypeOf(buf, Buffer.prototype)\n  return buf\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n  // Common case.\n  if (typeof arg === 'number') {\n    if (typeof encodingOrOffset === 'string') {\n      throw new TypeError(\n        'The \"string\" argument must be of type string. Received type number'\n      )\n    }\n    return allocUnsafe(arg)\n  }\n  return from(arg, encodingOrOffset, length)\n}\n\n// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\nif (typeof Symbol !== 'undefined' && Symbol.species != null &&\n    Buffer[Symbol.species] === Buffer) {\n  Object.defineProperty(Buffer, Symbol.species, {\n    value: null,\n    configurable: true,\n    enumerable: false,\n    writable: false\n  })\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\nfunction from (value, encodingOrOffset, length) {\n  if (typeof value === 'string') {\n    return fromString(value, encodingOrOffset)\n  }\n\n  if (ArrayBuffer.isView(value)) {\n    return fromArrayLike(value)\n  }\n\n  if (value == null) {\n    throw new TypeError(\n      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n      'or Array-like Object. Received type ' + (typeof value)\n    )\n  }\n\n  if (isInstance(value, ArrayBuffer) ||\n      (value && isInstance(value.buffer, ArrayBuffer))) {\n    return fromArrayBuffer(value, encodingOrOffset, length)\n  }\n\n  if (typeof value === 'number') {\n    throw new TypeError(\n      'The \"value\" argument must not be of type number. Received type number'\n    )\n  }\n\n  var valueOf = value.valueOf && value.valueOf()\n  if (valueOf != null && valueOf !== value) {\n    return Buffer.from(valueOf, encodingOrOffset, length)\n  }\n\n  var b = fromObject(value)\n  if (b) return b\n\n  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&\n      typeof value[Symbol.toPrimitive] === 'function') {\n    return Buffer.from(\n      value[Symbol.toPrimitive]('string'), encodingOrOffset, length\n    )\n  }\n\n  throw new TypeError(\n    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n    'or Array-like Object. Received type ' + (typeof value)\n  )\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n  return from(value, encodingOrOffset, length)\n}\n\n// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:\n// https://github.com/feross/buffer/pull/148\nObject.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)\nObject.setPrototypeOf(Buffer, Uint8Array)\n\nfunction assertSize (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('\"size\" argument must be of type number')\n  } else if (size < 0) {\n    throw new RangeError('The value \"' + size + '\" is invalid for option \"size\"')\n  }\n}\n\nfunction alloc (size, fill, encoding) {\n  assertSize(size)\n  if (size <= 0) {\n    return createBuffer(size)\n  }\n  if (fill !== undefined) {\n    // Only pay attention to encoding if it's a string. This\n    // prevents accidentally sending in a number that would\n    // be interpretted as a start offset.\n    return typeof encoding === 'string'\n      ? createBuffer(size).fill(fill, encoding)\n      : createBuffer(size).fill(fill)\n  }\n  return createBuffer(size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n  return alloc(size, fill, encoding)\n}\n\nfunction allocUnsafe (size) {\n  assertSize(size)\n  return createBuffer(size < 0 ? 0 : checked(size) | 0)\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n  return allocUnsafe(size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n  return allocUnsafe(size)\n}\n\nfunction fromString (string, encoding) {\n  if (typeof encoding !== 'string' || encoding === '') {\n    encoding = 'utf8'\n  }\n\n  if (!Buffer.isEncoding(encoding)) {\n    throw new TypeError('Unknown encoding: ' + encoding)\n  }\n\n  var length = byteLength(string, encoding) | 0\n  var buf = createBuffer(length)\n\n  var actual = buf.write(string, encoding)\n\n  if (actual !== length) {\n    // Writing a hex string, for example, that contains invalid characters will\n    // cause everything after the first invalid character to be ignored. (e.g.\n    // 'abxxcd' will be treated as 'ab')\n    buf = buf.slice(0, actual)\n  }\n\n  return buf\n}\n\nfunction fromArrayLike (array) {\n  var length = array.length < 0 ? 0 : checked(array.length) | 0\n  var buf = createBuffer(length)\n  for (var i = 0; i < length; i += 1) {\n    buf[i] = array[i] & 255\n  }\n  return buf\n}\n\nfunction fromArrayBuffer (array, byteOffset, length) {\n  if (byteOffset < 0 || array.byteLength < byteOffset) {\n    throw new RangeError('\"offset\" is outside of buffer bounds')\n  }\n\n  if (array.byteLength < byteOffset + (length || 0)) {\n    throw new RangeError('\"length\" is outside of buffer bounds')\n  }\n\n  var buf\n  if (byteOffset === undefined && length === undefined) {\n    buf = new Uint8Array(array)\n  } else if (length === undefined) {\n    buf = new Uint8Array(array, byteOffset)\n  } else {\n    buf = new Uint8Array(array, byteOffset, length)\n  }\n\n  // Return an augmented `Uint8Array` instance\n  Object.setPrototypeOf(buf, Buffer.prototype)\n\n  return buf\n}\n\nfunction fromObject (obj) {\n  if (Buffer.isBuffer(obj)) {\n    var len = checked(obj.length) | 0\n    var buf = createBuffer(len)\n\n    if (buf.length === 0) {\n      return buf\n    }\n\n    obj.copy(buf, 0, 0, len)\n    return buf\n  }\n\n  if (obj.length !== undefined) {\n    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {\n      return createBuffer(0)\n    }\n    return fromArrayLike(obj)\n  }\n\n  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {\n    return fromArrayLike(obj.data)\n  }\n}\n\nfunction checked (length) {\n  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when\n  // length is NaN (which is otherwise coerced to zero.)\n  if (length >= K_MAX_LENGTH) {\n    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')\n  }\n  return length | 0\n}\n\nfunction SlowBuffer (length) {\n  if (+length != length) { // eslint-disable-line eqeqeq\n    length = 0\n  }\n  return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n  return b != null && b._isBuffer === true &&\n    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false\n}\n\nBuffer.compare = function compare (a, b) {\n  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)\n  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)\n  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n    throw new TypeError(\n      'The \"buf1\", \"buf2\" arguments must be one of type Buffer or Uint8Array'\n    )\n  }\n\n  if (a === b) return 0\n\n  var x = a.length\n  var y = b.length\n\n  for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n    if (a[i] !== b[i]) {\n      x = a[i]\n      y = b[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n  switch (String(encoding).toLowerCase()) {\n    case 'hex':\n    case 'utf8':\n    case 'utf-8':\n    case 'ascii':\n    case 'latin1':\n    case 'binary':\n    case 'base64':\n    case 'ucs2':\n    case 'ucs-2':\n    case 'utf16le':\n    case 'utf-16le':\n      return true\n    default:\n      return false\n  }\n}\n\nBuffer.concat = function concat (list, length) {\n  if (!Array.isArray(list)) {\n    throw new TypeError('\"list\" argument must be an Array of Buffers')\n  }\n\n  if (list.length === 0) {\n    return Buffer.alloc(0)\n  }\n\n  var i\n  if (length === undefined) {\n    length = 0\n    for (i = 0; i < list.length; ++i) {\n      length += list[i].length\n    }\n  }\n\n  var buffer = Buffer.allocUnsafe(length)\n  var pos = 0\n  for (i = 0; i < list.length; ++i) {\n    var buf = list[i]\n    if (isInstance(buf, Uint8Array)) {\n      buf = Buffer.from(buf)\n    }\n    if (!Buffer.isBuffer(buf)) {\n      throw new TypeError('\"list\" argument must be an Array of Buffers')\n    }\n    buf.copy(buffer, pos)\n    pos += buf.length\n  }\n  return buffer\n}\n\nfunction byteLength (string, encoding) {\n  if (Buffer.isBuffer(string)) {\n    return string.length\n  }\n  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {\n    return string.byteLength\n  }\n  if (typeof string !== 'string') {\n    throw new TypeError(\n      'The \"string\" argument must be one of type string, Buffer, or ArrayBuffer. ' +\n      'Received type ' + typeof string\n    )\n  }\n\n  var len = string.length\n  var mustMatch = (arguments.length > 2 && arguments[2] === true)\n  if (!mustMatch && len === 0) return 0\n\n  // Use a for loop to avoid recursion\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'ascii':\n      case 'latin1':\n      case 'binary':\n        return len\n      case 'utf8':\n      case 'utf-8':\n        return utf8ToBytes(string).length\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return len * 2\n      case 'hex':\n        return len >>> 1\n      case 'base64':\n        return base64ToBytes(string).length\n      default:\n        if (loweredCase) {\n          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8\n        }\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n  var loweredCase = false\n\n  // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n  // property of a typed array.\n\n  // This behaves neither like String nor Uint8Array in that we set start/end\n  // to their upper/lower bounds if the value passed is out of range.\n  // undefined is handled specially as per ECMA-262 6th Edition,\n  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n  if (start === undefined || start < 0) {\n    start = 0\n  }\n  // Return early if start > this.length. Done here to prevent potential uint32\n  // coercion fail below.\n  if (start > this.length) {\n    return ''\n  }\n\n  if (end === undefined || end > this.length) {\n    end = this.length\n  }\n\n  if (end <= 0) {\n    return ''\n  }\n\n  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n  end >>>= 0\n  start >>>= 0\n\n  if (end <= start) {\n    return ''\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  while (true) {\n    switch (encoding) {\n      case 'hex':\n        return hexSlice(this, start, end)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Slice(this, start, end)\n\n      case 'ascii':\n        return asciiSlice(this, start, end)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Slice(this, start, end)\n\n      case 'base64':\n        return base64Slice(this, start, end)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return utf16leSlice(this, start, end)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = (encoding + '').toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\n// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)\n// to detect a Buffer instance. It's not possible to use `instanceof Buffer`\n// reliably in a browserify context because there could be multiple different\n// copies of the 'buffer' package in use. This method works even for Buffer\n// instances that were created from another copy of the `buffer` package.\n// See: https://github.com/feross/buffer/issues/154\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n  var i = b[n]\n  b[n] = b[m]\n  b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n  var len = this.length\n  if (len % 2 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 16-bits')\n  }\n  for (var i = 0; i < len; i += 2) {\n    swap(this, i, i + 1)\n  }\n  return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n  var len = this.length\n  if (len % 4 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 32-bits')\n  }\n  for (var i = 0; i < len; i += 4) {\n    swap(this, i, i + 3)\n    swap(this, i + 1, i + 2)\n  }\n  return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n  var len = this.length\n  if (len % 8 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 64-bits')\n  }\n  for (var i = 0; i < len; i += 8) {\n    swap(this, i, i + 7)\n    swap(this, i + 1, i + 6)\n    swap(this, i + 2, i + 5)\n    swap(this, i + 3, i + 4)\n  }\n  return this\n}\n\nBuffer.prototype.toString = function toString () {\n  var length = this.length\n  if (length === 0) return ''\n  if (arguments.length === 0) return utf8Slice(this, 0, length)\n  return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.toLocaleString = Buffer.prototype.toString\n\nBuffer.prototype.equals = function equals (b) {\n  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n  if (this === b) return true\n  return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n  var str = ''\n  var max = exports.INSPECT_MAX_BYTES\n  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()\n  if (this.length > max) str += ' ... '\n  return '<Buffer ' + str + '>'\n}\nif (customInspectSymbol) {\n  Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n  if (isInstance(target, Uint8Array)) {\n    target = Buffer.from(target, target.offset, target.byteLength)\n  }\n  if (!Buffer.isBuffer(target)) {\n    throw new TypeError(\n      'The \"target\" argument must be one of type Buffer or Uint8Array. ' +\n      'Received type ' + (typeof target)\n    )\n  }\n\n  if (start === undefined) {\n    start = 0\n  }\n  if (end === undefined) {\n    end = target ? target.length : 0\n  }\n  if (thisStart === undefined) {\n    thisStart = 0\n  }\n  if (thisEnd === undefined) {\n    thisEnd = this.length\n  }\n\n  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n    throw new RangeError('out of range index')\n  }\n\n  if (thisStart >= thisEnd && start >= end) {\n    return 0\n  }\n  if (thisStart >= thisEnd) {\n    return -1\n  }\n  if (start >= end) {\n    return 1\n  }\n\n  start >>>= 0\n  end >>>= 0\n  thisStart >>>= 0\n  thisEnd >>>= 0\n\n  if (this === target) return 0\n\n  var x = thisEnd - thisStart\n  var y = end - start\n  var len = Math.min(x, y)\n\n  var thisCopy = this.slice(thisStart, thisEnd)\n  var targetCopy = target.slice(start, end)\n\n  for (var i = 0; i < len; ++i) {\n    if (thisCopy[i] !== targetCopy[i]) {\n      x = thisCopy[i]\n      y = targetCopy[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n  // Empty buffer means no match\n  if (buffer.length === 0) return -1\n\n  // Normalize byteOffset\n  if (typeof byteOffset === 'string') {\n    encoding = byteOffset\n    byteOffset = 0\n  } else if (byteOffset > 0x7fffffff) {\n    byteOffset = 0x7fffffff\n  } else if (byteOffset < -0x80000000) {\n    byteOffset = -0x80000000\n  }\n  byteOffset = +byteOffset // Coerce to Number.\n  if (numberIsNaN(byteOffset)) {\n    // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n    byteOffset = dir ? 0 : (buffer.length - 1)\n  }\n\n  // Normalize byteOffset: negative offsets start from the end of the buffer\n  if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n  if (byteOffset >= buffer.length) {\n    if (dir) return -1\n    else byteOffset = buffer.length - 1\n  } else if (byteOffset < 0) {\n    if (dir) byteOffset = 0\n    else return -1\n  }\n\n  // Normalize val\n  if (typeof val === 'string') {\n    val = Buffer.from(val, encoding)\n  }\n\n  // Finally, search either indexOf (if dir is true) or lastIndexOf\n  if (Buffer.isBuffer(val)) {\n    // Special case: looking for empty string/buffer always fails\n    if (val.length === 0) {\n      return -1\n    }\n    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n  } else if (typeof val === 'number') {\n    val = val & 0xFF // Search for a byte value [0-255]\n    if (typeof Uint8Array.prototype.indexOf === 'function') {\n      if (dir) {\n        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n      } else {\n        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n      }\n    }\n    return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)\n  }\n\n  throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n  var indexSize = 1\n  var arrLength = arr.length\n  var valLength = val.length\n\n  if (encoding !== undefined) {\n    encoding = String(encoding).toLowerCase()\n    if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n        encoding === 'utf16le' || encoding === 'utf-16le') {\n      if (arr.length < 2 || val.length < 2) {\n        return -1\n      }\n      indexSize = 2\n      arrLength /= 2\n      valLength /= 2\n      byteOffset /= 2\n    }\n  }\n\n  function read (buf, i) {\n    if (indexSize === 1) {\n      return buf[i]\n    } else {\n      return buf.readUInt16BE(i * indexSize)\n    }\n  }\n\n  var i\n  if (dir) {\n    var foundIndex = -1\n    for (i = byteOffset; i < arrLength; i++) {\n      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n        if (foundIndex === -1) foundIndex = i\n        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n      } else {\n        if (foundIndex !== -1) i -= i - foundIndex\n        foundIndex = -1\n      }\n    }\n  } else {\n    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n    for (i = byteOffset; i >= 0; i--) {\n      var found = true\n      for (var j = 0; j < valLength; j++) {\n        if (read(arr, i + j) !== read(val, j)) {\n          found = false\n          break\n        }\n      }\n      if (found) return i\n    }\n  }\n\n  return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n  return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n  offset = Number(offset) || 0\n  var remaining = buf.length - offset\n  if (!length) {\n    length = remaining\n  } else {\n    length = Number(length)\n    if (length > remaining) {\n      length = remaining\n    }\n  }\n\n  var strLen = string.length\n\n  if (length > strLen / 2) {\n    length = strLen / 2\n  }\n  for (var i = 0; i < length; ++i) {\n    var parsed = parseInt(string.substr(i * 2, 2), 16)\n    if (numberIsNaN(parsed)) return i\n    buf[offset + i] = parsed\n  }\n  return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n  return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n  return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n  return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n  // Buffer#write(string)\n  if (offset === undefined) {\n    encoding = 'utf8'\n    length = this.length\n    offset = 0\n  // Buffer#write(string, encoding)\n  } else if (length === undefined && typeof offset === 'string') {\n    encoding = offset\n    length = this.length\n    offset = 0\n  // Buffer#write(string, offset[, length][, encoding])\n  } else if (isFinite(offset)) {\n    offset = offset >>> 0\n    if (isFinite(length)) {\n      length = length >>> 0\n      if (encoding === undefined) encoding = 'utf8'\n    } else {\n      encoding = length\n      length = undefined\n    }\n  } else {\n    throw new Error(\n      'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n    )\n  }\n\n  var remaining = this.length - offset\n  if (length === undefined || length > remaining) length = remaining\n\n  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n    throw new RangeError('Attempt to write outside buffer bounds')\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'hex':\n        return hexWrite(this, string, offset, length)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Write(this, string, offset, length)\n\n      case 'ascii':\n        return asciiWrite(this, string, offset, length)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Write(this, string, offset, length)\n\n      case 'base64':\n        // Warning: maxLength not taken into account in base64Write\n        return base64Write(this, string, offset, length)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return ucs2Write(this, string, offset, length)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n  return {\n    type: 'Buffer',\n    data: Array.prototype.slice.call(this._arr || this, 0)\n  }\n}\n\nfunction base64Slice (buf, start, end) {\n  if (start === 0 && end === buf.length) {\n    return base64.fromByteArray(buf)\n  } else {\n    return base64.fromByteArray(buf.slice(start, end))\n  }\n}\n\nfunction utf8Slice (buf, start, end) {\n  end = Math.min(buf.length, end)\n  var res = []\n\n  var i = start\n  while (i < end) {\n    var firstByte = buf[i]\n    var codePoint = null\n    var bytesPerSequence = (firstByte > 0xEF) ? 4\n      : (firstByte > 0xDF) ? 3\n        : (firstByte > 0xBF) ? 2\n          : 1\n\n    if (i + bytesPerSequence <= end) {\n      var secondByte, thirdByte, fourthByte, tempCodePoint\n\n      switch (bytesPerSequence) {\n        case 1:\n          if (firstByte < 0x80) {\n            codePoint = firstByte\n          }\n          break\n        case 2:\n          secondByte = buf[i + 1]\n          if ((secondByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n            if (tempCodePoint > 0x7F) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 3:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 4:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          fourthByte = buf[i + 3]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n              codePoint = tempCodePoint\n            }\n          }\n      }\n    }\n\n    if (codePoint === null) {\n      // we did not generate a valid codePoint so insert a\n      // replacement char (U+FFFD) and advance only 1 byte\n      codePoint = 0xFFFD\n      bytesPerSequence = 1\n    } else if (codePoint > 0xFFFF) {\n      // encode to utf16 (surrogate pair dance)\n      codePoint -= 0x10000\n      res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n      codePoint = 0xDC00 | codePoint & 0x3FF\n    }\n\n    res.push(codePoint)\n    i += bytesPerSequence\n  }\n\n  return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n  var len = codePoints.length\n  if (len <= MAX_ARGUMENTS_LENGTH) {\n    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n  }\n\n  // Decode in chunks to avoid \"call stack size exceeded\".\n  var res = ''\n  var i = 0\n  while (i < len) {\n    res += String.fromCharCode.apply(\n      String,\n      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n    )\n  }\n  return res\n}\n\nfunction asciiSlice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i] & 0x7F)\n  }\n  return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i])\n  }\n  return ret\n}\n\nfunction hexSlice (buf, start, end) {\n  var len = buf.length\n\n  if (!start || start < 0) start = 0\n  if (!end || end < 0 || end > len) end = len\n\n  var out = ''\n  for (var i = start; i < end; ++i) {\n    out += hexSliceLookupTable[buf[i]]\n  }\n  return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n  var bytes = buf.slice(start, end)\n  var res = ''\n  for (var i = 0; i < bytes.length; i += 2) {\n    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))\n  }\n  return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n  var len = this.length\n  start = ~~start\n  end = end === undefined ? len : ~~end\n\n  if (start < 0) {\n    start += len\n    if (start < 0) start = 0\n  } else if (start > len) {\n    start = len\n  }\n\n  if (end < 0) {\n    end += len\n    if (end < 0) end = 0\n  } else if (end > len) {\n    end = len\n  }\n\n  if (end < start) end = start\n\n  var newBuf = this.subarray(start, end)\n  // Return an augmented `Uint8Array` instance\n  Object.setPrototypeOf(newBuf, Buffer.prototype)\n\n  return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) {\n    checkOffset(offset, byteLength, this.length)\n  }\n\n  var val = this[offset + --byteLength]\n  var mul = 1\n  while (byteLength > 0 && (mul *= 0x100)) {\n    val += this[offset + --byteLength] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return ((this[offset]) |\n      (this[offset + 1] << 8) |\n      (this[offset + 2] << 16)) +\n      (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] * 0x1000000) +\n    ((this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var i = byteLength\n  var mul = 1\n  var val = this[offset + --i]\n  while (i > 0 && (mul *= 0x100)) {\n    val += this[offset + --i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  if (!(this[offset] & 0x80)) return (this[offset])\n  return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset] | (this[offset + 1] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset + 1] | (this[offset] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset]) |\n    (this[offset + 1] << 8) |\n    (this[offset + 2] << 16) |\n    (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] << 24) |\n    (this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n  offset = offset >>> 0\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n  if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n  if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var mul = 1\n  var i = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  byteLength = byteLength >>> 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  this[offset] = (value & 0xff)\n  this[offset + 1] = (value >>> 8)\n  return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  this[offset] = (value >>> 8)\n  this[offset + 1] = (value & 0xff)\n  return offset + 2\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  this[offset + 3] = (value >>> 24)\n  this[offset + 2] = (value >>> 16)\n  this[offset + 1] = (value >>> 8)\n  this[offset] = (value & 0xff)\n  return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  this[offset] = (value >>> 24)\n  this[offset + 1] = (value >>> 16)\n  this[offset + 2] = (value >>> 8)\n  this[offset + 3] = (value & 0xff)\n  return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) {\n    var limit = Math.pow(2, (8 * byteLength) - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = 0\n  var mul = 1\n  var sub = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) {\n    var limit = Math.pow(2, (8 * byteLength) - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  var sub = 0\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n  if (value < 0) value = 0xff + value + 1\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  this[offset] = (value & 0xff)\n  this[offset + 1] = (value >>> 8)\n  return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  this[offset] = (value >>> 8)\n  this[offset + 1] = (value & 0xff)\n  return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  this[offset] = (value & 0xff)\n  this[offset + 1] = (value >>> 8)\n  this[offset + 2] = (value >>> 16)\n  this[offset + 3] = (value >>> 24)\n  return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (value < 0) value = 0xffffffff + value + 1\n  this[offset] = (value >>> 24)\n  this[offset + 1] = (value >>> 16)\n  this[offset + 2] = (value >>> 8)\n  this[offset + 3] = (value & 0xff)\n  return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n  if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 23, 4)\n  return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n  value = +value\n  offset = offset >>> 0\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 52, 8)\n  return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')\n  if (!start) start = 0\n  if (!end && end !== 0) end = this.length\n  if (targetStart >= target.length) targetStart = target.length\n  if (!targetStart) targetStart = 0\n  if (end > 0 && end < start) end = start\n\n  // Copy 0 bytes; we're done\n  if (end === start) return 0\n  if (target.length === 0 || this.length === 0) return 0\n\n  // Fatal error conditions\n  if (targetStart < 0) {\n    throw new RangeError('targetStart out of bounds')\n  }\n  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')\n  if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n  // Are we oob?\n  if (end > this.length) end = this.length\n  if (target.length - targetStart < end - start) {\n    end = target.length - targetStart + start\n  }\n\n  var len = end - start\n\n  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {\n    // Use built-in when available, missing from IE11\n    this.copyWithin(targetStart, start, end)\n  } else if (this === target && start < targetStart && targetStart < end) {\n    // descending copy from end\n    for (var i = len - 1; i >= 0; --i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else {\n    Uint8Array.prototype.set.call(\n      target,\n      this.subarray(start, end),\n      targetStart\n    )\n  }\n\n  return len\n}\n\n// Usage:\n//    buffer.fill(number[, offset[, end]])\n//    buffer.fill(buffer[, offset[, end]])\n//    buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n  // Handle string cases:\n  if (typeof val === 'string') {\n    if (typeof start === 'string') {\n      encoding = start\n      start = 0\n      end = this.length\n    } else if (typeof end === 'string') {\n      encoding = end\n      end = this.length\n    }\n    if (encoding !== undefined && typeof encoding !== 'string') {\n      throw new TypeError('encoding must be a string')\n    }\n    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n      throw new TypeError('Unknown encoding: ' + encoding)\n    }\n    if (val.length === 1) {\n      var code = val.charCodeAt(0)\n      if ((encoding === 'utf8' && code < 128) ||\n          encoding === 'latin1') {\n        // Fast path: If `val` fits into a single byte, use that numeric value.\n        val = code\n      }\n    }\n  } else if (typeof val === 'number') {\n    val = val & 255\n  } else if (typeof val === 'boolean') {\n    val = Number(val)\n  }\n\n  // Invalid ranges are not set to a default, so can range check early.\n  if (start < 0 || this.length < start || this.length < end) {\n    throw new RangeError('Out of range index')\n  }\n\n  if (end <= start) {\n    return this\n  }\n\n  start = start >>> 0\n  end = end === undefined ? this.length : end >>> 0\n\n  if (!val) val = 0\n\n  var i\n  if (typeof val === 'number') {\n    for (i = start; i < end; ++i) {\n      this[i] = val\n    }\n  } else {\n    var bytes = Buffer.isBuffer(val)\n      ? val\n      : Buffer.from(val, encoding)\n    var len = bytes.length\n    if (len === 0) {\n      throw new TypeError('The value \"' + val +\n        '\" is invalid for argument \"value\"')\n    }\n    for (i = 0; i < end - start; ++i) {\n      this[i + start] = bytes[i % len]\n    }\n  }\n\n  return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n  // Node takes equal signs as end of the Base64 encoding\n  str = str.split('=')[0]\n  // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n  str = str.trim().replace(INVALID_BASE64_RE, '')\n  // Node converts strings with length < 2 to ''\n  if (str.length < 2) return ''\n  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n  while (str.length % 4 !== 0) {\n    str = str + '='\n  }\n  return str\n}\n\nfunction utf8ToBytes (string, units) {\n  units = units || Infinity\n  var codePoint\n  var length = string.length\n  var leadSurrogate = null\n  var bytes = []\n\n  for (var i = 0; i < length; ++i) {\n    codePoint = string.charCodeAt(i)\n\n    // is surrogate component\n    if (codePoint > 0xD7FF && codePoint < 0xE000) {\n      // last char was a lead\n      if (!leadSurrogate) {\n        // no lead yet\n        if (codePoint > 0xDBFF) {\n          // unexpected trail\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        } else if (i + 1 === length) {\n          // unpaired lead\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        }\n\n        // valid lead\n        leadSurrogate = codePoint\n\n        continue\n      }\n\n      // 2 leads in a row\n      if (codePoint < 0xDC00) {\n        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n        leadSurrogate = codePoint\n        continue\n      }\n\n      // valid surrogate pair\n      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n    } else if (leadSurrogate) {\n      // valid bmp char, but last char was a lead\n      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n    }\n\n    leadSurrogate = null\n\n    // encode utf8\n    if (codePoint < 0x80) {\n      if ((units -= 1) < 0) break\n      bytes.push(codePoint)\n    } else if (codePoint < 0x800) {\n      if ((units -= 2) < 0) break\n      bytes.push(\n        codePoint >> 0x6 | 0xC0,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x10000) {\n      if ((units -= 3) < 0) break\n      bytes.push(\n        codePoint >> 0xC | 0xE0,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x110000) {\n      if ((units -= 4) < 0) break\n      bytes.push(\n        codePoint >> 0x12 | 0xF0,\n        codePoint >> 0xC & 0x3F | 0x80,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else {\n      throw new Error('Invalid code point')\n    }\n  }\n\n  return bytes\n}\n\nfunction asciiToBytes (str) {\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    // Node's code seems to be doing this and not & 0x7F..\n    byteArray.push(str.charCodeAt(i) & 0xFF)\n  }\n  return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n  var c, hi, lo\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    if ((units -= 2) < 0) break\n\n    c = str.charCodeAt(i)\n    hi = c >> 8\n    lo = c % 256\n    byteArray.push(lo)\n    byteArray.push(hi)\n  }\n\n  return byteArray\n}\n\nfunction base64ToBytes (str) {\n  return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n  for (var i = 0; i < length; ++i) {\n    if ((i + offset >= dst.length) || (i >= src.length)) break\n    dst[i + offset] = src[i]\n  }\n  return i\n}\n\n// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass\n// the `instanceof` check but they should be treated as of that type.\n// See: https://github.com/feross/buffer/issues/166\nfunction isInstance (obj, type) {\n  return obj instanceof type ||\n    (obj != null && obj.constructor != null && obj.constructor.name != null &&\n      obj.constructor.name === type.name)\n}\nfunction numberIsNaN (obj) {\n  // For IE11 support\n  return obj !== obj // eslint-disable-line no-self-compare\n}\n\n// Create lookup table for `toString('hex')`\n// See: https://github.com/feross/buffer/issues/219\nvar hexSliceLookupTable = (function () {\n  var alphabet = '0123456789abcdef'\n  var table = new Array(256)\n  for (var i = 0; i < 16; ++i) {\n    var i16 = i * 16\n    for (var j = 0; j < 16; ++j) {\n      table[i16 + j] = alphabet[i] + alphabet[j]\n    }\n  }\n  return table\n})()\n","var Buffer = require('safe-buffer').Buffer\nvar Transform = require('stream').Transform\nvar StringDecoder = require('string_decoder').StringDecoder\nvar inherits = require('inherits')\n\nfunction CipherBase (hashMode) {\n  Transform.call(this)\n  this.hashMode = typeof hashMode === 'string'\n  if (this.hashMode) {\n    this[hashMode] = this._finalOrDigest\n  } else {\n    this.final = this._finalOrDigest\n  }\n  if (this._final) {\n    this.__final = this._final\n    this._final = null\n  }\n  this._decoder = null\n  this._encoding = null\n}\ninherits(CipherBase, Transform)\n\nCipherBase.prototype.update = function (data, inputEnc, outputEnc) {\n  if (typeof data === 'string') {\n    data = Buffer.from(data, inputEnc)\n  }\n\n  var outData = this._update(data)\n  if (this.hashMode) return this\n\n  if (outputEnc) {\n    outData = this._toString(outData, outputEnc)\n  }\n\n  return outData\n}\n\nCipherBase.prototype.setAutoPadding = function () {}\nCipherBase.prototype.getAuthTag = function () {\n  throw new Error('trying to get auth tag in unsupported state')\n}\n\nCipherBase.prototype.setAuthTag = function () {\n  throw new Error('trying to set auth tag in unsupported state')\n}\n\nCipherBase.prototype.setAAD = function () {\n  throw new Error('trying to set aad in unsupported state')\n}\n\nCipherBase.prototype._transform = function (data, _, next) {\n  var err\n  try {\n    if (this.hashMode) {\n      this._update(data)\n    } else {\n      this.push(this._update(data))\n    }\n  } catch (e) {\n    err = e\n  } finally {\n    next(err)\n  }\n}\nCipherBase.prototype._flush = function (done) {\n  var err\n  try {\n    this.push(this.__final())\n  } catch (e) {\n    err = e\n  }\n\n  done(err)\n}\nCipherBase.prototype._finalOrDigest = function (outputEnc) {\n  var outData = this.__final() || Buffer.alloc(0)\n  if (outputEnc) {\n    outData = this._toString(outData, outputEnc, true)\n  }\n  return outData\n}\n\nCipherBase.prototype._toString = function (value, enc, fin) {\n  if (!this._decoder) {\n    this._decoder = new StringDecoder(enc)\n    this._encoding = enc\n  }\n\n  if (this._encoding !== enc) throw new Error('can\\'t switch encodings')\n\n  var out = this._decoder.write(value)\n  if (fin) {\n    out += this._decoder.end()\n  }\n\n  return out\n}\n\nmodule.exports = CipherBase\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// NOTE: These type checking functions intentionally don't use `instanceof`\n// because it is fragile and can be easily faked with `Object.create()`.\n\nfunction isArray(arg) {\n  if (Array.isArray) {\n    return Array.isArray(arg);\n  }\n  return objectToString(arg) === '[object Array]';\n}\nexports.isArray = isArray;\n\nfunction isBoolean(arg) {\n  return typeof arg === 'boolean';\n}\nexports.isBoolean = isBoolean;\n\nfunction isNull(arg) {\n  return arg === null;\n}\nexports.isNull = isNull;\n\nfunction isNullOrUndefined(arg) {\n  return arg == null;\n}\nexports.isNullOrUndefined = isNullOrUndefined;\n\nfunction isNumber(arg) {\n  return typeof arg === 'number';\n}\nexports.isNumber = isNumber;\n\nfunction isString(arg) {\n  return typeof arg === 'string';\n}\nexports.isString = isString;\n\nfunction isSymbol(arg) {\n  return typeof arg === 'symbol';\n}\nexports.isSymbol = isSymbol;\n\nfunction isUndefined(arg) {\n  return arg === void 0;\n}\nexports.isUndefined = isUndefined;\n\nfunction isRegExp(re) {\n  return objectToString(re) === '[object RegExp]';\n}\nexports.isRegExp = isRegExp;\n\nfunction isObject(arg) {\n  return typeof arg === 'object' && arg !== null;\n}\nexports.isObject = isObject;\n\nfunction isDate(d) {\n  return objectToString(d) === '[object Date]';\n}\nexports.isDate = isDate;\n\nfunction isError(e) {\n  return (objectToString(e) === '[object Error]' || e instanceof Error);\n}\nexports.isError = isError;\n\nfunction isFunction(arg) {\n  return typeof arg === 'function';\n}\nexports.isFunction = isFunction;\n\nfunction isPrimitive(arg) {\n  return arg === null ||\n         typeof arg === 'boolean' ||\n         typeof arg === 'number' ||\n         typeof arg === 'string' ||\n         typeof arg === 'symbol' ||  // ES6 symbol\n         typeof arg === 'undefined';\n}\nexports.isPrimitive = isPrimitive;\n\nexports.isBuffer = Buffer.isBuffer;\n\nfunction objectToString(o) {\n  return Object.prototype.toString.call(o);\n}\n","var elliptic = require('elliptic')\nvar BN = require('bn.js')\n\nmodule.exports = function createECDH (curve) {\n  return new ECDH(curve)\n}\n\nvar aliases = {\n  secp256k1: {\n    name: 'secp256k1',\n    byteLength: 32\n  },\n  secp224r1: {\n    name: 'p224',\n    byteLength: 28\n  },\n  prime256v1: {\n    name: 'p256',\n    byteLength: 32\n  },\n  prime192v1: {\n    name: 'p192',\n    byteLength: 24\n  },\n  ed25519: {\n    name: 'ed25519',\n    byteLength: 32\n  },\n  secp384r1: {\n    name: 'p384',\n    byteLength: 48\n  },\n  secp521r1: {\n    name: 'p521',\n    byteLength: 66\n  }\n}\n\naliases.p224 = aliases.secp224r1\naliases.p256 = aliases.secp256r1 = aliases.prime256v1\naliases.p192 = aliases.secp192r1 = aliases.prime192v1\naliases.p384 = aliases.secp384r1\naliases.p521 = aliases.secp521r1\n\nfunction ECDH (curve) {\n  this.curveType = aliases[curve]\n  if (!this.curveType) {\n    this.curveType = {\n      name: curve\n    }\n  }\n  this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap\n  this.keys = void 0\n}\n\nECDH.prototype.generateKeys = function (enc, format) {\n  this.keys = this.curve.genKeyPair()\n  return this.getPublicKey(enc, format)\n}\n\nECDH.prototype.computeSecret = function (other, inenc, enc) {\n  inenc = inenc || 'utf8'\n  if (!Buffer.isBuffer(other)) {\n    other = new Buffer(other, inenc)\n  }\n  var otherPub = this.curve.keyFromPublic(other).getPublic()\n  var out = otherPub.mul(this.keys.getPrivate()).getX()\n  return formatReturnValue(out, enc, this.curveType.byteLength)\n}\n\nECDH.prototype.getPublicKey = function (enc, format) {\n  var key = this.keys.getPublic(format === 'compressed', true)\n  if (format === 'hybrid') {\n    if (key[key.length - 1] % 2) {\n      key[0] = 7\n    } else {\n      key[0] = 6\n    }\n  }\n  return formatReturnValue(key, enc)\n}\n\nECDH.prototype.getPrivateKey = function (enc) {\n  return formatReturnValue(this.keys.getPrivate(), enc)\n}\n\nECDH.prototype.setPublicKey = function (pub, enc) {\n  enc = enc || 'utf8'\n  if (!Buffer.isBuffer(pub)) {\n    pub = new Buffer(pub, enc)\n  }\n  this.keys._importPublic(pub)\n  return this\n}\n\nECDH.prototype.setPrivateKey = function (priv, enc) {\n  enc = enc || 'utf8'\n  if (!Buffer.isBuffer(priv)) {\n    priv = new Buffer(priv, enc)\n  }\n\n  var _priv = new BN(priv)\n  _priv = _priv.toString(16)\n  this.keys = this.curve.genKeyPair()\n  this.keys._importPrivate(_priv)\n  return this\n}\n\nfunction formatReturnValue (bn, enc, len) {\n  if (!Array.isArray(bn)) {\n    bn = bn.toArray()\n  }\n  var buf = new Buffer(bn)\n  if (len && buf.length < len) {\n    var zeros = new Buffer(len - buf.length)\n    zeros.fill(0)\n    buf = Buffer.concat([zeros, buf])\n  }\n  if (!enc) {\n    return buf\n  } else {\n    return buf.toString(enc)\n  }\n}\n","'use strict'\nvar inherits = require('inherits')\nvar MD5 = require('md5.js')\nvar RIPEMD160 = require('ripemd160')\nvar sha = require('sha.js')\nvar Base = require('cipher-base')\n\nfunction Hash (hash) {\n  Base.call(this, 'digest')\n\n  this._hash = hash\n}\n\ninherits(Hash, Base)\n\nHash.prototype._update = function (data) {\n  this._hash.update(data)\n}\n\nHash.prototype._final = function () {\n  return this._hash.digest()\n}\n\nmodule.exports = function createHash (alg) {\n  alg = alg.toLowerCase()\n  if (alg === 'md5') return new MD5()\n  if (alg === 'rmd160' || alg === 'ripemd160') return new RIPEMD160()\n\n  return new Hash(sha(alg))\n}\n","var MD5 = require('md5.js')\n\nmodule.exports = function (buffer) {\n  return new MD5().update(buffer).digest()\n}\n","'use strict'\nvar inherits = require('inherits')\nvar Legacy = require('./legacy')\nvar Base = require('cipher-base')\nvar Buffer = require('safe-buffer').Buffer\nvar md5 = require('create-hash/md5')\nvar RIPEMD160 = require('ripemd160')\n\nvar sha = require('sha.js')\n\nvar ZEROS = Buffer.alloc(128)\n\nfunction Hmac (alg, key) {\n  Base.call(this, 'digest')\n  if (typeof key === 'string') {\n    key = Buffer.from(key)\n  }\n\n  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64\n\n  this._alg = alg\n  this._key = key\n  if (key.length > blocksize) {\n    var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)\n    key = hash.update(key).digest()\n  } else if (key.length < blocksize) {\n    key = Buffer.concat([key, ZEROS], blocksize)\n  }\n\n  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)\n  var opad = this._opad = Buffer.allocUnsafe(blocksize)\n\n  for (var i = 0; i < blocksize; i++) {\n    ipad[i] = key[i] ^ 0x36\n    opad[i] = key[i] ^ 0x5C\n  }\n  this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)\n  this._hash.update(ipad)\n}\n\ninherits(Hmac, Base)\n\nHmac.prototype._update = function (data) {\n  this._hash.update(data)\n}\n\nHmac.prototype._final = function () {\n  var h = this._hash.digest()\n  var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)\n  return hash.update(this._opad).update(h).digest()\n}\n\nmodule.exports = function createHmac (alg, key) {\n  alg = alg.toLowerCase()\n  if (alg === 'rmd160' || alg === 'ripemd160') {\n    return new Hmac('rmd160', key)\n  }\n  if (alg === 'md5') {\n    return new Legacy(md5, key)\n  }\n  return new Hmac(alg, key)\n}\n","'use strict'\nvar inherits = require('inherits')\nvar Buffer = require('safe-buffer').Buffer\n\nvar Base = require('cipher-base')\n\nvar ZEROS = Buffer.alloc(128)\nvar blocksize = 64\n\nfunction Hmac (alg, key) {\n  Base.call(this, 'digest')\n  if (typeof key === 'string') {\n    key = Buffer.from(key)\n  }\n\n  this._alg = alg\n  this._key = key\n\n  if (key.length > blocksize) {\n    key = alg(key)\n  } else if (key.length < blocksize) {\n    key = Buffer.concat([key, ZEROS], blocksize)\n  }\n\n  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)\n  var opad = this._opad = Buffer.allocUnsafe(blocksize)\n\n  for (var i = 0; i < blocksize; i++) {\n    ipad[i] = key[i] ^ 0x36\n    opad[i] = key[i] ^ 0x5C\n  }\n\n  this._hash = [ipad]\n}\n\ninherits(Hmac, Base)\n\nHmac.prototype._update = function (data) {\n  this._hash.push(data)\n}\n\nHmac.prototype._final = function () {\n  var h = this._alg(Buffer.concat(this._hash))\n  return this._alg(Buffer.concat([this._opad, h]))\n}\nmodule.exports = Hmac\n","'use strict'\n\nexports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes')\nexports.createHash = exports.Hash = require('create-hash')\nexports.createHmac = exports.Hmac = require('create-hmac')\n\nvar algos = require('browserify-sign/algos')\nvar algoKeys = Object.keys(algos)\nvar hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(algoKeys)\nexports.getHashes = function () {\n  return hashes\n}\n\nvar p = require('pbkdf2')\nexports.pbkdf2 = p.pbkdf2\nexports.pbkdf2Sync = p.pbkdf2Sync\n\nvar aes = require('browserify-cipher')\n\nexports.Cipher = aes.Cipher\nexports.createCipher = aes.createCipher\nexports.Cipheriv = aes.Cipheriv\nexports.createCipheriv = aes.createCipheriv\nexports.Decipher = aes.Decipher\nexports.createDecipher = aes.createDecipher\nexports.Decipheriv = aes.Decipheriv\nexports.createDecipheriv = aes.createDecipheriv\nexports.getCiphers = aes.getCiphers\nexports.listCiphers = aes.listCiphers\n\nvar dh = require('diffie-hellman')\n\nexports.DiffieHellmanGroup = dh.DiffieHellmanGroup\nexports.createDiffieHellmanGroup = dh.createDiffieHellmanGroup\nexports.getDiffieHellman = dh.getDiffieHellman\nexports.createDiffieHellman = dh.createDiffieHellman\nexports.DiffieHellman = dh.DiffieHellman\n\nvar sign = require('browserify-sign')\n\nexports.createSign = sign.createSign\nexports.Sign = sign.Sign\nexports.createVerify = sign.createVerify\nexports.Verify = sign.Verify\n\nexports.createECDH = require('create-ecdh')\n\nvar publicEncrypt = require('public-encrypt')\n\nexports.publicEncrypt = publicEncrypt.publicEncrypt\nexports.privateEncrypt = publicEncrypt.privateEncrypt\nexports.publicDecrypt = publicEncrypt.publicDecrypt\nexports.privateDecrypt = publicEncrypt.privateDecrypt\n\n// the least I can do is make error messages for the rest of the node.js/crypto api.\n// ;[\n//   'createCredentials'\n// ].forEach(function (name) {\n//   exports[name] = function () {\n//     throw new Error([\n//       'sorry, ' + name + ' is not implemented yet',\n//       'we accept pull requests',\n//       'https://github.com/crypto-browserify/crypto-browserify'\n//     ].join('\\n'))\n//   }\n// })\n\nvar rf = require('randomfill')\n\nexports.randomFill = rf.randomFill\nexports.randomFillSync = rf.randomFillSync\n\nexports.createCredentials = function () {\n  throw new Error([\n    'sorry, createCredentials is not implemented yet',\n    'we accept pull requests',\n    'https://github.com/crypto-browserify/crypto-browserify'\n  ].join('\\n'))\n}\n\nexports.constants = {\n  'DH_CHECK_P_NOT_SAFE_PRIME': 2,\n  'DH_CHECK_P_NOT_PRIME': 1,\n  'DH_UNABLE_TO_CHECK_GENERATOR': 4,\n  'DH_NOT_SUITABLE_GENERATOR': 8,\n  'NPN_ENABLED': 1,\n  'ALPN_ENABLED': 1,\n  'RSA_PKCS1_PADDING': 1,\n  'RSA_SSLV23_PADDING': 2,\n  'RSA_NO_PADDING': 3,\n  'RSA_PKCS1_OAEP_PADDING': 4,\n  'RSA_X931_PADDING': 5,\n  'RSA_PKCS1_PSS_PADDING': 6,\n  'POINT_CONVERSION_COMPRESSED': 2,\n  'POINT_CONVERSION_UNCOMPRESSED': 4,\n  'POINT_CONVERSION_HYBRID': 6\n}\n","'use strict';\n\nexports.utils = require('./des/utils');\nexports.Cipher = require('./des/cipher');\nexports.DES = require('./des/des');\nexports.CBC = require('./des/cbc');\nexports.EDE = require('./des/ede');\n","'use strict';\n\nvar assert = require('minimalistic-assert');\nvar inherits = require('inherits');\n\nvar proto = {};\n\nfunction CBCState(iv) {\n  assert.equal(iv.length, 8, 'Invalid IV length');\n\n  this.iv = new Array(8);\n  for (var i = 0; i < this.iv.length; i++)\n    this.iv[i] = iv[i];\n}\n\nfunction instantiate(Base) {\n  function CBC(options) {\n    Base.call(this, options);\n    this._cbcInit();\n  }\n  inherits(CBC, Base);\n\n  var keys = Object.keys(proto);\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i];\n    CBC.prototype[key] = proto[key];\n  }\n\n  CBC.create = function create(options) {\n    return new CBC(options);\n  };\n\n  return CBC;\n}\n\nexports.instantiate = instantiate;\n\nproto._cbcInit = function _cbcInit() {\n  var state = new CBCState(this.options.iv);\n  this._cbcState = state;\n};\n\nproto._update = function _update(inp, inOff, out, outOff) {\n  var state = this._cbcState;\n  var superProto = this.constructor.super_.prototype;\n\n  var iv = state.iv;\n  if (this.type === 'encrypt') {\n    for (var i = 0; i < this.blockSize; i++)\n      iv[i] ^= inp[inOff + i];\n\n    superProto._update.call(this, iv, 0, out, outOff);\n\n    for (var i = 0; i < this.blockSize; i++)\n      iv[i] = out[outOff + i];\n  } else {\n    superProto._update.call(this, inp, inOff, out, outOff);\n\n    for (var i = 0; i < this.blockSize; i++)\n      out[outOff + i] ^= iv[i];\n\n    for (var i = 0; i < this.blockSize; i++)\n      iv[i] = inp[inOff + i];\n  }\n};\n","'use strict';\n\nvar assert = require('minimalistic-assert');\n\nfunction Cipher(options) {\n  this.options = options;\n\n  this.type = this.options.type;\n  this.blockSize = 8;\n  this._init();\n\n  this.buffer = new Array(this.blockSize);\n  this.bufferOff = 0;\n}\nmodule.exports = Cipher;\n\nCipher.prototype._init = function _init() {\n  // Might be overrided\n};\n\nCipher.prototype.update = function update(data) {\n  if (data.length === 0)\n    return [];\n\n  if (this.type === 'decrypt')\n    return this._updateDecrypt(data);\n  else\n    return this._updateEncrypt(data);\n};\n\nCipher.prototype._buffer = function _buffer(data, off) {\n  // Append data to buffer\n  var min = Math.min(this.buffer.length - this.bufferOff, data.length - off);\n  for (var i = 0; i < min; i++)\n    this.buffer[this.bufferOff + i] = data[off + i];\n  this.bufferOff += min;\n\n  // Shift next\n  return min;\n};\n\nCipher.prototype._flushBuffer = function _flushBuffer(out, off) {\n  this._update(this.buffer, 0, out, off);\n  this.bufferOff = 0;\n  return this.blockSize;\n};\n\nCipher.prototype._updateEncrypt = function _updateEncrypt(data) {\n  var inputOff = 0;\n  var outputOff = 0;\n\n  var count = ((this.bufferOff + data.length) / this.blockSize) | 0;\n  var out = new Array(count * this.blockSize);\n\n  if (this.bufferOff !== 0) {\n    inputOff += this._buffer(data, inputOff);\n\n    if (this.bufferOff === this.buffer.length)\n      outputOff += this._flushBuffer(out, outputOff);\n  }\n\n  // Write blocks\n  var max = data.length - ((data.length - inputOff) % this.blockSize);\n  for (; inputOff < max; inputOff += this.blockSize) {\n    this._update(data, inputOff, out, outputOff);\n    outputOff += this.blockSize;\n  }\n\n  // Queue rest\n  for (; inputOff < data.length; inputOff++, this.bufferOff++)\n    this.buffer[this.bufferOff] = data[inputOff];\n\n  return out;\n};\n\nCipher.prototype._updateDecrypt = function _updateDecrypt(data) {\n  var inputOff = 0;\n  var outputOff = 0;\n\n  var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1;\n  var out = new Array(count * this.blockSize);\n\n  // TODO(indutny): optimize it, this is far from optimal\n  for (; count > 0; count--) {\n    inputOff += this._buffer(data, inputOff);\n    outputOff += this._flushBuffer(out, outputOff);\n  }\n\n  // Buffer rest of the input\n  inputOff += this._buffer(data, inputOff);\n\n  return out;\n};\n\nCipher.prototype.final = function final(buffer) {\n  var first;\n  if (buffer)\n    first = this.update(buffer);\n\n  var last;\n  if (this.type === 'encrypt')\n    last = this._finalEncrypt();\n  else\n    last = this._finalDecrypt();\n\n  if (first)\n    return first.concat(last);\n  else\n    return last;\n};\n\nCipher.prototype._pad = function _pad(buffer, off) {\n  if (off === 0)\n    return false;\n\n  while (off < buffer.length)\n    buffer[off++] = 0;\n\n  return true;\n};\n\nCipher.prototype._finalEncrypt = function _finalEncrypt() {\n  if (!this._pad(this.buffer, this.bufferOff))\n    return [];\n\n  var out = new Array(this.blockSize);\n  this._update(this.buffer, 0, out, 0);\n  return out;\n};\n\nCipher.prototype._unpad = function _unpad(buffer) {\n  return buffer;\n};\n\nCipher.prototype._finalDecrypt = function _finalDecrypt() {\n  assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt');\n  var out = new Array(this.blockSize);\n  this._flushBuffer(out, 0);\n\n  return this._unpad(out);\n};\n","'use strict';\n\nvar assert = require('minimalistic-assert');\nvar inherits = require('inherits');\n\nvar utils = require('./utils');\nvar Cipher = require('./cipher');\n\nfunction DESState() {\n  this.tmp = new Array(2);\n  this.keys = null;\n}\n\nfunction DES(options) {\n  Cipher.call(this, options);\n\n  var state = new DESState();\n  this._desState = state;\n\n  this.deriveKeys(state, options.key);\n}\ninherits(DES, Cipher);\nmodule.exports = DES;\n\nDES.create = function create(options) {\n  return new DES(options);\n};\n\nvar shiftTable = [\n  1, 1, 2, 2, 2, 2, 2, 2,\n  1, 2, 2, 2, 2, 2, 2, 1\n];\n\nDES.prototype.deriveKeys = function deriveKeys(state, key) {\n  state.keys = new Array(16 * 2);\n\n  assert.equal(key.length, this.blockSize, 'Invalid key length');\n\n  var kL = utils.readUInt32BE(key, 0);\n  var kR = utils.readUInt32BE(key, 4);\n\n  utils.pc1(kL, kR, state.tmp, 0);\n  kL = state.tmp[0];\n  kR = state.tmp[1];\n  for (var i = 0; i < state.keys.length; i += 2) {\n    var shift = shiftTable[i >>> 1];\n    kL = utils.r28shl(kL, shift);\n    kR = utils.r28shl(kR, shift);\n    utils.pc2(kL, kR, state.keys, i);\n  }\n};\n\nDES.prototype._update = function _update(inp, inOff, out, outOff) {\n  var state = this._desState;\n\n  var l = utils.readUInt32BE(inp, inOff);\n  var r = utils.readUInt32BE(inp, inOff + 4);\n\n  // Initial Permutation\n  utils.ip(l, r, state.tmp, 0);\n  l = state.tmp[0];\n  r = state.tmp[1];\n\n  if (this.type === 'encrypt')\n    this._encrypt(state, l, r, state.tmp, 0);\n  else\n    this._decrypt(state, l, r, state.tmp, 0);\n\n  l = state.tmp[0];\n  r = state.tmp[1];\n\n  utils.writeUInt32BE(out, l, outOff);\n  utils.writeUInt32BE(out, r, outOff + 4);\n};\n\nDES.prototype._pad = function _pad(buffer, off) {\n  var value = buffer.length - off;\n  for (var i = off; i < buffer.length; i++)\n    buffer[i] = value;\n\n  return true;\n};\n\nDES.prototype._unpad = function _unpad(buffer) {\n  var pad = buffer[buffer.length - 1];\n  for (var i = buffer.length - pad; i < buffer.length; i++)\n    assert.equal(buffer[i], pad);\n\n  return buffer.slice(0, buffer.length - pad);\n};\n\nDES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) {\n  var l = lStart;\n  var r = rStart;\n\n  // Apply f() x16 times\n  for (var i = 0; i < state.keys.length; i += 2) {\n    var keyL = state.keys[i];\n    var keyR = state.keys[i + 1];\n\n    // f(r, k)\n    utils.expand(r, state.tmp, 0);\n\n    keyL ^= state.tmp[0];\n    keyR ^= state.tmp[1];\n    var s = utils.substitute(keyL, keyR);\n    var f = utils.permute(s);\n\n    var t = r;\n    r = (l ^ f) >>> 0;\n    l = t;\n  }\n\n  // Reverse Initial Permutation\n  utils.rip(r, l, out, off);\n};\n\nDES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) {\n  var l = rStart;\n  var r = lStart;\n\n  // Apply f() x16 times\n  for (var i = state.keys.length - 2; i >= 0; i -= 2) {\n    var keyL = state.keys[i];\n    var keyR = state.keys[i + 1];\n\n    // f(r, k)\n    utils.expand(l, state.tmp, 0);\n\n    keyL ^= state.tmp[0];\n    keyR ^= state.tmp[1];\n    var s = utils.substitute(keyL, keyR);\n    var f = utils.permute(s);\n\n    var t = l;\n    l = (r ^ f) >>> 0;\n    r = t;\n  }\n\n  // Reverse Initial Permutation\n  utils.rip(l, r, out, off);\n};\n","'use strict';\n\nvar assert = require('minimalistic-assert');\nvar inherits = require('inherits');\n\nvar Cipher = require('./cipher');\nvar DES = require('./des');\n\nfunction EDEState(type, key) {\n  assert.equal(key.length, 24, 'Invalid key length');\n\n  var k1 = key.slice(0, 8);\n  var k2 = key.slice(8, 16);\n  var k3 = key.slice(16, 24);\n\n  if (type === 'encrypt') {\n    this.ciphers = [\n      DES.create({ type: 'encrypt', key: k1 }),\n      DES.create({ type: 'decrypt', key: k2 }),\n      DES.create({ type: 'encrypt', key: k3 })\n    ];\n  } else {\n    this.ciphers = [\n      DES.create({ type: 'decrypt', key: k3 }),\n      DES.create({ type: 'encrypt', key: k2 }),\n      DES.create({ type: 'decrypt', key: k1 })\n    ];\n  }\n}\n\nfunction EDE(options) {\n  Cipher.call(this, options);\n\n  var state = new EDEState(this.type, this.options.key);\n  this._edeState = state;\n}\ninherits(EDE, Cipher);\n\nmodule.exports = EDE;\n\nEDE.create = function create(options) {\n  return new EDE(options);\n};\n\nEDE.prototype._update = function _update(inp, inOff, out, outOff) {\n  var state = this._edeState;\n\n  state.ciphers[0]._update(inp, inOff, out, outOff);\n  state.ciphers[1]._update(out, outOff, out, outOff);\n  state.ciphers[2]._update(out, outOff, out, outOff);\n};\n\nEDE.prototype._pad = DES.prototype._pad;\nEDE.prototype._unpad = DES.prototype._unpad;\n","'use strict';\n\nexports.readUInt32BE = function readUInt32BE(bytes, off) {\n  var res =  (bytes[0 + off] << 24) |\n             (bytes[1 + off] << 16) |\n             (bytes[2 + off] << 8) |\n             bytes[3 + off];\n  return res >>> 0;\n};\n\nexports.writeUInt32BE = function writeUInt32BE(bytes, value, off) {\n  bytes[0 + off] = value >>> 24;\n  bytes[1 + off] = (value >>> 16) & 0xff;\n  bytes[2 + off] = (value >>> 8) & 0xff;\n  bytes[3 + off] = value & 0xff;\n};\n\nexports.ip = function ip(inL, inR, out, off) {\n  var outL = 0;\n  var outR = 0;\n\n  for (var i = 6; i >= 0; i -= 2) {\n    for (var j = 0; j <= 24; j += 8) {\n      outL <<= 1;\n      outL |= (inR >>> (j + i)) & 1;\n    }\n    for (var j = 0; j <= 24; j += 8) {\n      outL <<= 1;\n      outL |= (inL >>> (j + i)) & 1;\n    }\n  }\n\n  for (var i = 6; i >= 0; i -= 2) {\n    for (var j = 1; j <= 25; j += 8) {\n      outR <<= 1;\n      outR |= (inR >>> (j + i)) & 1;\n    }\n    for (var j = 1; j <= 25; j += 8) {\n      outR <<= 1;\n      outR |= (inL >>> (j + i)) & 1;\n    }\n  }\n\n  out[off + 0] = outL >>> 0;\n  out[off + 1] = outR >>> 0;\n};\n\nexports.rip = function rip(inL, inR, out, off) {\n  var outL = 0;\n  var outR = 0;\n\n  for (var i = 0; i < 4; i++) {\n    for (var j = 24; j >= 0; j -= 8) {\n      outL <<= 1;\n      outL |= (inR >>> (j + i)) & 1;\n      outL <<= 1;\n      outL |= (inL >>> (j + i)) & 1;\n    }\n  }\n  for (var i = 4; i < 8; i++) {\n    for (var j = 24; j >= 0; j -= 8) {\n      outR <<= 1;\n      outR |= (inR >>> (j + i)) & 1;\n      outR <<= 1;\n      outR |= (inL >>> (j + i)) & 1;\n    }\n  }\n\n  out[off + 0] = outL >>> 0;\n  out[off + 1] = outR >>> 0;\n};\n\nexports.pc1 = function pc1(inL, inR, out, off) {\n  var outL = 0;\n  var outR = 0;\n\n  // 7, 15, 23, 31, 39, 47, 55, 63\n  // 6, 14, 22, 30, 39, 47, 55, 63\n  // 5, 13, 21, 29, 39, 47, 55, 63\n  // 4, 12, 20, 28\n  for (var i = 7; i >= 5; i--) {\n    for (var j = 0; j <= 24; j += 8) {\n      outL <<= 1;\n      outL |= (inR >> (j + i)) & 1;\n    }\n    for (var j = 0; j <= 24; j += 8) {\n      outL <<= 1;\n      outL |= (inL >> (j + i)) & 1;\n    }\n  }\n  for (var j = 0; j <= 24; j += 8) {\n    outL <<= 1;\n    outL |= (inR >> (j + i)) & 1;\n  }\n\n  // 1, 9, 17, 25, 33, 41, 49, 57\n  // 2, 10, 18, 26, 34, 42, 50, 58\n  // 3, 11, 19, 27, 35, 43, 51, 59\n  // 36, 44, 52, 60\n  for (var i = 1; i <= 3; i++) {\n    for (var j = 0; j <= 24; j += 8) {\n      outR <<= 1;\n      outR |= (inR >> (j + i)) & 1;\n    }\n    for (var j = 0; j <= 24; j += 8) {\n      outR <<= 1;\n      outR |= (inL >> (j + i)) & 1;\n    }\n  }\n  for (var j = 0; j <= 24; j += 8) {\n    outR <<= 1;\n    outR |= (inL >> (j + i)) & 1;\n  }\n\n  out[off + 0] = outL >>> 0;\n  out[off + 1] = outR >>> 0;\n};\n\nexports.r28shl = function r28shl(num, shift) {\n  return ((num << shift) & 0xfffffff) | (num >>> (28 - shift));\n};\n\nvar pc2table = [\n  // inL => outL\n  14, 11, 17, 4, 27, 23, 25, 0,\n  13, 22, 7, 18, 5, 9, 16, 24,\n  2, 20, 12, 21, 1, 8, 15, 26,\n\n  // inR => outR\n  15, 4, 25, 19, 9, 1, 26, 16,\n  5, 11, 23, 8, 12, 7, 17, 0,\n  22, 3, 10, 14, 6, 20, 27, 24\n];\n\nexports.pc2 = function pc2(inL, inR, out, off) {\n  var outL = 0;\n  var outR = 0;\n\n  var len = pc2table.length >>> 1;\n  for (var i = 0; i < len; i++) {\n    outL <<= 1;\n    outL |= (inL >>> pc2table[i]) & 0x1;\n  }\n  for (var i = len; i < pc2table.length; i++) {\n    outR <<= 1;\n    outR |= (inR >>> pc2table[i]) & 0x1;\n  }\n\n  out[off + 0] = outL >>> 0;\n  out[off + 1] = outR >>> 0;\n};\n\nexports.expand = function expand(r, out, off) {\n  var outL = 0;\n  var outR = 0;\n\n  outL = ((r & 1) << 5) | (r >>> 27);\n  for (var i = 23; i >= 15; i -= 4) {\n    outL <<= 6;\n    outL |= (r >>> i) & 0x3f;\n  }\n  for (var i = 11; i >= 3; i -= 4) {\n    outR |= (r >>> i) & 0x3f;\n    outR <<= 6;\n  }\n  outR |= ((r & 0x1f) << 1) | (r >>> 31);\n\n  out[off + 0] = outL >>> 0;\n  out[off + 1] = outR >>> 0;\n};\n\nvar sTable = [\n  14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,\n  3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,\n  4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,\n  15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13,\n\n  15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,\n  9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,\n  0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,\n  5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9,\n\n  10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,\n  1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,\n  13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,\n  11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12,\n\n  7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,\n  1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,\n  10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,\n  15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14,\n\n  2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,\n  8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,\n  4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,\n  15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3,\n\n  12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,\n  0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,\n  9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,\n  7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13,\n\n  4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,\n  3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,\n  1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,\n  10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12,\n\n  13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,\n  10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,\n  7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,\n  0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11\n];\n\nexports.substitute = function substitute(inL, inR) {\n  var out = 0;\n  for (var i = 0; i < 4; i++) {\n    var b = (inL >>> (18 - i * 6)) & 0x3f;\n    var sb = sTable[i * 0x40 + b];\n\n    out <<= 4;\n    out |= sb;\n  }\n  for (var i = 0; i < 4; i++) {\n    var b = (inR >>> (18 - i * 6)) & 0x3f;\n    var sb = sTable[4 * 0x40 + i * 0x40 + b];\n\n    out <<= 4;\n    out |= sb;\n  }\n  return out >>> 0;\n};\n\nvar permuteTable = [\n  16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22,\n  30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7\n];\n\nexports.permute = function permute(num) {\n  var out = 0;\n  for (var i = 0; i < permuteTable.length; i++) {\n    out <<= 1;\n    out |= (num >>> permuteTable[i]) & 0x1;\n  }\n  return out >>> 0;\n};\n\nexports.padSplit = function padSplit(num, size, group) {\n  var str = num.toString(2);\n  while (str.length < size)\n    str = '0' + str;\n\n  var out = [];\n  for (var i = 0; i < size; i += group)\n    out.push(str.slice(i, i + group));\n  return out.join(' ');\n};\n","var generatePrime = require('./lib/generatePrime')\nvar primes = require('./lib/primes.json')\n\nvar DH = require('./lib/dh')\n\nfunction getDiffieHellman (mod) {\n  var prime = new Buffer(primes[mod].prime, 'hex')\n  var gen = new Buffer(primes[mod].gen, 'hex')\n\n  return new DH(prime, gen)\n}\n\nvar ENCODINGS = {\n  'binary': true, 'hex': true, 'base64': true\n}\n\nfunction createDiffieHellman (prime, enc, generator, genc) {\n  if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) {\n    return createDiffieHellman(prime, 'binary', enc, generator)\n  }\n\n  enc = enc || 'binary'\n  genc = genc || 'binary'\n  generator = generator || new Buffer([2])\n\n  if (!Buffer.isBuffer(generator)) {\n    generator = new Buffer(generator, genc)\n  }\n\n  if (typeof prime === 'number') {\n    return new DH(generatePrime(prime, generator), generator, true)\n  }\n\n  if (!Buffer.isBuffer(prime)) {\n    prime = new Buffer(prime, enc)\n  }\n\n  return new DH(prime, generator, true)\n}\n\nexports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman\nexports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman\n","var BN = require('bn.js');\nvar MillerRabin = require('miller-rabin');\nvar millerRabin = new MillerRabin();\nvar TWENTYFOUR = new BN(24);\nvar ELEVEN = new BN(11);\nvar TEN = new BN(10);\nvar THREE = new BN(3);\nvar SEVEN = new BN(7);\nvar primes = require('./generatePrime');\nvar randomBytes = require('randombytes');\nmodule.exports = DH;\n\nfunction setPublicKey(pub, enc) {\n  enc = enc || 'utf8';\n  if (!Buffer.isBuffer(pub)) {\n    pub = new Buffer(pub, enc);\n  }\n  this._pub = new BN(pub);\n  return this;\n}\n\nfunction setPrivateKey(priv, enc) {\n  enc = enc || 'utf8';\n  if (!Buffer.isBuffer(priv)) {\n    priv = new Buffer(priv, enc);\n  }\n  this._priv = new BN(priv);\n  return this;\n}\n\nvar primeCache = {};\nfunction checkPrime(prime, generator) {\n  var gen = generator.toString('hex');\n  var hex = [gen, prime.toString(16)].join('_');\n  if (hex in primeCache) {\n    return primeCache[hex];\n  }\n  var error = 0;\n\n  if (prime.isEven() ||\n    !primes.simpleSieve ||\n    !primes.fermatTest(prime) ||\n    !millerRabin.test(prime)) {\n    //not a prime so +1\n    error += 1;\n\n    if (gen === '02' || gen === '05') {\n      // we'd be able to check the generator\n      // it would fail so +8\n      error += 8;\n    } else {\n      //we wouldn't be able to test the generator\n      // so +4\n      error += 4;\n    }\n    primeCache[hex] = error;\n    return error;\n  }\n  if (!millerRabin.test(prime.shrn(1))) {\n    //not a safe prime\n    error += 2;\n  }\n  var rem;\n  switch (gen) {\n    case '02':\n      if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) {\n        // unsuidable generator\n        error += 8;\n      }\n      break;\n    case '05':\n      rem = prime.mod(TEN);\n      if (rem.cmp(THREE) && rem.cmp(SEVEN)) {\n        // prime mod 10 needs to equal 3 or 7\n        error += 8;\n      }\n      break;\n    default:\n      error += 4;\n  }\n  primeCache[hex] = error;\n  return error;\n}\n\nfunction DH(prime, generator, malleable) {\n  this.setGenerator(generator);\n  this.__prime = new BN(prime);\n  this._prime = BN.mont(this.__prime);\n  this._primeLen = prime.length;\n  this._pub = undefined;\n  this._priv = undefined;\n  this._primeCode = undefined;\n  if (malleable) {\n    this.setPublicKey = setPublicKey;\n    this.setPrivateKey = setPrivateKey;\n  } else {\n    this._primeCode = 8;\n  }\n}\nObject.defineProperty(DH.prototype, 'verifyError', {\n  enumerable: true,\n  get: function () {\n    if (typeof this._primeCode !== 'number') {\n      this._primeCode = checkPrime(this.__prime, this.__gen);\n    }\n    return this._primeCode;\n  }\n});\nDH.prototype.generateKeys = function () {\n  if (!this._priv) {\n    this._priv = new BN(randomBytes(this._primeLen));\n  }\n  this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed();\n  return this.getPublicKey();\n};\n\nDH.prototype.computeSecret = function (other) {\n  other = new BN(other);\n  other = other.toRed(this._prime);\n  var secret = other.redPow(this._priv).fromRed();\n  var out = new Buffer(secret.toArray());\n  var prime = this.getPrime();\n  if (out.length < prime.length) {\n    var front = new Buffer(prime.length - out.length);\n    front.fill(0);\n    out = Buffer.concat([front, out]);\n  }\n  return out;\n};\n\nDH.prototype.getPublicKey = function getPublicKey(enc) {\n  return formatReturnValue(this._pub, enc);\n};\n\nDH.prototype.getPrivateKey = function getPrivateKey(enc) {\n  return formatReturnValue(this._priv, enc);\n};\n\nDH.prototype.getPrime = function (enc) {\n  return formatReturnValue(this.__prime, enc);\n};\n\nDH.prototype.getGenerator = function (enc) {\n  return formatReturnValue(this._gen, enc);\n};\n\nDH.prototype.setGenerator = function (gen, enc) {\n  enc = enc || 'utf8';\n  if (!Buffer.isBuffer(gen)) {\n    gen = new Buffer(gen, enc);\n  }\n  this.__gen = gen;\n  this._gen = new BN(gen);\n  return this;\n};\n\nfunction formatReturnValue(bn, enc) {\n  var buf = new Buffer(bn.toArray());\n  if (!enc) {\n    return buf;\n  } else {\n    return buf.toString(enc);\n  }\n}\n","var randomBytes = require('randombytes');\nmodule.exports = findPrime;\nfindPrime.simpleSieve = simpleSieve;\nfindPrime.fermatTest = fermatTest;\nvar BN = require('bn.js');\nvar TWENTYFOUR = new BN(24);\nvar MillerRabin = require('miller-rabin');\nvar millerRabin = new MillerRabin();\nvar ONE = new BN(1);\nvar TWO = new BN(2);\nvar FIVE = new BN(5);\nvar SIXTEEN = new BN(16);\nvar EIGHT = new BN(8);\nvar TEN = new BN(10);\nvar THREE = new BN(3);\nvar SEVEN = new BN(7);\nvar ELEVEN = new BN(11);\nvar FOUR = new BN(4);\nvar TWELVE = new BN(12);\nvar primes = null;\n\nfunction _getPrimes() {\n  if (primes !== null)\n    return primes;\n\n  var limit = 0x100000;\n  var res = [];\n  res[0] = 2;\n  for (var i = 1, k = 3; k < limit; k += 2) {\n    var sqrt = Math.ceil(Math.sqrt(k));\n    for (var j = 0; j < i && res[j] <= sqrt; j++)\n      if (k % res[j] === 0)\n        break;\n\n    if (i !== j && res[j] <= sqrt)\n      continue;\n\n    res[i++] = k;\n  }\n  primes = res;\n  return res;\n}\n\nfunction simpleSieve(p) {\n  var primes = _getPrimes();\n\n  for (var i = 0; i < primes.length; i++)\n    if (p.modn(primes[i]) === 0) {\n      if (p.cmpn(primes[i]) === 0) {\n        return true;\n      } else {\n        return false;\n      }\n    }\n\n  return true;\n}\n\nfunction fermatTest(p) {\n  var red = BN.mont(p);\n  return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0;\n}\n\nfunction findPrime(bits, gen) {\n  if (bits < 16) {\n    // this is what openssl does\n    if (gen === 2 || gen === 5) {\n      return new BN([0x8c, 0x7b]);\n    } else {\n      return new BN([0x8c, 0x27]);\n    }\n  }\n  gen = new BN(gen);\n\n  var num, n2;\n\n  while (true) {\n    num = new BN(randomBytes(Math.ceil(bits / 8)));\n    while (num.bitLength() > bits) {\n      num.ishrn(1);\n    }\n    if (num.isEven()) {\n      num.iadd(ONE);\n    }\n    if (!num.testn(1)) {\n      num.iadd(TWO);\n    }\n    if (!gen.cmp(TWO)) {\n      while (num.mod(TWENTYFOUR).cmp(ELEVEN)) {\n        num.iadd(FOUR);\n      }\n    } else if (!gen.cmp(FIVE)) {\n      while (num.mod(TEN).cmp(THREE)) {\n        num.iadd(FOUR);\n      }\n    }\n    n2 = num.shrn(1);\n    if (simpleSieve(n2) && simpleSieve(num) &&\n      fermatTest(n2) && fermatTest(num) &&\n      millerRabin.test(n2) && millerRabin.test(num)) {\n      return num;\n    }\n  }\n\n}\n","module.exports={\n    \"modp1\": {\n        \"gen\": \"02\",\n        \"prime\": \"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff\"\n    },\n    \"modp2\": {\n        \"gen\": \"02\",\n        \"prime\": \"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff\"\n    },\n    \"modp5\": {\n        \"gen\": \"02\",\n        \"prime\": \"ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff\"\n    },\n    \"modp14\": {\n        \"gen\": \"02\",\n        \"prime\": \"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\"\n    },\n    \"modp15\": {\n        \"gen\": \"02\",\n        \"prime\": \"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\"\n    },\n    \"modp16\": {\n        \"gen\": \"02\",\n        \"prime\": \"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\"\n    },\n    \"modp17\": {\n        \"gen\": \"02\",\n        \"prime\": \"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\"\n    },\n    \"modp18\": {\n        \"gen\": \"02\",\n        \"prime\": \"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\"\n    }\n}","'use strict';\n\nvar elliptic = exports;\n\nelliptic.version = require('../package.json').version;\nelliptic.utils = require('./elliptic/utils');\nelliptic.rand = require('brorand');\nelliptic.curve = require('./elliptic/curve');\nelliptic.curves = require('./elliptic/curves');\n\n// Protocols\nelliptic.ec = require('./elliptic/ec');\nelliptic.eddsa = require('./elliptic/eddsa');\n","'use strict';\n\nvar BN = require('bn.js');\nvar utils = require('../utils');\nvar getNAF = utils.getNAF;\nvar getJSF = utils.getJSF;\nvar assert = utils.assert;\n\nfunction BaseCurve(type, conf) {\n  this.type = type;\n  this.p = new BN(conf.p, 16);\n\n  // Use Montgomery, when there is no fast reduction for the prime\n  this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p);\n\n  // Useful for many curves\n  this.zero = new BN(0).toRed(this.red);\n  this.one = new BN(1).toRed(this.red);\n  this.two = new BN(2).toRed(this.red);\n\n  // Curve configuration, optional\n  this.n = conf.n && new BN(conf.n, 16);\n  this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);\n\n  // Temporary arrays\n  this._wnafT1 = new Array(4);\n  this._wnafT2 = new Array(4);\n  this._wnafT3 = new Array(4);\n  this._wnafT4 = new Array(4);\n\n  this._bitLength = this.n ? this.n.bitLength() : 0;\n\n  // Generalized Greg Maxwell's trick\n  var adjustCount = this.n && this.p.div(this.n);\n  if (!adjustCount || adjustCount.cmpn(100) > 0) {\n    this.redN = null;\n  } else {\n    this._maxwellTrick = true;\n    this.redN = this.n.toRed(this.red);\n  }\n}\nmodule.exports = BaseCurve;\n\nBaseCurve.prototype.point = function point() {\n  throw new Error('Not implemented');\n};\n\nBaseCurve.prototype.validate = function validate() {\n  throw new Error('Not implemented');\n};\n\nBaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {\n  assert(p.precomputed);\n  var doubles = p._getDoubles();\n\n  var naf = getNAF(k, 1, this._bitLength);\n  var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);\n  I /= 3;\n\n  // Translate into more windowed form\n  var repr = [];\n  for (var j = 0; j < naf.length; j += doubles.step) {\n    var nafW = 0;\n    for (var k = j + doubles.step - 1; k >= j; k--)\n      nafW = (nafW << 1) + naf[k];\n    repr.push(nafW);\n  }\n\n  var a = this.jpoint(null, null, null);\n  var b = this.jpoint(null, null, null);\n  for (var i = I; i > 0; i--) {\n    for (var j = 0; j < repr.length; j++) {\n      var nafW = repr[j];\n      if (nafW === i)\n        b = b.mixedAdd(doubles.points[j]);\n      else if (nafW === -i)\n        b = b.mixedAdd(doubles.points[j].neg());\n    }\n    a = a.add(b);\n  }\n  return a.toP();\n};\n\nBaseCurve.prototype._wnafMul = function _wnafMul(p, k) {\n  var w = 4;\n\n  // Precompute window\n  var nafPoints = p._getNAFPoints(w);\n  w = nafPoints.wnd;\n  var wnd = nafPoints.points;\n\n  // Get NAF form\n  var naf = getNAF(k, w, this._bitLength);\n\n  // Add `this`*(N+1) for every w-NAF index\n  var acc = this.jpoint(null, null, null);\n  for (var i = naf.length - 1; i >= 0; i--) {\n    // Count zeroes\n    for (var k = 0; i >= 0 && naf[i] === 0; i--)\n      k++;\n    if (i >= 0)\n      k++;\n    acc = acc.dblp(k);\n\n    if (i < 0)\n      break;\n    var z = naf[i];\n    assert(z !== 0);\n    if (p.type === 'affine') {\n      // J +- P\n      if (z > 0)\n        acc = acc.mixedAdd(wnd[(z - 1) >> 1]);\n      else\n        acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());\n    } else {\n      // J +- J\n      if (z > 0)\n        acc = acc.add(wnd[(z - 1) >> 1]);\n      else\n        acc = acc.add(wnd[(-z - 1) >> 1].neg());\n    }\n  }\n  return p.type === 'affine' ? acc.toP() : acc;\n};\n\nBaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,\n                                                       points,\n                                                       coeffs,\n                                                       len,\n                                                       jacobianResult) {\n  var wndWidth = this._wnafT1;\n  var wnd = this._wnafT2;\n  var naf = this._wnafT3;\n\n  // Fill all arrays\n  var max = 0;\n  for (var i = 0; i < len; i++) {\n    var p = points[i];\n    var nafPoints = p._getNAFPoints(defW);\n    wndWidth[i] = nafPoints.wnd;\n    wnd[i] = nafPoints.points;\n  }\n\n  // Comb small window NAFs\n  for (var i = len - 1; i >= 1; i -= 2) {\n    var a = i - 1;\n    var b = i;\n    if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {\n      naf[a] = getNAF(coeffs[a], wndWidth[a], this._bitLength);\n      naf[b] = getNAF(coeffs[b], wndWidth[b], this._bitLength);\n      max = Math.max(naf[a].length, max);\n      max = Math.max(naf[b].length, max);\n      continue;\n    }\n\n    var comb = [\n      points[a], /* 1 */\n      null, /* 3 */\n      null, /* 5 */\n      points[b] /* 7 */\n    ];\n\n    // Try to avoid Projective points, if possible\n    if (points[a].y.cmp(points[b].y) === 0) {\n      comb[1] = points[a].add(points[b]);\n      comb[2] = points[a].toJ().mixedAdd(points[b].neg());\n    } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {\n      comb[1] = points[a].toJ().mixedAdd(points[b]);\n      comb[2] = points[a].add(points[b].neg());\n    } else {\n      comb[1] = points[a].toJ().mixedAdd(points[b]);\n      comb[2] = points[a].toJ().mixedAdd(points[b].neg());\n    }\n\n    var index = [\n      -3, /* -1 -1 */\n      -1, /* -1 0 */\n      -5, /* -1 1 */\n      -7, /* 0 -1 */\n      0, /* 0 0 */\n      7, /* 0 1 */\n      5, /* 1 -1 */\n      1, /* 1 0 */\n      3  /* 1 1 */\n    ];\n\n    var jsf = getJSF(coeffs[a], coeffs[b]);\n    max = Math.max(jsf[0].length, max);\n    naf[a] = new Array(max);\n    naf[b] = new Array(max);\n    for (var j = 0; j < max; j++) {\n      var ja = jsf[0][j] | 0;\n      var jb = jsf[1][j] | 0;\n\n      naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];\n      naf[b][j] = 0;\n      wnd[a] = comb;\n    }\n  }\n\n  var acc = this.jpoint(null, null, null);\n  var tmp = this._wnafT4;\n  for (var i = max; i >= 0; i--) {\n    var k = 0;\n\n    while (i >= 0) {\n      var zero = true;\n      for (var j = 0; j < len; j++) {\n        tmp[j] = naf[j][i] | 0;\n        if (tmp[j] !== 0)\n          zero = false;\n      }\n      if (!zero)\n        break;\n      k++;\n      i--;\n    }\n    if (i >= 0)\n      k++;\n    acc = acc.dblp(k);\n    if (i < 0)\n      break;\n\n    for (var j = 0; j < len; j++) {\n      var z = tmp[j];\n      var p;\n      if (z === 0)\n        continue;\n      else if (z > 0)\n        p = wnd[j][(z - 1) >> 1];\n      else if (z < 0)\n        p = wnd[j][(-z - 1) >> 1].neg();\n\n      if (p.type === 'affine')\n        acc = acc.mixedAdd(p);\n      else\n        acc = acc.add(p);\n    }\n  }\n  // Zeroify references\n  for (var i = 0; i < len; i++)\n    wnd[i] = null;\n\n  if (jacobianResult)\n    return acc;\n  else\n    return acc.toP();\n};\n\nfunction BasePoint(curve, type) {\n  this.curve = curve;\n  this.type = type;\n  this.precomputed = null;\n}\nBaseCurve.BasePoint = BasePoint;\n\nBasePoint.prototype.eq = function eq(/*other*/) {\n  throw new Error('Not implemented');\n};\n\nBasePoint.prototype.validate = function validate() {\n  return this.curve.validate(this);\n};\n\nBaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) {\n  bytes = utils.toArray(bytes, enc);\n\n  var len = this.p.byteLength();\n\n  // uncompressed, hybrid-odd, hybrid-even\n  if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) &&\n      bytes.length - 1 === 2 * len) {\n    if (bytes[0] === 0x06)\n      assert(bytes[bytes.length - 1] % 2 === 0);\n    else if (bytes[0] === 0x07)\n      assert(bytes[bytes.length - 1] % 2 === 1);\n\n    var res =  this.point(bytes.slice(1, 1 + len),\n                          bytes.slice(1 + len, 1 + 2 * len));\n\n    return res;\n  } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) &&\n              bytes.length - 1 === len) {\n    return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03);\n  }\n  throw new Error('Unknown point format');\n};\n\nBasePoint.prototype.encodeCompressed = function encodeCompressed(enc) {\n  return this.encode(enc, true);\n};\n\nBasePoint.prototype._encode = function _encode(compact) {\n  var len = this.curve.p.byteLength();\n  var x = this.getX().toArray('be', len);\n\n  if (compact)\n    return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x);\n\n  return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ;\n};\n\nBasePoint.prototype.encode = function encode(enc, compact) {\n  return utils.encode(this._encode(compact), enc);\n};\n\nBasePoint.prototype.precompute = function precompute(power) {\n  if (this.precomputed)\n    return this;\n\n  var precomputed = {\n    doubles: null,\n    naf: null,\n    beta: null\n  };\n  precomputed.naf = this._getNAFPoints(8);\n  precomputed.doubles = this._getDoubles(4, power);\n  precomputed.beta = this._getBeta();\n  this.precomputed = precomputed;\n\n  return this;\n};\n\nBasePoint.prototype._hasDoubles = function _hasDoubles(k) {\n  if (!this.precomputed)\n    return false;\n\n  var doubles = this.precomputed.doubles;\n  if (!doubles)\n    return false;\n\n  return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step);\n};\n\nBasePoint.prototype._getDoubles = function _getDoubles(step, power) {\n  if (this.precomputed && this.precomputed.doubles)\n    return this.precomputed.doubles;\n\n  var doubles = [ this ];\n  var acc = this;\n  for (var i = 0; i < power; i += step) {\n    for (var j = 0; j < step; j++)\n      acc = acc.dbl();\n    doubles.push(acc);\n  }\n  return {\n    step: step,\n    points: doubles\n  };\n};\n\nBasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {\n  if (this.precomputed && this.precomputed.naf)\n    return this.precomputed.naf;\n\n  var res = [ this ];\n  var max = (1 << wnd) - 1;\n  var dbl = max === 1 ? null : this.dbl();\n  for (var i = 1; i < max; i++)\n    res[i] = res[i - 1].add(dbl);\n  return {\n    wnd: wnd,\n    points: res\n  };\n};\n\nBasePoint.prototype._getBeta = function _getBeta() {\n  return null;\n};\n\nBasePoint.prototype.dblp = function dblp(k) {\n  var r = this;\n  for (var i = 0; i < k; i++)\n    r = r.dbl();\n  return r;\n};\n","'use strict';\n\nvar utils = require('../utils');\nvar BN = require('bn.js');\nvar inherits = require('inherits');\nvar Base = require('./base');\n\nvar assert = utils.assert;\n\nfunction EdwardsCurve(conf) {\n  // NOTE: Important as we are creating point in Base.call()\n  this.twisted = (conf.a | 0) !== 1;\n  this.mOneA = this.twisted && (conf.a | 0) === -1;\n  this.extended = this.mOneA;\n\n  Base.call(this, 'edwards', conf);\n\n  this.a = new BN(conf.a, 16).umod(this.red.m);\n  this.a = this.a.toRed(this.red);\n  this.c = new BN(conf.c, 16).toRed(this.red);\n  this.c2 = this.c.redSqr();\n  this.d = new BN(conf.d, 16).toRed(this.red);\n  this.dd = this.d.redAdd(this.d);\n\n  assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);\n  this.oneC = (conf.c | 0) === 1;\n}\ninherits(EdwardsCurve, Base);\nmodule.exports = EdwardsCurve;\n\nEdwardsCurve.prototype._mulA = function _mulA(num) {\n  if (this.mOneA)\n    return num.redNeg();\n  else\n    return this.a.redMul(num);\n};\n\nEdwardsCurve.prototype._mulC = function _mulC(num) {\n  if (this.oneC)\n    return num;\n  else\n    return this.c.redMul(num);\n};\n\n// Just for compatibility with Short curve\nEdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {\n  return this.point(x, y, z, t);\n};\n\nEdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) {\n  x = new BN(x, 16);\n  if (!x.red)\n    x = x.toRed(this.red);\n\n  var x2 = x.redSqr();\n  var rhs = this.c2.redSub(this.a.redMul(x2));\n  var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));\n\n  var y2 = rhs.redMul(lhs.redInvm());\n  var y = y2.redSqrt();\n  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)\n    throw new Error('invalid point');\n\n  var isOdd = y.fromRed().isOdd();\n  if (odd && !isOdd || !odd && isOdd)\n    y = y.redNeg();\n\n  return this.point(x, y);\n};\n\nEdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {\n  y = new BN(y, 16);\n  if (!y.red)\n    y = y.toRed(this.red);\n\n  // x^2 = (y^2 - c^2) / (c^2 d y^2 - a)\n  var y2 = y.redSqr();\n  var lhs = y2.redSub(this.c2);\n  var rhs = y2.redMul(this.d).redMul(this.c2).redSub(this.a);\n  var x2 = lhs.redMul(rhs.redInvm());\n\n  if (x2.cmp(this.zero) === 0) {\n    if (odd)\n      throw new Error('invalid point');\n    else\n      return this.point(this.zero, y);\n  }\n\n  var x = x2.redSqrt();\n  if (x.redSqr().redSub(x2).cmp(this.zero) !== 0)\n    throw new Error('invalid point');\n\n  if (x.fromRed().isOdd() !== odd)\n    x = x.redNeg();\n\n  return this.point(x, y);\n};\n\nEdwardsCurve.prototype.validate = function validate(point) {\n  if (point.isInfinity())\n    return true;\n\n  // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)\n  point.normalize();\n\n  var x2 = point.x.redSqr();\n  var y2 = point.y.redSqr();\n  var lhs = x2.redMul(this.a).redAdd(y2);\n  var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));\n\n  return lhs.cmp(rhs) === 0;\n};\n\nfunction Point(curve, x, y, z, t) {\n  Base.BasePoint.call(this, curve, 'projective');\n  if (x === null && y === null && z === null) {\n    this.x = this.curve.zero;\n    this.y = this.curve.one;\n    this.z = this.curve.one;\n    this.t = this.curve.zero;\n    this.zOne = true;\n  } else {\n    this.x = new BN(x, 16);\n    this.y = new BN(y, 16);\n    this.z = z ? new BN(z, 16) : this.curve.one;\n    this.t = t && new BN(t, 16);\n    if (!this.x.red)\n      this.x = this.x.toRed(this.curve.red);\n    if (!this.y.red)\n      this.y = this.y.toRed(this.curve.red);\n    if (!this.z.red)\n      this.z = this.z.toRed(this.curve.red);\n    if (this.t && !this.t.red)\n      this.t = this.t.toRed(this.curve.red);\n    this.zOne = this.z === this.curve.one;\n\n    // Use extended coordinates\n    if (this.curve.extended && !this.t) {\n      this.t = this.x.redMul(this.y);\n      if (!this.zOne)\n        this.t = this.t.redMul(this.z.redInvm());\n    }\n  }\n}\ninherits(Point, Base.BasePoint);\n\nEdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {\n  return Point.fromJSON(this, obj);\n};\n\nEdwardsCurve.prototype.point = function point(x, y, z, t) {\n  return new Point(this, x, y, z, t);\n};\n\nPoint.fromJSON = function fromJSON(curve, obj) {\n  return new Point(curve, obj[0], obj[1], obj[2]);\n};\n\nPoint.prototype.inspect = function inspect() {\n  if (this.isInfinity())\n    return '<EC Point Infinity>';\n  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +\n      ' y: ' + this.y.fromRed().toString(16, 2) +\n      ' z: ' + this.z.fromRed().toString(16, 2) + '>';\n};\n\nPoint.prototype.isInfinity = function isInfinity() {\n  // XXX This code assumes that zero is always zero in red\n  return this.x.cmpn(0) === 0 &&\n    (this.y.cmp(this.z) === 0 ||\n    (this.zOne && this.y.cmp(this.curve.c) === 0));\n};\n\nPoint.prototype._extDbl = function _extDbl() {\n  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html\n  //     #doubling-dbl-2008-hwcd\n  // 4M + 4S\n\n  // A = X1^2\n  var a = this.x.redSqr();\n  // B = Y1^2\n  var b = this.y.redSqr();\n  // C = 2 * Z1^2\n  var c = this.z.redSqr();\n  c = c.redIAdd(c);\n  // D = a * A\n  var d = this.curve._mulA(a);\n  // E = (X1 + Y1)^2 - A - B\n  var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);\n  // G = D + B\n  var g = d.redAdd(b);\n  // F = G - C\n  var f = g.redSub(c);\n  // H = D - B\n  var h = d.redSub(b);\n  // X3 = E * F\n  var nx = e.redMul(f);\n  // Y3 = G * H\n  var ny = g.redMul(h);\n  // T3 = E * H\n  var nt = e.redMul(h);\n  // Z3 = F * G\n  var nz = f.redMul(g);\n  return this.curve.point(nx, ny, nz, nt);\n};\n\nPoint.prototype._projDbl = function _projDbl() {\n  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html\n  //     #doubling-dbl-2008-bbjlp\n  //     #doubling-dbl-2007-bl\n  // and others\n  // Generally 3M + 4S or 2M + 4S\n\n  // B = (X1 + Y1)^2\n  var b = this.x.redAdd(this.y).redSqr();\n  // C = X1^2\n  var c = this.x.redSqr();\n  // D = Y1^2\n  var d = this.y.redSqr();\n\n  var nx;\n  var ny;\n  var nz;\n  if (this.curve.twisted) {\n    // E = a * C\n    var e = this.curve._mulA(c);\n    // F = E + D\n    var f = e.redAdd(d);\n    if (this.zOne) {\n      // X3 = (B - C - D) * (F - 2)\n      nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));\n      // Y3 = F * (E - D)\n      ny = f.redMul(e.redSub(d));\n      // Z3 = F^2 - 2 * F\n      nz = f.redSqr().redSub(f).redSub(f);\n    } else {\n      // H = Z1^2\n      var h = this.z.redSqr();\n      // J = F - 2 * H\n      var j = f.redSub(h).redISub(h);\n      // X3 = (B-C-D)*J\n      nx = b.redSub(c).redISub(d).redMul(j);\n      // Y3 = F * (E - D)\n      ny = f.redMul(e.redSub(d));\n      // Z3 = F * J\n      nz = f.redMul(j);\n    }\n  } else {\n    // E = C + D\n    var e = c.redAdd(d);\n    // H = (c * Z1)^2\n    var h = this.curve._mulC(this.z).redSqr();\n    // J = E - 2 * H\n    var j = e.redSub(h).redSub(h);\n    // X3 = c * (B - E) * J\n    nx = this.curve._mulC(b.redISub(e)).redMul(j);\n    // Y3 = c * E * (C - D)\n    ny = this.curve._mulC(e).redMul(c.redISub(d));\n    // Z3 = E * J\n    nz = e.redMul(j);\n  }\n  return this.curve.point(nx, ny, nz);\n};\n\nPoint.prototype.dbl = function dbl() {\n  if (this.isInfinity())\n    return this;\n\n  // Double in extended coordinates\n  if (this.curve.extended)\n    return this._extDbl();\n  else\n    return this._projDbl();\n};\n\nPoint.prototype._extAdd = function _extAdd(p) {\n  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html\n  //     #addition-add-2008-hwcd-3\n  // 8M\n\n  // A = (Y1 - X1) * (Y2 - X2)\n  var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));\n  // B = (Y1 + X1) * (Y2 + X2)\n  var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));\n  // C = T1 * k * T2\n  var c = this.t.redMul(this.curve.dd).redMul(p.t);\n  // D = Z1 * 2 * Z2\n  var d = this.z.redMul(p.z.redAdd(p.z));\n  // E = B - A\n  var e = b.redSub(a);\n  // F = D - C\n  var f = d.redSub(c);\n  // G = D + C\n  var g = d.redAdd(c);\n  // H = B + A\n  var h = b.redAdd(a);\n  // X3 = E * F\n  var nx = e.redMul(f);\n  // Y3 = G * H\n  var ny = g.redMul(h);\n  // T3 = E * H\n  var nt = e.redMul(h);\n  // Z3 = F * G\n  var nz = f.redMul(g);\n  return this.curve.point(nx, ny, nz, nt);\n};\n\nPoint.prototype._projAdd = function _projAdd(p) {\n  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html\n  //     #addition-add-2008-bbjlp\n  //     #addition-add-2007-bl\n  // 10M + 1S\n\n  // A = Z1 * Z2\n  var a = this.z.redMul(p.z);\n  // B = A^2\n  var b = a.redSqr();\n  // C = X1 * X2\n  var c = this.x.redMul(p.x);\n  // D = Y1 * Y2\n  var d = this.y.redMul(p.y);\n  // E = d * C * D\n  var e = this.curve.d.redMul(c).redMul(d);\n  // F = B - E\n  var f = b.redSub(e);\n  // G = B + E\n  var g = b.redAdd(e);\n  // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)\n  var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);\n  var nx = a.redMul(f).redMul(tmp);\n  var ny;\n  var nz;\n  if (this.curve.twisted) {\n    // Y3 = A * G * (D - a * C)\n    ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));\n    // Z3 = F * G\n    nz = f.redMul(g);\n  } else {\n    // Y3 = A * G * (D - C)\n    ny = a.redMul(g).redMul(d.redSub(c));\n    // Z3 = c * F * G\n    nz = this.curve._mulC(f).redMul(g);\n  }\n  return this.curve.point(nx, ny, nz);\n};\n\nPoint.prototype.add = function add(p) {\n  if (this.isInfinity())\n    return p;\n  if (p.isInfinity())\n    return this;\n\n  if (this.curve.extended)\n    return this._extAdd(p);\n  else\n    return this._projAdd(p);\n};\n\nPoint.prototype.mul = function mul(k) {\n  if (this._hasDoubles(k))\n    return this.curve._fixedNafMul(this, k);\n  else\n    return this.curve._wnafMul(this, k);\n};\n\nPoint.prototype.mulAdd = function mulAdd(k1, p, k2) {\n  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false);\n};\n\nPoint.prototype.jmulAdd = function jmulAdd(k1, p, k2) {\n  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true);\n};\n\nPoint.prototype.normalize = function normalize() {\n  if (this.zOne)\n    return this;\n\n  // Normalize coordinates\n  var zi = this.z.redInvm();\n  this.x = this.x.redMul(zi);\n  this.y = this.y.redMul(zi);\n  if (this.t)\n    this.t = this.t.redMul(zi);\n  this.z = this.curve.one;\n  this.zOne = true;\n  return this;\n};\n\nPoint.prototype.neg = function neg() {\n  return this.curve.point(this.x.redNeg(),\n                          this.y,\n                          this.z,\n                          this.t && this.t.redNeg());\n};\n\nPoint.prototype.getX = function getX() {\n  this.normalize();\n  return this.x.fromRed();\n};\n\nPoint.prototype.getY = function getY() {\n  this.normalize();\n  return this.y.fromRed();\n};\n\nPoint.prototype.eq = function eq(other) {\n  return this === other ||\n         this.getX().cmp(other.getX()) === 0 &&\n         this.getY().cmp(other.getY()) === 0;\n};\n\nPoint.prototype.eqXToP = function eqXToP(x) {\n  var rx = x.toRed(this.curve.red).redMul(this.z);\n  if (this.x.cmp(rx) === 0)\n    return true;\n\n  var xc = x.clone();\n  var t = this.curve.redN.redMul(this.z);\n  for (;;) {\n    xc.iadd(this.curve.n);\n    if (xc.cmp(this.curve.p) >= 0)\n      return false;\n\n    rx.redIAdd(t);\n    if (this.x.cmp(rx) === 0)\n      return true;\n  }\n};\n\n// Compatibility with BaseCurve\nPoint.prototype.toP = Point.prototype.normalize;\nPoint.prototype.mixedAdd = Point.prototype.add;\n","'use strict';\n\nvar curve = exports;\n\ncurve.base = require('./base');\ncurve.short = require('./short');\ncurve.mont = require('./mont');\ncurve.edwards = require('./edwards');\n","'use strict';\n\nvar BN = require('bn.js');\nvar inherits = require('inherits');\nvar Base = require('./base');\n\nvar utils = require('../utils');\n\nfunction MontCurve(conf) {\n  Base.call(this, 'mont', conf);\n\n  this.a = new BN(conf.a, 16).toRed(this.red);\n  this.b = new BN(conf.b, 16).toRed(this.red);\n  this.i4 = new BN(4).toRed(this.red).redInvm();\n  this.two = new BN(2).toRed(this.red);\n  this.a24 = this.i4.redMul(this.a.redAdd(this.two));\n}\ninherits(MontCurve, Base);\nmodule.exports = MontCurve;\n\nMontCurve.prototype.validate = function validate(point) {\n  var x = point.normalize().x;\n  var x2 = x.redSqr();\n  var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);\n  var y = rhs.redSqrt();\n\n  return y.redSqr().cmp(rhs) === 0;\n};\n\nfunction Point(curve, x, z) {\n  Base.BasePoint.call(this, curve, 'projective');\n  if (x === null && z === null) {\n    this.x = this.curve.one;\n    this.z = this.curve.zero;\n  } else {\n    this.x = new BN(x, 16);\n    this.z = new BN(z, 16);\n    if (!this.x.red)\n      this.x = this.x.toRed(this.curve.red);\n    if (!this.z.red)\n      this.z = this.z.toRed(this.curve.red);\n  }\n}\ninherits(Point, Base.BasePoint);\n\nMontCurve.prototype.decodePoint = function decodePoint(bytes, enc) {\n  return this.point(utils.toArray(bytes, enc), 1);\n};\n\nMontCurve.prototype.point = function point(x, z) {\n  return new Point(this, x, z);\n};\n\nMontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {\n  return Point.fromJSON(this, obj);\n};\n\nPoint.prototype.precompute = function precompute() {\n  // No-op\n};\n\nPoint.prototype._encode = function _encode() {\n  return this.getX().toArray('be', this.curve.p.byteLength());\n};\n\nPoint.fromJSON = function fromJSON(curve, obj) {\n  return new Point(curve, obj[0], obj[1] || curve.one);\n};\n\nPoint.prototype.inspect = function inspect() {\n  if (this.isInfinity())\n    return '<EC Point Infinity>';\n  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +\n      ' z: ' + this.z.fromRed().toString(16, 2) + '>';\n};\n\nPoint.prototype.isInfinity = function isInfinity() {\n  // XXX This code assumes that zero is always zero in red\n  return this.z.cmpn(0) === 0;\n};\n\nPoint.prototype.dbl = function dbl() {\n  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3\n  // 2M + 2S + 4A\n\n  // A = X1 + Z1\n  var a = this.x.redAdd(this.z);\n  // AA = A^2\n  var aa = a.redSqr();\n  // B = X1 - Z1\n  var b = this.x.redSub(this.z);\n  // BB = B^2\n  var bb = b.redSqr();\n  // C = AA - BB\n  var c = aa.redSub(bb);\n  // X3 = AA * BB\n  var nx = aa.redMul(bb);\n  // Z3 = C * (BB + A24 * C)\n  var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));\n  return this.curve.point(nx, nz);\n};\n\nPoint.prototype.add = function add() {\n  throw new Error('Not supported on Montgomery curve');\n};\n\nPoint.prototype.diffAdd = function diffAdd(p, diff) {\n  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3\n  // 4M + 2S + 6A\n\n  // A = X2 + Z2\n  var a = this.x.redAdd(this.z);\n  // B = X2 - Z2\n  var b = this.x.redSub(this.z);\n  // C = X3 + Z3\n  var c = p.x.redAdd(p.z);\n  // D = X3 - Z3\n  var d = p.x.redSub(p.z);\n  // DA = D * A\n  var da = d.redMul(a);\n  // CB = C * B\n  var cb = c.redMul(b);\n  // X5 = Z1 * (DA + CB)^2\n  var nx = diff.z.redMul(da.redAdd(cb).redSqr());\n  // Z5 = X1 * (DA - CB)^2\n  var nz = diff.x.redMul(da.redISub(cb).redSqr());\n  return this.curve.point(nx, nz);\n};\n\nPoint.prototype.mul = function mul(k) {\n  var t = k.clone();\n  var a = this; // (N / 2) * Q + Q\n  var b = this.curve.point(null, null); // (N / 2) * Q\n  var c = this; // Q\n\n  for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1))\n    bits.push(t.andln(1));\n\n  for (var i = bits.length - 1; i >= 0; i--) {\n    if (bits[i] === 0) {\n      // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q\n      a = a.diffAdd(b, c);\n      // N * Q = 2 * ((N / 2) * Q + Q))\n      b = b.dbl();\n    } else {\n      // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)\n      b = a.diffAdd(b, c);\n      // N * Q + Q = 2 * ((N / 2) * Q + Q)\n      a = a.dbl();\n    }\n  }\n  return b;\n};\n\nPoint.prototype.mulAdd = function mulAdd() {\n  throw new Error('Not supported on Montgomery curve');\n};\n\nPoint.prototype.jumlAdd = function jumlAdd() {\n  throw new Error('Not supported on Montgomery curve');\n};\n\nPoint.prototype.eq = function eq(other) {\n  return this.getX().cmp(other.getX()) === 0;\n};\n\nPoint.prototype.normalize = function normalize() {\n  this.x = this.x.redMul(this.z.redInvm());\n  this.z = this.curve.one;\n  return this;\n};\n\nPoint.prototype.getX = function getX() {\n  // Normalize coordinates\n  this.normalize();\n\n  return this.x.fromRed();\n};\n","'use strict';\n\nvar utils = require('../utils');\nvar BN = require('bn.js');\nvar inherits = require('inherits');\nvar Base = require('./base');\n\nvar assert = utils.assert;\n\nfunction ShortCurve(conf) {\n  Base.call(this, 'short', conf);\n\n  this.a = new BN(conf.a, 16).toRed(this.red);\n  this.b = new BN(conf.b, 16).toRed(this.red);\n  this.tinv = this.two.redInvm();\n\n  this.zeroA = this.a.fromRed().cmpn(0) === 0;\n  this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;\n\n  // If the curve is endomorphic, precalculate beta and lambda\n  this.endo = this._getEndomorphism(conf);\n  this._endoWnafT1 = new Array(4);\n  this._endoWnafT2 = new Array(4);\n}\ninherits(ShortCurve, Base);\nmodule.exports = ShortCurve;\n\nShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {\n  // No efficient endomorphism\n  if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)\n    return;\n\n  // Compute beta and lambda, that lambda * P = (beta * Px; Py)\n  var beta;\n  var lambda;\n  if (conf.beta) {\n    beta = new BN(conf.beta, 16).toRed(this.red);\n  } else {\n    var betas = this._getEndoRoots(this.p);\n    // Choose the smallest beta\n    beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];\n    beta = beta.toRed(this.red);\n  }\n  if (conf.lambda) {\n    lambda = new BN(conf.lambda, 16);\n  } else {\n    // Choose the lambda that is matching selected beta\n    var lambdas = this._getEndoRoots(this.n);\n    if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {\n      lambda = lambdas[0];\n    } else {\n      lambda = lambdas[1];\n      assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);\n    }\n  }\n\n  // Get basis vectors, used for balanced length-two representation\n  var basis;\n  if (conf.basis) {\n    basis = conf.basis.map(function(vec) {\n      return {\n        a: new BN(vec.a, 16),\n        b: new BN(vec.b, 16)\n      };\n    });\n  } else {\n    basis = this._getEndoBasis(lambda);\n  }\n\n  return {\n    beta: beta,\n    lambda: lambda,\n    basis: basis\n  };\n};\n\nShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {\n  // Find roots of for x^2 + x + 1 in F\n  // Root = (-1 +- Sqrt(-3)) / 2\n  //\n  var red = num === this.p ? this.red : BN.mont(num);\n  var tinv = new BN(2).toRed(red).redInvm();\n  var ntinv = tinv.redNeg();\n\n  var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv);\n\n  var l1 = ntinv.redAdd(s).fromRed();\n  var l2 = ntinv.redSub(s).fromRed();\n  return [ l1, l2 ];\n};\n\nShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {\n  // aprxSqrt >= sqrt(this.n)\n  var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2));\n\n  // 3.74\n  // Run EGCD, until r(L + 1) < aprxSqrt\n  var u = lambda;\n  var v = this.n.clone();\n  var x1 = new BN(1);\n  var y1 = new BN(0);\n  var x2 = new BN(0);\n  var y2 = new BN(1);\n\n  // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)\n  var a0;\n  var b0;\n  // First vector\n  var a1;\n  var b1;\n  // Second vector\n  var a2;\n  var b2;\n\n  var prevR;\n  var i = 0;\n  var r;\n  var x;\n  while (u.cmpn(0) !== 0) {\n    var q = v.div(u);\n    r = v.sub(q.mul(u));\n    x = x2.sub(q.mul(x1));\n    var y = y2.sub(q.mul(y1));\n\n    if (!a1 && r.cmp(aprxSqrt) < 0) {\n      a0 = prevR.neg();\n      b0 = x1;\n      a1 = r.neg();\n      b1 = x;\n    } else if (a1 && ++i === 2) {\n      break;\n    }\n    prevR = r;\n\n    v = u;\n    u = r;\n    x2 = x1;\n    x1 = x;\n    y2 = y1;\n    y1 = y;\n  }\n  a2 = r.neg();\n  b2 = x;\n\n  var len1 = a1.sqr().add(b1.sqr());\n  var len2 = a2.sqr().add(b2.sqr());\n  if (len2.cmp(len1) >= 0) {\n    a2 = a0;\n    b2 = b0;\n  }\n\n  // Normalize signs\n  if (a1.negative) {\n    a1 = a1.neg();\n    b1 = b1.neg();\n  }\n  if (a2.negative) {\n    a2 = a2.neg();\n    b2 = b2.neg();\n  }\n\n  return [\n    { a: a1, b: b1 },\n    { a: a2, b: b2 }\n  ];\n};\n\nShortCurve.prototype._endoSplit = function _endoSplit(k) {\n  var basis = this.endo.basis;\n  var v1 = basis[0];\n  var v2 = basis[1];\n\n  var c1 = v2.b.mul(k).divRound(this.n);\n  var c2 = v1.b.neg().mul(k).divRound(this.n);\n\n  var p1 = c1.mul(v1.a);\n  var p2 = c2.mul(v2.a);\n  var q1 = c1.mul(v1.b);\n  var q2 = c2.mul(v2.b);\n\n  // Calculate answer\n  var k1 = k.sub(p1).sub(p2);\n  var k2 = q1.add(q2).neg();\n  return { k1: k1, k2: k2 };\n};\n\nShortCurve.prototype.pointFromX = function pointFromX(x, odd) {\n  x = new BN(x, 16);\n  if (!x.red)\n    x = x.toRed(this.red);\n\n  var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);\n  var y = y2.redSqrt();\n  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)\n    throw new Error('invalid point');\n\n  // XXX Is there any way to tell if the number is odd without converting it\n  // to non-red form?\n  var isOdd = y.fromRed().isOdd();\n  if (odd && !isOdd || !odd && isOdd)\n    y = y.redNeg();\n\n  return this.point(x, y);\n};\n\nShortCurve.prototype.validate = function validate(point) {\n  if (point.inf)\n    return true;\n\n  var x = point.x;\n  var y = point.y;\n\n  var ax = this.a.redMul(x);\n  var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);\n  return y.redSqr().redISub(rhs).cmpn(0) === 0;\n};\n\nShortCurve.prototype._endoWnafMulAdd =\n    function _endoWnafMulAdd(points, coeffs, jacobianResult) {\n  var npoints = this._endoWnafT1;\n  var ncoeffs = this._endoWnafT2;\n  for (var i = 0; i < points.length; i++) {\n    var split = this._endoSplit(coeffs[i]);\n    var p = points[i];\n    var beta = p._getBeta();\n\n    if (split.k1.negative) {\n      split.k1.ineg();\n      p = p.neg(true);\n    }\n    if (split.k2.negative) {\n      split.k2.ineg();\n      beta = beta.neg(true);\n    }\n\n    npoints[i * 2] = p;\n    npoints[i * 2 + 1] = beta;\n    ncoeffs[i * 2] = split.k1;\n    ncoeffs[i * 2 + 1] = split.k2;\n  }\n  var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult);\n\n  // Clean-up references to points and coefficients\n  for (var j = 0; j < i * 2; j++) {\n    npoints[j] = null;\n    ncoeffs[j] = null;\n  }\n  return res;\n};\n\nfunction Point(curve, x, y, isRed) {\n  Base.BasePoint.call(this, curve, 'affine');\n  if (x === null && y === null) {\n    this.x = null;\n    this.y = null;\n    this.inf = true;\n  } else {\n    this.x = new BN(x, 16);\n    this.y = new BN(y, 16);\n    // Force redgomery representation when loading from JSON\n    if (isRed) {\n      this.x.forceRed(this.curve.red);\n      this.y.forceRed(this.curve.red);\n    }\n    if (!this.x.red)\n      this.x = this.x.toRed(this.curve.red);\n    if (!this.y.red)\n      this.y = this.y.toRed(this.curve.red);\n    this.inf = false;\n  }\n}\ninherits(Point, Base.BasePoint);\n\nShortCurve.prototype.point = function point(x, y, isRed) {\n  return new Point(this, x, y, isRed);\n};\n\nShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {\n  return Point.fromJSON(this, obj, red);\n};\n\nPoint.prototype._getBeta = function _getBeta() {\n  if (!this.curve.endo)\n    return;\n\n  var pre = this.precomputed;\n  if (pre && pre.beta)\n    return pre.beta;\n\n  var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);\n  if (pre) {\n    var curve = this.curve;\n    var endoMul = function(p) {\n      return curve.point(p.x.redMul(curve.endo.beta), p.y);\n    };\n    pre.beta = beta;\n    beta.precomputed = {\n      beta: null,\n      naf: pre.naf && {\n        wnd: pre.naf.wnd,\n        points: pre.naf.points.map(endoMul)\n      },\n      doubles: pre.doubles && {\n        step: pre.doubles.step,\n        points: pre.doubles.points.map(endoMul)\n      }\n    };\n  }\n  return beta;\n};\n\nPoint.prototype.toJSON = function toJSON() {\n  if (!this.precomputed)\n    return [ this.x, this.y ];\n\n  return [ this.x, this.y, this.precomputed && {\n    doubles: this.precomputed.doubles && {\n      step: this.precomputed.doubles.step,\n      points: this.precomputed.doubles.points.slice(1)\n    },\n    naf: this.precomputed.naf && {\n      wnd: this.precomputed.naf.wnd,\n      points: this.precomputed.naf.points.slice(1)\n    }\n  } ];\n};\n\nPoint.fromJSON = function fromJSON(curve, obj, red) {\n  if (typeof obj === 'string')\n    obj = JSON.parse(obj);\n  var res = curve.point(obj[0], obj[1], red);\n  if (!obj[2])\n    return res;\n\n  function obj2point(obj) {\n    return curve.point(obj[0], obj[1], red);\n  }\n\n  var pre = obj[2];\n  res.precomputed = {\n    beta: null,\n    doubles: pre.doubles && {\n      step: pre.doubles.step,\n      points: [ res ].concat(pre.doubles.points.map(obj2point))\n    },\n    naf: pre.naf && {\n      wnd: pre.naf.wnd,\n      points: [ res ].concat(pre.naf.points.map(obj2point))\n    }\n  };\n  return res;\n};\n\nPoint.prototype.inspect = function inspect() {\n  if (this.isInfinity())\n    return '<EC Point Infinity>';\n  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +\n      ' y: ' + this.y.fromRed().toString(16, 2) + '>';\n};\n\nPoint.prototype.isInfinity = function isInfinity() {\n  return this.inf;\n};\n\nPoint.prototype.add = function add(p) {\n  // O + P = P\n  if (this.inf)\n    return p;\n\n  // P + O = P\n  if (p.inf)\n    return this;\n\n  // P + P = 2P\n  if (this.eq(p))\n    return this.dbl();\n\n  // P + (-P) = O\n  if (this.neg().eq(p))\n    return this.curve.point(null, null);\n\n  // P + Q = O\n  if (this.x.cmp(p.x) === 0)\n    return this.curve.point(null, null);\n\n  var c = this.y.redSub(p.y);\n  if (c.cmpn(0) !== 0)\n    c = c.redMul(this.x.redSub(p.x).redInvm());\n  var nx = c.redSqr().redISub(this.x).redISub(p.x);\n  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);\n  return this.curve.point(nx, ny);\n};\n\nPoint.prototype.dbl = function dbl() {\n  if (this.inf)\n    return this;\n\n  // 2P = O\n  var ys1 = this.y.redAdd(this.y);\n  if (ys1.cmpn(0) === 0)\n    return this.curve.point(null, null);\n\n  var a = this.curve.a;\n\n  var x2 = this.x.redSqr();\n  var dyinv = ys1.redInvm();\n  var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);\n\n  var nx = c.redSqr().redISub(this.x.redAdd(this.x));\n  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);\n  return this.curve.point(nx, ny);\n};\n\nPoint.prototype.getX = function getX() {\n  return this.x.fromRed();\n};\n\nPoint.prototype.getY = function getY() {\n  return this.y.fromRed();\n};\n\nPoint.prototype.mul = function mul(k) {\n  k = new BN(k, 16);\n  if (this.isInfinity())\n    return this;\n  else if (this._hasDoubles(k))\n    return this.curve._fixedNafMul(this, k);\n  else if (this.curve.endo)\n    return this.curve._endoWnafMulAdd([ this ], [ k ]);\n  else\n    return this.curve._wnafMul(this, k);\n};\n\nPoint.prototype.mulAdd = function mulAdd(k1, p2, k2) {\n  var points = [ this, p2 ];\n  var coeffs = [ k1, k2 ];\n  if (this.curve.endo)\n    return this.curve._endoWnafMulAdd(points, coeffs);\n  else\n    return this.curve._wnafMulAdd(1, points, coeffs, 2);\n};\n\nPoint.prototype.jmulAdd = function jmulAdd(k1, p2, k2) {\n  var points = [ this, p2 ];\n  var coeffs = [ k1, k2 ];\n  if (this.curve.endo)\n    return this.curve._endoWnafMulAdd(points, coeffs, true);\n  else\n    return this.curve._wnafMulAdd(1, points, coeffs, 2, true);\n};\n\nPoint.prototype.eq = function eq(p) {\n  return this === p ||\n         this.inf === p.inf &&\n             (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);\n};\n\nPoint.prototype.neg = function neg(_precompute) {\n  if (this.inf)\n    return this;\n\n  var res = this.curve.point(this.x, this.y.redNeg());\n  if (_precompute && this.precomputed) {\n    var pre = this.precomputed;\n    var negate = function(p) {\n      return p.neg();\n    };\n    res.precomputed = {\n      naf: pre.naf && {\n        wnd: pre.naf.wnd,\n        points: pre.naf.points.map(negate)\n      },\n      doubles: pre.doubles && {\n        step: pre.doubles.step,\n        points: pre.doubles.points.map(negate)\n      }\n    };\n  }\n  return res;\n};\n\nPoint.prototype.toJ = function toJ() {\n  if (this.inf)\n    return this.curve.jpoint(null, null, null);\n\n  var res = this.curve.jpoint(this.x, this.y, this.curve.one);\n  return res;\n};\n\nfunction JPoint(curve, x, y, z) {\n  Base.BasePoint.call(this, curve, 'jacobian');\n  if (x === null && y === null && z === null) {\n    this.x = this.curve.one;\n    this.y = this.curve.one;\n    this.z = new BN(0);\n  } else {\n    this.x = new BN(x, 16);\n    this.y = new BN(y, 16);\n    this.z = new BN(z, 16);\n  }\n  if (!this.x.red)\n    this.x = this.x.toRed(this.curve.red);\n  if (!this.y.red)\n    this.y = this.y.toRed(this.curve.red);\n  if (!this.z.red)\n    this.z = this.z.toRed(this.curve.red);\n\n  this.zOne = this.z === this.curve.one;\n}\ninherits(JPoint, Base.BasePoint);\n\nShortCurve.prototype.jpoint = function jpoint(x, y, z) {\n  return new JPoint(this, x, y, z);\n};\n\nJPoint.prototype.toP = function toP() {\n  if (this.isInfinity())\n    return this.curve.point(null, null);\n\n  var zinv = this.z.redInvm();\n  var zinv2 = zinv.redSqr();\n  var ax = this.x.redMul(zinv2);\n  var ay = this.y.redMul(zinv2).redMul(zinv);\n\n  return this.curve.point(ax, ay);\n};\n\nJPoint.prototype.neg = function neg() {\n  return this.curve.jpoint(this.x, this.y.redNeg(), this.z);\n};\n\nJPoint.prototype.add = function add(p) {\n  // O + P = P\n  if (this.isInfinity())\n    return p;\n\n  // P + O = P\n  if (p.isInfinity())\n    return this;\n\n  // 12M + 4S + 7A\n  var pz2 = p.z.redSqr();\n  var z2 = this.z.redSqr();\n  var u1 = this.x.redMul(pz2);\n  var u2 = p.x.redMul(z2);\n  var s1 = this.y.redMul(pz2.redMul(p.z));\n  var s2 = p.y.redMul(z2.redMul(this.z));\n\n  var h = u1.redSub(u2);\n  var r = s1.redSub(s2);\n  if (h.cmpn(0) === 0) {\n    if (r.cmpn(0) !== 0)\n      return this.curve.jpoint(null, null, null);\n    else\n      return this.dbl();\n  }\n\n  var h2 = h.redSqr();\n  var h3 = h2.redMul(h);\n  var v = u1.redMul(h2);\n\n  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);\n  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));\n  var nz = this.z.redMul(p.z).redMul(h);\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype.mixedAdd = function mixedAdd(p) {\n  // O + P = P\n  if (this.isInfinity())\n    return p.toJ();\n\n  // P + O = P\n  if (p.isInfinity())\n    return this;\n\n  // 8M + 3S + 7A\n  var z2 = this.z.redSqr();\n  var u1 = this.x;\n  var u2 = p.x.redMul(z2);\n  var s1 = this.y;\n  var s2 = p.y.redMul(z2).redMul(this.z);\n\n  var h = u1.redSub(u2);\n  var r = s1.redSub(s2);\n  if (h.cmpn(0) === 0) {\n    if (r.cmpn(0) !== 0)\n      return this.curve.jpoint(null, null, null);\n    else\n      return this.dbl();\n  }\n\n  var h2 = h.redSqr();\n  var h3 = h2.redMul(h);\n  var v = u1.redMul(h2);\n\n  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);\n  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));\n  var nz = this.z.redMul(h);\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype.dblp = function dblp(pow) {\n  if (pow === 0)\n    return this;\n  if (this.isInfinity())\n    return this;\n  if (!pow)\n    return this.dbl();\n\n  if (this.curve.zeroA || this.curve.threeA) {\n    var r = this;\n    for (var i = 0; i < pow; i++)\n      r = r.dbl();\n    return r;\n  }\n\n  // 1M + 2S + 1A + N * (4S + 5M + 8A)\n  // N = 1 => 6M + 6S + 9A\n  var a = this.curve.a;\n  var tinv = this.curve.tinv;\n\n  var jx = this.x;\n  var jy = this.y;\n  var jz = this.z;\n  var jz4 = jz.redSqr().redSqr();\n\n  // Reuse results\n  var jyd = jy.redAdd(jy);\n  for (var i = 0; i < pow; i++) {\n    var jx2 = jx.redSqr();\n    var jyd2 = jyd.redSqr();\n    var jyd4 = jyd2.redSqr();\n    var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));\n\n    var t1 = jx.redMul(jyd2);\n    var nx = c.redSqr().redISub(t1.redAdd(t1));\n    var t2 = t1.redISub(nx);\n    var dny = c.redMul(t2);\n    dny = dny.redIAdd(dny).redISub(jyd4);\n    var nz = jyd.redMul(jz);\n    if (i + 1 < pow)\n      jz4 = jz4.redMul(jyd4);\n\n    jx = nx;\n    jz = nz;\n    jyd = dny;\n  }\n\n  return this.curve.jpoint(jx, jyd.redMul(tinv), jz);\n};\n\nJPoint.prototype.dbl = function dbl() {\n  if (this.isInfinity())\n    return this;\n\n  if (this.curve.zeroA)\n    return this._zeroDbl();\n  else if (this.curve.threeA)\n    return this._threeDbl();\n  else\n    return this._dbl();\n};\n\nJPoint.prototype._zeroDbl = function _zeroDbl() {\n  var nx;\n  var ny;\n  var nz;\n  // Z = 1\n  if (this.zOne) {\n    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html\n    //     #doubling-mdbl-2007-bl\n    // 1M + 5S + 14A\n\n    // XX = X1^2\n    var xx = this.x.redSqr();\n    // YY = Y1^2\n    var yy = this.y.redSqr();\n    // YYYY = YY^2\n    var yyyy = yy.redSqr();\n    // S = 2 * ((X1 + YY)^2 - XX - YYYY)\n    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);\n    s = s.redIAdd(s);\n    // M = 3 * XX + a; a = 0\n    var m = xx.redAdd(xx).redIAdd(xx);\n    // T = M ^ 2 - 2*S\n    var t = m.redSqr().redISub(s).redISub(s);\n\n    // 8 * YYYY\n    var yyyy8 = yyyy.redIAdd(yyyy);\n    yyyy8 = yyyy8.redIAdd(yyyy8);\n    yyyy8 = yyyy8.redIAdd(yyyy8);\n\n    // X3 = T\n    nx = t;\n    // Y3 = M * (S - T) - 8 * YYYY\n    ny = m.redMul(s.redISub(t)).redISub(yyyy8);\n    // Z3 = 2*Y1\n    nz = this.y.redAdd(this.y);\n  } else {\n    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html\n    //     #doubling-dbl-2009-l\n    // 2M + 5S + 13A\n\n    // A = X1^2\n    var a = this.x.redSqr();\n    // B = Y1^2\n    var b = this.y.redSqr();\n    // C = B^2\n    var c = b.redSqr();\n    // D = 2 * ((X1 + B)^2 - A - C)\n    var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);\n    d = d.redIAdd(d);\n    // E = 3 * A\n    var e = a.redAdd(a).redIAdd(a);\n    // F = E^2\n    var f = e.redSqr();\n\n    // 8 * C\n    var c8 = c.redIAdd(c);\n    c8 = c8.redIAdd(c8);\n    c8 = c8.redIAdd(c8);\n\n    // X3 = F - 2 * D\n    nx = f.redISub(d).redISub(d);\n    // Y3 = E * (D - X3) - 8 * C\n    ny = e.redMul(d.redISub(nx)).redISub(c8);\n    // Z3 = 2 * Y1 * Z1\n    nz = this.y.redMul(this.z);\n    nz = nz.redIAdd(nz);\n  }\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype._threeDbl = function _threeDbl() {\n  var nx;\n  var ny;\n  var nz;\n  // Z = 1\n  if (this.zOne) {\n    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html\n    //     #doubling-mdbl-2007-bl\n    // 1M + 5S + 15A\n\n    // XX = X1^2\n    var xx = this.x.redSqr();\n    // YY = Y1^2\n    var yy = this.y.redSqr();\n    // YYYY = YY^2\n    var yyyy = yy.redSqr();\n    // S = 2 * ((X1 + YY)^2 - XX - YYYY)\n    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);\n    s = s.redIAdd(s);\n    // M = 3 * XX + a\n    var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);\n    // T = M^2 - 2 * S\n    var t = m.redSqr().redISub(s).redISub(s);\n    // X3 = T\n    nx = t;\n    // Y3 = M * (S - T) - 8 * YYYY\n    var yyyy8 = yyyy.redIAdd(yyyy);\n    yyyy8 = yyyy8.redIAdd(yyyy8);\n    yyyy8 = yyyy8.redIAdd(yyyy8);\n    ny = m.redMul(s.redISub(t)).redISub(yyyy8);\n    // Z3 = 2 * Y1\n    nz = this.y.redAdd(this.y);\n  } else {\n    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b\n    // 3M + 5S\n\n    // delta = Z1^2\n    var delta = this.z.redSqr();\n    // gamma = Y1^2\n    var gamma = this.y.redSqr();\n    // beta = X1 * gamma\n    var beta = this.x.redMul(gamma);\n    // alpha = 3 * (X1 - delta) * (X1 + delta)\n    var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));\n    alpha = alpha.redAdd(alpha).redIAdd(alpha);\n    // X3 = alpha^2 - 8 * beta\n    var beta4 = beta.redIAdd(beta);\n    beta4 = beta4.redIAdd(beta4);\n    var beta8 = beta4.redAdd(beta4);\n    nx = alpha.redSqr().redISub(beta8);\n    // Z3 = (Y1 + Z1)^2 - gamma - delta\n    nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);\n    // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2\n    var ggamma8 = gamma.redSqr();\n    ggamma8 = ggamma8.redIAdd(ggamma8);\n    ggamma8 = ggamma8.redIAdd(ggamma8);\n    ggamma8 = ggamma8.redIAdd(ggamma8);\n    ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);\n  }\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype._dbl = function _dbl() {\n  var a = this.curve.a;\n\n  // 4M + 6S + 10A\n  var jx = this.x;\n  var jy = this.y;\n  var jz = this.z;\n  var jz4 = jz.redSqr().redSqr();\n\n  var jx2 = jx.redSqr();\n  var jy2 = jy.redSqr();\n\n  var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));\n\n  var jxd4 = jx.redAdd(jx);\n  jxd4 = jxd4.redIAdd(jxd4);\n  var t1 = jxd4.redMul(jy2);\n  var nx = c.redSqr().redISub(t1.redAdd(t1));\n  var t2 = t1.redISub(nx);\n\n  var jyd8 = jy2.redSqr();\n  jyd8 = jyd8.redIAdd(jyd8);\n  jyd8 = jyd8.redIAdd(jyd8);\n  jyd8 = jyd8.redIAdd(jyd8);\n  var ny = c.redMul(t2).redISub(jyd8);\n  var nz = jy.redAdd(jy).redMul(jz);\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype.trpl = function trpl() {\n  if (!this.curve.zeroA)\n    return this.dbl().add(this);\n\n  // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl\n  // 5M + 10S + ...\n\n  // XX = X1^2\n  var xx = this.x.redSqr();\n  // YY = Y1^2\n  var yy = this.y.redSqr();\n  // ZZ = Z1^2\n  var zz = this.z.redSqr();\n  // YYYY = YY^2\n  var yyyy = yy.redSqr();\n  // M = 3 * XX + a * ZZ2; a = 0\n  var m = xx.redAdd(xx).redIAdd(xx);\n  // MM = M^2\n  var mm = m.redSqr();\n  // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM\n  var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);\n  e = e.redIAdd(e);\n  e = e.redAdd(e).redIAdd(e);\n  e = e.redISub(mm);\n  // EE = E^2\n  var ee = e.redSqr();\n  // T = 16*YYYY\n  var t = yyyy.redIAdd(yyyy);\n  t = t.redIAdd(t);\n  t = t.redIAdd(t);\n  t = t.redIAdd(t);\n  // U = (M + E)^2 - MM - EE - T\n  var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);\n  // X3 = 4 * (X1 * EE - 4 * YY * U)\n  var yyu4 = yy.redMul(u);\n  yyu4 = yyu4.redIAdd(yyu4);\n  yyu4 = yyu4.redIAdd(yyu4);\n  var nx = this.x.redMul(ee).redISub(yyu4);\n  nx = nx.redIAdd(nx);\n  nx = nx.redIAdd(nx);\n  // Y3 = 8 * Y1 * (U * (T - U) - E * EE)\n  var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));\n  ny = ny.redIAdd(ny);\n  ny = ny.redIAdd(ny);\n  ny = ny.redIAdd(ny);\n  // Z3 = (Z1 + E)^2 - ZZ - EE\n  var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);\n\n  return this.curve.jpoint(nx, ny, nz);\n};\n\nJPoint.prototype.mul = function mul(k, kbase) {\n  k = new BN(k, kbase);\n\n  return this.curve._wnafMul(this, k);\n};\n\nJPoint.prototype.eq = function eq(p) {\n  if (p.type === 'affine')\n    return this.eq(p.toJ());\n\n  if (this === p)\n    return true;\n\n  // x1 * z2^2 == x2 * z1^2\n  var z2 = this.z.redSqr();\n  var pz2 = p.z.redSqr();\n  if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)\n    return false;\n\n  // y1 * z2^3 == y2 * z1^3\n  var z3 = z2.redMul(this.z);\n  var pz3 = pz2.redMul(p.z);\n  return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;\n};\n\nJPoint.prototype.eqXToP = function eqXToP(x) {\n  var zs = this.z.redSqr();\n  var rx = x.toRed(this.curve.red).redMul(zs);\n  if (this.x.cmp(rx) === 0)\n    return true;\n\n  var xc = x.clone();\n  var t = this.curve.redN.redMul(zs);\n  for (;;) {\n    xc.iadd(this.curve.n);\n    if (xc.cmp(this.curve.p) >= 0)\n      return false;\n\n    rx.redIAdd(t);\n    if (this.x.cmp(rx) === 0)\n      return true;\n  }\n};\n\nJPoint.prototype.inspect = function inspect() {\n  if (this.isInfinity())\n    return '<EC JPoint Infinity>';\n  return '<EC JPoint x: ' + this.x.toString(16, 2) +\n      ' y: ' + this.y.toString(16, 2) +\n      ' z: ' + this.z.toString(16, 2) + '>';\n};\n\nJPoint.prototype.isInfinity = function isInfinity() {\n  // XXX This code assumes that zero is always zero in red\n  return this.z.cmpn(0) === 0;\n};\n","'use strict';\n\nvar curves = exports;\n\nvar hash = require('hash.js');\nvar curve = require('./curve');\nvar utils = require('./utils');\n\nvar assert = utils.assert;\n\nfunction PresetCurve(options) {\n  if (options.type === 'short')\n    this.curve = new curve.short(options);\n  else if (options.type === 'edwards')\n    this.curve = new curve.edwards(options);\n  else\n    this.curve = new curve.mont(options);\n  this.g = this.curve.g;\n  this.n = this.curve.n;\n  this.hash = options.hash;\n\n  assert(this.g.validate(), 'Invalid curve');\n  assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');\n}\ncurves.PresetCurve = PresetCurve;\n\nfunction defineCurve(name, options) {\n  Object.defineProperty(curves, name, {\n    configurable: true,\n    enumerable: true,\n    get: function() {\n      var curve = new PresetCurve(options);\n      Object.defineProperty(curves, name, {\n        configurable: true,\n        enumerable: true,\n        value: curve\n      });\n      return curve;\n    }\n  });\n}\n\ndefineCurve('p192', {\n  type: 'short',\n  prime: 'p192',\n  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',\n  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',\n  b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',\n  n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',\n  hash: hash.sha256,\n  gRed: false,\n  g: [\n    '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',\n    '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'\n  ]\n});\n\ndefineCurve('p224', {\n  type: 'short',\n  prime: 'p224',\n  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',\n  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',\n  b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',\n  n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',\n  hash: hash.sha256,\n  gRed: false,\n  g: [\n    'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',\n    'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'\n  ]\n});\n\ndefineCurve('p256', {\n  type: 'short',\n  prime: null,\n  p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',\n  a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',\n  b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',\n  n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',\n  hash: hash.sha256,\n  gRed: false,\n  g: [\n    '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',\n    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'\n  ]\n});\n\ndefineCurve('p384', {\n  type: 'short',\n  prime: null,\n  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'fffffffe ffffffff 00000000 00000000 ffffffff',\n  a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'fffffffe ffffffff 00000000 00000000 fffffffc',\n  b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' +\n     '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef',\n  n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' +\n     'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973',\n  hash: hash.sha384,\n  gRed: false,\n  g: [\n    'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' +\n    '5502f25d bf55296c 3a545e38 72760ab7',\n    '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' +\n    '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f'\n  ]\n});\n\ndefineCurve('p521', {\n  type: 'short',\n  prime: null,\n  p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'ffffffff ffffffff ffffffff ffffffff ffffffff',\n  a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'ffffffff ffffffff ffffffff ffffffff fffffffc',\n  b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' +\n     '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' +\n     '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00',\n  n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +\n     'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' +\n     'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409',\n  hash: hash.sha512,\n  gRed: false,\n  g: [\n    '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' +\n    '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' +\n    'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66',\n    '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' +\n    '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' +\n    '3fad0761 353c7086 a272c240 88be9476 9fd16650'\n  ]\n});\n\ndefineCurve('curve25519', {\n  type: 'mont',\n  prime: 'p25519',\n  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',\n  a: '76d06',\n  b: '1',\n  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',\n  hash: hash.sha256,\n  gRed: false,\n  g: [\n    '9'\n  ]\n});\n\ndefineCurve('ed25519', {\n  type: 'edwards',\n  prime: 'p25519',\n  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',\n  a: '-1',\n  c: '1',\n  // -121665 * (121666^(-1)) (mod P)\n  d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',\n  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',\n  hash: hash.sha256,\n  gRed: false,\n  g: [\n    '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',\n\n    // 4/5\n    '6666666666666666666666666666666666666666666666666666666666666658'\n  ]\n});\n\nvar pre;\ntry {\n  pre = require('./precomputed/secp256k1');\n} catch (e) {\n  pre = undefined;\n}\n\ndefineCurve('secp256k1', {\n  type: 'short',\n  prime: 'k256',\n  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',\n  a: '0',\n  b: '7',\n  n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',\n  h: '1',\n  hash: hash.sha256,\n\n  // Precomputed endomorphism\n  beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',\n  lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',\n  basis: [\n    {\n      a: '3086d221a7d46bcde86c90e49284eb15',\n      b: '-e4437ed6010e88286f547fa90abfe4c3'\n    },\n    {\n      a: '114ca50f7a8e2f3f657c1108d9d44cfd8',\n      b: '3086d221a7d46bcde86c90e49284eb15'\n    }\n  ],\n\n  gRed: false,\n  g: [\n    '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',\n    '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',\n    pre\n  ]\n});\n","'use strict';\n\nvar BN = require('bn.js');\nvar HmacDRBG = require('hmac-drbg');\nvar utils = require('../utils');\nvar curves = require('../curves');\nvar rand = require('brorand');\nvar assert = utils.assert;\n\nvar KeyPair = require('./key');\nvar Signature = require('./signature');\n\nfunction EC(options) {\n  if (!(this instanceof EC))\n    return new EC(options);\n\n  // Shortcut `elliptic.ec(curve-name)`\n  if (typeof options === 'string') {\n    assert(curves.hasOwnProperty(options), 'Unknown curve ' + options);\n\n    options = curves[options];\n  }\n\n  // Shortcut for `elliptic.ec(elliptic.curves.curveName)`\n  if (options instanceof curves.PresetCurve)\n    options = { curve: options };\n\n  this.curve = options.curve.curve;\n  this.n = this.curve.n;\n  this.nh = this.n.ushrn(1);\n  this.g = this.curve.g;\n\n  // Point on curve\n  this.g = options.curve.g;\n  this.g.precompute(options.curve.n.bitLength() + 1);\n\n  // Hash for function for DRBG\n  this.hash = options.hash || options.curve.hash;\n}\nmodule.exports = EC;\n\nEC.prototype.keyPair = function keyPair(options) {\n  return new KeyPair(this, options);\n};\n\nEC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {\n  return KeyPair.fromPrivate(this, priv, enc);\n};\n\nEC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {\n  return KeyPair.fromPublic(this, pub, enc);\n};\n\nEC.prototype.genKeyPair = function genKeyPair(options) {\n  if (!options)\n    options = {};\n\n  // Instantiate Hmac_DRBG\n  var drbg = new HmacDRBG({\n    hash: this.hash,\n    pers: options.pers,\n    persEnc: options.persEnc || 'utf8',\n    entropy: options.entropy || rand(this.hash.hmacStrength),\n    entropyEnc: options.entropy && options.entropyEnc || 'utf8',\n    nonce: this.n.toArray()\n  });\n\n  var bytes = this.n.byteLength();\n  var ns2 = this.n.sub(new BN(2));\n  do {\n    var priv = new BN(drbg.generate(bytes));\n    if (priv.cmp(ns2) > 0)\n      continue;\n\n    priv.iaddn(1);\n    return this.keyFromPrivate(priv);\n  } while (true);\n};\n\nEC.prototype._truncateToN = function truncateToN(msg, truncOnly) {\n  var delta = msg.byteLength() * 8 - this.n.bitLength();\n  if (delta > 0)\n    msg = msg.ushrn(delta);\n  if (!truncOnly && msg.cmp(this.n) >= 0)\n    return msg.sub(this.n);\n  else\n    return msg;\n};\n\nEC.prototype.sign = function sign(msg, key, enc, options) {\n  if (typeof enc === 'object') {\n    options = enc;\n    enc = null;\n  }\n  if (!options)\n    options = {};\n\n  key = this.keyFromPrivate(key, enc);\n  msg = this._truncateToN(new BN(msg, 16));\n\n  // Zero-extend key to provide enough entropy\n  var bytes = this.n.byteLength();\n  var bkey = key.getPrivate().toArray('be', bytes);\n\n  // Zero-extend nonce to have the same byte size as N\n  var nonce = msg.toArray('be', bytes);\n\n  // Instantiate Hmac_DRBG\n  var drbg = new HmacDRBG({\n    hash: this.hash,\n    entropy: bkey,\n    nonce: nonce,\n    pers: options.pers,\n    persEnc: options.persEnc || 'utf8'\n  });\n\n  // Number of bytes to generate\n  var ns1 = this.n.sub(new BN(1));\n\n  for (var iter = 0; true; iter++) {\n    var k = options.k ?\n        options.k(iter) :\n        new BN(drbg.generate(this.n.byteLength()));\n    k = this._truncateToN(k, true);\n    if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)\n      continue;\n\n    var kp = this.g.mul(k);\n    if (kp.isInfinity())\n      continue;\n\n    var kpX = kp.getX();\n    var r = kpX.umod(this.n);\n    if (r.cmpn(0) === 0)\n      continue;\n\n    var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg));\n    s = s.umod(this.n);\n    if (s.cmpn(0) === 0)\n      continue;\n\n    var recoveryParam = (kp.getY().isOdd() ? 1 : 0) |\n                        (kpX.cmp(r) !== 0 ? 2 : 0);\n\n    // Use complement of `s`, if it is > `n / 2`\n    if (options.canonical && s.cmp(this.nh) > 0) {\n      s = this.n.sub(s);\n      recoveryParam ^= 1;\n    }\n\n    return new Signature({ r: r, s: s, recoveryParam: recoveryParam });\n  }\n};\n\nEC.prototype.verify = function verify(msg, signature, key, enc) {\n  msg = this._truncateToN(new BN(msg, 16));\n  key = this.keyFromPublic(key, enc);\n  signature = new Signature(signature, 'hex');\n\n  // Perform primitive values validation\n  var r = signature.r;\n  var s = signature.s;\n  if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)\n    return false;\n  if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)\n    return false;\n\n  // Validate signature\n  var sinv = s.invm(this.n);\n  var u1 = sinv.mul(msg).umod(this.n);\n  var u2 = sinv.mul(r).umod(this.n);\n\n  if (!this.curve._maxwellTrick) {\n    var p = this.g.mulAdd(u1, key.getPublic(), u2);\n    if (p.isInfinity())\n      return false;\n\n    return p.getX().umod(this.n).cmp(r) === 0;\n  }\n\n  // NOTE: Greg Maxwell's trick, inspired by:\n  // https://git.io/vad3K\n\n  var p = this.g.jmulAdd(u1, key.getPublic(), u2);\n  if (p.isInfinity())\n    return false;\n\n  // Compare `p.x` of Jacobian point with `r`,\n  // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the\n  // inverse of `p.z^2`\n  return p.eqXToP(r);\n};\n\nEC.prototype.recoverPubKey = function(msg, signature, j, enc) {\n  assert((3 & j) === j, 'The recovery param is more than two bits');\n  signature = new Signature(signature, enc);\n\n  var n = this.n;\n  var e = new BN(msg);\n  var r = signature.r;\n  var s = signature.s;\n\n  // A set LSB signifies that the y-coordinate is odd\n  var isYOdd = j & 1;\n  var isSecondKey = j >> 1;\n  if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey)\n    throw new Error('Unable to find sencond key candinate');\n\n  // 1.1. Let x = r + jn.\n  if (isSecondKey)\n    r = this.curve.pointFromX(r.add(this.curve.n), isYOdd);\n  else\n    r = this.curve.pointFromX(r, isYOdd);\n\n  var rInv = signature.r.invm(n);\n  var s1 = n.sub(e).mul(rInv).umod(n);\n  var s2 = s.mul(rInv).umod(n);\n\n  // 1.6.1 Compute Q = r^-1 (sR -  eG)\n  //               Q = r^-1 (sR + -eG)\n  return this.g.mulAdd(s1, r, s2);\n};\n\nEC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {\n  signature = new Signature(signature, enc);\n  if (signature.recoveryParam !== null)\n    return signature.recoveryParam;\n\n  for (var i = 0; i < 4; i++) {\n    var Qprime;\n    try {\n      Qprime = this.recoverPubKey(e, signature, i);\n    } catch (e) {\n      continue;\n    }\n\n    if (Qprime.eq(Q))\n      return i;\n  }\n  throw new Error('Unable to find valid recovery factor');\n};\n","'use strict';\n\nvar BN = require('bn.js');\nvar utils = require('../utils');\nvar assert = utils.assert;\n\nfunction KeyPair(ec, options) {\n  this.ec = ec;\n  this.priv = null;\n  this.pub = null;\n\n  // KeyPair(ec, { priv: ..., pub: ... })\n  if (options.priv)\n    this._importPrivate(options.priv, options.privEnc);\n  if (options.pub)\n    this._importPublic(options.pub, options.pubEnc);\n}\nmodule.exports = KeyPair;\n\nKeyPair.fromPublic = function fromPublic(ec, pub, enc) {\n  if (pub instanceof KeyPair)\n    return pub;\n\n  return new KeyPair(ec, {\n    pub: pub,\n    pubEnc: enc\n  });\n};\n\nKeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {\n  if (priv instanceof KeyPair)\n    return priv;\n\n  return new KeyPair(ec, {\n    priv: priv,\n    privEnc: enc\n  });\n};\n\nKeyPair.prototype.validate = function validate() {\n  var pub = this.getPublic();\n\n  if (pub.isInfinity())\n    return { result: false, reason: 'Invalid public key' };\n  if (!pub.validate())\n    return { result: false, reason: 'Public key is not a point' };\n  if (!pub.mul(this.ec.curve.n).isInfinity())\n    return { result: false, reason: 'Public key * N != O' };\n\n  return { result: true, reason: null };\n};\n\nKeyPair.prototype.getPublic = function getPublic(compact, enc) {\n  // compact is optional argument\n  if (typeof compact === 'string') {\n    enc = compact;\n    compact = null;\n  }\n\n  if (!this.pub)\n    this.pub = this.ec.g.mul(this.priv);\n\n  if (!enc)\n    return this.pub;\n\n  return this.pub.encode(enc, compact);\n};\n\nKeyPair.prototype.getPrivate = function getPrivate(enc) {\n  if (enc === 'hex')\n    return this.priv.toString(16, 2);\n  else\n    return this.priv;\n};\n\nKeyPair.prototype._importPrivate = function _importPrivate(key, enc) {\n  this.priv = new BN(key, enc || 16);\n\n  // Ensure that the priv won't be bigger than n, otherwise we may fail\n  // in fixed multiplication method\n  this.priv = this.priv.umod(this.ec.curve.n);\n};\n\nKeyPair.prototype._importPublic = function _importPublic(key, enc) {\n  if (key.x || key.y) {\n    // Montgomery points only have an `x` coordinate.\n    // Weierstrass/Edwards points on the other hand have both `x` and\n    // `y` coordinates.\n    if (this.ec.curve.type === 'mont') {\n      assert(key.x, 'Need x coordinate');\n    } else if (this.ec.curve.type === 'short' ||\n               this.ec.curve.type === 'edwards') {\n      assert(key.x && key.y, 'Need both x and y coordinate');\n    }\n    this.pub = this.ec.curve.point(key.x, key.y);\n    return;\n  }\n  this.pub = this.ec.curve.decodePoint(key, enc);\n};\n\n// ECDH\nKeyPair.prototype.derive = function derive(pub) {\n  return pub.mul(this.priv).getX();\n};\n\n// ECDSA\nKeyPair.prototype.sign = function sign(msg, enc, options) {\n  return this.ec.sign(msg, this, enc, options);\n};\n\nKeyPair.prototype.verify = function verify(msg, signature) {\n  return this.ec.verify(msg, signature, this);\n};\n\nKeyPair.prototype.inspect = function inspect() {\n  return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +\n         ' pub: ' + (this.pub && this.pub.inspect()) + ' >';\n};\n","'use strict';\n\nvar BN = require('bn.js');\n\nvar utils = require('../utils');\nvar assert = utils.assert;\n\nfunction Signature(options, enc) {\n  if (options instanceof Signature)\n    return options;\n\n  if (this._importDER(options, enc))\n    return;\n\n  assert(options.r && options.s, 'Signature without r or s');\n  this.r = new BN(options.r, 16);\n  this.s = new BN(options.s, 16);\n  if (options.recoveryParam === undefined)\n    this.recoveryParam = null;\n  else\n    this.recoveryParam = options.recoveryParam;\n}\nmodule.exports = Signature;\n\nfunction Position() {\n  this.place = 0;\n}\n\nfunction getLength(buf, p) {\n  var initial = buf[p.place++];\n  if (!(initial & 0x80)) {\n    return initial;\n  }\n  var octetLen = initial & 0xf;\n  var val = 0;\n  for (var i = 0, off = p.place; i < octetLen; i++, off++) {\n    val <<= 8;\n    val |= buf[off];\n  }\n  p.place = off;\n  return val;\n}\n\nfunction rmPadding(buf) {\n  var i = 0;\n  var len = buf.length - 1;\n  while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) {\n    i++;\n  }\n  if (i === 0) {\n    return buf;\n  }\n  return buf.slice(i);\n}\n\nSignature.prototype._importDER = function _importDER(data, enc) {\n  data = utils.toArray(data, enc);\n  var p = new Position();\n  if (data[p.place++] !== 0x30) {\n    return false;\n  }\n  var len = getLength(data, p);\n  if ((len + p.place) !== data.length) {\n    return false;\n  }\n  if (data[p.place++] !== 0x02) {\n    return false;\n  }\n  var rlen = getLength(data, p);\n  var r = data.slice(p.place, rlen + p.place);\n  p.place += rlen;\n  if (data[p.place++] !== 0x02) {\n    return false;\n  }\n  var slen = getLength(data, p);\n  if (data.length !== slen + p.place) {\n    return false;\n  }\n  var s = data.slice(p.place, slen + p.place);\n  if (r[0] === 0 && (r[1] & 0x80)) {\n    r = r.slice(1);\n  }\n  if (s[0] === 0 && (s[1] & 0x80)) {\n    s = s.slice(1);\n  }\n\n  this.r = new BN(r);\n  this.s = new BN(s);\n  this.recoveryParam = null;\n\n  return true;\n};\n\nfunction constructLength(arr, len) {\n  if (len < 0x80) {\n    arr.push(len);\n    return;\n  }\n  var octets = 1 + (Math.log(len) / Math.LN2 >>> 3);\n  arr.push(octets | 0x80);\n  while (--octets) {\n    arr.push((len >>> (octets << 3)) & 0xff);\n  }\n  arr.push(len);\n}\n\nSignature.prototype.toDER = function toDER(enc) {\n  var r = this.r.toArray();\n  var s = this.s.toArray();\n\n  // Pad values\n  if (r[0] & 0x80)\n    r = [ 0 ].concat(r);\n  // Pad values\n  if (s[0] & 0x80)\n    s = [ 0 ].concat(s);\n\n  r = rmPadding(r);\n  s = rmPadding(s);\n\n  while (!s[0] && !(s[1] & 0x80)) {\n    s = s.slice(1);\n  }\n  var arr = [ 0x02 ];\n  constructLength(arr, r.length);\n  arr = arr.concat(r);\n  arr.push(0x02);\n  constructLength(arr, s.length);\n  var backHalf = arr.concat(s);\n  var res = [ 0x30 ];\n  constructLength(res, backHalf.length);\n  res = res.concat(backHalf);\n  return utils.encode(res, enc);\n};\n","'use strict';\n\nvar hash = require('hash.js');\nvar curves = require('../curves');\nvar utils = require('../utils');\nvar assert = utils.assert;\nvar parseBytes = utils.parseBytes;\nvar KeyPair = require('./key');\nvar Signature = require('./signature');\n\nfunction EDDSA(curve) {\n  assert(curve === 'ed25519', 'only tested with ed25519 so far');\n\n  if (!(this instanceof EDDSA))\n    return new EDDSA(curve);\n\n  var curve = curves[curve].curve;\n  this.curve = curve;\n  this.g = curve.g;\n  this.g.precompute(curve.n.bitLength() + 1);\n\n  this.pointClass = curve.point().constructor;\n  this.encodingLength = Math.ceil(curve.n.bitLength() / 8);\n  this.hash = hash.sha512;\n}\n\nmodule.exports = EDDSA;\n\n/**\n* @param {Array|String} message - message bytes\n* @param {Array|String|KeyPair} secret - secret bytes or a keypair\n* @returns {Signature} - signature\n*/\nEDDSA.prototype.sign = function sign(message, secret) {\n  message = parseBytes(message);\n  var key = this.keyFromSecret(secret);\n  var r = this.hashInt(key.messagePrefix(), message);\n  var R = this.g.mul(r);\n  var Rencoded = this.encodePoint(R);\n  var s_ = this.hashInt(Rencoded, key.pubBytes(), message)\n               .mul(key.priv());\n  var S = r.add(s_).umod(this.curve.n);\n  return this.makeSignature({ R: R, S: S, Rencoded: Rencoded });\n};\n\n/**\n* @param {Array} message - message bytes\n* @param {Array|String|Signature} sig - sig bytes\n* @param {Array|String|Point|KeyPair} pub - public key\n* @returns {Boolean} - true if public key matches sig of message\n*/\nEDDSA.prototype.verify = function verify(message, sig, pub) {\n  message = parseBytes(message);\n  sig = this.makeSignature(sig);\n  var key = this.keyFromPublic(pub);\n  var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message);\n  var SG = this.g.mul(sig.S());\n  var RplusAh = sig.R().add(key.pub().mul(h));\n  return RplusAh.eq(SG);\n};\n\nEDDSA.prototype.hashInt = function hashInt() {\n  var hash = this.hash();\n  for (var i = 0; i < arguments.length; i++)\n    hash.update(arguments[i]);\n  return utils.intFromLE(hash.digest()).umod(this.curve.n);\n};\n\nEDDSA.prototype.keyFromPublic = function keyFromPublic(pub) {\n  return KeyPair.fromPublic(this, pub);\n};\n\nEDDSA.prototype.keyFromSecret = function keyFromSecret(secret) {\n  return KeyPair.fromSecret(this, secret);\n};\n\nEDDSA.prototype.makeSignature = function makeSignature(sig) {\n  if (sig instanceof Signature)\n    return sig;\n  return new Signature(this, sig);\n};\n\n/**\n* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2\n*\n* EDDSA defines methods for encoding and decoding points and integers. These are\n* helper convenience methods, that pass along to utility functions implied\n* parameters.\n*\n*/\nEDDSA.prototype.encodePoint = function encodePoint(point) {\n  var enc = point.getY().toArray('le', this.encodingLength);\n  enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0;\n  return enc;\n};\n\nEDDSA.prototype.decodePoint = function decodePoint(bytes) {\n  bytes = utils.parseBytes(bytes);\n\n  var lastIx = bytes.length - 1;\n  var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80);\n  var xIsOdd = (bytes[lastIx] & 0x80) !== 0;\n\n  var y = utils.intFromLE(normed);\n  return this.curve.pointFromY(y, xIsOdd);\n};\n\nEDDSA.prototype.encodeInt = function encodeInt(num) {\n  return num.toArray('le', this.encodingLength);\n};\n\nEDDSA.prototype.decodeInt = function decodeInt(bytes) {\n  return utils.intFromLE(bytes);\n};\n\nEDDSA.prototype.isPoint = function isPoint(val) {\n  return val instanceof this.pointClass;\n};\n","'use strict';\n\nvar utils = require('../utils');\nvar assert = utils.assert;\nvar parseBytes = utils.parseBytes;\nvar cachedProperty = utils.cachedProperty;\n\n/**\n* @param {EDDSA} eddsa - instance\n* @param {Object} params - public/private key parameters\n*\n* @param {Array<Byte>} [params.secret] - secret seed bytes\n* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)\n* @param {Array<Byte>} [params.pub] - public key point encoded as bytes\n*\n*/\nfunction KeyPair(eddsa, params) {\n  this.eddsa = eddsa;\n  this._secret = parseBytes(params.secret);\n  if (eddsa.isPoint(params.pub))\n    this._pub = params.pub;\n  else\n    this._pubBytes = parseBytes(params.pub);\n}\n\nKeyPair.fromPublic = function fromPublic(eddsa, pub) {\n  if (pub instanceof KeyPair)\n    return pub;\n  return new KeyPair(eddsa, { pub: pub });\n};\n\nKeyPair.fromSecret = function fromSecret(eddsa, secret) {\n  if (secret instanceof KeyPair)\n    return secret;\n  return new KeyPair(eddsa, { secret: secret });\n};\n\nKeyPair.prototype.secret = function secret() {\n  return this._secret;\n};\n\ncachedProperty(KeyPair, 'pubBytes', function pubBytes() {\n  return this.eddsa.encodePoint(this.pub());\n});\n\ncachedProperty(KeyPair, 'pub', function pub() {\n  if (this._pubBytes)\n    return this.eddsa.decodePoint(this._pubBytes);\n  return this.eddsa.g.mul(this.priv());\n});\n\ncachedProperty(KeyPair, 'privBytes', function privBytes() {\n  var eddsa = this.eddsa;\n  var hash = this.hash();\n  var lastIx = eddsa.encodingLength - 1;\n\n  var a = hash.slice(0, eddsa.encodingLength);\n  a[0] &= 248;\n  a[lastIx] &= 127;\n  a[lastIx] |= 64;\n\n  return a;\n});\n\ncachedProperty(KeyPair, 'priv', function priv() {\n  return this.eddsa.decodeInt(this.privBytes());\n});\n\ncachedProperty(KeyPair, 'hash', function hash() {\n  return this.eddsa.hash().update(this.secret()).digest();\n});\n\ncachedProperty(KeyPair, 'messagePrefix', function messagePrefix() {\n  return this.hash().slice(this.eddsa.encodingLength);\n});\n\nKeyPair.prototype.sign = function sign(message) {\n  assert(this._secret, 'KeyPair can only verify');\n  return this.eddsa.sign(message, this);\n};\n\nKeyPair.prototype.verify = function verify(message, sig) {\n  return this.eddsa.verify(message, sig, this);\n};\n\nKeyPair.prototype.getSecret = function getSecret(enc) {\n  assert(this._secret, 'KeyPair is public only');\n  return utils.encode(this.secret(), enc);\n};\n\nKeyPair.prototype.getPublic = function getPublic(enc) {\n  return utils.encode(this.pubBytes(), enc);\n};\n\nmodule.exports = KeyPair;\n","'use strict';\n\nvar BN = require('bn.js');\nvar utils = require('../utils');\nvar assert = utils.assert;\nvar cachedProperty = utils.cachedProperty;\nvar parseBytes = utils.parseBytes;\n\n/**\n* @param {EDDSA} eddsa - eddsa instance\n* @param {Array<Bytes>|Object} sig -\n* @param {Array<Bytes>|Point} [sig.R] - R point as Point or bytes\n* @param {Array<Bytes>|bn} [sig.S] - S scalar as bn or bytes\n* @param {Array<Bytes>} [sig.Rencoded] - R point encoded\n* @param {Array<Bytes>} [sig.Sencoded] - S scalar encoded\n*/\nfunction Signature(eddsa, sig) {\n  this.eddsa = eddsa;\n\n  if (typeof sig !== 'object')\n    sig = parseBytes(sig);\n\n  if (Array.isArray(sig)) {\n    sig = {\n      R: sig.slice(0, eddsa.encodingLength),\n      S: sig.slice(eddsa.encodingLength)\n    };\n  }\n\n  assert(sig.R && sig.S, 'Signature without R or S');\n\n  if (eddsa.isPoint(sig.R))\n    this._R = sig.R;\n  if (sig.S instanceof BN)\n    this._S = sig.S;\n\n  this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded;\n  this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded;\n}\n\ncachedProperty(Signature, 'S', function S() {\n  return this.eddsa.decodeInt(this.Sencoded());\n});\n\ncachedProperty(Signature, 'R', function R() {\n  return this.eddsa.decodePoint(this.Rencoded());\n});\n\ncachedProperty(Signature, 'Rencoded', function Rencoded() {\n  return this.eddsa.encodePoint(this.R());\n});\n\ncachedProperty(Signature, 'Sencoded', function Sencoded() {\n  return this.eddsa.encodeInt(this.S());\n});\n\nSignature.prototype.toBytes = function toBytes() {\n  return this.Rencoded().concat(this.Sencoded());\n};\n\nSignature.prototype.toHex = function toHex() {\n  return utils.encode(this.toBytes(), 'hex').toUpperCase();\n};\n\nmodule.exports = Signature;\n","module.exports = {\n  doubles: {\n    step: 4,\n    points: [\n      [\n        'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',\n        'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'\n      ],\n      [\n        '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',\n        '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'\n      ],\n      [\n        '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',\n        'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'\n      ],\n      [\n     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(ws >> 1) - 1)\n        z = (ws >> 1) - mod;\n      else\n        z = mod;\n      k.isubn(z);\n    } else {\n      z = 0;\n    }\n\n    naf[i] = z;\n    k.iushrn(1);\n  }\n\n  return naf;\n}\nutils.getNAF = getNAF;\n\n// Represent k1, k2 in a Joint Sparse Form\nfunction getJSF(k1, k2) {\n  var jsf = [\n    [],\n    []\n  ];\n\n  k1 = k1.clone();\n  k2 = k2.clone();\n  var d1 = 0;\n  var d2 = 0;\n  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {\n\n    // First phase\n    var m14 = (k1.andln(3) + d1) & 3;\n    var m24 = (k2.andln(3) + d2) & 3;\n    if (m14 === 3)\n      m14 = -1;\n    if (m24 === 3)\n      m24 = -1;\n    var u1;\n    if ((m14 & 1) === 0) {\n      u1 = 0;\n    } else {\n      var m8 = (k1.andln(7) + d1) & 7;\n      if ((m8 === 3 || m8 === 5) && m24 === 2)\n        u1 = -m14;\n      else\n        u1 = m14;\n    }\n    jsf[0].push(u1);\n\n    var u2;\n    if ((m24 & 1) === 0) {\n      u2 = 0;\n    } else {\n      var m8 = (k2.andln(7) + d2) & 7;\n      if ((m8 === 3 || m8 === 5) && m14 === 2)\n        u2 = -m24;\n      else\n        u2 = m24;\n    }\n    jsf[1].push(u2);\n\n    // Second phase\n    if (2 * d1 === u1 + 1)\n      d1 = 1 - d1;\n    if (2 * d2 === u2 + 1)\n      d2 = 1 - d2;\n    k1.iushrn(1);\n    k2.iushrn(1);\n  }\n\n  return jsf;\n}\nutils.getJSF = getJSF;\n\nfunction cachedProperty(obj, name, computer) {\n  var key = '_' + name;\n  obj.prototype[name] = function cachedProperty() {\n    return this[key] !== undefined ? this[key] :\n           this[key] = computer.call(this);\n  };\n}\nutils.cachedProperty = cachedProperty;\n\nfunction parseBytes(bytes) {\n  return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :\n                                     bytes;\n}\nutils.parseBytes = parseBytes;\n\nfunction intFromLE(bytes) {\n  return new BN(bytes, 'hex', 'le');\n}\nutils.intFromLE = intFromLE;\n\n","module.exports={\n  \"name\": \"elliptic\",\n  \"version\": \"6.5.2\",\n  \"description\": \"EC cryptography\",\n  \"main\": \"lib/elliptic.js\",\n  \"files\": [\n    \"lib\"\n  ],\n  \"scripts\": {\n    \"jscs\": \"jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js\",\n    \"jshint\": \"jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js\",\n    \"lint\": \"npm run jscs && npm run jshint\",\n    \"unit\": \"istanbul test _mocha --reporter=spec test/index.js\",\n    \"test\": \"npm run lint && npm run unit\",\n    \"version\": \"grunt dist && git add dist/\"\n  },\n  \"repository\": {\n    \"type\": \"git\",\n    \"url\": \"git@github.com:indutny/elliptic\"\n  },\n  \"keywords\": [\n    \"EC\",\n    \"Elliptic\",\n    \"curve\",\n    \"Cryptography\"\n  ],\n  \"author\": \"Fedor Indutny <fedor@indutny.com>\",\n  \"license\": \"MIT\",\n  \"bugs\": {\n    \"url\": \"https://github.com/indutny/elliptic/issues\"\n  },\n  \"homepage\": \"https://github.com/indutny/elliptic\",\n  \"devDependencies\": {\n    \"brfs\": \"^1.4.3\",\n    \"coveralls\": \"^3.0.8\",\n    \"grunt\": \"^1.0.4\",\n    \"grunt-browserify\": \"^5.0.0\",\n    \"grunt-cli\": \"^1.2.0\",\n    \"grunt-contrib-connect\": \"^1.0.0\",\n    \"grunt-contrib-copy\": \"^1.0.0\",\n    \"grunt-contrib-uglify\": \"^1.0.1\",\n    \"grunt-mocha-istanbul\": \"^3.0.1\",\n    \"grunt-saucelabs\": \"^9.0.1\",\n    \"istanbul\": \"^0.4.2\",\n    \"jscs\": \"^3.0.7\",\n    \"jshint\": \"^2.10.3\",\n    \"mocha\": \"^6.2.2\"\n  },\n  \"dependencies\": {\n    \"bn.js\": \"^4.4.0\",\n    \"brorand\": \"^1.0.1\",\n    \"hash.js\": \"^1.0.0\",\n    \"hmac-drbg\": \"^1.0.0\",\n    \"inherits\": \"^2.0.1\",\n    \"minimalistic-assert\": \"^1.0.0\",\n    \"minimalistic-crypto-utils\": \"^1.0.0\"\n  }\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nvar objectCreate = Object.create || objectCreatePolyfill\nvar objectKeys = Object.keys || objectKeysPolyfill\nvar bind = Function.prototype.bind || functionBindPolyfill\n\nfunction EventEmitter() {\n  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {\n    this._events = objectCreate(null);\n    this._eventsCount = 0;\n  }\n\n  this._maxListeners = this._maxListeners || undefined;\n}\nmodule.exports = EventEmitter;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nvar defaultMaxListeners = 10;\n\nvar hasDefineProperty;\ntry {\n  var o = {};\n  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });\n  hasDefineProperty = o.x === 0;\n} catch (err) { hasDefineProperty = false }\nif (hasDefineProperty) {\n  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {\n    enumerable: true,\n    get: function() {\n      return defaultMaxListeners;\n    },\n    set: function(arg) {\n      // check whether the input is a positive number (whose value is zero or\n      // greater and not a NaN).\n      if (typeof arg !== 'number' || arg < 0 || arg !== arg)\n        throw new TypeError('\"defaultMaxListeners\" must be a positive number');\n      defaultMaxListeners = arg;\n    }\n  });\n} else {\n  EventEmitter.defaultMaxListeners = defaultMaxListeners;\n}\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n  if (typeof n !== 'number' || n < 0 || isNaN(n))\n    throw new TypeError('\"n\" argument must be a positive number');\n  this._maxListeners = n;\n  return this;\n};\n\nfunction $getMaxListeners(that) {\n  if (that._maxListeners === undefined)\n    return EventEmitter.defaultMaxListeners;\n  return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n  return $getMaxListeners(this);\n};\n\n// These standalone emit* functions are used to optimize calling of event\n// handlers for fast cases because emit() itself often has a variable number of\n// arguments and can be deoptimized because of that. These functions always have\n// the same number of arguments and thus do not get deoptimized, so the code\n// inside them can execute faster.\nfunction emitNone(handler, isFn, self) {\n  if (isFn)\n    handler.call(self);\n  else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      listeners[i].call(self);\n  }\n}\nfunction emitOne(handler, isFn, self, arg1) {\n  if (isFn)\n    handler.call(self, arg1);\n  else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      listeners[i].call(self, arg1);\n  }\n}\nfunction emitTwo(handler, isFn, self, arg1, arg2) {\n  if (isFn)\n    handler.call(self, arg1, arg2);\n  else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      listeners[i].call(self, arg1, arg2);\n  }\n}\nfunction emitThree(handler, isFn, self, arg1, arg2, arg3) {\n  if (isFn)\n    handler.call(self, arg1, arg2, arg3);\n  else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      listeners[i].call(self, arg1, arg2, arg3);\n  }\n}\n\nfunction emitMany(handler, isFn, self, args) {\n  if (isFn)\n    handler.apply(self, args);\n  else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      listeners[i].apply(self, args);\n  }\n}\n\nEventEmitter.prototype.emit = function emit(type) {\n  var er, handler, len, args, i, events;\n  var doError = (type === 'error');\n\n  events = this._events;\n  if (events)\n    doError = (doError && events.error == null);\n  else if (!doError)\n    return false;\n\n  // If there is no 'error' event listener then throw.\n  if (doError) {\n    if (arguments.length > 1)\n      er = arguments[1];\n    if (er instanceof Error) {\n      throw er; // Unhandled 'error' event\n    } else {\n      // At least give some kind of context to the user\n      var err = new Error('Unhandled \"error\" event. (' + er + ')');\n      err.context = er;\n      throw err;\n    }\n    return false;\n  }\n\n  handler = events[type];\n\n  if (!handler)\n    return false;\n\n  var isFn = typeof handler === 'function';\n  len = arguments.length;\n  switch (len) {\n      // fast cases\n    case 1:\n      emitNone(handler, isFn, this);\n      break;\n    case 2:\n      emitOne(handler, isFn, this, arguments[1]);\n      break;\n    case 3:\n      emitTwo(handler, isFn, this, arguments[1], arguments[2]);\n      break;\n    case 4:\n      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);\n      break;\n      // slower\n    default:\n      args = new Array(len - 1);\n      for (i = 1; i < len; i++)\n        args[i - 1] = arguments[i];\n      emitMany(handler, isFn, this, args);\n  }\n\n  return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n  var m;\n  var events;\n  var existing;\n\n  if (typeof listener !== 'function')\n    throw new TypeError('\"listener\" argument must be a function');\n\n  events = target._events;\n  if (!events) {\n    events = target._events = objectCreate(null);\n    target._eventsCount = 0;\n  } else {\n    // To avoid recursion in the case that type === \"newListener\"! Before\n    // adding it to the listeners, first emit \"newListener\".\n    if (events.newListener) {\n      target.emit('newListener', type,\n          listener.listener ? listener.listener : listener);\n\n      // Re-assign `events` because a newListener handler could have caused the\n      // this._events to be assigned to a new object\n      events = target._events;\n    }\n    existing = events[type];\n  }\n\n  if (!existing) {\n    // Optimize the case of one listener. Don't need the extra array object.\n    existing = events[type] = listener;\n    ++target._eventsCount;\n  } else {\n    if (typeof existing === 'function') {\n      // Adding the second element, need to change to array.\n      existing = events[type] =\n          prepend ? [listener, existing] : [existing, listener];\n    } else {\n      // If we've already got an array, just append.\n      if (prepend) {\n        existing.unshift(listener);\n      } else {\n        existing.push(listener);\n      }\n    }\n\n    // Check for listener leak\n    if (!existing.warned) {\n      m = $getMaxListeners(target);\n      if (m && m > 0 && existing.length > m) {\n        existing.warned = true;\n        var w = new Error('Possible EventEmitter memory leak detected. ' +\n            existing.length + ' \"' + String(type) + '\" listeners ' +\n            'added. Use emitter.setMaxListeners() to ' +\n            'increase limit.');\n        w.name = 'MaxListenersExceededWarning';\n        w.emitter = target;\n        w.type = type;\n        w.count = existing.length;\n        if (typeof console === 'object' && console.warn) {\n          console.warn('%s: %s', w.name, w.message);\n        }\n      }\n    }\n  }\n\n  return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n  return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener =\n    function prependListener(type, listener) {\n      return _addListener(this, type, listener, true);\n    };\n\nfunction onceWrapper() {\n  if (!this.fired) {\n    this.target.removeListener(this.type, this.wrapFn);\n    this.fired = true;\n    switch (arguments.length) {\n      case 0:\n        return this.listener.call(this.target);\n      case 1:\n        return this.listener.call(this.target, arguments[0]);\n      case 2:\n        return this.listener.call(this.target, arguments[0], arguments[1]);\n      case 3:\n        return this.listener.call(this.target, arguments[0], arguments[1],\n            arguments[2]);\n      default:\n        var args = new Array(arguments.length);\n        for (var i = 0; i < args.length; ++i)\n          args[i] = arguments[i];\n        this.listener.apply(this.target, args);\n    }\n  }\n}\n\nfunction _onceWrap(target, type, listener) {\n  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };\n  var wrapped = bind.call(onceWrapper, state);\n  wrapped.listener = listener;\n  state.wrapFn = wrapped;\n  return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n  if (typeof listener !== 'function')\n    throw new TypeError('\"listener\" argument must be a function');\n  this.on(type, _onceWrap(this, type, listener));\n  return this;\n};\n\nEventEmitter.prototype.prependOnceListener =\n    function prependOnceListener(type, listener) {\n      if (typeof listener !== 'function')\n        throw new TypeError('\"listener\" argument must be a function');\n      this.prependListener(type, _onceWrap(this, type, listener));\n      return this;\n    };\n\n// Emits a 'removeListener' event if and only if the listener was removed.\nEventEmitter.prototype.removeListener =\n    function removeListener(type, listener) {\n      var list, events, position, i, originalListener;\n\n      if (typeof listener !== 'function')\n        throw new TypeError('\"listener\" argument must be a function');\n\n      events = this._events;\n      if (!events)\n        return this;\n\n      list = events[type];\n      if (!list)\n        return this;\n\n      if (list === listener || list.listener === listener) {\n        if (--this._eventsCount === 0)\n          this._events = objectCreate(null);\n        else {\n          delete events[type];\n          if (events.removeListener)\n            this.emit('removeListener', type, list.listener || listener);\n        }\n      } else if (typeof list !== 'function') {\n        position = -1;\n\n        for (i = list.length - 1; i >= 0; i--) {\n          if (list[i] === listener || list[i].listener === listener) {\n            originalListener = list[i].listener;\n            position = i;\n            break;\n          }\n        }\n\n        if (position < 0)\n          return this;\n\n        if (position === 0)\n          list.shift();\n        else\n          spliceOne(list, position);\n\n        if (list.length === 1)\n          events[type] = list[0];\n\n        if (events.removeListener)\n          this.emit('removeListener', type, originalListener || listener);\n      }\n\n      return this;\n    };\n\nEventEmitter.prototype.removeAllListeners =\n    function removeAllListeners(type) {\n      var listeners, events, i;\n\n      events = this._events;\n      if (!events)\n        return this;\n\n      // not listening for removeListener, no need to emit\n      if (!events.removeListener) {\n        if (arguments.length === 0) {\n          this._events = objectCreate(null);\n          this._eventsCount = 0;\n        } else if (events[type]) {\n          if (--this._eventsCount === 0)\n            this._events = objectCreate(null);\n          else\n            delete events[type];\n        }\n        return this;\n      }\n\n      // emit removeListener for all listeners on all events\n      if (arguments.length === 0) {\n        var keys = objectKeys(events);\n        var key;\n        for (i = 0; i < keys.length; ++i) {\n          key = keys[i];\n          if (key === 'removeListener') continue;\n          this.removeAllListeners(key);\n        }\n        this.removeAllListeners('removeListener');\n        this._events = objectCreate(null);\n        this._eventsCount = 0;\n        return this;\n      }\n\n      listeners = events[type];\n\n      if (typeof listeners === 'function') {\n        this.removeListener(type, listeners);\n      } else if (listeners) {\n        // LIFO order\n        for (i = listeners.length - 1; i >= 0; i--) {\n          this.removeListener(type, listeners[i]);\n        }\n      }\n\n      return this;\n    };\n\nfunction _listeners(target, type, unwrap) {\n  var events = target._events;\n\n  if (!events)\n    return [];\n\n  var evlistener = events[type];\n  if (!evlistener)\n    return [];\n\n  if (typeof evlistener === 'function')\n    return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n\n  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n  return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n  return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n  if (typeof emitter.listenerCount === 'function') {\n    return emitter.listenerCount(type);\n  } else {\n    return listenerCount.call(emitter, type);\n  }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\nfunction listenerCount(type) {\n  var events = this._events;\n\n  if (events) {\n    var evlistener = events[type];\n\n    if (typeof evlistener === 'function') {\n      return 1;\n    } else if (evlistener) {\n      return evlistener.length;\n    }\n  }\n\n  return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];\n};\n\n// About 1.5x faster than the two-arg version of Array#splice().\nfunction spliceOne(list, index) {\n  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)\n    list[i] = list[k];\n  list.pop();\n}\n\nfunction arrayClone(arr, n) {\n  var copy = new Array(n);\n  for (var i = 0; i < n; ++i)\n    copy[i] = arr[i];\n  return copy;\n}\n\nfunction unwrapListeners(arr) {\n  var ret = new Array(arr.length);\n  for (var i = 0; i < ret.length; ++i) {\n    ret[i] = arr[i].listener || arr[i];\n  }\n  return ret;\n}\n\nfunction objectCreatePolyfill(proto) {\n  var F = function() {};\n  F.prototype = proto;\n  return new F;\n}\nfunction objectKeysPolyfill(obj) {\n  var keys = [];\n  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {\n    keys.push(k);\n  }\n  return k;\n}\nfunction functionBindPolyfill(context) {\n  var fn = this;\n  return function () {\n    return fn.apply(context, arguments);\n  };\n}\n","var Buffer = require('safe-buffer').Buffer\nvar MD5 = require('md5.js')\n\n/* eslint-disable camelcase */\nfunction EVP_BytesToKey (password, salt, keyBits, ivLen) {\n  if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary')\n  if (salt) {\n    if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary')\n    if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length')\n  }\n\n  var keyLen = keyBits / 8\n  var key = Buffer.alloc(keyLen)\n  var iv = Buffer.alloc(ivLen || 0)\n  var tmp = Buffer.alloc(0)\n\n  while (keyLen > 0 || ivLen > 0) {\n    var hash = new MD5()\n    hash.update(tmp)\n    hash.update(password)\n    if (salt) hash.update(salt)\n    tmp = hash.digest()\n\n    var used = 0\n\n    if (keyLen > 0) {\n      var keyStart = key.length - keyLen\n      used = Math.min(keyLen, tmp.length)\n      tmp.copy(key, keyStart, 0, used)\n      keyLen -= used\n    }\n\n    if (used < tmp.length && ivLen > 0) {\n      var ivStart = iv.length - ivLen\n      var length = Math.min(ivLen, tmp.length - used)\n      tmp.copy(iv, ivStart, used, used + length)\n      ivLen -= length\n    }\n  }\n\n  tmp.fill(0)\n  return { key: key, iv: iv }\n}\n\nmodule.exports = EVP_BytesToKey\n","'use strict'\nvar Buffer = require('safe-buffer').Buffer\nvar Transform = require('stream').Transform\nvar inherits = require('inherits')\n\nfunction throwIfNotStringOrBuffer (val, prefix) {\n  if (!Buffer.isBuffer(val) && typeof val !== 'string') {\n    throw new TypeError(prefix + ' must be a string or a buffer')\n  }\n}\n\nfunction HashBase (blockSize) {\n  Transform.call(this)\n\n  this._block = Buffer.allocUnsafe(blockSize)\n  this._blockSize = blockSize\n  this._blockOffset = 0\n  this._length = [0, 0, 0, 0]\n\n  this._finalized = false\n}\n\ninherits(HashBase, Transform)\n\nHashBase.prototype._transform = function (chunk, encoding, callback) {\n  var error = null\n  try {\n    this.update(chunk, encoding)\n  } catch (err) {\n    error = err\n  }\n\n  callback(error)\n}\n\nHashBase.prototype._flush = function (callback) {\n  var error = null\n  try {\n    this.push(this.digest())\n  } catch (err) {\n    error = err\n  }\n\n  callback(error)\n}\n\nHashBase.prototype.update = function (data, encoding) {\n  throwIfNotStringOrBuffer(data, 'Data')\n  if (this._finalized) throw new Error('Digest already called')\n  if (!Buffer.isBuffer(data)) data = Buffer.from(data, encoding)\n\n  // consume data\n  var block = this._block\n  var offset = 0\n  while (this._blockOffset + data.length - offset >= this._blockSize) {\n    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]\n    this._update()\n    this._blockOffset = 0\n  }\n  while (offset < data.length) block[this._blockOffset++] = data[offset++]\n\n  // update length\n  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {\n    this._length[j] += carry\n    carry = (this._length[j] / 0x0100000000) | 0\n    if (carry > 0) this._length[j] -= 0x0100000000 * carry\n  }\n\n  return this\n}\n\nHashBase.prototype._update = function () {\n  throw new Error('_update is not implemented')\n}\n\nHashBase.prototype.digest = function (encoding) {\n  if (this._finalized) throw new Error('Digest already called')\n  this._finalized = true\n\n  var digest = this._digest()\n  if (encoding !== undefined) digest = digest.toString(encoding)\n\n  // reset state\n  this._block.fill(0)\n  this._blockOffset = 0\n  for (var i = 0; i < 4; ++i) this._length[i] = 0\n\n  return digest\n}\n\nHashBase.prototype._digest = function () {\n  throw new Error('_digest is not implemented')\n}\n\nmodule.exports = HashBase\n","var hash = exports;\n\nhash.utils = require('./hash/utils');\nhash.common = require('./hash/common');\nhash.sha = require('./hash/sha');\nhash.ripemd = require('./hash/ripemd');\nhash.hmac = require('./hash/hmac');\n\n// Proxy hash functions to the main object\nhash.sha1 = hash.sha.sha1;\nhash.sha256 = hash.sha.sha256;\nhash.sha224 = hash.sha.sha224;\nhash.sha384 = hash.sha.sha384;\nhash.sha512 = hash.sha.sha512;\nhash.ripemd160 = hash.ripemd.ripemd160;\n","'use strict';\n\nvar utils = require('./utils');\nvar assert = require('minimalistic-assert');\n\nfunction BlockHash() {\n  this.pending = null;\n  this.pendingTotal = 0;\n  this.blockSize = this.constructor.blockSize;\n  this.outSize = this.constructor.outSize;\n  this.hmacStrength = this.constructor.hmacStrength;\n  this.padLength = this.constructor.padLength / 8;\n  this.endian = 'big';\n\n  this._delta8 = this.blockSize / 8;\n  this._delta32 = this.blockSize / 32;\n}\nexports.BlockHash = BlockHash;\n\nBlockHash.prototype.update = function update(msg, enc) {\n  // Convert message to array, pad it, and join into 32bit blocks\n  msg = utils.toArray(msg, enc);\n  if (!this.pending)\n    this.pending = msg;\n  else\n    this.pending = this.pending.concat(msg);\n  this.pendingTotal += msg.length;\n\n  // Enough data, try updating\n  if (this.pending.length >= this._delta8) {\n    msg = this.pending;\n\n    // Process pending data in blocks\n    var r = msg.length % this._delta8;\n    this.pending = msg.slice(msg.length - r, msg.length);\n    if (this.pending.length === 0)\n      this.pending = null;\n\n    msg = utils.join32(msg, 0, msg.length - r, this.endian);\n    for (var i = 0; i < msg.length; i += this._delta32)\n      this._update(msg, i, i + this._delta32);\n  }\n\n  return this;\n};\n\nBlockHash.prototype.digest = function digest(enc) {\n  this.update(this._pad());\n  assert(this.pending === null);\n\n  return this._digest(enc);\n};\n\nBlockHash.prototype._pad = function pad() {\n  var len = this.pendingTotal;\n  var bytes = this._delta8;\n  var k = bytes - ((len + this.padLength) % bytes);\n  var res = new Array(k + this.padLength);\n  res[0] = 0x80;\n  for (var i = 1; i < k; i++)\n    res[i] = 0;\n\n  // Append length\n  len <<= 3;\n  if (this.endian === 'big') {\n    for (var t = 8; t < this.padLength; t++)\n      res[i++] = 0;\n\n    res[i++] = 0;\n    res[i++] = 0;\n    res[i++] = 0;\n    res[i++] = 0;\n    res[i++] = (len >>> 24) & 0xff;\n    res[i++] = (len >>> 16) & 0xff;\n    res[i++] = (len >>> 8) & 0xff;\n    res[i++] = len & 0xff;\n  } else {\n    res[i++] = len & 0xff;\n    res[i++] = (len >>> 8) & 0xff;\n    res[i++] = (len >>> 16) & 0xff;\n    res[i++] = (len >>> 24) & 0xff;\n    res[i++] = 0;\n    res[i++] = 0;\n    res[i++] = 0;\n    res[i++] = 0;\n\n    for (t = 8; t < this.padLength; t++)\n      res[i++] = 0;\n  }\n\n  return res;\n};\n","'use strict';\n\nvar utils = require('./utils');\nvar assert = require('minimalistic-assert');\n\nfunction Hmac(hash, key, enc) {\n  if (!(this instanceof Hmac))\n    return new Hmac(hash, key, enc);\n  this.Hash = hash;\n  this.blockSize = hash.blockSize / 8;\n  this.outSize = hash.outSize / 8;\n  this.inner = null;\n  this.outer = null;\n\n  this._init(utils.toArray(key, enc));\n}\nmodule.exports = Hmac;\n\nHmac.prototype._init = function init(key) {\n  // Shorten key, if needed\n  if (key.length > this.blockSize)\n    key = new this.Hash().update(key).digest();\n  assert(key.length <= this.blockSize);\n\n  // Add padding to key\n  for (var i = key.length; i < this.blockSize; i++)\n    key.push(0);\n\n  for (i = 0; i < key.length; i++)\n    key[i] ^= 0x36;\n  this.inner = new this.Hash().update(key);\n\n  // 0x36 ^ 0x5c = 0x6a\n  for (i = 0; i < key.length; i++)\n    key[i] ^= 0x6a;\n  this.outer = new this.Hash().update(key);\n};\n\nHmac.prototype.update = function update(msg, enc) {\n  this.inner.update(msg, enc);\n  return this;\n};\n\nHmac.prototype.digest = function digest(enc) {\n  this.outer.update(this.inner.digest());\n  return this.outer.digest(enc);\n};\n","'use strict';\n\nvar utils = require('./utils');\nvar common = require('./common');\n\nvar rotl32 = utils.rotl32;\nvar sum32 = utils.sum32;\nvar sum32_3 = utils.sum32_3;\nvar sum32_4 = utils.sum32_4;\nvar BlockHash = common.BlockHash;\n\nfunction RIPEMD160() {\n  if (!(this instanceof RIPEMD160))\n    return new RIPEMD160();\n\n  BlockHash.call(this);\n\n  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];\n  this.endian = 'little';\n}\nutils.inherits(RIPEMD160, BlockHash);\nexports.ripemd160 = RIPEMD160;\n\nRIPEMD160.blockSize = 512;\nRIPEMD160.outSize = 160;\nRIPEMD160.hmacStrength = 192;\nRIPEMD160.padLength = 64;\n\nRIPEMD160.prototype._update = function update(msg, start) {\n  var A = this.h[0];\n  var B = this.h[1];\n  var C = this.h[2];\n  var D = this.h[3];\n  var E = this.h[4];\n  var Ah = A;\n  var Bh = B;\n  var Ch = C;\n  var Dh = D;\n  var Eh = E;\n  for (var j = 0; j < 80; j++) {\n    var T = sum32(\n      rotl32(\n        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),\n        s[j]),\n      E);\n    A = E;\n    E = D;\n    D = rotl32(C, 10);\n    C = B;\n    B = T;\n    T = sum32(\n      rotl32(\n        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),\n        sh[j]),\n      Eh);\n    Ah = Eh;\n    Eh = Dh;\n    Dh = rotl32(Ch, 10);\n    Ch = Bh;\n    Bh = T;\n  }\n  T = sum32_3(this.h[1], C, Dh);\n  this.h[1] = sum32_3(this.h[2], D, Eh);\n  this.h[2] = sum32_3(this.h[3], E, Ah);\n  this.h[3] = sum32_3(this.h[4], A, Bh);\n  this.h[4] = sum32_3(this.h[0], B, Ch);\n  this.h[0] = T;\n};\n\nRIPEMD160.prototype._digest = function digest(enc) {\n  if (enc === 'hex')\n    return utils.toHex32(this.h, 'little');\n  else\n    return utils.split32(this.h, 'little');\n};\n\nfunction f(j, x, y, z) {\n  if (j <= 15)\n    return x ^ y ^ z;\n  else if (j <= 31)\n    return (x & y) | ((~x) & z);\n  else if (j <= 47)\n    return (x | (~y)) ^ z;\n  else if (j <= 63)\n    return (x & z) | (y & (~z));\n  else\n    return x ^ (y | (~z));\n}\n\nfunction K(j) {\n  if (j <= 15)\n    return 0x00000000;\n  else if (j <= 31)\n    return 0x5a827999;\n  else if (j <= 47)\n    return 0x6ed9eba1;\n  else if (j <= 63)\n    return 0x8f1bbcdc;\n  else\n    return 0xa953fd4e;\n}\n\nfunction Kh(j) {\n  if (j <= 15)\n    return 0x50a28be6;\n  else if (j <= 31)\n    return 0x5c4dd124;\n  else if (j <= 47)\n    return 0x6d703ef3;\n  else if (j <= 63)\n    return 0x7a6d76e9;\n  else\n    return 0x00000000;\n}\n\nvar r = [\n  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,\n  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,\n  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,\n  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,\n  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13\n];\n\nvar rh = [\n  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,\n  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,\n  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,\n  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,\n  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11\n];\n\nvar s = [\n  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,\n  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,\n  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,\n  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,\n  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6\n];\n\nvar sh = [\n  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,\n  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,\n  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,\n  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,\n  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11\n];\n","'use strict';\n\nexports.sha1 = require('./sha/1');\nexports.sha224 = require('./sha/224');\nexports.sha256 = require('./sha/256');\nexports.sha384 = require('./sha/384');\nexports.sha512 = require('./sha/512');\n","'use strict';\n\nvar utils = require('../utils');\nvar common = require('../common');\nvar shaCommon = require('./common');\n\nvar rotl32 = utils.rotl32;\nvar sum32 = utils.sum32;\nvar sum32_5 = utils.sum32_5;\nvar ft_1 = shaCommon.ft_1;\nvar BlockHash = common.BlockHash;\n\nvar sha1_K = [\n  0x5A827999, 0x6ED9EBA1,\n  0x8F1BBCDC, 0xCA62C1D6\n];\n\nfunction SHA1() {\n  if (!(this instanceof SHA1))\n    return new SHA1();\n\n  BlockHash.call(this);\n  this.h = [\n    0x67452301, 0xefcdab89, 0x98badcfe,\n    0x10325476, 0xc3d2e1f0 ];\n  this.W = new Array(80);\n}\n\nutils.inherits(SHA1, BlockHash);\nmodule.exports = SHA1;\n\nSHA1.blockSize = 512;\nSHA1.outSize = 160;\nSHA1.hmacStrength = 80;\nSHA1.padLength = 64;\n\nSHA1.prototype._update = function _update(msg, start) {\n  var W = this.W;\n\n  for (var i = 0; i < 16; i++)\n    W[i] = msg[start + i];\n\n  for(; i < W.length; i++)\n    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);\n\n  var a = this.h[0];\n  var b = this.h[1];\n  var c = this.h[2];\n  var d = this.h[3];\n  var e = this.h[4];\n\n  for (i = 0; i < W.length; i++) {\n    var s = ~~(i / 20);\n    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);\n    e = d;\n    d = c;\n    c = rotl32(b, 30);\n    b = a;\n    a = t;\n  }\n\n  this.h[0] = sum32(this.h[0], a);\n  this.h[1] = sum32(this.h[1], b);\n  this.h[2] = sum32(this.h[2], c);\n  this.h[3] = sum32(this.h[3], d);\n  this.h[4] = sum32(this.h[4], e);\n};\n\nSHA1.prototype._digest = function digest(enc) {\n  if (enc === 'hex')\n    return utils.toHex32(this.h, 'big');\n  else\n    return utils.split32(this.h, 'big');\n};\n","'use strict';\n\nvar utils = require('../utils');\nvar SHA256 = require('./256');\n\nfunction SHA224() {\n  if (!(this instanceof SHA224))\n    return new SHA224();\n\n  SHA256.call(this);\n  this.h = [\n    0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,\n    0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];\n}\nutils.inherits(SHA224, SHA256);\nmodule.exports = SHA224;\n\nSHA224.blockSize = 512;\nSHA224.outSize = 224;\nSHA224.hmacStrength = 192;\nSHA224.padLength = 64;\n\nSHA224.prototype._digest = function digest(enc) {\n  // Just truncate output\n  if (enc === 'hex')\n    return utils.toHex32(this.h.slice(0, 7), 'big');\n  else\n    return utils.split32(this.h.slice(0, 7), 'big');\n};\n\n","'use strict';\n\nvar utils = require('../utils');\nvar common = require('../common');\nvar shaCommon = require('./common');\nvar assert = require('minimalistic-assert');\n\nvar sum32 = utils.sum32;\nvar sum32_4 = utils.sum32_4;\nvar sum32_5 = utils.sum32_5;\nvar ch32 = shaCommon.ch32;\nvar maj32 = shaCommon.maj32;\nvar s0_256 = shaCommon.s0_256;\nvar s1_256 = shaCommon.s1_256;\nvar g0_256 = shaCommon.g0_256;\nvar g1_256 = shaCommon.g1_256;\n\nvar BlockHash = common.BlockHash;\n\nvar sha256_K = [\n  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,\n  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,\n  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,\n  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,\n  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,\n  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,\n  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,\n  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,\n  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,\n  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,\n  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,\n  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,\n  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,\n  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,\n  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,\n  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2\n];\n\nfunction SHA256() {\n  if (!(this instanceof SHA256))\n    return new SHA256();\n\n  BlockHash.call(this);\n  this.h = [\n    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,\n    0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19\n  ];\n  this.k = sha256_K;\n  this.W = new Array(64);\n}\nutils.inherits(SHA256, BlockHash);\nmodule.exports = SHA256;\n\nSHA256.blockSize = 512;\nSHA256.outSize = 256;\nSHA256.hmacStrength = 192;\nSHA256.padLength = 64;\n\nSHA256.prototype._update = function _update(msg, start) {\n  var W = this.W;\n\n  for (var i = 0; i < 16; i++)\n    W[i] = msg[start + i];\n  for (; i < W.length; i++)\n    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);\n\n  var a = this.h[0];\n  var b = this.h[1];\n  var c = this.h[2];\n  var d = this.h[3];\n  var e = this.h[4];\n  var f = this.h[5];\n  var g = this.h[6];\n  var h = this.h[7];\n\n  assert(this.k.length === W.length);\n  for (i = 0; i < W.length; i++) {\n    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);\n    var T2 = sum32(s0_256(a), maj32(a, b, c));\n    h = g;\n    g = f;\n    f = e;\n    e = sum32(d, T1);\n    d = c;\n    c = b;\n    b = a;\n    a = sum32(T1, T2);\n  }\n\n  this.h[0] = sum32(this.h[0], a);\n  this.h[1] = sum32(this.h[1], b);\n  this.h[2] = sum32(this.h[2], c);\n  this.h[3] = sum32(this.h[3], d);\n  this.h[4] = sum32(this.h[4], e);\n  this.h[5] = sum32(this.h[5], f);\n  this.h[6] = sum32(this.h[6], g);\n  this.h[7] = sum32(this.h[7], h);\n};\n\nSHA256.prototype._digest = function digest(enc) {\n  if (enc === 'hex')\n    return utils.toHex32(this.h, 'big');\n  else\n    return utils.split32(this.h, 'big');\n};\n","'use strict';\n\nvar utils = require('../utils');\n\nvar SHA512 = require('./512');\n\nfunction SHA384() {\n  if (!(this instanceof SHA384))\n    return new SHA384();\n\n  SHA512.call(this);\n  this.h = [\n    0xcbbb9d5d, 0xc1059ed8,\n    0x629a292a, 0x367cd507,\n    0x9159015a, 0x3070dd17,\n    0x152fecd8, 0xf70e5939,\n    0x67332667, 0xffc00b31,\n    0x8eb44a87, 0x68581511,\n    0xdb0c2e0d, 0x64f98fa7,\n    0x47b5481d, 0xbefa4fa4 ];\n}\nutils.inherits(SHA384, SHA512);\nmodule.exports = SHA384;\n\nSHA384.blockSize = 1024;\nSHA384.outSize = 384;\nSHA384.hmacStrength = 192;\nSHA384.padLength = 128;\n\nSHA384.prototype._digest = function digest(enc) {\n  if (enc === 'hex')\n    return utils.toHex32(this.h.slice(0, 12), 'big');\n  else\n    return utils.split32(this.h.slice(0, 12), 'big');\n};\n","'use strict';\n\nvar utils = require('../utils');\nvar common = require('../common');\nvar assert = require('minimalistic-assert');\n\nvar rotr64_hi = utils.rotr64_hi;\nvar rotr64_lo = utils.rotr64_lo;\nvar shr64_hi = utils.shr64_hi;\nvar shr64_lo = utils.shr64_lo;\nvar sum64 = utils.sum64;\nvar sum64_hi = utils.sum64_hi;\nvar sum64_lo = utils.sum64_lo;\nvar sum64_4_hi = utils.sum64_4_hi;\nvar sum64_4_lo = utils.sum64_4_lo;\nvar sum64_5_hi = utils.sum64_5_hi;\nvar sum64_5_lo = utils.sum64_5_lo;\n\nvar BlockHash = common.BlockHash;\n\nvar sha512_K = [\n  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,\n  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,\n  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,\n  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,\n  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,\n  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,\n  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,\n  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,\n  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,\n  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,\n  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,\n  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,\n  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,\n  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,\n  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,\n  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,\n  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,\n  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,\n  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,\n  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,\n  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,\n  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,\n  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,\n  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,\n  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,\n  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,\n  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,\n  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,\n  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,\n  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,\n  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,\n  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,\n  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,\n  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,\n  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,\n  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,\n  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,\n  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,\n  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,\n  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817\n];\n\nfunction SHA512() {\n  if (!(this instanceof SHA512))\n    return new SHA512();\n\n  BlockHash.call(this);\n  this.h = [\n    0x6a09e667, 0xf3bcc908,\n    0xbb67ae85, 0x84caa73b,\n    0x3c6ef372, 0xfe94f82b,\n    0xa54ff53a, 0x5f1d36f1,\n    0x510e527f, 0xade682d1,\n    0x9b05688c, 0x2b3e6c1f,\n    0x1f83d9ab, 0xfb41bd6b,\n    0x5be0cd19, 0x137e2179 ];\n  this.k = sha512_K;\n  this.W = new Array(160);\n}\nutils.inherits(SHA512, BlockHash);\nmodule.exports = SHA512;\n\nSHA512.blockSize = 1024;\nSHA512.outSize = 512;\nSHA512.hmacStrength = 192;\nSHA512.padLength = 128;\n\nSHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {\n  var W = this.W;\n\n  // 32 x 32bit words\n  for (var i = 0; i < 32; i++)\n    W[i] = msg[start + i];\n  for (; i < W.length; i += 2) {\n    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2\n    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);\n    var c1_hi = W[i - 14];  // i - 7\n    var c1_lo = W[i - 13];\n    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15\n    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);\n    var c3_hi = W[i - 32];  // i - 16\n    var c3_lo = W[i - 31];\n\n    W[i] = sum64_4_hi(\n      c0_hi, c0_lo,\n      c1_hi, c1_lo,\n      c2_hi, c2_lo,\n      c3_hi, c3_lo);\n    W[i + 1] = sum64_4_lo(\n      c0_hi, c0_lo,\n      c1_hi, c1_lo,\n      c2_hi, c2_lo,\n      c3_hi, c3_lo);\n  }\n};\n\nSHA512.prototype._update = function _update(msg, start) {\n  this._prepareBlock(msg, start);\n\n  var W = this.W;\n\n  var ah = this.h[0];\n  var al = this.h[1];\n  var bh = this.h[2];\n  var bl = this.h[3];\n  var ch = this.h[4];\n  var cl = this.h[5];\n  var dh = this.h[6];\n  var dl = this.h[7];\n  var eh = this.h[8];\n  var el = this.h[9];\n  var fh = this.h[10];\n  var fl = this.h[11];\n  var gh = this.h[12];\n  var gl = this.h[13];\n  var hh = this.h[14];\n  var hl = this.h[15];\n\n  assert(this.k.length === W.length);\n  for (var i = 0; i < W.length; i += 2) {\n    var c0_hi = hh;\n    var c0_lo = hl;\n    var c1_hi = s1_512_hi(eh, el);\n    var c1_lo = s1_512_lo(eh, el);\n    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);\n    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);\n    var c3_hi = this.k[i];\n    var c3_lo = this.k[i + 1];\n    var c4_hi = W[i];\n    var c4_lo = W[i + 1];\n\n    var T1_hi = sum64_5_hi(\n      c0_hi, c0_lo,\n      c1_hi, c1_lo,\n      c2_hi, c2_lo,\n      c3_hi, c3_lo,\n      c4_hi, c4_lo);\n    var T1_lo = sum64_5_lo(\n      c0_hi, c0_lo,\n      c1_hi, c1_lo,\n      c2_hi, c2_lo,\n      c3_hi, c3_lo,\n      c4_hi, c4_lo);\n\n    c0_hi = s0_512_hi(ah, al);\n    c0_lo = s0_512_lo(ah, al);\n    c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);\n    c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);\n\n    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);\n    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);\n\n    hh = gh;\n    hl = gl;\n\n    gh = fh;\n    gl = fl;\n\n    fh = eh;\n    fl = el;\n\n    eh = sum64_hi(dh, dl, T1_hi, T1_lo);\n    el = sum64_lo(dl, dl, T1_hi, T1_lo);\n\n    dh = ch;\n    dl = cl;\n\n    ch = bh;\n    cl = bl;\n\n    bh = ah;\n    bl = al;\n\n    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);\n    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);\n  }\n\n  sum64(this.h, 0, ah, al);\n  sum64(this.h, 2, bh, bl);\n  sum64(this.h, 4, ch, cl);\n  sum64(this.h, 6, dh, dl);\n  sum64(this.h, 8, eh, el);\n  sum64(this.h, 10, fh, fl);\n  sum64(this.h, 12, gh, gl);\n  sum64(this.h, 14, hh, hl);\n};\n\nSHA512.prototype._digest = function digest(enc) {\n  if (enc === 'hex')\n    return utils.toHex32(this.h, 'big');\n  else\n    return utils.split32(this.h, 'big');\n};\n\nfunction ch64_hi(xh, xl, yh, yl, zh) {\n  var r = (xh & yh) ^ ((~xh) & zh);\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction ch64_lo(xh, xl, yh, yl, zh, zl) {\n  var r = (xl & yl) ^ ((~xl) & zl);\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction maj64_hi(xh, xl, yh, yl, zh) {\n  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction maj64_lo(xh, xl, yh, yl, zh, zl) {\n  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction s0_512_hi(xh, xl) {\n  var c0_hi = rotr64_hi(xh, xl, 28);\n  var c1_hi = rotr64_hi(xl, xh, 2);  // 34\n  var c2_hi = rotr64_hi(xl, xh, 7);  // 39\n\n  var r = c0_hi ^ c1_hi ^ c2_hi;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction s0_512_lo(xh, xl) {\n  var c0_lo = rotr64_lo(xh, xl, 28);\n  var c1_lo = rotr64_lo(xl, xh, 2);  // 34\n  var c2_lo = rotr64_lo(xl, xh, 7);  // 39\n\n  var r = c0_lo ^ c1_lo ^ c2_lo;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction s1_512_hi(xh, xl) {\n  var c0_hi = rotr64_hi(xh, xl, 14);\n  var c1_hi = rotr64_hi(xh, xl, 18);\n  var c2_hi = rotr64_hi(xl, xh, 9);  // 41\n\n  var r = c0_hi ^ c1_hi ^ c2_hi;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction s1_512_lo(xh, xl) {\n  var c0_lo = rotr64_lo(xh, xl, 14);\n  var c1_lo = rotr64_lo(xh, xl, 18);\n  var c2_lo = rotr64_lo(xl, xh, 9);  // 41\n\n  var r = c0_lo ^ c1_lo ^ c2_lo;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction g0_512_hi(xh, xl) {\n  var c0_hi = rotr64_hi(xh, xl, 1);\n  var c1_hi = rotr64_hi(xh, xl, 8);\n  var c2_hi = shr64_hi(xh, xl, 7);\n\n  var r = c0_hi ^ c1_hi ^ c2_hi;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction g0_512_lo(xh, xl) {\n  var c0_lo = rotr64_lo(xh, xl, 1);\n  var c1_lo = rotr64_lo(xh, xl, 8);\n  var c2_lo = shr64_lo(xh, xl, 7);\n\n  var r = c0_lo ^ c1_lo ^ c2_lo;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction g1_512_hi(xh, xl) {\n  var c0_hi = rotr64_hi(xh, xl, 19);\n  var c1_hi = rotr64_hi(xl, xh, 29);  // 61\n  var c2_hi = shr64_hi(xh, xl, 6);\n\n  var r = c0_hi ^ c1_hi ^ c2_hi;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n\nfunction g1_512_lo(xh, xl) {\n  var c0_lo = rotr64_lo(xh, xl, 19);\n  var c1_lo = rotr64_lo(xl, xh, 29);  // 61\n  var c2_lo = shr64_lo(xh, xl, 6);\n\n  var r = c0_lo ^ c1_lo ^ c2_lo;\n  if (r < 0)\n    r += 0x100000000;\n  return r;\n}\n","'use strict';\n\nvar utils = require('../utils');\nvar rotr32 = utils.rotr32;\n\nfunction ft_1(s, x, y, z) {\n  if (s === 0)\n    return ch32(x, y, z);\n  if (s === 1 || s === 3)\n    return p32(x, y, z);\n  if (s === 2)\n    return maj32(x, y, z);\n}\nexports.ft_1 = ft_1;\n\nfunction ch32(x, y, z) {\n  return (x & y) ^ ((~x) & z);\n}\nexports.ch32 = ch32;\n\nfunction maj32(x, y, z) {\n  return (x & y) ^ (x & z) ^ (y & z);\n}\nexports.maj32 = maj32;\n\nfunction p32(x, y, z) {\n  return x ^ y ^ z;\n}\nexports.p32 = p32;\n\nfunction s0_256(x) {\n  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);\n}\nexports.s0_256 = s0_256;\n\nfunction s1_256(x) {\n  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);\n}\nexports.s1_256 = s1_256;\n\nfunction g0_256(x) {\n  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);\n}\nexports.g0_256 = g0_256;\n\nfunction g1_256(x) {\n  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);\n}\nexports.g1_256 = g1_256;\n","'use strict';\n\nvar assert = require('minimalistic-assert');\nvar inherits = require('inherits');\n\nexports.inherits = inherits;\n\nfunction isSurrogatePair(msg, i) {\n  if ((msg.charCodeAt(i) & 0xFC00) !== 0xD800) {\n    return false;\n  }\n  if (i < 0 || i + 1 >= msg.length) {\n    return false;\n  }\n  return (msg.charCodeAt(i + 1) & 0xFC00) === 0xDC00;\n}\n\nfunction toArray(msg, enc) {\n  if (Array.isArray(msg))\n    return msg.slice();\n  if (!msg)\n    return [];\n  var res = [];\n  if (typeof msg === 'string') {\n    if (!enc) {\n      // Inspired by stringToUtf8ByteArray() in closure-library by Google\n      // https://github.com/google/closure-library/blob/8598d87242af59aac233270742c8984e2b2bdbe0/closure/goog/crypt/crypt.js#L117-L143\n      // Apache License 2.0\n      // https://github.com/google/closure-library/blob/master/LICENSE\n      var p = 0;\n      for (var i = 0; i < msg.length; i++) {\n        var c = msg.charCodeAt(i);\n        if (c < 128) {\n          res[p++] = c;\n        } else if (c < 2048) {\n          res[p++] = (c >> 6) | 192;\n          res[p++] = (c & 63) | 128;\n        } else if (isSurrogatePair(msg, i)) {\n          c = 0x10000 + ((c & 0x03FF) << 10) + (msg.charCodeAt(++i) & 0x03FF);\n          res[p++] = (c >> 18) | 240;\n          res[p++] = ((c >> 12) & 63) | 128;\n          res[p++] = ((c >> 6) & 63) | 128;\n          res[p++] = (c & 63) | 128;\n        } else {\n          res[p++] = (c >> 12) | 224;\n          res[p++] = ((c >> 6) & 63) | 128;\n          res[p++] = (c & 63) | 128;\n        }\n      }\n    } else if (enc === 'hex') {\n      msg = msg.replace(/[^a-z0-9]+/ig, '');\n      if (msg.length % 2 !== 0)\n        msg = '0' + msg;\n      for (i = 0; i < msg.length; i += 2)\n        res.push(parseInt(msg[i] + msg[i + 1], 16));\n    }\n  } else {\n    for (i = 0; i < msg.length; i++)\n      res[i] = msg[i] | 0;\n  }\n  return res;\n}\nexports.toArray = toArray;\n\nfunction toHex(msg) {\n  var res = '';\n  for (var i = 0; i < msg.length; i++)\n    res += zero2(msg[i].toString(16));\n  return res;\n}\nexports.toHex = toHex;\n\nfunction htonl(w) {\n  var res = (w >>> 24) |\n            ((w >>> 8) & 0xff00) |\n            ((w << 8) & 0xff0000) |\n            ((w & 0xff) << 24);\n  return res >>> 0;\n}\nexports.htonl = htonl;\n\nfunction toHex32(msg, endian) {\n  var res = '';\n  for (var i = 0; i < msg.length; i++) {\n    var w = msg[i];\n    if (endian === 'little')\n      w = htonl(w);\n    res += zero8(w.toString(16));\n  }\n  return res;\n}\nexports.toHex32 = toHex32;\n\nfunction zero2(word) {\n  if (word.length === 1)\n    return '0' + word;\n  else\n    return word;\n}\nexports.zero2 = zero2;\n\nfunction zero8(word) {\n  if (word.length === 7)\n    return '0' + word;\n  else if (word.length === 6)\n    return '00' + word;\n  else if (word.length === 5)\n    return '000' + word;\n  else if (word.length === 4)\n    return '0000' + word;\n  else if (word.length === 3)\n    return '00000' + word;\n  else if (word.length === 2)\n    return '000000' + word;\n  else if (word.length === 1)\n    return '0000000' + word;\n  else\n    return word;\n}\nexports.zero8 = zero8;\n\nfunction join32(msg, start, end, endian) {\n  var len = end - start;\n  assert(len % 4 === 0);\n  var res = new Array(len / 4);\n  for (var i = 0, k = start; i < res.length; i++, k += 4) {\n    var w;\n    if (endian === 'big')\n      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];\n    else\n      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];\n    res[i] = w >>> 0;\n  }\n  return res;\n}\nexports.join32 = join32;\n\nfunction split32(msg, endian) {\n  var res = new Array(msg.length * 4);\n  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {\n    var m = msg[i];\n    if (endian === 'big') {\n      res[k] = m >>> 24;\n      res[k + 1] = (m >>> 16) & 0xff;\n      res[k + 2] = (m >>> 8) & 0xff;\n      res[k + 3] = m & 0xff;\n    } else {\n      res[k + 3] = m >>> 24;\n      res[k + 2] = (m >>> 16) & 0xff;\n      res[k + 1] = (m >>> 8) & 0xff;\n      res[k] = m & 0xff;\n    }\n  }\n  return res;\n}\nexports.split32 = split32;\n\nfunction rotr32(w, b) {\n  return (w >>> b) | (w << (32 - b));\n}\nexports.rotr32 = rotr32;\n\nfunction rotl32(w, b) {\n  return (w << b) | (w >>> (32 - b));\n}\nexports.rotl32 = rotl32;\n\nfunction sum32(a, b) {\n  return (a + b) >>> 0;\n}\nexports.sum32 = sum32;\n\nfunction sum32_3(a, b, c) {\n  return (a + b + c) >>> 0;\n}\nexports.sum32_3 = sum32_3;\n\nfunction sum32_4(a, b, c, d) {\n  return (a + b + c + d) >>> 0;\n}\nexports.sum32_4 = sum32_4;\n\nfunction sum32_5(a, b, c, d, e) {\n  return (a + b + c + d + e) >>> 0;\n}\nexports.sum32_5 = sum32_5;\n\nfunction sum64(buf, pos, ah, al) {\n  var bh = buf[pos];\n  var bl = buf[pos + 1];\n\n  var lo = (al + bl) >>> 0;\n  var hi = (lo < al ? 1 : 0) + ah + bh;\n  buf[pos] = hi >>> 0;\n  buf[pos + 1] = lo;\n}\nexports.sum64 = sum64;\n\nfunction sum64_hi(ah, al, bh, bl) {\n  var lo = (al + bl) >>> 0;\n  var hi = (lo < al ? 1 : 0) + ah + bh;\n  return hi >>> 0;\n}\nexports.sum64_hi = sum64_hi;\n\nfunction sum64_lo(ah, al, bh, bl) {\n  var lo = al + bl;\n  return lo >>> 0;\n}\nexports.sum64_lo = sum64_lo;\n\nfunction sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {\n  var carry = 0;\n  var lo = al;\n  lo = (lo + bl) >>> 0;\n  carry += lo < al ? 1 : 0;\n  lo = (lo + cl) >>> 0;\n  carry += lo < cl ? 1 : 0;\n  lo = (lo + dl) >>> 0;\n  carry += lo < dl ? 1 : 0;\n\n  var hi = ah + bh + ch + dh + carry;\n  return hi >>> 0;\n}\nexports.sum64_4_hi = sum64_4_hi;\n\nfunction sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {\n  var lo = al + bl + cl + dl;\n  return lo >>> 0;\n}\nexports.sum64_4_lo = sum64_4_lo;\n\nfunction sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {\n  var carry = 0;\n  var lo = al;\n  lo = (lo + bl) >>> 0;\n  carry += lo < al ? 1 : 0;\n  lo = (lo + cl) >>> 0;\n  carry += lo < cl ? 1 : 0;\n  lo = (lo + dl) >>> 0;\n  carry += lo < dl ? 1 : 0;\n  lo = (lo + el) >>> 0;\n  carry += lo < el ? 1 : 0;\n\n  var hi = ah + bh + ch + dh + eh + carry;\n  return hi >>> 0;\n}\nexports.sum64_5_hi = sum64_5_hi;\n\nfunction sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {\n  var lo = al + bl + cl + dl + el;\n\n  return lo >>> 0;\n}\nexports.sum64_5_lo = sum64_5_lo;\n\nfunction rotr64_hi(ah, al, num) {\n  var r = (al << (32 - num)) | (ah >>> num);\n  return r >>> 0;\n}\nexports.rotr64_hi = rotr64_hi;\n\nfunction rotr64_lo(ah, al, num) {\n  var r = (ah << (32 - num)) | (al >>> num);\n  return r >>> 0;\n}\nexports.rotr64_lo = rotr64_lo;\n\nfunction shr64_hi(ah, al, num) {\n  return ah >>> num;\n}\nexports.shr64_hi = shr64_hi;\n\nfunction shr64_lo(ah, al, num) {\n  var r = (ah << (32 - num)) | (al >>> num);\n  return r >>> 0;\n}\nexports.shr64_lo = shr64_lo;\n","'use strict';\n\nvar hash = require('hash.js');\nvar utils = require('minimalistic-crypto-utils');\nvar assert = require('minimalistic-assert');\n\nfunction HmacDRBG(options) {\n  if (!(this instanceof HmacDRBG))\n    return new HmacDRBG(options);\n  this.hash = options.hash;\n  this.predResist = !!options.predResist;\n\n  this.outLen = this.hash.outSize;\n  this.minEntropy = options.minEntropy || this.hash.hmacStrength;\n\n  this._reseed = null;\n  this.reseedInterval = null;\n  this.K = null;\n  this.V = null;\n\n  var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex');\n  var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex');\n  var pers = utils.toArray(options.pers, options.persEnc || 'hex');\n  assert(entropy.length >= (this.minEntropy / 8),\n         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');\n  this._init(entropy, nonce, pers);\n}\nmodule.exports = HmacDRBG;\n\nHmacDRBG.prototype._init = function init(entropy, nonce, pers) {\n  var seed = entropy.concat(nonce).concat(pers);\n\n  this.K = new Array(this.outLen / 8);\n  this.V = new Array(this.outLen / 8);\n  for (var i = 0; i < this.V.length; i++) {\n    this.K[i] = 0x00;\n    this.V[i] = 0x01;\n  }\n\n  this._update(seed);\n  this._reseed = 1;\n  this.reseedInterval = 0x1000000000000;  // 2^48\n};\n\nHmacDRBG.prototype._hmac = function hmac() {\n  return new hash.hmac(this.hash, this.K);\n};\n\nHmacDRBG.prototype._update = function update(seed) {\n  var kmac = this._hmac()\n                 .update(this.V)\n                 .update([ 0x00 ]);\n  if (seed)\n    kmac = kmac.update(seed);\n  this.K = kmac.digest();\n  this.V = this._hmac().update(this.V).digest();\n  if (!seed)\n    return;\n\n  this.K = this._hmac()\n               .update(this.V)\n               .update([ 0x01 ])\n               .update(seed)\n               .digest();\n  this.V = this._hmac().update(this.V).digest();\n};\n\nHmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {\n  // Optional entropy enc\n  if (typeof entropyEnc !== 'string') {\n    addEnc = add;\n    add = entropyEnc;\n    entropyEnc = null;\n  }\n\n  entropy = utils.toArray(entropy, entropyEnc);\n  add = utils.toArray(add, addEnc);\n\n  assert(entropy.length >= (this.minEntropy / 8),\n         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');\n\n  this._update(entropy.concat(add || []));\n  this._reseed = 1;\n};\n\nHmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {\n  if (this._reseed > this.reseedInterval)\n    throw new Error('Reseed is required');\n\n  // Optional encoding\n  if (typeof enc !== 'string') {\n    addEnc = add;\n    add = enc;\n    enc = null;\n  }\n\n  // Optional additional data\n  if (add) {\n    add = utils.toArray(add, addEnc || 'hex');\n    this._update(add);\n  }\n\n  var temp = [];\n  while (temp.length < len) {\n    this.V = this._hmac().update(this.V).digest();\n    temp = temp.concat(this.V);\n  }\n\n  var res = temp.slice(0, len);\n  this._update(add);\n  this._reseed++;\n  return utils.encode(res, enc);\n};\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var nBits = -7\n  var i = isLE ? (nBytes - 1) : 0\n  var d = isLE ? -1 : 1\n  var s = buffer[offset + i]\n\n  i += d\n\n  e = s & ((1 << (-nBits)) - 1)\n  s >>= (-nBits)\n  nBits += eLen\n  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & ((1 << (-nBits)) - 1)\n  e >>= (-nBits)\n  nBits += mLen\n  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias\n  } else if (e === eMax) {\n    return m ? NaN : ((s ? -1 : 1) * Infinity)\n  } else {\n    m = m + Math.pow(2, mLen)\n    e = e - eBias\n  }\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n  var i = isLE ? 0 : (nBytes - 1)\n  var d = isLE ? 1 : -1\n  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n  value = Math.abs(value)\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0\n    e = eMax\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2)\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--\n      c *= 2\n    }\n    if (e + eBias >= 1) {\n      value += rt / c\n    } else {\n      value += rt * Math.pow(2, 1 - eBias)\n    }\n    if (value * c >= 2) {\n      e++\n      c /= 2\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0\n      e = eMax\n    } else if (e + eBias >= 1) {\n      m = ((value * c) - 1) * Math.pow(2, mLen)\n      e = e + eBias\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n      e = 0\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = (e << mLen) | m\n  eLen += mLen\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128\n}\n","if (typeof Object.create === 'function') {\n  // implementation from standard node.js 'util' module\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      ctor.prototype = Object.create(superCtor.prototype, {\n        constructor: {\n          value: ctor,\n          enumerable: false,\n          writable: true,\n          configurable: true\n        }\n      })\n    }\n  };\n} else {\n  // old school shim for old browsers\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      var TempCtor = function () {}\n      TempCtor.prototype = superCtor.prototype\n      ctor.prototype = new TempCtor()\n      ctor.prototype.constructor = ctor\n    }\n  }\n}\n","/*!\n * Determine if an object is a Buffer\n *\n * @author   Feross Aboukhadijeh <https://feross.org>\n * @license  MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n","'use strict'\nvar inherits = require('inherits')\nvar HashBase = require('hash-base')\nvar Buffer = require('safe-buffer').Buffer\n\nvar ARRAY16 = new Array(16)\n\nfunction MD5 () {\n  HashBase.call(this, 64)\n\n  // state\n  this._a = 0x67452301\n  this._b = 0xefcdab89\n  this._c = 0x98badcfe\n  this._d = 0x10325476\n}\n\ninherits(MD5, HashBase)\n\nMD5.prototype._update = function () {\n  var M = ARRAY16\n  for (var i = 0; i < 16; ++i) M[i] = this._block.readInt32LE(i * 4)\n\n  var a = this._a\n  var b = this._b\n  var c = this._c\n  var d = this._d\n\n  a = fnF(a, b, c, d, M[0], 0xd76aa478, 7)\n  d = fnF(d, a, b, c, M[1], 0xe8c7b756, 12)\n  c = fnF(c, d, a, b, M[2], 0x242070db, 17)\n  b = fnF(b, c, d, a, M[3], 0xc1bdceee, 22)\n  a = fnF(a, b, c, d, M[4], 0xf57c0faf, 7)\n  d = fnF(d, a, b, c, M[5], 0x4787c62a, 12)\n  c = fnF(c, d, a, b, M[6], 0xa8304613, 17)\n  b = fnF(b, c, d, a, M[7], 0xfd469501, 22)\n  a = fnF(a, b, c, d, M[8], 0x698098d8, 7)\n  d = fnF(d, a, b, c, M[9], 0x8b44f7af, 12)\n  c = fnF(c, d, a, b, M[10], 0xffff5bb1, 17)\n  b = fnF(b, c, d, a, M[11], 0x895cd7be, 22)\n  a = fnF(a, b, c, d, M[12], 0x6b901122, 7)\n  d = fnF(d, a, b, c, M[13], 0xfd987193, 12)\n  c = fnF(c, d, a, b, M[14], 0xa679438e, 17)\n  b = fnF(b, c, d, a, M[15], 0x49b40821, 22)\n\n  a = fnG(a, b, c, d, M[1], 0xf61e2562, 5)\n  d = fnG(d, a, b, c, M[6], 0xc040b340, 9)\n  c = fnG(c, d, a, b, M[11], 0x265e5a51, 14)\n  b = fnG(b, c, d, a, M[0], 0xe9b6c7aa, 20)\n  a = fnG(a, b, c, d, M[5], 0xd62f105d, 5)\n  d = fnG(d, a, b, c, M[10], 0x02441453, 9)\n  c = fnG(c, d, a, b, M[15], 0xd8a1e681, 14)\n  b = fnG(b, c, d, a, M[4], 0xe7d3fbc8, 20)\n  a = fnG(a, b, c, d, M[9], 0x21e1cde6, 5)\n  d = fnG(d, a, b, c, M[14], 0xc33707d6, 9)\n  c = fnG(c, d, a, b, M[3], 0xf4d50d87, 14)\n  b = fnG(b, c, d, a, M[8], 0x455a14ed, 20)\n  a = fnG(a, b, c, d, M[13], 0xa9e3e905, 5)\n  d = fnG(d, a, b, c, M[2], 0xfcefa3f8, 9)\n  c = fnG(c, d, a, b, M[7], 0x676f02d9, 14)\n  b = fnG(b, c, d, a, M[12], 0x8d2a4c8a, 20)\n\n  a = fnH(a, b, c, d, M[5], 0xfffa3942, 4)\n  d = fnH(d, a, b, c, M[8], 0x8771f681, 11)\n  c = fnH(c, d, a, b, M[11], 0x6d9d6122, 16)\n  b = fnH(b, c, d, a, M[14], 0xfde5380c, 23)\n  a = fnH(a, b, c, d, M[1], 0xa4beea44, 4)\n  d = fnH(d, a, b, c, M[4], 0x4bdecfa9, 11)\n  c = fnH(c, d, a, b, M[7], 0xf6bb4b60, 16)\n  b = fnH(b, c, d, a, M[10], 0xbebfbc70, 23)\n  a = fnH(a, b, c, d, M[13], 0x289b7ec6, 4)\n  d = fnH(d, a, b, c, M[0], 0xeaa127fa, 11)\n  c = fnH(c, d, a, b, M[3], 0xd4ef3085, 16)\n  b = fnH(b, c, d, a, M[6], 0x04881d05, 23)\n  a = fnH(a, b, c, d, M[9], 0xd9d4d039, 4)\n  d = fnH(d, a, b, c, M[12], 0xe6db99e5, 11)\n  c = fnH(c, d, a, b, M[15], 0x1fa27cf8, 16)\n  b = fnH(b, c, d, a, M[2], 0xc4ac5665, 23)\n\n  a = fnI(a, b, c, d, M[0], 0xf4292244, 6)\n  d = fnI(d, a, b, c, M[7], 0x432aff97, 10)\n  c = fnI(c, d, a, b, M[14], 0xab9423a7, 15)\n  b = fnI(b, c, d, a, M[5], 0xfc93a039, 21)\n  a = fnI(a, b, c, d, M[12], 0x655b59c3, 6)\n  d = fnI(d, a, b, c, M[3], 0x8f0ccc92, 10)\n  c = fnI(c, d, a, b, M[10], 0xffeff47d, 15)\n  b = fnI(b, c, d, a, M[1], 0x85845dd1, 21)\n  a = fnI(a, b, c, d, M[8], 0x6fa87e4f, 6)\n  d = fnI(d, a, b, c, M[15], 0xfe2ce6e0, 10)\n  c = fnI(c, d, a, b, M[6], 0xa3014314, 15)\n  b = fnI(b, c, d, a, M[13], 0x4e0811a1, 21)\n  a = fnI(a, b, c, d, M[4], 0xf7537e82, 6)\n  d = fnI(d, a, b, c, M[11], 0xbd3af235, 10)\n  c = fnI(c, d, a, b, M[2], 0x2ad7d2bb, 15)\n  b = fnI(b, c, d, a, M[9], 0xeb86d391, 21)\n\n  this._a = (this._a + a) | 0\n  this._b = (this._b + b) | 0\n  this._c = (this._c + c) | 0\n  this._d = (this._d + d) | 0\n}\n\nMD5.prototype._digest = function () {\n  // create padding and handle blocks\n  this._block[this._blockOffset++] = 0x80\n  if (this._blockOffset > 56) {\n    this._block.fill(0, this._blockOffset, 64)\n    this._update()\n    this._blockOffset = 0\n  }\n\n  this._block.fill(0, this._blockOffset, 56)\n  this._block.writeUInt32LE(this._length[0], 56)\n  this._block.writeUInt32LE(this._length[1], 60)\n  this._update()\n\n  // produce result\n  var buffer = Buffer.allocUnsafe(16)\n  buffer.writeInt32LE(this._a, 0)\n  buffer.writeInt32LE(this._b, 4)\n  buffer.writeInt32LE(this._c, 8)\n  buffer.writeInt32LE(this._d, 12)\n  return buffer\n}\n\nfunction rotl (x, n) {\n  return (x << n) | (x >>> (32 - n))\n}\n\nfunction fnF (a, b, c, d, m, k, s) {\n  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + b) | 0\n}\n\nfunction fnG (a, b, c, d, m, k, s) {\n  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + b) | 0\n}\n\nfunction fnH (a, b, c, d, m, k, s) {\n  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + b) | 0\n}\n\nfunction fnI (a, b, c, d, m, k, s) {\n  return (rotl((a + ((c ^ (b | (~d)))) + m + k) | 0, s) + b) | 0\n}\n\nmodule.exports = MD5\n","var bn = require('bn.js');\nvar brorand = require('brorand');\n\nfunction MillerRabin(rand) {\n  this.rand = rand || new brorand.Rand();\n}\nmodule.exports = MillerRabin;\n\nMillerRabin.create = function create(rand) {\n  return new MillerRabin(rand);\n};\n\nMillerRabin.prototype._randbelow = function _randbelow(n) {\n  var len = n.bitLength();\n  var min_bytes = Math.ceil(len / 8);\n\n  // Generage random bytes until a number less than n is found.\n  // This ensures that 0..n-1 have an equal probability of being selected.\n  do\n    var a = new bn(this.rand.generate(min_bytes));\n  while (a.cmp(n) >= 0);\n\n  return a;\n};\n\nMillerRabin.prototype._randrange = function _randrange(start, stop) {\n  // Generate a random number greater than or equal to start and less than stop.\n  var size = stop.sub(start);\n  return start.add(this._randbelow(size));\n};\n\nMillerRabin.prototype.test = function test(n, k, cb) {\n  var len = n.bitLength();\n  var red = bn.mont(n);\n  var rone = new bn(1).toRed(red);\n\n  if (!k)\n    k = Math.max(1, (len / 48) | 0);\n\n  // Find d and s, (n - 1) = (2 ^ s) * d;\n  var n1 = n.subn(1);\n  for (var s = 0; !n1.testn(s); s++) {}\n  var d = n.shrn(s);\n\n  var rn1 = n1.toRed(red);\n\n  var prime = true;\n  for (; k > 0; k--) {\n    var a = this._randrange(new bn(2), n1);\n    if (cb)\n      cb(a);\n\n    var x = a.toRed(red).redPow(d);\n    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)\n      continue;\n\n    for (var i = 1; i < s; i++) {\n      x = x.redSqr();\n\n      if (x.cmp(rone) === 0)\n        return false;\n      if (x.cmp(rn1) === 0)\n        break;\n    }\n\n    if (i === s)\n      return false;\n  }\n\n  return prime;\n};\n\nMillerRabin.prototype.getDivisor = function getDivisor(n, k) {\n  var len = n.bitLength();\n  var red = bn.mont(n);\n  var rone = new bn(1).toRed(red);\n\n  if (!k)\n    k = Math.max(1, (len / 48) | 0);\n\n  // Find d and s, (n - 1) = (2 ^ s) * d;\n  var n1 = n.subn(1);\n  for (var s = 0; !n1.testn(s); s++) {}\n  var d = n.shrn(s);\n\n  var rn1 = n1.toRed(red);\n\n  for (; k > 0; k--) {\n    var a = this._randrange(new bn(2), n1);\n\n    var g = n.gcd(a);\n    if (g.cmpn(1) !== 0)\n      return g;\n\n    var x = a.toRed(red).redPow(d);\n    if (x.cmp(rone) === 0 || x.cmp(rn1) === 0)\n      continue;\n\n    for (var i = 1; i < s; i++) {\n      x = x.redSqr();\n\n      if (x.cmp(rone) === 0)\n        return x.fromRed().subn(1).gcd(n);\n      if (x.cmp(rn1) === 0)\n        break;\n    }\n\n    if (i === s) {\n      x = x.redSqr();\n      return x.fromRed().subn(1).gcd(n);\n    }\n  }\n\n  return false;\n};\n","module.exports = assert;\n\nfunction assert(val, msg) {\n  if (!val)\n    throw new Error(msg || 'Assertion failed');\n}\n\nassert.equal = function assertEqual(l, r, msg) {\n  if (l != r)\n    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));\n};\n","'use strict';\n\nvar utils = exports;\n\nfunction toArray(msg, enc) {\n  if (Array.isArray(msg))\n    return msg.slice();\n  if (!msg)\n    return [];\n  var res = [];\n  if (typeof msg !== 'string') {\n    for (var i = 0; i < msg.length; i++)\n      res[i] = msg[i] | 0;\n    return res;\n  }\n  if (enc === 'hex') {\n    msg = msg.replace(/[^a-z0-9]+/ig, '');\n    if (msg.length % 2 !== 0)\n      msg = '0' + msg;\n    for (var i = 0; i < msg.length; i += 2)\n      res.push(parseInt(msg[i] + msg[i + 1], 16));\n  } else {\n    for (var i = 0; i < msg.length; i++) {\n      var c = msg.charCodeAt(i);\n      var hi = c >> 8;\n      var lo = c & 0xff;\n      if (hi)\n        res.push(hi, lo);\n      else\n        res.push(lo);\n    }\n  }\n  return res;\n}\nutils.toArray = toArray;\n\nfunction zero2(word) {\n  if (word.length === 1)\n    return '0' + word;\n  else\n    return word;\n}\nutils.zero2 = zero2;\n\nfunction toHex(msg) {\n  var res = '';\n  for (var i = 0; i < msg.length; i++)\n    res += zero2(msg[i].toString(16));\n  return res;\n}\nutils.toHex = toHex;\n\nutils.encode = function encode(arr, enc) {\n  if (enc === 'hex')\n    return toHex(arr);\n  else\n    return arr;\n};\n","module.exports={\"2.16.840.1.101.3.4.1.1\": \"aes-128-ecb\",\n\"2.16.840.1.101.3.4.1.2\": \"aes-128-cbc\",\n\"2.16.840.1.101.3.4.1.3\": \"aes-128-ofb\",\n\"2.16.840.1.101.3.4.1.4\": \"aes-128-cfb\",\n\"2.16.840.1.101.3.4.1.21\": \"aes-192-ecb\",\n\"2.16.840.1.101.3.4.1.22\": \"aes-192-cbc\",\n\"2.16.840.1.101.3.4.1.23\": \"aes-192-ofb\",\n\"2.16.840.1.101.3.4.1.24\": \"aes-192-cfb\",\n\"2.16.840.1.101.3.4.1.41\": \"aes-256-ecb\",\n\"2.16.840.1.101.3.4.1.42\": \"aes-256-cbc\",\n\"2.16.840.1.101.3.4.1.43\": \"aes-256-ofb\",\n\"2.16.840.1.101.3.4.1.44\": \"aes-256-cfb\"\n}","// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js\n// Fedor, you are amazing.\n'use strict'\n\nvar asn1 = require('asn1.js')\n\nexports.certificate = require('./certificate')\n\nvar RSAPrivateKey = asn1.define('RSAPrivateKey', function () {\n  this.seq().obj(\n    this.key('version').int(),\n    this.key('modulus').int(),\n    this.key('publicExponent').int(),\n    this.key('privateExponent').int(),\n    this.key('prime1').int(),\n    this.key('prime2').int(),\n    this.key('exponent1').int(),\n    this.key('exponent2').int(),\n    this.key('coefficient').int()\n  )\n})\nexports.RSAPrivateKey = RSAPrivateKey\n\nvar RSAPublicKey = asn1.define('RSAPublicKey', function () {\n  this.seq().obj(\n    this.key('modulus').int(),\n    this.key('publicExponent').int()\n  )\n})\nexports.RSAPublicKey = RSAPublicKey\n\nvar PublicKey = asn1.define('SubjectPublicKeyInfo', function () {\n  this.seq().obj(\n    this.key('algorithm').use(AlgorithmIdentifier),\n    this.key('subjectPublicKey').bitstr()\n  )\n})\nexports.PublicKey = PublicKey\n\nvar AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () {\n  this.seq().obj(\n    this.key('algorithm').objid(),\n    this.key('none').null_().optional(),\n    this.key('curve').objid().optional(),\n    this.key('params').seq().obj(\n      this.key('p').int(),\n      this.key('q').int(),\n      this.key('g').int()\n    ).optional()\n  )\n})\n\nvar PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () {\n  this.seq().obj(\n    this.key('version').int(),\n    this.key('algorithm').use(AlgorithmIdentifier),\n    this.key('subjectPrivateKey').octstr()\n  )\n})\nexports.PrivateKey = PrivateKeyInfo\nvar EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () {\n  this.seq().obj(\n    this.key('algorithm').seq().obj(\n      this.key('id').objid(),\n      this.key('decrypt').seq().obj(\n        this.key('kde').seq().obj(\n          this.key('id').objid(),\n          this.key('kdeparams').seq().obj(\n            this.key('salt').octstr(),\n            this.key('iters').int()\n          )\n        ),\n        this.key('cipher').seq().obj(\n          this.key('algo').objid(),\n          this.key('iv').octstr()\n        )\n      )\n    ),\n    this.key('subjectPrivateKey').octstr()\n  )\n})\n\nexports.EncryptedPrivateKey = EncryptedPrivateKeyInfo\n\nvar DSAPrivateKey = asn1.define('DSAPrivateKey', function () {\n  this.seq().obj(\n    this.key('version').int(),\n    this.key('p').int(),\n    this.key('q').int(),\n    this.key('g').int(),\n    this.key('pub_key').int(),\n    this.key('priv_key').int()\n  )\n})\nexports.DSAPrivateKey = DSAPrivateKey\n\nexports.DSAparam = asn1.define('DSAparam', function () {\n  this.int()\n})\n\nvar ECPrivateKey = asn1.define('ECPrivateKey', function () {\n  this.seq().obj(\n    this.key('version').int(),\n    this.key('privateKey').octstr(),\n    this.key('parameters').optional().explicit(0).use(ECParameters),\n    this.key('publicKey').optional().explicit(1).bitstr()\n  )\n})\nexports.ECPrivateKey = ECPrivateKey\n\nvar ECParameters = asn1.define('ECParameters', function () {\n  this.choice({\n    namedCurve: this.objid()\n  })\n})\n\nexports.signature = asn1.define('signature', function () {\n  this.seq().obj(\n    this.key('r').int(),\n    this.key('s').int()\n  )\n})\n","// from https://github.com/Rantanen/node-dtls/blob/25a7dc861bda38cfeac93a723500eea4f0ac2e86/Certificate.js\n// thanks to @Rantanen\n\n'use strict'\n\nvar asn = require('asn1.js')\n\nvar Time = asn.define('Time', function () {\n  this.choice({\n    utcTime: this.utctime(),\n    generalTime: this.gentime()\n  })\n})\n\nvar AttributeTypeValue = asn.define('AttributeTypeValue', function () {\n  this.seq().obj(\n    this.key('type').objid(),\n    this.key('value').any()\n  )\n})\n\nvar AlgorithmIdentifier = asn.define('AlgorithmIdentifier', function () {\n  this.seq().obj(\n    this.key('algorithm').objid(),\n    this.key('parameters').optional(),\n    this.key('curve').objid().optional()\n  )\n})\n\nvar SubjectPublicKeyInfo = asn.define('SubjectPublicKeyInfo', function () {\n  this.seq().obj(\n    this.key('algorithm').use(AlgorithmIdentifier),\n    this.key('subjectPublicKey').bitstr()\n  )\n})\n\nvar RelativeDistinguishedName = asn.define('RelativeDistinguishedName', function () {\n  this.setof(AttributeTypeValue)\n})\n\nvar RDNSequence = asn.define('RDNSequence', function () {\n  this.seqof(RelativeDistinguishedName)\n})\n\nvar Name = asn.define('Name', function () {\n  this.choice({\n    rdnSequence: this.use(RDNSequence)\n  })\n})\n\nvar Validity = asn.define('Validity', function () {\n  this.seq().obj(\n    this.key('notBefore').use(Time),\n    this.key('notAfter').use(Time)\n  )\n})\n\nvar Extension = asn.define('Extension', function () {\n  this.seq().obj(\n    this.key('extnID').objid(),\n    this.key('critical').bool().def(false),\n    this.key('extnValue').octstr()\n  )\n})\n\nvar TBSCertificate = asn.define('TBSCertificate', function () {\n  this.seq().obj(\n    this.key('version').explicit(0).int().optional(),\n    this.key('serialNumber').int(),\n    this.key('signature').use(AlgorithmIdentifier),\n    this.key('issuer').use(Name),\n    this.key('validity').use(Validity),\n    this.key('subject').use(Name),\n    this.key('subjectPublicKeyInfo').use(SubjectPublicKeyInfo),\n    this.key('issuerUniqueID').implicit(1).bitstr().optional(),\n    this.key('subjectUniqueID').implicit(2).bitstr().optional(),\n    this.key('extensions').explicit(3).seqof(Extension).optional()\n  )\n})\n\nvar X509Certificate = asn.define('X509Certificate', function () {\n  this.seq().obj(\n    this.key('tbsCertificate').use(TBSCertificate),\n    this.key('signatureAlgorithm').use(AlgorithmIdentifier),\n    this.key('signatureValue').bitstr()\n  )\n})\n\nmodule.exports = X509Certificate\n","// adapted from https://github.com/apatil/pemstrip\nvar findProc = /Proc-Type: 4,ENCRYPTED[\\n\\r]+DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)[\\n\\r]+([0-9A-z\\n\\r\\+\\/\\=]+)[\\n\\r]+/m\nvar startRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----/m\nvar fullRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----([0-9A-z\\n\\r\\+\\/\\=]+)-----END \\1-----$/m\nvar evp = require('evp_bytestokey')\nvar ciphers = require('browserify-aes')\nvar Buffer = require('safe-buffer').Buffer\nmodule.exports = function (okey, password) {\n  var key = okey.toString()\n  var match = key.match(findProc)\n  var decrypted\n  if (!match) {\n    var match2 = key.match(fullRegex)\n    decrypted = new Buffer(match2[2].replace(/[\\r\\n]/g, ''), 'base64')\n  } else {\n    var suite = 'aes' + match[1]\n    var iv = Buffer.from(match[2], 'hex')\n    var cipherText = Buffer.from(match[3].replace(/[\\r\\n]/g, ''), 'base64')\n    var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key\n    var out = []\n    var cipher = ciphers.createDecipheriv(suite, cipherKey, iv)\n    out.push(cipher.update(cipherText))\n    out.push(cipher.final())\n    decrypted = Buffer.concat(out)\n  }\n  var tag = key.match(startRegex)[1]\n  return {\n    tag: tag,\n    data: decrypted\n  }\n}\n","var asn1 = require('./asn1')\nvar aesid = require('./aesid.json')\nvar fixProc = require('./fixProc')\nvar ciphers = require('browserify-aes')\nvar compat = require('pbkdf2')\nvar Buffer = require('safe-buffer').Buffer\nmodule.exports = parseKeys\n\nfunction parseKeys (buffer) {\n  var password\n  if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) {\n    password = buffer.passphrase\n    buffer = buffer.key\n  }\n  if (typeof buffer === 'string') {\n    buffer = Buffer.from(buffer)\n  }\n\n  var stripped = fixProc(buffer, password)\n\n  var type = stripped.tag\n  var data = stripped.data\n  var subtype, ndata\n  switch (type) {\n    case 'CERTIFICATE':\n      ndata = asn1.certificate.decode(data, 'der').tbsCertificate.subjectPublicKeyInfo\n      // falls through\n    case 'PUBLIC KEY':\n      if (!ndata) {\n        ndata = asn1.PublicKey.decode(data, 'der')\n      }\n      subtype = ndata.algorithm.algorithm.join('.')\n      switch (subtype) {\n        case '1.2.840.113549.1.1.1':\n          return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der')\n        case '1.2.840.10045.2.1':\n          ndata.subjectPrivateKey = ndata.subjectPublicKey\n          return {\n            type: 'ec',\n            data: ndata\n          }\n        case '1.2.840.10040.4.1':\n          ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der')\n          return {\n            type: 'dsa',\n            data: ndata.algorithm.params\n          }\n        default: throw new Error('unknown key id ' + subtype)\n      }\n      throw new Error('unknown key type ' + type)\n    case 'ENCRYPTED PRIVATE KEY':\n      data = asn1.EncryptedPrivateKey.decode(data, 'der')\n      data = decrypt(data, password)\n      // falls through\n    case 'PRIVATE KEY':\n      ndata = asn1.PrivateKey.decode(data, 'der')\n      subtype = ndata.algorithm.algorithm.join('.')\n      switch (subtype) {\n        case '1.2.840.113549.1.1.1':\n          return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der')\n        case '1.2.840.10045.2.1':\n          return {\n            curve: ndata.algorithm.curve,\n            privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey\n          }\n        case '1.2.840.10040.4.1':\n          ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der')\n          return {\n            type: 'dsa',\n            params: ndata.algorithm.params\n          }\n        default: throw new Error('unknown key id ' + subtype)\n      }\n      throw new Error('unknown key type ' + type)\n    case 'RSA PUBLIC KEY':\n      return asn1.RSAPublicKey.decode(data, 'der')\n    case 'RSA PRIVATE KEY':\n      return asn1.RSAPrivateKey.decode(data, 'der')\n    case 'DSA PRIVATE KEY':\n      return {\n        type: 'dsa',\n        params: asn1.DSAPrivateKey.decode(data, 'der')\n      }\n    case 'EC PRIVATE KEY':\n      data = asn1.ECPrivateKey.decode(data, 'der')\n      return {\n        curve: data.parameters.value,\n        privateKey: data.privateKey\n      }\n    default: throw new Error('unknown key type ' + type)\n  }\n}\nparseKeys.signature = asn1.signature\nfunction decrypt (data, password) {\n  var salt = data.algorithm.decrypt.kde.kdeparams.salt\n  var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10)\n  var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')]\n  var iv = data.algorithm.decrypt.cipher.iv\n  var cipherText = data.subjectPrivateKey\n  var keylen = parseInt(algo.split('-')[1], 10) / 8\n  var key = compat.pbkdf2Sync(password, salt, iters, keylen, 'sha1')\n  var cipher = ciphers.createDecipheriv(algo, key, iv)\n  var out = []\n  out.push(cipher.update(cipherText))\n  out.push(cipher.final())\n  return Buffer.concat(out)\n}\n","exports.pbkdf2 = require('./lib/async')\nexports.pbkdf2Sync = require('./lib/sync')\n","var checkParameters = require('./precondition')\nvar defaultEncoding = require('./default-encoding')\nvar sync = require('./sync')\nvar Buffer = require('safe-buffer').Buffer\n\nvar ZERO_BUF\nvar subtle = global.crypto && global.crypto.subtle\nvar toBrowser = {\n  'sha': 'SHA-1',\n  'sha-1': 'SHA-1',\n  'sha1': 'SHA-1',\n  'sha256': 'SHA-256',\n  'sha-256': 'SHA-256',\n  'sha384': 'SHA-384',\n  'sha-384': 'SHA-384',\n  'sha-512': 'SHA-512',\n  'sha512': 'SHA-512'\n}\nvar checks = []\nfunction checkNative (algo) {\n  if (global.process && !global.process.browser) {\n    return Promise.resolve(false)\n  }\n  if (!subtle || !subtle.importKey || !subtle.deriveBits) {\n    return Promise.resolve(false)\n  }\n  if (checks[algo] !== undefined) {\n    return checks[algo]\n  }\n  ZERO_BUF = ZERO_BUF || Buffer.alloc(8)\n  var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo)\n    .then(function () {\n      return true\n    }).catch(function () {\n      return false\n    })\n  checks[algo] = prom\n  return prom\n}\n\nfunction browserPbkdf2 (password, salt, iterations, length, algo) {\n  return subtle.importKey(\n    'raw', password, {name: 'PBKDF2'}, false, ['deriveBits']\n  ).then(function (key) {\n    return subtle.deriveBits({\n      name: 'PBKDF2',\n      salt: salt,\n      iterations: iterations,\n      hash: {\n        name: algo\n      }\n    }, key, length << 3)\n  }).then(function (res) {\n    return Buffer.from(res)\n  })\n}\n\nfunction resolvePromise (promise, callback) {\n  promise.then(function (out) {\n    process.nextTick(function () {\n      callback(null, out)\n    })\n  }, function (e) {\n    process.nextTick(function () {\n      callback(e)\n    })\n  })\n}\nmodule.exports = function (password, salt, iterations, keylen, digest, callback) {\n  if (typeof digest === 'function') {\n    callback = digest\n    digest = undefined\n  }\n\n  digest = digest || 'sha1'\n  var algo = toBrowser[digest.toLowerCase()]\n\n  if (!algo || typeof global.Promise !== 'function') {\n    return process.nextTick(function () {\n      var out\n      try {\n        out = sync(password, salt, iterations, keylen, digest)\n      } catch (e) {\n        return callback(e)\n      }\n      callback(null, out)\n    })\n  }\n\n  checkParameters(password, salt, iterations, keylen)\n  if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2')\n  if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)\n  if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)\n\n  resolvePromise(checkNative(algo).then(function (resp) {\n    if (resp) return browserPbkdf2(password, salt, iterations, keylen, algo)\n\n    return sync(password, salt, iterations, keylen, digest)\n  }), callback)\n}\n","var defaultEncoding\n/* istanbul ignore next */\nif (process.browser) {\n  defaultEncoding = 'utf-8'\n} else {\n  var pVersionMajor = parseInt(process.version.split('.')[0].slice(1), 10)\n\n  defaultEncoding = pVersionMajor >= 6 ? 'utf-8' : 'binary'\n}\nmodule.exports = defaultEncoding\n","var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs\n\nfunction checkBuffer (buf, name) {\n  if (typeof buf !== 'string' && !Buffer.isBuffer(buf)) {\n    throw new TypeError(name + ' must be a buffer or string')\n  }\n}\n\nmodule.exports = function (password, salt, iterations, keylen) {\n  checkBuffer(password, 'Password')\n  checkBuffer(salt, 'Salt')\n\n  if (typeof iterations !== 'number') {\n    throw new TypeError('Iterations not a number')\n  }\n\n  if (iterations < 0) {\n    throw new TypeError('Bad iterations')\n  }\n\n  if (typeof keylen !== 'number') {\n    throw new TypeError('Key length not a number')\n  }\n\n  if (keylen < 0 || keylen > MAX_ALLOC || keylen !== keylen) { /* eslint no-self-compare: 0 */\n    throw new TypeError('Bad key length')\n  }\n}\n","var md5 = require('create-hash/md5')\nvar RIPEMD160 = require('ripemd160')\nvar sha = require('sha.js')\n\nvar checkParameters = require('./precondition')\nvar defaultEncoding = require('./default-encoding')\nvar Buffer = require('safe-buffer').Buffer\nvar ZEROS = Buffer.alloc(128)\nvar sizes = {\n  md5: 16,\n  sha1: 20,\n  sha224: 28,\n  sha256: 32,\n  sha384: 48,\n  sha512: 64,\n  rmd160: 20,\n  ripemd160: 20\n}\n\nfunction Hmac (alg, key, saltLen) {\n  var hash = getDigest(alg)\n  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64\n\n  if (key.length > blocksize) {\n    key = hash(key)\n  } else if (key.length < blocksize) {\n    key = Buffer.concat([key, ZEROS], blocksize)\n  }\n\n  var ipad = Buffer.allocUnsafe(blocksize + sizes[alg])\n  var opad = Buffer.allocUnsafe(blocksize + sizes[alg])\n  for (var i = 0; i < blocksize; i++) {\n    ipad[i] = key[i] ^ 0x36\n    opad[i] = key[i] ^ 0x5C\n  }\n\n  var ipad1 = Buffer.allocUnsafe(blocksize + saltLen + 4)\n  ipad.copy(ipad1, 0, 0, blocksize)\n  this.ipad1 = ipad1\n  this.ipad2 = ipad\n  this.opad = opad\n  this.alg = alg\n  this.blocksize = blocksize\n  this.hash = hash\n  this.size = sizes[alg]\n}\n\nHmac.prototype.run = function (data, ipad) {\n  data.copy(ipad, this.blocksize)\n  var h = this.hash(ipad)\n  h.copy(this.opad, this.blocksize)\n  return this.hash(this.opad)\n}\n\nfunction getDigest (alg) {\n  function shaFunc (data) {\n    return sha(alg).update(data).digest()\n  }\n  function rmd160Func (data) {\n    return new RIPEMD160().update(data).digest()\n  }\n\n  if (alg === 'rmd160' || alg === 'ripemd160') return rmd160Func\n  if (alg === 'md5') return md5\n  return shaFunc\n}\n\nfunction pbkdf2 (password, salt, iterations, keylen, digest) {\n  checkParameters(password, salt, iterations, keylen)\n\n  if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding)\n  if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding)\n\n  digest = digest || 'sha1'\n\n  var hmac = new Hmac(digest, password, salt.length)\n\n  var DK = Buffer.allocUnsafe(keylen)\n  var block1 = Buffer.allocUnsafe(salt.length + 4)\n  salt.copy(block1, 0, 0, salt.length)\n\n  var destPos = 0\n  var hLen = sizes[digest]\n  var l = Math.ceil(keylen / hLen)\n\n  for (var i = 1; i <= l; i++) {\n    block1.writeUInt32BE(i, salt.length)\n\n    var T = hmac.run(block1, hmac.ipad1)\n    var U = T\n\n    for (var j = 1; j < iterations; j++) {\n      U = hmac.run(U, hmac.ipad2)\n      for (var k = 0; k < hLen; k++) T[k] ^= U[k]\n    }\n\n    T.copy(DK, destPos)\n    destPos += hLen\n  }\n\n  return DK\n}\n\nmodule.exports = pbkdf2\n","'use strict';\n\nif (typeof process === 'undefined' ||\n    !process.version ||\n    process.version.indexOf('v0.') === 0 ||\n    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {\n  module.exports = { nextTick: nextTick };\n} else {\n  module.exports = process\n}\n\nfunction nextTick(fn, arg1, arg2, arg3) {\n  if (typeof fn !== 'function') {\n    throw new TypeError('\"callback\" argument must be a function');\n  }\n  var len = arguments.length;\n  var args, i;\n  switch (len) {\n  case 0:\n  case 1:\n    return process.nextTick(fn);\n  case 2:\n    return process.nextTick(function afterTickOne() {\n      fn.call(null, arg1);\n    });\n  case 3:\n    return process.nextTick(function afterTickTwo() {\n      fn.call(null, arg1, arg2);\n    });\n  case 4:\n    return process.nextTick(function afterTickThree() {\n      fn.call(null, arg1, arg2, arg3);\n    });\n  default:\n    args = new Array(len - 1);\n    i = 0;\n    while (i < args.length) {\n      args[i++] = arguments[i];\n    }\n    return process.nextTick(function afterTick() {\n      fn.apply(null, args);\n    });\n  }\n}\n\n","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n    throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n    throw new Error('clearTimeout has not been defined');\n}\n(function () {\n    try {\n        if (typeof setTimeout === 'function') {\n            cachedSetTimeout = setTimeout;\n        } else {\n            cachedSetTimeout = defaultSetTimout;\n        }\n    } catch (e) {\n        cachedSetTimeout = defaultSetTimout;\n    }\n    try {\n        if (typeof clearTimeout === 'function') {\n            cachedClearTimeout = clearTimeout;\n        } else {\n            cachedClearTimeout = defaultClearTimeout;\n        }\n    } catch (e) {\n        cachedClearTimeout = defaultClearTimeout;\n    }\n} ())\nfunction runTimeout(fun) {\n    if (cachedSetTimeout === setTimeout) {\n        //normal enviroments in sane situations\n        return setTimeout(fun, 0);\n    }\n    // if setTimeout wasn't available but was latter defined\n    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n        cachedSetTimeout = setTimeout;\n        return setTimeout(fun, 0);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedSetTimeout(fun, 0);\n    } catch(e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n            return cachedSetTimeout.call(null, fun, 0);\n        } catch(e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n            return cachedSetTimeout.call(this, fun, 0);\n        }\n    }\n\n\n}\nfunction runClearTimeout(marker) {\n    if (cachedClearTimeout === clearTimeout) {\n        //normal enviroments in sane situations\n        return clearTimeout(marker);\n    }\n    // if clearTimeout wasn't available but was latter defined\n    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n        cachedClearTimeout = clearTimeout;\n        return clearTimeout(marker);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedClearTimeout(marker);\n    } catch (e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n            return cachedClearTimeout.call(null, marker);\n        } catch (e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n            return cachedClearTimeout.call(this, marker);\n        }\n    }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n    if (!draining || !currentQueue) {\n        return;\n    }\n    draining = false;\n    if (currentQueue.length) {\n        queue = currentQueue.concat(queue);\n    } else {\n        queueIndex = -1;\n    }\n    if (queue.length) {\n        drainQueue();\n    }\n}\n\nfunction drainQueue() {\n    if (draining) {\n        return;\n    }\n    var timeout = runTimeout(cleanUpNextTick);\n    draining = true;\n\n    var len = queue.length;\n    while(len) {\n        currentQueue = queue;\n        queue = [];\n        while (++queueIndex < len) {\n            if (currentQueue) {\n                currentQueue[queueIndex].run();\n            }\n        }\n        queueIndex = -1;\n        len = queue.length;\n    }\n    currentQueue = null;\n    draining = false;\n    runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n    var args = new Array(arguments.length - 1);\n    if (arguments.length > 1) {\n        for (var i = 1; i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n","'use strict'\n\nvar messageIds = 0\n\nfunction onMessage (self, e) {\n  var message = e.data\n  if (!Array.isArray(message) || message.length < 2) {\n    // Ignore - this message is not for us.\n    return\n  }\n  var messageId = message[0]\n  var error = message[1]\n  var result = message[2]\n\n  var callback = self._callbacks[messageId]\n\n  if (!callback) {\n    // Ignore - user might have created multiple PromiseWorkers.\n    // This message is not for us.\n    return\n  }\n\n  delete self._callbacks[messageId]\n  callback(error, result)\n}\n\nfunction PromiseWorker (worker) {\n  var self = this\n  self._worker = worker\n  self._callbacks = {}\n\n  worker.addEventListener('message', function (e) {\n    onMessage(self, e)\n  })\n}\n\nPromiseWorker.prototype.postMessage = function (userMessage) {\n  var self = this\n  var messageId = messageIds++\n\n  var messageToSend = [messageId, userMessage]\n\n  return new Promise(function (resolve, reject) {\n    self._callbacks[messageId] = function (error, result) {\n      if (error) {\n        return reject(new Error(error.message))\n      }\n      resolve(result)\n    }\n\n    /* istanbul ignore if */\n    if (typeof self._worker.controller !== 'undefined') {\n      // service worker, use MessageChannels because e.source is broken in Chrome < 51:\n      // https://bugs.chromium.org/p/chromium/issues/detail?id=543198\n      var channel = new MessageChannel()\n      channel.port1.onmessage = function (e) {\n        onMessage(self, e)\n      }\n      self._worker.controller.postMessage(messageToSend, [channel.port2])\n    } else {\n      // web worker\n      self._worker.postMessage(messageToSend)\n    }\n  })\n}\n\nmodule.exports = PromiseWorker\n","exports.publicEncrypt = require('./publicEncrypt')\nexports.privateDecrypt = require('./privateDecrypt')\n\nexports.privateEncrypt = function privateEncrypt (key, buf) {\n  return exports.publicEncrypt(key, buf, true)\n}\n\nexports.publicDecrypt = function publicDecrypt (key, buf) {\n  return exports.privateDecrypt(key, buf, true)\n}\n","var createHash = require('create-hash')\nvar Buffer = require('safe-buffer').Buffer\n\nmodule.exports = function (seed, len) {\n  var t = Buffer.alloc(0)\n  var i = 0\n  var c\n  while (t.length < len) {\n    c = i2ops(i++)\n    t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()])\n  }\n  return t.slice(0, len)\n}\n\nfunction i2ops (c) {\n  var out = Buffer.allocUnsafe(4)\n  out.writeUInt32BE(c, 0)\n  return out\n}\n","var parseKeys = require('parse-asn1')\nvar mgf = require('./mgf')\nvar xor = require('./xor')\nvar BN = require('bn.js')\nvar crt = require('browserify-rsa')\nvar createHash = require('create-hash')\nvar withPublic = require('./withPublic')\nvar Buffer = require('safe-buffer').Buffer\n\nmodule.exports = function privateDecrypt (privateKey, enc, reverse) {\n  var padding\n  if (privateKey.padding) {\n    padding = privateKey.padding\n  } else if (reverse) {\n    padding = 1\n  } else {\n    padding = 4\n  }\n\n  var key = parseKeys(privateKey)\n  var k = key.modulus.byteLength()\n  if (enc.length > k || new BN(enc).cmp(key.modulus) >= 0) {\n    throw new Error('decryption error')\n  }\n  var msg\n  if (reverse) {\n    msg = withPublic(new BN(enc), key)\n  } else {\n    msg = crt(enc, key)\n  }\n  var zBuffer = Buffer.alloc(k - msg.length)\n  msg = Buffer.concat([zBuffer, msg], k)\n  if (padding === 4) {\n    return oaep(key, msg)\n  } else if (padding === 1) {\n    return pkcs1(key, msg, reverse)\n  } else if (padding === 3) {\n    return msg\n  } else {\n    throw new Error('unknown padding')\n  }\n}\n\nfunction oaep (key, msg) {\n  var k = key.modulus.byteLength()\n  var iHash = createHash('sha1').update(Buffer.alloc(0)).digest()\n  var hLen = iHash.length\n  if (msg[0] !== 0) {\n    throw new Error('decryption error')\n  }\n  var maskedSeed = msg.slice(1, hLen + 1)\n  var maskedDb = msg.slice(hLen + 1)\n  var seed = xor(maskedSeed, mgf(maskedDb, hLen))\n  var db = xor(maskedDb, mgf(seed, k - hLen - 1))\n  if (compare(iHash, db.slice(0, hLen))) {\n    throw new Error('decryption error')\n  }\n  var i = hLen\n  while (db[i] === 0) {\n    i++\n  }\n  if (db[i++] !== 1) {\n    throw new Error('decryption error')\n  }\n  return db.slice(i)\n}\n\nfunction pkcs1 (key, msg, reverse) {\n  var p1 = msg.slice(0, 2)\n  var i = 2\n  var status = 0\n  while (msg[i++] !== 0) {\n    if (i >= msg.length) {\n      status++\n      break\n    }\n  }\n  var ps = msg.slice(2, i - 1)\n\n  if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)) {\n    status++\n  }\n  if (ps.length < 8) {\n    status++\n  }\n  if (status) {\n    throw new Error('decryption error')\n  }\n  return msg.slice(i)\n}\nfunction compare (a, b) {\n  a = Buffer.from(a)\n  b = Buffer.from(b)\n  var dif = 0\n  var len = a.length\n  if (a.length !== b.length) {\n    dif++\n    len = Math.min(a.length, b.length)\n  }\n  var i = -1\n  while (++i < len) {\n    dif += (a[i] ^ b[i])\n  }\n  return dif\n}\n","var parseKeys = require('parse-asn1')\nvar randomBytes = require('randombytes')\nvar createHash = require('create-hash')\nvar mgf = require('./mgf')\nvar xor = require('./xor')\nvar BN = require('bn.js')\nvar withPublic = require('./withPublic')\nvar crt = require('browserify-rsa')\nvar Buffer = require('safe-buffer').Buffer\n\nmodule.exports = function publicEncrypt (publicKey, msg, reverse) {\n  var padding\n  if (publicKey.padding) {\n    padding = publicKey.padding\n  } else if (reverse) {\n    padding = 1\n  } else {\n    padding = 4\n  }\n  var key = parseKeys(publicKey)\n  var paddedMsg\n  if (padding === 4) {\n    paddedMsg = oaep(key, msg)\n  } else if (padding === 1) {\n    paddedMsg = pkcs1(key, msg, reverse)\n  } else if (padding === 3) {\n    paddedMsg = new BN(msg)\n    if (paddedMsg.cmp(key.modulus) >= 0) {\n      throw new Error('data too long for modulus')\n    }\n  } else {\n    throw new Error('unknown padding')\n  }\n  if (reverse) {\n    return crt(paddedMsg, key)\n  } else {\n    return withPublic(paddedMsg, key)\n  }\n}\n\nfunction oaep (key, msg) {\n  var k = key.modulus.byteLength()\n  var mLen = msg.length\n  var iHash = createHash('sha1').update(Buffer.alloc(0)).digest()\n  var hLen = iHash.length\n  var hLen2 = 2 * hLen\n  if (mLen > k - hLen2 - 2) {\n    throw new Error('message too long')\n  }\n  var ps = Buffer.alloc(k - mLen - hLen2 - 2)\n  var dblen = k - hLen - 1\n  var seed = randomBytes(hLen)\n  var maskedDb = xor(Buffer.concat([iHash, ps, Buffer.alloc(1, 1), msg], dblen), mgf(seed, dblen))\n  var maskedSeed = xor(seed, mgf(maskedDb, hLen))\n  return new BN(Buffer.concat([Buffer.alloc(1), maskedSeed, maskedDb], k))\n}\nfunction pkcs1 (key, msg, reverse) {\n  var mLen = msg.length\n  var k = key.modulus.byteLength()\n  if (mLen > k - 11) {\n    throw new Error('message too long')\n  }\n  var ps\n  if (reverse) {\n    ps = Buffer.alloc(k - mLen - 3, 0xff)\n  } else {\n    ps = nonZero(k - mLen - 3)\n  }\n  return new BN(Buffer.concat([Buffer.from([0, reverse ? 1 : 2]), ps, Buffer.alloc(1), msg], k))\n}\nfunction nonZero (len) {\n  var out = Buffer.allocUnsafe(len)\n  var i = 0\n  var cache = randomBytes(len * 2)\n  var cur = 0\n  var num\n  while (i < len) {\n    if (cur === cache.length) {\n      cache = randomBytes(len * 2)\n      cur = 0\n    }\n    num = cache[cur++]\n    if (num) {\n      out[i++] = num\n    }\n  }\n  return out\n}\n","var BN = require('bn.js')\nvar Buffer = require('safe-buffer').Buffer\n\nfunction withPublic (paddedMsg, key) {\n  return Buffer.from(paddedMsg\n    .toRed(BN.mont(key.modulus))\n    .redPow(new BN(key.publicExponent))\n    .fromRed()\n    .toArray())\n}\n\nmodule.exports = withPublic\n","module.exports = function xor (a, b) {\n  var len = a.length\n  var i = -1\n  while (++i < len) {\n    a[i] ^= b[i]\n  }\n  return a\n}\n","'use strict'\n\n// limit of Crypto.getRandomValues()\n// https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues\nvar MAX_BYTES = 65536\n\n// Node supports requesting up to this number of bytes\n// https://github.com/nodejs/node/blob/master/lib/internal/crypto/random.js#L48\nvar MAX_UINT32 = 4294967295\n\nfunction oldBrowser () {\n  throw new Error('Secure random number generation is not supported by this browser.\\nUse Chrome, Firefox or Internet Explorer 11')\n}\n\nvar Buffer = require('safe-buffer').Buffer\nvar crypto = global.crypto || global.msCrypto\n\nif (crypto && crypto.getRandomValues) {\n  module.exports = randomBytes\n} else {\n  module.exports = oldBrowser\n}\n\nfunction randomBytes (size, cb) {\n  // phantomjs needs to throw\n  if (size > MAX_UINT32) throw new RangeError('requested too many random bytes')\n\n  var bytes = Buffer.allocUnsafe(size)\n\n  if (size > 0) {  // getRandomValues fails on IE if size == 0\n    if (size > MAX_BYTES) { // this is the max bytes crypto.getRandomValues\n      // can do at once see https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues\n      for (var generated = 0; generated < size; generated += MAX_BYTES) {\n        // buffer.slice automatically checks if the end is past the end of\n        // the buffer so we don't have to here\n        crypto.getRandomValues(bytes.slice(generated, generated + MAX_BYTES))\n      }\n    } else {\n      crypto.getRandomValues(bytes)\n    }\n  }\n\n  if (typeof cb === 'function') {\n    return process.nextTick(function () {\n      cb(null, bytes)\n    })\n  }\n\n  return bytes\n}\n","'use strict'\n\nfunction oldBrowser () {\n  throw new Error('secure random number generation not supported by this browser\\nuse chrome, FireFox or Internet Explorer 11')\n}\nvar safeBuffer = require('safe-buffer')\nvar randombytes = require('randombytes')\nvar Buffer = safeBuffer.Buffer\nvar kBufferMaxLength = safeBuffer.kMaxLength\nvar crypto = global.crypto || global.msCrypto\nvar kMaxUint32 = Math.pow(2, 32) - 1\nfunction assertOffset (offset, length) {\n  if (typeof offset !== 'number' || offset !== offset) { // eslint-disable-line no-self-compare\n    throw new TypeError('offset must be a number')\n  }\n\n  if (offset > kMaxUint32 || offset < 0) {\n    throw new TypeError('offset must be a uint32')\n  }\n\n  if (offset > kBufferMaxLength || offset > length) {\n    throw new RangeError('offset out of range')\n  }\n}\n\nfunction assertSize (size, offset, length) {\n  if (typeof size !== 'number' || size !== size) { // eslint-disable-line no-self-compare\n    throw new TypeError('size must be a number')\n  }\n\n  if (size > kMaxUint32 || size < 0) {\n    throw new TypeError('size must be a uint32')\n  }\n\n  if (size + offset > length || size > kBufferMaxLength) {\n    throw new RangeError('buffer too small')\n  }\n}\nif ((crypto && crypto.getRandomValues) || !process.browser) {\n  exports.randomFill = randomFill\n  exports.randomFillSync = randomFillSync\n} else {\n  exports.randomFill = oldBrowser\n  exports.randomFillSync = oldBrowser\n}\nfunction randomFill (buf, offset, size, cb) {\n  if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {\n    throw new TypeError('\"buf\" argument must be a Buffer or Uint8Array')\n  }\n\n  if (typeof offset === 'function') {\n    cb = offset\n    offset = 0\n    size = buf.length\n  } else if (typeof size === 'function') {\n    cb = size\n    size = buf.length - offset\n  } else if (typeof cb !== 'function') {\n    throw new TypeError('\"cb\" argument must be a function')\n  }\n  assertOffset(offset, buf.length)\n  assertSize(size, offset, buf.length)\n  return actualFill(buf, offset, size, cb)\n}\n\nfunction actualFill (buf, offset, size, cb) {\n  if (process.browser) {\n    var ourBuf = buf.buffer\n    var uint = new Uint8Array(ourBuf, offset, size)\n    crypto.getRandomValues(uint)\n    if (cb) {\n      process.nextTick(function () {\n        cb(null, buf)\n      })\n      return\n    }\n    return buf\n  }\n  if (cb) {\n    randombytes(size, function (err, bytes) {\n      if (err) {\n        return cb(err)\n      }\n      bytes.copy(buf, offset)\n      cb(null, buf)\n    })\n    return\n  }\n  var bytes = randombytes(size)\n  bytes.copy(buf, offset)\n  return buf\n}\nfunction randomFillSync (buf, offset, size) {\n  if (typeof offset === 'undefined') {\n    offset = 0\n  }\n  if (!Buffer.isBuffer(buf) && !(buf instanceof global.Uint8Array)) {\n    throw new TypeError('\"buf\" argument must be a Buffer or Uint8Array')\n  }\n\n  assertOffset(offset, buf.length)\n\n  if (size === undefined) size = buf.length - offset\n\n  assertSize(size, offset, buf.length)\n\n  return actualFill(buf, offset, size)\n}\n","module.exports = require('./lib/_stream_duplex.js');\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a duplex stream is just a stream that is both readable and writable.\n// Since JS doesn't have multiple prototypal inheritance, this class\n// prototypally inherits from Readable, and then parasitically from\n// Writable.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n/*<replacement>*/\nvar objectKeys = Object.keys || function (obj) {\n  var keys = [];\n  for (var key in obj) {\n    keys.push(key);\n  }return keys;\n};\n/*</replacement>*/\n\nmodule.exports = Duplex;\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nvar Readable = require('./_stream_readable');\nvar Writable = require('./_stream_writable');\n\nutil.inherits(Duplex, Readable);\n\n{\n  // avoid scope creep, the keys array can then be collected\n  var keys = objectKeys(Writable.prototype);\n  for (var v = 0; v < keys.length; v++) {\n    var method = keys[v];\n    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];\n  }\n}\n\nfunction Duplex(options) {\n  if (!(this instanceof Duplex)) return new Duplex(options);\n\n  Readable.call(this, options);\n  Writable.call(this, options);\n\n  if (options && options.readable === false) this.readable = false;\n\n  if (options && options.writable === false) this.writable = false;\n\n  this.allowHalfOpen = true;\n  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;\n\n  this.once('end', onend);\n}\n\nObject.defineProperty(Duplex.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// the no-half-open enforcer\nfunction onend() {\n  // if we allow half-open state, or if the writable side ended,\n  // then we're ok.\n  if (this.allowHalfOpen || this._writableState.ended) return;\n\n  // no more data can be written.\n  // But allow more writes to happen in this tick.\n  pna.nextTick(onEndNT, this);\n}\n\nfunction onEndNT(self) {\n  self.end();\n}\n\nObject.defineProperty(Duplex.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed && this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n    this._writableState.destroyed = value;\n  }\n});\n\nDuplex.prototype._destroy = function (err, cb) {\n  this.push(null);\n  this.end();\n\n  pna.nextTick(cb, err);\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a passthrough stream.\n// basically just the most minimal sort of Transform stream.\n// Every written chunk gets output as-is.\n\n'use strict';\n\nmodule.exports = PassThrough;\n\nvar Transform = require('./_stream_transform');\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(PassThrough, Transform);\n\nfunction PassThrough(options) {\n  if (!(this instanceof PassThrough)) return new PassThrough(options);\n\n  Transform.call(this, options);\n}\n\nPassThrough.prototype._transform = function (chunk, encoding, cb) {\n  cb(null, chunk);\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Readable;\n\n/*<replacement>*/\nvar isArray = require('isarray');\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nReadable.ReadableState = ReadableState;\n\n/*<replacement>*/\nvar EE = require('events').EventEmitter;\n\nvar EElistenerCount = function (emitter, type) {\n  return emitter.listeners(type).length;\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar debugUtil = require('util');\nvar debug = void 0;\nif (debugUtil && debugUtil.debuglog) {\n  debug = debugUtil.debuglog('stream');\n} else {\n  debug = function () {};\n}\n/*</replacement>*/\n\nvar BufferList = require('./internal/streams/BufferList');\nvar destroyImpl = require('./internal/streams/destroy');\nvar StringDecoder;\n\nutil.inherits(Readable, Stream);\n\nvar kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];\n\nfunction prependListener(emitter, event, fn) {\n  // Sadly this is not cacheable as some libraries bundle their own\n  // event emitter implementation with them.\n  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);\n\n  // This is a hack to make sure that our error handler is attached before any\n  // userland ones.  NEVER DO THIS. This is here only because this code needs\n  // to continue to work with older versions of Node.js that do not include\n  // the prependListener() method. The goal is to eventually remove this hack.\n  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];\n}\n\nfunction ReadableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag. Used to make read(n) ignore n and to\n  // make all the buffer merging and length checks go away\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;\n\n  // the point at which it stops calling _read() to fill the buffer\n  // Note: 0 is a valid value, means \"don't call _read preemptively ever\"\n  var hwm = options.highWaterMark;\n  var readableHwm = options.readableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // A linked list is used to store data chunks instead of an array because the\n  // linked list can remove elements from the beginning faster than\n  // array.shift()\n  this.buffer = new BufferList();\n  this.length = 0;\n  this.pipes = null;\n  this.pipesCount = 0;\n  this.flowing = null;\n  this.ended = false;\n  this.endEmitted = false;\n  this.reading = false;\n\n  // a flag to be able to tell if the event 'readable'/'data' is emitted\n  // immediately, or on a later tick.  We set this to true at first, because\n  // any actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first read call.\n  this.sync = true;\n\n  // whenever we return null, then we set a flag to say\n  // that we're awaiting a 'readable' event emission.\n  this.needReadable = false;\n  this.emittedReadable = false;\n  this.readableListening = false;\n  this.resumeScheduled = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // the number of writers that are awaiting a drain event in .pipe()s\n  this.awaitDrain = 0;\n\n  // if true, a maybeReadMore has been scheduled\n  this.readingMore = false;\n\n  this.decoder = null;\n  this.encoding = null;\n  if (options.encoding) {\n    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n    this.decoder = new StringDecoder(options.encoding);\n    this.encoding = options.encoding;\n  }\n}\n\nfunction Readable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  if (!(this instanceof Readable)) return new Readable(options);\n\n  this._readableState = new ReadableState(options, this);\n\n  // legacy\n  this.readable = true;\n\n  if (options) {\n    if (typeof options.read === 'function') this._read = options.read;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n  }\n\n  Stream.call(this);\n}\n\nObject.defineProperty(Readable.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._readableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n  }\n});\n\nReadable.prototype.destroy = destroyImpl.destroy;\nReadable.prototype._undestroy = destroyImpl.undestroy;\nReadable.prototype._destroy = function (err, cb) {\n  this.push(null);\n  cb(err);\n};\n\n// Manually shove something into the read() buffer.\n// This returns true if the highWaterMark has not been hit yet,\n// similar to how Writable.write() returns true if you should\n// write() some more.\nReadable.prototype.push = function (chunk, encoding) {\n  var state = this._readableState;\n  var skipChunkCheck;\n\n  if (!state.objectMode) {\n    if (typeof chunk === 'string') {\n      encoding = encoding || state.defaultEncoding;\n      if (encoding !== state.encoding) {\n        chunk = Buffer.from(chunk, encoding);\n        encoding = '';\n      }\n      skipChunkCheck = true;\n    }\n  } else {\n    skipChunkCheck = true;\n  }\n\n  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);\n};\n\n// Unshift should *always* be something directly out of read()\nReadable.prototype.unshift = function (chunk) {\n  return readableAddChunk(this, chunk, null, true, false);\n};\n\nfunction readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {\n  var state = stream._readableState;\n  if (chunk === null) {\n    state.reading = false;\n    onEofChunk(stream, state);\n  } else {\n    var er;\n    if (!skipChunkCheck) er = chunkInvalid(state, chunk);\n    if (er) {\n      stream.emit('error', er);\n    } else if (state.objectMode || chunk && chunk.length > 0) {\n      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {\n        chunk = _uint8ArrayToBuffer(chunk);\n      }\n\n      if (addToFront) {\n        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);\n      } else if (state.ended) {\n        stream.emit('error', new Error('stream.push() after EOF'));\n      } else {\n        state.reading = false;\n        if (state.decoder && !encoding) {\n          chunk = state.decoder.write(chunk);\n          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);\n        } else {\n          addChunk(stream, state, chunk, false);\n        }\n      }\n    } else if (!addToFront) {\n      state.reading = false;\n    }\n  }\n\n  return needMoreData(state);\n}\n\nfunction addChunk(stream, state, chunk, addToFront) {\n  if (state.flowing && state.length === 0 && !state.sync) {\n    stream.emit('data', chunk);\n    stream.read(0);\n  } else {\n    // update the buffer info.\n    state.length += state.objectMode ? 1 : chunk.length;\n    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);\n\n    if (state.needReadable) emitReadable(stream);\n  }\n  maybeReadMore(stream, state);\n}\n\nfunction chunkInvalid(state, chunk) {\n  var er;\n  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  return er;\n}\n\n// if it's past the high water mark, we can push in some more.\n// Also, if we have no data yet, we can stand some\n// more bytes.  This is to work around cases where hwm=0,\n// such as the repl.  Also, if the push() triggered a\n// readable event, and the user called read(largeNumber) such that\n// needReadable was set, then we ought to push more, so that another\n// 'readable' event will be triggered.\nfunction needMoreData(state) {\n  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);\n}\n\nReadable.prototype.isPaused = function () {\n  return this._readableState.flowing === false;\n};\n\n// backwards compatibility.\nReadable.prototype.setEncoding = function (enc) {\n  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n  this._readableState.decoder = new StringDecoder(enc);\n  this._readableState.encoding = enc;\n  return this;\n};\n\n// Don't raise the hwm > 8MB\nvar MAX_HWM = 0x800000;\nfunction computeNewHighWaterMark(n) {\n  if (n >= MAX_HWM) {\n    n = MAX_HWM;\n  } else {\n    // Get the next highest power of 2 to prevent increasing hwm excessively in\n    // tiny amounts\n    n--;\n    n |= n >>> 1;\n    n |= n >>> 2;\n    n |= n >>> 4;\n    n |= n >>> 8;\n    n |= n >>> 16;\n    n++;\n  }\n  return n;\n}\n\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction howMuchToRead(n, state) {\n  if (n <= 0 || state.length === 0 && state.ended) return 0;\n  if (state.objectMode) return 1;\n  if (n !== n) {\n    // Only flow one buffer at a time\n    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;\n  }\n  // If we're asking for more than the current hwm, then raise the hwm.\n  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);\n  if (n <= state.length) return n;\n  // Don't have enough\n  if (!state.ended) {\n    state.needReadable = true;\n    return 0;\n  }\n  return state.length;\n}\n\n// you can override either this method, or the async _read(n) below.\nReadable.prototype.read = function (n) {\n  debug('read', n);\n  n = parseInt(n, 10);\n  var state = this._readableState;\n  var nOrig = n;\n\n  if (n !== 0) state.emittedReadable = false;\n\n  // if we're doing read(0) to trigger a readable event, but we\n  // already have a bunch of data in the buffer, then just trigger\n  // the 'readable' event and move on.\n  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {\n    debug('read: emitReadable', state.length, state.ended);\n    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);\n    return null;\n  }\n\n  n = howMuchToRead(n, state);\n\n  // if we've ended, and we're now clear, then finish it up.\n  if (n === 0 && state.ended) {\n    if (state.length === 0) endReadable(this);\n    return null;\n  }\n\n  // All the actual chunk generation logic needs to be\n  // *below* the call to _read.  The reason is that in certain\n  // synthetic stream cases, such as passthrough streams, _read\n  // may be a completely synchronous operation which may change\n  // the state of the read buffer, providing enough data when\n  // before there was *not* enough.\n  //\n  // So, the steps are:\n  // 1. Figure out what the state of things will be after we do\n  // a read from the buffer.\n  //\n  // 2. If that resulting state will trigger a _read, then call _read.\n  // Note that this may be asynchronous, or synchronous.  Yes, it is\n  // deeply ugly to write APIs this way, but that still doesn't mean\n  // that the Readable class should behave improperly, as streams are\n  // designed to be sync/async agnostic.\n  // Take note if the _read call is sync or async (ie, if the read call\n  // has returned yet), so that we know whether or not it's safe to emit\n  // 'readable' etc.\n  //\n  // 3. Actually pull the requested chunks out of the buffer and return.\n\n  // if we need a readable event, then we need to do some reading.\n  var doRead = state.needReadable;\n  debug('need readable', doRead);\n\n  // if we currently have less than the highWaterMark, then also read some\n  if (state.length === 0 || state.length - n < state.highWaterMark) {\n    doRead = true;\n    debug('length less than watermark', doRead);\n  }\n\n  // however, if we've ended, then there's no point, and if we're already\n  // reading, then it's unnecessary.\n  if (state.ended || state.reading) {\n    doRead = false;\n    debug('reading or ended', doRead);\n  } else if (doRead) {\n    debug('do read');\n    state.reading = true;\n    state.sync = true;\n    // if the length is currently zero, then we *need* a readable event.\n    if (state.length === 0) state.needReadable = true;\n    // call internal read method\n    this._read(state.highWaterMark);\n    state.sync = false;\n    // If _read pushed data synchronously, then `reading` will be false,\n    // and we need to re-evaluate how much data we can return to the user.\n    if (!state.reading) n = howMuchToRead(nOrig, state);\n  }\n\n  var ret;\n  if (n > 0) ret = fromList(n, state);else ret = null;\n\n  if (ret === null) {\n    state.needReadable = true;\n    n = 0;\n  } else {\n    state.length -= n;\n  }\n\n  if (state.length === 0) {\n    // If we have nothing in the buffer, then we want to know\n    // as soon as we *do* get something into the buffer.\n    if (!state.ended) state.needReadable = true;\n\n    // If we tried to read() past the EOF, then emit end on the next tick.\n    if (nOrig !== n && state.ended) endReadable(this);\n  }\n\n  if (ret !== null) this.emit('data', ret);\n\n  return ret;\n};\n\nfunction onEofChunk(stream, state) {\n  if (state.ended) return;\n  if (state.decoder) {\n    var chunk = state.decoder.end();\n    if (chunk && chunk.length) {\n      state.buffer.push(chunk);\n      state.length += state.objectMode ? 1 : chunk.length;\n    }\n  }\n  state.ended = true;\n\n  // emit 'readable' now to make sure it gets picked up.\n  emitReadable(stream);\n}\n\n// Don't emit readable right away in sync mode, because this can trigger\n// another read() call => stack overflow.  This way, it might trigger\n// a nextTick recursion warning, but that's not so bad.\nfunction emitReadable(stream) {\n  var state = stream._readableState;\n  state.needReadable = false;\n  if (!state.emittedReadable) {\n    debug('emitReadable', state.flowing);\n    state.emittedReadable = true;\n    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);\n  }\n}\n\nfunction emitReadable_(stream) {\n  debug('emit readable');\n  stream.emit('readable');\n  flow(stream);\n}\n\n// at this point, the user has presumably seen the 'readable' event,\n// and called read() to consume some data.  that may have triggered\n// in turn another _read(n) call, in which case reading = true if\n// it's in progress.\n// However, if we're not ended, or reading, and the length < hwm,\n// then go ahead and try to read some more preemptively.\nfunction maybeReadMore(stream, state) {\n  if (!state.readingMore) {\n    state.readingMore = true;\n    pna.nextTick(maybeReadMore_, stream, state);\n  }\n}\n\nfunction maybeReadMore_(stream, state) {\n  var len = state.length;\n  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {\n    debug('maybeReadMore read 0');\n    stream.read(0);\n    if (len === state.length)\n      // didn't get any data, stop spinning.\n      break;else len = state.length;\n  }\n  state.readingMore = false;\n}\n\n// abstract method.  to be overridden in specific implementation classes.\n// call cb(er, data) where data is <= n in length.\n// for virtual (non-string, non-buffer) streams, \"length\" is somewhat\n// arbitrary, and perhaps not very meaningful.\nReadable.prototype._read = function (n) {\n  this.emit('error', new Error('_read() is not implemented'));\n};\n\nReadable.prototype.pipe = function (dest, pipeOpts) {\n  var src = this;\n  var state = this._readableState;\n\n  switch (state.pipesCount) {\n    case 0:\n      state.pipes = dest;\n      break;\n    case 1:\n      state.pipes = [state.pipes, dest];\n      break;\n    default:\n      state.pipes.push(dest);\n      break;\n  }\n  state.pipesCount += 1;\n  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);\n\n  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;\n\n  var endFn = doEnd ? onend : unpipe;\n  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);\n\n  dest.on('unpipe', onunpipe);\n  function onunpipe(readable, unpipeInfo) {\n    debug('onunpipe');\n    if (readable === src) {\n      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {\n        unpipeInfo.hasUnpiped = true;\n        cleanup();\n      }\n    }\n  }\n\n  function onend() {\n    debug('onend');\n    dest.end();\n  }\n\n  // when the dest drains, it reduces the awaitDrain counter\n  // on the source.  This would be more elegant with a .once()\n  // handler in flow(), but adding and removing repeatedly is\n  // too slow.\n  var ondrain = pipeOnDrain(src);\n  dest.on('drain', ondrain);\n\n  var cleanedUp = false;\n  function cleanup() {\n    debug('cleanup');\n    // cleanup event handlers once the pipe is broken\n    dest.removeListener('close', onclose);\n    dest.removeListener('finish', onfinish);\n    dest.removeListener('drain', ondrain);\n    dest.removeListener('error', onerror);\n    dest.removeListener('unpipe', onunpipe);\n    src.removeListener('end', onend);\n    src.removeListener('end', unpipe);\n    src.removeListener('data', ondata);\n\n    cleanedUp = true;\n\n    // if the reader is waiting for a drain event from this\n    // specific writer, then it would cause it to never start\n    // flowing again.\n    // So, if this is awaiting a drain, then we just call it now.\n    // If we don't know, then assume that we are waiting for one.\n    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();\n  }\n\n  // If the user pushes more data while we're writing to dest then we'll end up\n  // in ondata again. However, we only want to increase awaitDrain once because\n  // dest will only emit one 'drain' event for the multiple writes.\n  // => Introduce a guard on increasing awaitDrain.\n  var increasedAwaitDrain = false;\n  src.on('data', ondata);\n  function ondata(chunk) {\n    debug('ondata');\n    increasedAwaitDrain = false;\n    var ret = dest.write(chunk);\n    if (false === ret && !increasedAwaitDrain) {\n      // If the user unpiped during `dest.write()`, it is possible\n      // to get stuck in a permanently paused state if that write\n      // also returned false.\n      // => Check whether `dest` is still a piping destination.\n      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {\n        debug('false write response, pause', src._readableState.awaitDrain);\n        src._readableState.awaitDrain++;\n        increasedAwaitDrain = true;\n      }\n      src.pause();\n    }\n  }\n\n  // if the dest has an error, then stop piping into it.\n  // however, don't suppress the throwing behavior for this.\n  function onerror(er) {\n    debug('onerror', er);\n    unpipe();\n    dest.removeListener('error', onerror);\n    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);\n  }\n\n  // Make sure our error handler is attached before userland ones.\n  prependListener(dest, 'error', onerror);\n\n  // Both close and finish should trigger unpipe, but only once.\n  function onclose() {\n    dest.removeListener('finish', onfinish);\n    unpipe();\n  }\n  dest.once('close', onclose);\n  function onfinish() {\n    debug('onfinish');\n    dest.removeListener('close', onclose);\n    unpipe();\n  }\n  dest.once('finish', onfinish);\n\n  function unpipe() {\n    debug('unpipe');\n    src.unpipe(dest);\n  }\n\n  // tell the dest that it's being piped to\n  dest.emit('pipe', src);\n\n  // start the flow if it hasn't been started already.\n  if (!state.flowing) {\n    debug('pipe resume');\n    src.resume();\n  }\n\n  return dest;\n};\n\nfunction pipeOnDrain(src) {\n  return function () {\n    var state = src._readableState;\n    debug('pipeOnDrain', state.awaitDrain);\n    if (state.awaitDrain) state.awaitDrain--;\n    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {\n      state.flowing = true;\n      flow(src);\n    }\n  };\n}\n\nReadable.prototype.unpipe = function (dest) {\n  var state = this._readableState;\n  var unpipeInfo = { hasUnpiped: false };\n\n  // if we're not piping anywhere, then do nothing.\n  if (state.pipesCount === 0) return this;\n\n  // just one destination.  most common case.\n  if (state.pipesCount === 1) {\n    // passed in one, but it's not the right one.\n    if (dest && dest !== state.pipes) return this;\n\n    if (!dest) dest = state.pipes;\n\n    // got a match.\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n    if (dest) dest.emit('unpipe', this, unpipeInfo);\n    return this;\n  }\n\n  // slow case. multiple pipe destinations.\n\n  if (!dest) {\n    // remove all.\n    var dests = state.pipes;\n    var len = state.pipesCount;\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n\n    for (var i = 0; i < len; i++) {\n      dests[i].emit('unpipe', this, unpipeInfo);\n    }return this;\n  }\n\n  // try to find the right one.\n  var index = indexOf(state.pipes, dest);\n  if (index === -1) return this;\n\n  state.pipes.splice(index, 1);\n  state.pipesCount -= 1;\n  if (state.pipesCount === 1) state.pipes = state.pipes[0];\n\n  dest.emit('unpipe', this, unpipeInfo);\n\n  return this;\n};\n\n// set up data events if they are asked for\n// Ensure readable listeners eventually get something\nReadable.prototype.on = function (ev, fn) {\n  var res = Stream.prototype.on.call(this, ev, fn);\n\n  if (ev === 'data') {\n    // Start flowing on next tick if stream isn't explicitly paused\n    if (this._readableState.flowing !== false) this.resume();\n  } else if (ev === 'readable') {\n    var state = this._readableState;\n    if (!state.endEmitted && !state.readableListening) {\n      state.readableListening = state.needReadable = true;\n      state.emittedReadable = false;\n      if (!state.reading) {\n        pna.nextTick(nReadingNextTick, this);\n      } else if (state.length) {\n        emitReadable(this);\n      }\n    }\n  }\n\n  return res;\n};\nReadable.prototype.addListener = Readable.prototype.on;\n\nfunction nReadingNextTick(self) {\n  debug('readable nexttick read 0');\n  self.read(0);\n}\n\n// pause() and resume() are remnants of the legacy readable stream API\n// If the user uses them, then switch into old mode.\nReadable.prototype.resume = function () {\n  var state = this._readableState;\n  if (!state.flowing) {\n    debug('resume');\n    state.flowing = true;\n    resume(this, state);\n  }\n  return this;\n};\n\nfunction resume(stream, state) {\n  if (!state.resumeScheduled) {\n    state.resumeScheduled = true;\n    pna.nextTick(resume_, stream, state);\n  }\n}\n\nfunction resume_(stream, state) {\n  if (!state.reading) {\n    debug('resume read 0');\n    stream.read(0);\n  }\n\n  state.resumeScheduled = false;\n  state.awaitDrain = 0;\n  stream.emit('resume');\n  flow(stream);\n  if (state.flowing && !state.reading) stream.read(0);\n}\n\nReadable.prototype.pause = function () {\n  debug('call pause flowing=%j', this._readableState.flowing);\n  if (false !== this._readableState.flowing) {\n    debug('pause');\n    this._readableState.flowing = false;\n    this.emit('pause');\n  }\n  return this;\n};\n\nfunction flow(stream) {\n  var state = stream._readableState;\n  debug('flow', state.flowing);\n  while (state.flowing && stream.read() !== null) {}\n}\n\n// wrap an old-style stream as the async data source.\n// This is *not* part of the readable stream interface.\n// It is an ugly unfortunate mess of history.\nReadable.prototype.wrap = function (stream) {\n  var _this = this;\n\n  var state = this._readableState;\n  var paused = false;\n\n  stream.on('end', function () {\n    debug('wrapped end');\n    if (state.decoder && !state.ended) {\n      var chunk = state.decoder.end();\n      if (chunk && chunk.length) _this.push(chunk);\n    }\n\n    _this.push(null);\n  });\n\n  stream.on('data', function (chunk) {\n    debug('wrapped data');\n    if (state.decoder) chunk = state.decoder.write(chunk);\n\n    // don't skip over falsy values in objectMode\n    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;\n\n    var ret = _this.push(chunk);\n    if (!ret) {\n      paused = true;\n      stream.pause();\n    }\n  });\n\n  // proxy all the other methods.\n  // important when wrapping filters and duplexes.\n  for (var i in stream) {\n    if (this[i] === undefined && typeof stream[i] === 'function') {\n      this[i] = function (method) {\n        return function () {\n          return stream[method].apply(stream, arguments);\n        };\n      }(i);\n    }\n  }\n\n  // proxy certain important events.\n  for (var n = 0; n < kProxyEvents.length; n++) {\n    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));\n  }\n\n  // when we try to consume some more bytes, simply unpause the\n  // underlying stream.\n  this._read = function (n) {\n    debug('wrapped _read', n);\n    if (paused) {\n      paused = false;\n      stream.resume();\n    }\n  };\n\n  return this;\n};\n\nObject.defineProperty(Readable.prototype, 'readableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._readableState.highWaterMark;\n  }\n});\n\n// exposed for testing purposes only.\nReadable._fromList = fromList;\n\n// Pluck off n bytes from an array of buffers.\n// Length is the combined lengths of all the buffers in the list.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromList(n, state) {\n  // nothing buffered\n  if (state.length === 0) return null;\n\n  var ret;\n  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {\n    // read it all, truncate the list\n    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);\n    state.buffer.clear();\n  } else {\n    // read part of list\n    ret = fromListPartial(n, state.buffer, state.decoder);\n  }\n\n  return ret;\n}\n\n// Extracts only enough buffered data to satisfy the amount requested.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromListPartial(n, list, hasStrings) {\n  var ret;\n  if (n < list.head.data.length) {\n    // slice is the same for buffers and strings\n    ret = list.head.data.slice(0, n);\n    list.head.data = list.head.data.slice(n);\n  } else if (n === list.head.data.length) {\n    // first chunk is a perfect match\n    ret = list.shift();\n  } else {\n    // result spans more than one buffer\n    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);\n  }\n  return ret;\n}\n\n// Copies a specified amount of characters from the list of buffered data\n// chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBufferString(n, list) {\n  var p = list.head;\n  var c = 1;\n  var ret = p.data;\n  n -= ret.length;\n  while (p = p.next) {\n    var str = p.data;\n    var nb = n > str.length ? str.length : n;\n    if (nb === str.length) ret += str;else ret += str.slice(0, n);\n    n -= nb;\n    if (n === 0) {\n      if (nb === str.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = str.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\n// Copies a specified amount of bytes from the list of buffered data chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBuffer(n, list) {\n  var ret = Buffer.allocUnsafe(n);\n  var p = list.head;\n  var c = 1;\n  p.data.copy(ret);\n  n -= p.data.length;\n  while (p = p.next) {\n    var buf = p.data;\n    var nb = n > buf.length ? buf.length : n;\n    buf.copy(ret, ret.length - n, 0, nb);\n    n -= nb;\n    if (n === 0) {\n      if (nb === buf.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = buf.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\nfunction endReadable(stream) {\n  var state = stream._readableState;\n\n  // If we get here before consuming all the bytes, then that is a\n  // bug in node.  Should never happen.\n  if (state.length > 0) throw new Error('\"endReadable()\" called on non-empty stream');\n\n  if (!state.endEmitted) {\n    state.ended = true;\n    pna.nextTick(endReadableNT, state, stream);\n  }\n}\n\nfunction endReadableNT(state, stream) {\n  // Check that we didn't get one last unshift.\n  if (!state.endEmitted && state.length === 0) {\n    state.endEmitted = true;\n    stream.readable = false;\n    stream.emit('end');\n  }\n}\n\nfunction indexOf(xs, x) {\n  for (var i = 0, l = xs.length; i < l; i++) {\n    if (xs[i] === x) return i;\n  }\n  return -1;\n}","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a transform stream is a readable/writable stream where you do\n// something with the data.  Sometimes it's called a \"filter\",\n// but that's not a great name for it, since that implies a thing where\n// some bits pass through, and others are simply ignored.  (That would\n// be a valid example of a transform, of course.)\n//\n// While the output is causally related to the input, it's not a\n// necessarily symmetric or synchronous transformation.  For example,\n// a zlib stream might take multiple plain-text writes(), and then\n// emit a single compressed chunk some time in the future.\n//\n// Here's how this works:\n//\n// The Transform stream has all the aspects of the readable and writable\n// stream classes.  When you write(chunk), that calls _write(chunk,cb)\n// internally, and returns false if there's a lot of pending writes\n// buffered up.  When you call read(), that calls _read(n) until\n// there's enough pending readable data buffered up.\n//\n// In a transform stream, the written data is placed in a buffer.  When\n// _read(n) is called, it transforms the queued up data, calling the\n// buffered _write cb's as it consumes chunks.  If consuming a single\n// written chunk would result in multiple output chunks, then the first\n// outputted bit calls the readcb, and subsequent chunks just go into\n// the read buffer, and will cause it to emit 'readable' if necessary.\n//\n// This way, back-pressure is actually determined by the reading side,\n// since _read has to be called to start processing a new chunk.  However,\n// a pathological inflate type of transform can cause excessive buffering\n// here.  For example, imagine a stream where every byte of input is\n// interpreted as an integer from 0-255, and then results in that many\n// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in\n// 1kb of data being output.  In this case, you could write a very small\n// amount of input, and end up with a very large amount of output.  In\n// such a pathological inflating mechanism, there'd be no way to tell\n// the system to stop doing the transform.  A single 4MB write could\n// cause the system to run out of memory.\n//\n// However, even in such a pathological case, only a single written chunk\n// would be consumed, and then the rest would wait (un-transformed) until\n// the results of the previous transformed chunk were consumed.\n\n'use strict';\n\nmodule.exports = Transform;\n\nvar Duplex = require('./_stream_duplex');\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(Transform, Duplex);\n\nfunction afterTransform(er, data) {\n  var ts = this._transformState;\n  ts.transforming = false;\n\n  var cb = ts.writecb;\n\n  if (!cb) {\n    return this.emit('error', new Error('write callback called multiple times'));\n  }\n\n  ts.writechunk = null;\n  ts.writecb = null;\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    this.push(data);\n\n  cb(er);\n\n  var rs = this._readableState;\n  rs.reading = false;\n  if (rs.needReadable || rs.length < rs.highWaterMark) {\n    this._read(rs.highWaterMark);\n  }\n}\n\nfunction Transform(options) {\n  if (!(this instanceof Transform)) return new Transform(options);\n\n  Duplex.call(this, options);\n\n  this._transformState = {\n    afterTransform: afterTransform.bind(this),\n    needTransform: false,\n    transforming: false,\n    writecb: null,\n    writechunk: null,\n    writeencoding: null\n  };\n\n  // start out asking for a readable event once data is transformed.\n  this._readableState.needReadable = true;\n\n  // we have implemented the _read method, and done the other things\n  // that Readable wants before the first _read call, so unset the\n  // sync guard flag.\n  this._readableState.sync = false;\n\n  if (options) {\n    if (typeof options.transform === 'function') this._transform = options.transform;\n\n    if (typeof options.flush === 'function') this._flush = options.flush;\n  }\n\n  // When the writable side finishes, then flush out anything remaining.\n  this.on('prefinish', prefinish);\n}\n\nfunction prefinish() {\n  var _this = this;\n\n  if (typeof this._flush === 'function') {\n    this._flush(function (er, data) {\n      done(_this, er, data);\n    });\n  } else {\n    done(this, null, null);\n  }\n}\n\nTransform.prototype.push = function (chunk, encoding) {\n  this._transformState.needTransform = false;\n  return Duplex.prototype.push.call(this, chunk, encoding);\n};\n\n// This is the part where you do stuff!\n// override this function in implementation classes.\n// 'chunk' is an input chunk.\n//\n// Call `push(newChunk)` to pass along transformed output\n// to the readable side.  You may call 'push' zero or more times.\n//\n// Call `cb(err)` when you are done with this chunk.  If you pass\n// an error, then that'll put the hurt on the whole operation.  If you\n// never call cb(), then you'll never get another chunk.\nTransform.prototype._transform = function (chunk, encoding, cb) {\n  throw new Error('_transform() is not implemented');\n};\n\nTransform.prototype._write = function (chunk, encoding, cb) {\n  var ts = this._transformState;\n  ts.writecb = cb;\n  ts.writechunk = chunk;\n  ts.writeencoding = encoding;\n  if (!ts.transforming) {\n    var rs = this._readableState;\n    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);\n  }\n};\n\n// Doesn't matter what the args are here.\n// _transform does all the work.\n// That we got here means that the readable side wants more data.\nTransform.prototype._read = function (n) {\n  var ts = this._transformState;\n\n  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {\n    ts.transforming = true;\n    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);\n  } else {\n    // mark that we need a transform, so that any data that comes in\n    // will get processed, now that we've asked for it.\n    ts.needTransform = true;\n  }\n};\n\nTransform.prototype._destroy = function (err, cb) {\n  var _this2 = this;\n\n  Duplex.prototype._destroy.call(this, err, function (err2) {\n    cb(err2);\n    _this2.emit('close');\n  });\n};\n\nfunction done(stream, er, data) {\n  if (er) return stream.emit('error', er);\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    stream.push(data);\n\n  // if there's nothing in the write buffer, then that means\n  // that nothing more will ever be provided\n  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');\n\n  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');\n\n  return stream.push(null);\n}","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// A bit simpler than readable streams.\n// Implement an async ._write(chunk, encoding, cb), and it'll handle all\n// the drain event emission and buffering.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Writable;\n\n/* <replacement> */\nfunction WriteReq(chunk, encoding, cb) {\n  this.chunk = chunk;\n  this.encoding = encoding;\n  this.callback = cb;\n  this.next = null;\n}\n\n// It seems a linked list but it is not\n// there will be only 2 of these for each stream\nfunction CorkedRequest(state) {\n  var _this = this;\n\n  this.next = null;\n  this.entry = null;\n  this.finish = function () {\n    onCorkedFinish(_this, state);\n  };\n}\n/* </replacement> */\n\n/*<replacement>*/\nvar asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nWritable.WritableState = WritableState;\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar internalUtil = {\n  deprecate: require('util-deprecate')\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\nvar destroyImpl = require('./internal/streams/destroy');\n\nutil.inherits(Writable, Stream);\n\nfunction nop() {}\n\nfunction WritableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag to indicate whether or not this stream\n  // contains buffers or objects.\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;\n\n  // the point at which write() starts returning false\n  // Note: 0 is a valid value, means that we always return false if\n  // the entire buffer is not flushed immediately on write()\n  var hwm = options.highWaterMark;\n  var writableHwm = options.writableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // if _final has been called\n  this.finalCalled = false;\n\n  // drain event flag.\n  this.needDrain = false;\n  // at the start of calling end()\n  this.ending = false;\n  // when end() has been called, and returned\n  this.ended = false;\n  // when 'finish' is emitted\n  this.finished = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // should we decode strings into buffers before passing to _write?\n  // this is here so that some node-core streams can optimize string\n  // handling at a lower level.\n  var noDecode = options.decodeStrings === false;\n  this.decodeStrings = !noDecode;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // not an actual buffer we keep track of, but a measurement\n  // of how much we're waiting to get pushed to some underlying\n  // socket or file.\n  this.length = 0;\n\n  // a flag to see when we're in the middle of a write.\n  this.writing = false;\n\n  // when true all writes will be buffered until .uncork() call\n  this.corked = 0;\n\n  // a flag to be able to tell if the onwrite cb is called immediately,\n  // or on a later tick.  We set this to true at first, because any\n  // actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first write call.\n  this.sync = true;\n\n  // a flag to know if we're processing previously buffered items, which\n  // may call the _write() callback in the same tick, so that we don't\n  // end up in an overlapped onwrite situation.\n  this.bufferProcessing = false;\n\n  // the callback that's passed to _write(chunk,cb)\n  this.onwrite = function (er) {\n    onwrite(stream, er);\n  };\n\n  // the callback that the user supplies to write(chunk,encoding,cb)\n  this.writecb = null;\n\n  // the amount that is being written when _write is called.\n  this.writelen = 0;\n\n  this.bufferedRequest = null;\n  this.lastBufferedRequest = null;\n\n  // number of pending user-supplied write callbacks\n  // this must be 0 before 'finish' can be emitted\n  this.pendingcb = 0;\n\n  // emit prefinish if the only thing we're waiting for is _write cbs\n  // This is relevant for synchronous Transform streams\n  this.prefinished = false;\n\n  // True if the error was already emitted and should not be thrown again\n  this.errorEmitted = false;\n\n  // count buffered requests\n  this.bufferedRequestCount = 0;\n\n  // allocate the first CorkedRequest, there is always\n  // one allocated and free to use, and we maintain at most two\n  this.corkedRequestsFree = new CorkedRequest(this);\n}\n\nWritableState.prototype.getBuffer = function getBuffer() {\n  var current = this.bufferedRequest;\n  var out = [];\n  while (current) {\n    out.push(current);\n    current = current.next;\n  }\n  return out;\n};\n\n(function () {\n  try {\n    Object.defineProperty(WritableState.prototype, 'buffer', {\n      get: internalUtil.deprecate(function () {\n        return this.getBuffer();\n      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')\n    });\n  } catch (_) {}\n})();\n\n// Test _writableState for inheritance to account for Duplex streams,\n// whose prototype chain only points to Readable.\nvar realHasInstance;\nif (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {\n  realHasInstance = Function.prototype[Symbol.hasInstance];\n  Object.defineProperty(Writable, Symbol.hasInstance, {\n    value: function (object) {\n      if (realHasInstance.call(this, object)) return true;\n      if (this !== Writable) return false;\n\n      return object && object._writableState instanceof WritableState;\n    }\n  });\n} else {\n  realHasInstance = function (object) {\n    return object instanceof this;\n  };\n}\n\nfunction Writable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  // Writable ctor is applied to Duplexes, too.\n  // `realHasInstance` is necessary because using plain `instanceof`\n  // would return false, as no `_writableState` property is attached.\n\n  // Trying to use the custom `instanceof` for Writable here will also break the\n  // Node.js LazyTransform implementation, which has a non-trivial getter for\n  // `_writableState` that would lead to infinite recursion.\n  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {\n    return new Writable(options);\n  }\n\n  this._writableState = new WritableState(options, this);\n\n  // legacy.\n  this.writable = true;\n\n  if (options) {\n    if (typeof options.write === 'function') this._write = options.write;\n\n    if (typeof options.writev === 'function') this._writev = options.writev;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n\n    if (typeof options.final === 'function') this._final = options.final;\n  }\n\n  Stream.call(this);\n}\n\n// Otherwise people can pipe Writable streams, which is just wrong.\nWritable.prototype.pipe = function () {\n  this.emit('error', new Error('Cannot pipe, not readable'));\n};\n\nfunction writeAfterEnd(stream, cb) {\n  var er = new Error('write after end');\n  // TODO: defer error events consistently everywhere, not just the cb\n  stream.emit('error', er);\n  pna.nextTick(cb, er);\n}\n\n// Checks that a user-supplied chunk is valid, especially for the particular\n// mode the stream is in. Currently this means that `null` is never accepted\n// and undefined/non-string values are only allowed in object mode.\nfunction validChunk(stream, state, chunk, cb) {\n  var valid = true;\n  var er = false;\n\n  if (chunk === null) {\n    er = new TypeError('May not write null values to stream');\n  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  if (er) {\n    stream.emit('error', er);\n    pna.nextTick(cb, er);\n    valid = false;\n  }\n  return valid;\n}\n\nWritable.prototype.write = function (chunk, encoding, cb) {\n  var state = this._writableState;\n  var ret = false;\n  var isBuf = !state.objectMode && _isUint8Array(chunk);\n\n  if (isBuf && !Buffer.isBuffer(chunk)) {\n    chunk = _uint8ArrayToBuffer(chunk);\n  }\n\n  if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;\n\n  if (typeof cb !== 'function') cb = nop;\n\n  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {\n    state.pendingcb++;\n    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);\n  }\n\n  return ret;\n};\n\nWritable.prototype.cork = function () {\n  var state = this._writableState;\n\n  state.corked++;\n};\n\nWritable.prototype.uncork = function () {\n  var state = this._writableState;\n\n  if (state.corked) {\n    state.corked--;\n\n    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);\n  }\n};\n\nWritable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {\n  // node::ParseEncoding() requires lower case.\n  if (typeof encoding === 'string') encoding = encoding.toLowerCase();\n  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);\n  this._writableState.defaultEncoding = encoding;\n  return this;\n};\n\nfunction decodeChunk(state, chunk, encoding) {\n  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {\n    chunk = Buffer.from(chunk, encoding);\n  }\n  return chunk;\n}\n\nObject.defineProperty(Writable.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// if we're already writing something, then just put this\n// in the queue, and wait our turn.  Otherwise, call _write\n// If we return false, then we need a drain event, so set that flag.\nfunction writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {\n  if (!isBuf) {\n    var newChunk = decodeChunk(state, chunk, encoding);\n    if (chunk !== newChunk) {\n      isBuf = true;\n      encoding = 'buffer';\n      chunk = newChunk;\n    }\n  }\n  var len = state.objectMode ? 1 : chunk.length;\n\n  state.length += len;\n\n  var ret = state.length < state.highWaterMark;\n  // we must ensure that previous needDrain will not be reset to false.\n  if (!ret) state.needDrain = true;\n\n  if (state.writing || state.corked) {\n    var last = state.lastBufferedRequest;\n    state.lastBufferedRequest = {\n      chunk: chunk,\n      encoding: encoding,\n      isBuf: isBuf,\n      callback: cb,\n      next: null\n    };\n    if (last) {\n      last.next = state.lastBufferedRequest;\n    } else {\n      state.bufferedRequest = state.lastBufferedRequest;\n    }\n    state.bufferedRequestCount += 1;\n  } else {\n    doWrite(stream, state, false, len, chunk, encoding, cb);\n  }\n\n  return ret;\n}\n\nfunction doWrite(stream, state, writev, len, chunk, encoding, cb) {\n  state.writelen = len;\n  state.writecb = cb;\n  state.writing = true;\n  state.sync = true;\n  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);\n  state.sync = false;\n}\n\nfunction onwriteError(stream, state, sync, er, cb) {\n  --state.pendingcb;\n\n  if (sync) {\n    // defer the callback if we are being called synchronously\n    // to avoid piling up things on the stack\n    pna.nextTick(cb, er);\n    // this can emit finish, and it will always happen\n    // after error\n    pna.nextTick(finishMaybe, stream, state);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n  } else {\n    // the caller expect this to happen before if\n    // it is async\n    cb(er);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n    // this can emit finish, but finish must\n    // always follow error\n    finishMaybe(stream, state);\n  }\n}\n\nfunction onwriteStateUpdate(state) {\n  state.writing = false;\n  state.writecb = null;\n  state.length -= state.writelen;\n  state.writelen = 0;\n}\n\nfunction onwrite(stream, er) {\n  var state = stream._writableState;\n  var sync = state.sync;\n  var cb = state.writecb;\n\n  onwriteStateUpdate(state);\n\n  if (er) onwriteError(stream, state, sync, er, cb);else {\n    // Check if we're actually ready to finish, but don't emit yet\n    var finished = needFinish(state);\n\n    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {\n      clearBuffer(stream, state);\n    }\n\n    if (sync) {\n      /*<replacement>*/\n      asyncWrite(afterWrite, stream, state, finished, cb);\n      /*</replacement>*/\n    } else {\n      afterWrite(stream, state, finished, cb);\n    }\n  }\n}\n\nfunction afterWrite(stream, state, finished, cb) {\n  if (!finished) onwriteDrain(stream, state);\n  state.pendingcb--;\n  cb();\n  finishMaybe(stream, state);\n}\n\n// Must force callback to be called on nextTick, so that we don't\n// emit 'drain' before the write() consumer gets the 'false' return\n// value, and has a chance to attach a 'drain' listener.\nfunction onwriteDrain(stream, state) {\n  if (state.length === 0 && state.needDrain) {\n    state.needDrain = false;\n    stream.emit('drain');\n  }\n}\n\n// if there's something in the buffer waiting, then process it\nfunction clearBuffer(stream, state) {\n  state.bufferProcessing = true;\n  var entry = state.bufferedRequest;\n\n  if (stream._writev && entry && entry.next) {\n    // Fast case, write everything using _writev()\n    var l = state.bufferedRequestCount;\n    var buffer = new Array(l);\n    var holder = state.corkedRequestsFree;\n    holder.entry = entry;\n\n    var count = 0;\n    var allBuffers = true;\n    while (entry) {\n      buffer[count] = entry;\n      if (!entry.isBuf) allBuffers = false;\n      entry = entry.next;\n      count += 1;\n    }\n    buffer.allBuffers = allBuffers;\n\n    doWrite(stream, state, true, state.length, buffer, '', holder.finish);\n\n    // doWrite is almost always async, defer these to save a bit of time\n    // as the hot path ends with doWrite\n    state.pendingcb++;\n    state.lastBufferedRequest = null;\n    if (holder.next) {\n      state.corkedRequestsFree = holder.next;\n      holder.next = null;\n    } else {\n      state.corkedRequestsFree = new CorkedRequest(state);\n    }\n    state.bufferedRequestCount = 0;\n  } else {\n    // Slow case, write chunks one-by-one\n    while (entry) {\n      var chunk = entry.chunk;\n      var encoding = entry.encoding;\n      var cb = entry.callback;\n      var len = state.objectMode ? 1 : chunk.length;\n\n      doWrite(stream, state, false, len, chunk, encoding, cb);\n      entry = entry.next;\n      state.bufferedRequestCount--;\n      // if we didn't call the onwrite immediately, then\n      // it means that we need to wait until it does.\n      // also, that means that the chunk and cb are currently\n      // being processed, so move the buffer counter past them.\n      if (state.writing) {\n        break;\n      }\n    }\n\n    if (entry === null) state.lastBufferedRequest = null;\n  }\n\n  state.bufferedRequest = entry;\n  state.bufferProcessing = false;\n}\n\nWritable.prototype._write = function (chunk, encoding, cb) {\n  cb(new Error('_write() is not implemented'));\n};\n\nWritable.prototype._writev = null;\n\nWritable.prototype.end = function (chunk, encoding, cb) {\n  var state = this._writableState;\n\n  if (typeof chunk === 'function') {\n    cb = chunk;\n    chunk = null;\n    encoding = null;\n  } else if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);\n\n  // .end() fully uncorks\n  if (state.corked) {\n    state.corked = 1;\n    this.uncork();\n  }\n\n  // ignore unnecessary end() calls.\n  if (!state.ending && !state.finished) endWritable(this, state, cb);\n};\n\nfunction needFinish(state) {\n  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;\n}\nfunction callFinal(stream, state) {\n  stream._final(function (err) {\n    state.pendingcb--;\n    if (err) {\n      stream.emit('error', err);\n    }\n    state.prefinished = true;\n    stream.emit('prefinish');\n    finishMaybe(stream, state);\n  });\n}\nfunction prefinish(stream, state) {\n  if (!state.prefinished && !state.finalCalled) {\n    if (typeof stream._final === 'function') {\n      state.pendingcb++;\n      state.finalCalled = true;\n      pna.nextTick(callFinal, stream, state);\n    } else {\n      state.prefinished = true;\n      stream.emit('prefinish');\n    }\n  }\n}\n\nfunction finishMaybe(stream, state) {\n  var need = needFinish(state);\n  if (need) {\n    prefinish(stream, state);\n    if (state.pendingcb === 0) {\n      state.finished = true;\n      stream.emit('finish');\n    }\n  }\n  return need;\n}\n\nfunction endWritable(stream, state, cb) {\n  state.ending = true;\n  finishMaybe(stream, state);\n  if (cb) {\n    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);\n  }\n  state.ended = true;\n  stream.writable = false;\n}\n\nfunction onCorkedFinish(corkReq, state, err) {\n  var entry = corkReq.entry;\n  corkReq.entry = null;\n  while (entry) {\n    var cb = entry.callback;\n    state.pendingcb--;\n    cb(err);\n    entry = entry.next;\n  }\n  if (state.corkedRequestsFree) {\n    state.corkedRequestsFree.next = corkReq;\n  } else {\n    state.corkedRequestsFree = corkReq;\n  }\n}\n\nObject.defineProperty(Writable.prototype, 'destroyed', {\n  get: function () {\n    if (this._writableState === undefined) {\n      return false;\n    }\n    return this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._writableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._writableState.destroyed = value;\n  }\n});\n\nWritable.prototype.destroy = destroyImpl.destroy;\nWritable.prototype._undestroy = destroyImpl.undestroy;\nWritable.prototype._destroy = function (err, cb) {\n  this.end();\n  cb(err);\n};","'use strict';\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Buffer = require('safe-buffer').Buffer;\nvar util = require('util');\n\nfunction copyBuffer(src, target, offset) {\n  src.copy(target, offset);\n}\n\nmodule.exports = function () {\n  function BufferList() {\n    _classCallCheck(this, BufferList);\n\n    this.head = null;\n    this.tail = null;\n    this.length = 0;\n  }\n\n  BufferList.prototype.push = function push(v) {\n    var entry = { data: v, next: null };\n    if (this.length > 0) this.tail.next = entry;else this.head = entry;\n    this.tail = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.unshift = function unshift(v) {\n    var entry = { data: v, next: this.head };\n    if (this.length === 0) this.tail = entry;\n    this.head = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.shift = function shift() {\n    if (this.length === 0) return;\n    var ret = this.head.data;\n    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;\n    --this.length;\n    return ret;\n  };\n\n  BufferList.prototype.clear = function clear() {\n    this.head = this.tail = null;\n    this.length = 0;\n  };\n\n  BufferList.prototype.join = function join(s) {\n    if (this.length === 0) return '';\n    var p = this.head;\n    var ret = '' + p.data;\n    while (p = p.next) {\n      ret += s + p.data;\n    }return ret;\n  };\n\n  BufferList.prototype.concat = function concat(n) {\n    if (this.length === 0) return Buffer.alloc(0);\n    if (this.length === 1) return this.head.data;\n    var ret = Buffer.allocUnsafe(n >>> 0);\n    var p = this.head;\n    var i = 0;\n    while (p) {\n      copyBuffer(p.data, ret, i);\n      i += p.data.length;\n      p = p.next;\n    }\n    return ret;\n  };\n\n  return BufferList;\n}();\n\nif (util && util.inspect && util.inspect.custom) {\n  module.exports.prototype[util.inspect.custom] = function () {\n    var obj = util.inspect({ length: this.length });\n    return this.constructor.name + ' ' + obj;\n  };\n}","'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n// undocumented cb() API, needed for core, not for public API\nfunction destroy(err, cb) {\n  var _this = this;\n\n  var readableDestroyed = this._readableState && this._readableState.destroyed;\n  var writableDestroyed = this._writableState && this._writableState.destroyed;\n\n  if (readableDestroyed || writableDestroyed) {\n    if (cb) {\n      cb(err);\n    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {\n      pna.nextTick(emitErrorNT, this, err);\n    }\n    return this;\n  }\n\n  // we set destroyed to true before firing error callbacks in order\n  // to make it re-entrance safe in case destroy() is called within callbacks\n\n  if (this._readableState) {\n    this._readableState.destroyed = true;\n  }\n\n  // if this is a duplex stream mark the writable part as destroyed as well\n  if (this._writableState) {\n    this._writableState.destroyed = true;\n  }\n\n  this._destroy(err || null, function (err) {\n    if (!cb && err) {\n      pna.nextTick(emitErrorNT, _this, err);\n      if (_this._writableState) {\n        _this._writableState.errorEmitted = true;\n      }\n    } else if (cb) {\n      cb(err);\n    }\n  });\n\n  return this;\n}\n\nfunction undestroy() {\n  if (this._readableState) {\n    this._readableState.destroyed = false;\n    this._readableState.reading = false;\n    this._readableState.ended = false;\n    this._readableState.endEmitted = false;\n  }\n\n  if (this._writableState) {\n    this._writableState.destroyed = false;\n    this._writableState.ended = false;\n    this._writableState.ending = false;\n    this._writableState.finished = false;\n    this._writableState.errorEmitted = false;\n  }\n}\n\nfunction emitErrorNT(self, err) {\n  self.emit('error', err);\n}\n\nmodule.exports = {\n  destroy: destroy,\n  undestroy: undestroy\n};","module.exports = require('events').EventEmitter;\n","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n","/* eslint-disable node/no-deprecated-api */\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\n// alternative to using Object.keys for old browsers\nfunction copyProps (src, dst) {\n  for (var key in src) {\n    dst[key] = src[key]\n  }\n}\nif (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {\n  module.exports = buffer\n} else {\n  // Copy properties from require('buffer')\n  copyProps(buffer, exports)\n  exports.Buffer = SafeBuffer\n}\n\nfunction SafeBuffer (arg, encodingOrOffset, length) {\n  return Buffer(arg, encodingOrOffset, length)\n}\n\n// Copy static methods from Buffer\ncopyProps(Buffer, SafeBuffer)\n\nSafeBuffer.from = function (arg, encodingOrOffset, length) {\n  if (typeof arg === 'number') {\n    throw new TypeError('Argument must not be a number')\n  }\n  return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.alloc = function (size, fill, encoding) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  var buf = Buffer(size)\n  if (fill !== undefined) {\n    if (typeof encoding === 'string') {\n      buf.fill(fill, encoding)\n    } else {\n      buf.fill(fill)\n    }\n  } else {\n    buf.fill(0)\n  }\n  return buf\n}\n\nSafeBuffer.allocUnsafe = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return Buffer(size)\n}\n\nSafeBuffer.allocUnsafeSlow = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return buffer.SlowBuffer(size)\n}\n","module.exports = require('./readable').PassThrough\n","exports = module.exports = require('./lib/_stream_readable.js');\nexports.Stream = exports;\nexports.Readable = exports;\nexports.Writable = require('./lib/_stream_writable.js');\nexports.Duplex = require('./lib/_stream_duplex.js');\nexports.Transform = require('./lib/_stream_transform.js');\nexports.PassThrough = require('./lib/_stream_passthrough.js');\n","module.exports = require('./readable').Transform\n","module.exports = require('./lib/_stream_writable.js');\n","'use strict'\nvar Buffer = require('buffer').Buffer\nvar inherits = require('inherits')\nvar HashBase = require('hash-base')\n\nvar ARRAY16 = new Array(16)\n\nvar zl = [\n  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,\n  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,\n  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,\n  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,\n  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13\n]\n\nvar zr = [\n  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,\n  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,\n  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,\n  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,\n  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11\n]\n\nvar sl = [\n  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,\n  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,\n  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,\n  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,\n  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6\n]\n\nvar sr = [\n  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,\n  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,\n  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,\n  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,\n  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11\n]\n\nvar hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]\nvar hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000]\n\nfunction RIPEMD160 () {\n  HashBase.call(this, 64)\n\n  // state\n  this._a = 0x67452301\n  this._b = 0xefcdab89\n  this._c = 0x98badcfe\n  this._d = 0x10325476\n  this._e = 0xc3d2e1f0\n}\n\ninherits(RIPEMD160, HashBase)\n\nRIPEMD160.prototype._update = function () {\n  var words = ARRAY16\n  for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4)\n\n  var al = this._a | 0\n  var bl = this._b | 0\n  var cl = this._c | 0\n  var dl = this._d | 0\n  var el = this._e | 0\n\n  var ar = this._a | 0\n  var br = this._b | 0\n  var cr = this._c | 0\n  var dr = this._d | 0\n  var er = this._e | 0\n\n  // computation\n  for (var i = 0; i < 80; i += 1) {\n    var tl\n    var tr\n    if (i < 16) {\n      tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i])\n      tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i])\n    } else if (i < 32) {\n      tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i])\n      tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i])\n    } else if (i < 48) {\n      tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i])\n      tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i])\n    } else if (i < 64) {\n      tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i])\n      tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i])\n    } else { // if (i<80) {\n      tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i])\n      tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i])\n    }\n\n    al = el\n    el = dl\n    dl = rotl(cl, 10)\n    cl = bl\n    bl = tl\n\n    ar = er\n    er = dr\n    dr = rotl(cr, 10)\n    cr = br\n    br = tr\n  }\n\n  // update state\n  var t = (this._b + cl + dr) | 0\n  this._b = (this._c + dl + er) | 0\n  this._c = (this._d + el + ar) | 0\n  this._d = (this._e + al + br) | 0\n  this._e = (this._a + bl + cr) | 0\n  this._a = t\n}\n\nRIPEMD160.prototype._digest = function () {\n  // create padding and handle blocks\n  this._block[this._blockOffset++] = 0x80\n  if (this._blockOffset > 56) {\n    this._block.fill(0, this._blockOffset, 64)\n    this._update()\n    this._blockOffset = 0\n  }\n\n  this._block.fill(0, this._blockOffset, 56)\n  this._block.writeUInt32LE(this._length[0], 56)\n  this._block.writeUInt32LE(this._length[1], 60)\n  this._update()\n\n  // produce result\n  var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20)\n  buffer.writeInt32LE(this._a, 0)\n  buffer.writeInt32LE(this._b, 4)\n  buffer.writeInt32LE(this._c, 8)\n  buffer.writeInt32LE(this._d, 12)\n  buffer.writeInt32LE(this._e, 16)\n  return buffer\n}\n\nfunction rotl (x, n) {\n  return (x << n) | (x >>> (32 - n))\n}\n\nfunction fn1 (a, b, c, d, e, m, k, s) {\n  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0\n}\n\nfunction fn2 (a, b, c, d, e, m, k, s) {\n  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0\n}\n\nfunction fn3 (a, b, c, d, e, m, k, s) {\n  return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0\n}\n\nfunction fn4 (a, b, c, d, e, m, k, s) {\n  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0\n}\n\nfunction fn5 (a, b, c, d, e, m, k, s) {\n  return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0\n}\n\nmodule.exports = RIPEMD160\n","/* eslint-disable node/no-deprecated-api */\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\n// alternative to using Object.keys for old browsers\nfunction copyProps (src, dst) {\n  for (var key in src) {\n    dst[key] = src[key]\n  }\n}\nif (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {\n  module.exports = buffer\n} else {\n  // Copy properties from require('buffer')\n  copyProps(buffer, exports)\n  exports.Buffer = SafeBuffer\n}\n\nfunction SafeBuffer (arg, encodingOrOffset, length) {\n  return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.prototype = Object.create(Buffer.prototype)\n\n// Copy static methods from Buffer\ncopyProps(Buffer, SafeBuffer)\n\nSafeBuffer.from = function (arg, encodingOrOffset, length) {\n  if (typeof arg === 'number') {\n    throw new TypeError('Argument must not be a number')\n  }\n  return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.alloc = function (size, fill, encoding) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  var buf = Buffer(size)\n  if (fill !== undefined) {\n    if (typeof encoding === 'string') {\n      buf.fill(fill, encoding)\n    } else {\n      buf.fill(fill)\n    }\n  } else {\n    buf.fill(0)\n  }\n  return buf\n}\n\nSafeBuffer.allocUnsafe = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return Buffer(size)\n}\n\nSafeBuffer.allocUnsafeSlow = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return buffer.SlowBuffer(size)\n}\n","var Buffer = require('safe-buffer').Buffer\n\n// prototype class for hash functions\nfunction Hash (blockSize, finalSize) {\n  this._block = Buffer.alloc(blockSize)\n  this._finalSize = finalSize\n  this._blockSize = blockSize\n  this._len = 0\n}\n\nHash.prototype.update = function (data, enc) {\n  if (typeof data === 'string') {\n    enc = enc || 'utf8'\n    data = Buffer.from(data, enc)\n  }\n\n  var block = this._block\n  var blockSize = this._blockSize\n  var length = data.length\n  var accum = this._len\n\n  for (var offset = 0; offset < length;) {\n    var assigned = accum % blockSize\n    var remainder = Math.min(length - offset, blockSize - assigned)\n\n    for (var i = 0; i < remainder; i++) {\n      block[assigned + i] = data[offset + i]\n    }\n\n    accum += remainder\n    offset += remainder\n\n    if ((accum % blockSize) === 0) {\n      this._update(block)\n    }\n  }\n\n  this._len += length\n  return this\n}\n\nHash.prototype.digest = function (enc) {\n  var rem = this._len % this._blockSize\n\n  this._block[rem] = 0x80\n\n  // zero (rem + 1) trailing bits, where (rem + 1) is the smallest\n  // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize\n  this._block.fill(0, rem + 1)\n\n  if (rem >= this._finalSize) {\n    this._update(this._block)\n    this._block.fill(0)\n  }\n\n  var bits = this._len * 8\n\n  // uint32\n  if (bits <= 0xffffffff) {\n    this._block.writeUInt32BE(bits, this._blockSize - 4)\n\n  // uint64\n  } else {\n    var lowBits = (bits & 0xffffffff) >>> 0\n    var highBits = (bits - lowBits) / 0x100000000\n\n    this._block.writeUInt32BE(highBits, this._blockSize - 8)\n    this._block.writeUInt32BE(lowBits, this._blockSize - 4)\n  }\n\n  this._update(this._block)\n  var hash = this._hash()\n\n  return enc ? hash.toString(enc) : hash\n}\n\nHash.prototype._update = function () {\n  throw new Error('_update must be implemented by subclass')\n}\n\nmodule.exports = Hash\n","var exports = module.exports = function SHA (algorithm) {\n  algorithm = algorithm.toLowerCase()\n\n  var Algorithm = exports[algorithm]\n  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')\n\n  return new Algorithm()\n}\n\nexports.sha = require('./sha')\nexports.sha1 = require('./sha1')\nexports.sha224 = require('./sha224')\nexports.sha256 = require('./sha256')\nexports.sha384 = require('./sha384')\nexports.sha512 = require('./sha512')\n","/*\n * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined\n * in FIPS PUB 180-1\n * This source code is derived from sha1.js of the same repository.\n * The difference between SHA-0 and SHA-1 is just a bitwise rotate left\n * operation was added.\n */\n\nvar inherits = require('inherits')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar K = [\n  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0\n]\n\nvar W = new Array(80)\n\nfunction Sha () {\n  this.init()\n  this._w = W\n\n  Hash.call(this, 64, 56)\n}\n\ninherits(Sha, Hash)\n\nSha.prototype.init = function () {\n  this._a = 0x67452301\n  this._b = 0xefcdab89\n  this._c = 0x98badcfe\n  this._d = 0x10325476\n  this._e = 0xc3d2e1f0\n\n  return this\n}\n\nfunction rotl5 (num) {\n  return (num << 5) | (num >>> 27)\n}\n\nfunction rotl30 (num) {\n  return (num << 30) | (num >>> 2)\n}\n\nfunction ft (s, b, c, d) {\n  if (s === 0) return (b & c) | ((~b) & d)\n  if (s === 2) return (b & c) | (b & d) | (c & d)\n  return b ^ c ^ d\n}\n\nSha.prototype._update = function (M) {\n  var W = this._w\n\n  var a = this._a | 0\n  var b = this._b | 0\n  var c = this._c | 0\n  var d = this._d | 0\n  var e = this._e | 0\n\n  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)\n  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]\n\n  for (var j = 0; j < 80; ++j) {\n    var s = ~~(j / 20)\n    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0\n\n    e = d\n    d = c\n    c = rotl30(b)\n    b = a\n    a = t\n  }\n\n  this._a = (a + this._a) | 0\n  this._b = (b + this._b) | 0\n  this._c = (c + this._c) | 0\n  this._d = (d + this._d) | 0\n  this._e = (e + this._e) | 0\n}\n\nSha.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(20)\n\n  H.writeInt32BE(this._a | 0, 0)\n  H.writeInt32BE(this._b | 0, 4)\n  H.writeInt32BE(this._c | 0, 8)\n  H.writeInt32BE(this._d | 0, 12)\n  H.writeInt32BE(this._e | 0, 16)\n\n  return H\n}\n\nmodule.exports = Sha\n","/*\n * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined\n * in FIPS PUB 180-1\n * Version 2.1a Copyright Paul Johnston 2000 - 2002.\n * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet\n * Distributed under the BSD License\n * See http://pajhome.org.uk/crypt/md5 for details.\n */\n\nvar inherits = require('inherits')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar K = [\n  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0\n]\n\nvar W = new Array(80)\n\nfunction Sha1 () {\n  this.init()\n  this._w = W\n\n  Hash.call(this, 64, 56)\n}\n\ninherits(Sha1, Hash)\n\nSha1.prototype.init = function () {\n  this._a = 0x67452301\n  this._b = 0xefcdab89\n  this._c = 0x98badcfe\n  this._d = 0x10325476\n  this._e = 0xc3d2e1f0\n\n  return this\n}\n\nfunction rotl1 (num) {\n  return (num << 1) | (num >>> 31)\n}\n\nfunction rotl5 (num) {\n  return (num << 5) | (num >>> 27)\n}\n\nfunction rotl30 (num) {\n  return (num << 30) | (num >>> 2)\n}\n\nfunction ft (s, b, c, d) {\n  if (s === 0) return (b & c) | ((~b) & d)\n  if (s === 2) return (b & c) | (b & d) | (c & d)\n  return b ^ c ^ d\n}\n\nSha1.prototype._update = function (M) {\n  var W = this._w\n\n  var a = this._a | 0\n  var b = this._b | 0\n  var c = this._c | 0\n  var d = this._d | 0\n  var e = this._e | 0\n\n  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)\n  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])\n\n  for (var j = 0; j < 80; ++j) {\n    var s = ~~(j / 20)\n    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0\n\n    e = d\n    d = c\n    c = rotl30(b)\n    b = a\n    a = t\n  }\n\n  this._a = (a + this._a) | 0\n  this._b = (b + this._b) | 0\n  this._c = (c + this._c) | 0\n  this._d = (d + this._d) | 0\n  this._e = (e + this._e) | 0\n}\n\nSha1.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(20)\n\n  H.writeInt32BE(this._a | 0, 0)\n  H.writeInt32BE(this._b | 0, 4)\n  H.writeInt32BE(this._c | 0, 8)\n  H.writeInt32BE(this._d | 0, 12)\n  H.writeInt32BE(this._e | 0, 16)\n\n  return H\n}\n\nmodule.exports = Sha1\n","/**\n * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined\n * in FIPS 180-2\n * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.\n * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet\n *\n */\n\nvar inherits = require('inherits')\nvar Sha256 = require('./sha256')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar W = new Array(64)\n\nfunction Sha224 () {\n  this.init()\n\n  this._w = W // new Array(64)\n\n  Hash.call(this, 64, 56)\n}\n\ninherits(Sha224, Sha256)\n\nSha224.prototype.init = function () {\n  this._a = 0xc1059ed8\n  this._b = 0x367cd507\n  this._c = 0x3070dd17\n  this._d = 0xf70e5939\n  this._e = 0xffc00b31\n  this._f = 0x68581511\n  this._g = 0x64f98fa7\n  this._h = 0xbefa4fa4\n\n  return this\n}\n\nSha224.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(28)\n\n  H.writeInt32BE(this._a, 0)\n  H.writeInt32BE(this._b, 4)\n  H.writeInt32BE(this._c, 8)\n  H.writeInt32BE(this._d, 12)\n  H.writeInt32BE(this._e, 16)\n  H.writeInt32BE(this._f, 20)\n  H.writeInt32BE(this._g, 24)\n\n  return H\n}\n\nmodule.exports = Sha224\n","/**\n * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined\n * in FIPS 180-2\n * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.\n * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet\n *\n */\n\nvar inherits = require('inherits')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar K = [\n  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,\n  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,\n  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,\n  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,\n  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,\n  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,\n  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,\n  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,\n  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,\n  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,\n  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,\n  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,\n  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,\n  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,\n  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,\n  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2\n]\n\nvar W = new Array(64)\n\nfunction Sha256 () {\n  this.init()\n\n  this._w = W // new Array(64)\n\n  Hash.call(this, 64, 56)\n}\n\ninherits(Sha256, Hash)\n\nSha256.prototype.init = function () {\n  this._a = 0x6a09e667\n  this._b = 0xbb67ae85\n  this._c = 0x3c6ef372\n  this._d = 0xa54ff53a\n  this._e = 0x510e527f\n  this._f = 0x9b05688c\n  this._g = 0x1f83d9ab\n  this._h = 0x5be0cd19\n\n  return this\n}\n\nfunction ch (x, y, z) {\n  return z ^ (x & (y ^ z))\n}\n\nfunction maj (x, y, z) {\n  return (x & y) | (z & (x | y))\n}\n\nfunction sigma0 (x) {\n  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)\n}\n\nfunction sigma1 (x) {\n  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)\n}\n\nfunction gamma0 (x) {\n  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)\n}\n\nfunction gamma1 (x) {\n  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)\n}\n\nSha256.prototype._update = function (M) {\n  var W = this._w\n\n  var a = this._a | 0\n  var b = this._b | 0\n  var c = this._c | 0\n  var d = this._d | 0\n  var e = this._e | 0\n  var f = this._f | 0\n  var g = this._g | 0\n  var h = this._h | 0\n\n  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)\n  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0\n\n  for (var j = 0; j < 64; ++j) {\n    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0\n    var T2 = (sigma0(a) + maj(a, b, c)) | 0\n\n    h = g\n    g = f\n    f = e\n    e = (d + T1) | 0\n    d = c\n    c = b\n    b = a\n    a = (T1 + T2) | 0\n  }\n\n  this._a = (a + this._a) | 0\n  this._b = (b + this._b) | 0\n  this._c = (c + this._c) | 0\n  this._d = (d + this._d) | 0\n  this._e = (e + this._e) | 0\n  this._f = (f + this._f) | 0\n  this._g = (g + this._g) | 0\n  this._h = (h + this._h) | 0\n}\n\nSha256.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(32)\n\n  H.writeInt32BE(this._a, 0)\n  H.writeInt32BE(this._b, 4)\n  H.writeInt32BE(this._c, 8)\n  H.writeInt32BE(this._d, 12)\n  H.writeInt32BE(this._e, 16)\n  H.writeInt32BE(this._f, 20)\n  H.writeInt32BE(this._g, 24)\n  H.writeInt32BE(this._h, 28)\n\n  return H\n}\n\nmodule.exports = Sha256\n","var inherits = require('inherits')\nvar SHA512 = require('./sha512')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar W = new Array(160)\n\nfunction Sha384 () {\n  this.init()\n  this._w = W\n\n  Hash.call(this, 128, 112)\n}\n\ninherits(Sha384, SHA512)\n\nSha384.prototype.init = function () {\n  this._ah = 0xcbbb9d5d\n  this._bh = 0x629a292a\n  this._ch = 0x9159015a\n  this._dh = 0x152fecd8\n  this._eh = 0x67332667\n  this._fh = 0x8eb44a87\n  this._gh = 0xdb0c2e0d\n  this._hh = 0x47b5481d\n\n  this._al = 0xc1059ed8\n  this._bl = 0x367cd507\n  this._cl = 0x3070dd17\n  this._dl = 0xf70e5939\n  this._el = 0xffc00b31\n  this._fl = 0x68581511\n  this._gl = 0x64f98fa7\n  this._hl = 0xbefa4fa4\n\n  return this\n}\n\nSha384.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(48)\n\n  function writeInt64BE (h, l, offset) {\n    H.writeInt32BE(h, offset)\n    H.writeInt32BE(l, offset + 4)\n  }\n\n  writeInt64BE(this._ah, this._al, 0)\n  writeInt64BE(this._bh, this._bl, 8)\n  writeInt64BE(this._ch, this._cl, 16)\n  writeInt64BE(this._dh, this._dl, 24)\n  writeInt64BE(this._eh, this._el, 32)\n  writeInt64BE(this._fh, this._fl, 40)\n\n  return H\n}\n\nmodule.exports = Sha384\n","var inherits = require('inherits')\nvar Hash = require('./hash')\nvar Buffer = require('safe-buffer').Buffer\n\nvar K = [\n  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,\n  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,\n  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,\n  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,\n  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,\n  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,\n  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,\n  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,\n  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,\n  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,\n  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,\n  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,\n  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,\n  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,\n  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,\n  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,\n  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,\n  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,\n  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,\n  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,\n  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,\n  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,\n  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,\n  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,\n  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,\n  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,\n  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,\n  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,\n  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,\n  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,\n  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,\n  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,\n  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,\n  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,\n  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,\n  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,\n  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,\n  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,\n  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,\n  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817\n]\n\nvar W = new Array(160)\n\nfunction Sha512 () {\n  this.init()\n  this._w = W\n\n  Hash.call(this, 128, 112)\n}\n\ninherits(Sha512, Hash)\n\nSha512.prototype.init = function () {\n  this._ah = 0x6a09e667\n  this._bh = 0xbb67ae85\n  this._ch = 0x3c6ef372\n  this._dh = 0xa54ff53a\n  this._eh = 0x510e527f\n  this._fh = 0x9b05688c\n  this._gh = 0x1f83d9ab\n  this._hh = 0x5be0cd19\n\n  this._al = 0xf3bcc908\n  this._bl = 0x84caa73b\n  this._cl = 0xfe94f82b\n  this._dl = 0x5f1d36f1\n  this._el = 0xade682d1\n  this._fl = 0x2b3e6c1f\n  this._gl = 0xfb41bd6b\n  this._hl = 0x137e2179\n\n  return this\n}\n\nfunction Ch (x, y, z) {\n  return z ^ (x & (y ^ z))\n}\n\nfunction maj (x, y, z) {\n  return (x & y) | (z & (x | y))\n}\n\nfunction sigma0 (x, xl) {\n  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)\n}\n\nfunction sigma1 (x, xl) {\n  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)\n}\n\nfunction Gamma0 (x, xl) {\n  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)\n}\n\nfunction Gamma0l (x, xl) {\n  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)\n}\n\nfunction Gamma1 (x, xl) {\n  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)\n}\n\nfunction Gamma1l (x, xl) {\n  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)\n}\n\nfunction getCarry (a, b) {\n  return (a >>> 0) < (b >>> 0) ? 1 : 0\n}\n\nSha512.prototype._update = function (M) {\n  var W = this._w\n\n  var ah = this._ah | 0\n  var bh = this._bh | 0\n  var ch = this._ch | 0\n  var dh = this._dh | 0\n  var eh = this._eh | 0\n  var fh = this._fh | 0\n  var gh = this._gh | 0\n  var hh = this._hh | 0\n\n  var al = this._al | 0\n  var bl = this._bl | 0\n  var cl = this._cl | 0\n  var dl = this._dl | 0\n  var el = this._el | 0\n  var fl = this._fl | 0\n  var gl = this._gl | 0\n  var hl = this._hl | 0\n\n  for (var i = 0; i < 32; i += 2) {\n    W[i] = M.readInt32BE(i * 4)\n    W[i + 1] = M.readInt32BE(i * 4 + 4)\n  }\n  for (; i < 160; i += 2) {\n    var xh = W[i - 15 * 2]\n    var xl = W[i - 15 * 2 + 1]\n    var gamma0 = Gamma0(xh, xl)\n    var gamma0l = Gamma0l(xl, xh)\n\n    xh = W[i - 2 * 2]\n    xl = W[i - 2 * 2 + 1]\n    var gamma1 = Gamma1(xh, xl)\n    var gamma1l = Gamma1l(xl, xh)\n\n    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]\n    var Wi7h = W[i - 7 * 2]\n    var Wi7l = W[i - 7 * 2 + 1]\n\n    var Wi16h = W[i - 16 * 2]\n    var Wi16l = W[i - 16 * 2 + 1]\n\n    var Wil = (gamma0l + Wi7l) | 0\n    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0\n    Wil = (Wil + gamma1l) | 0\n    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0\n    Wil = (Wil + Wi16l) | 0\n    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0\n\n    W[i] = Wih\n    W[i + 1] = Wil\n  }\n\n  for (var j = 0; j < 160; j += 2) {\n    Wih = W[j]\n    Wil = W[j + 1]\n\n    var majh = maj(ah, bh, ch)\n    var majl = maj(al, bl, cl)\n\n    var sigma0h = sigma0(ah, al)\n    var sigma0l = sigma0(al, ah)\n    var sigma1h = sigma1(eh, el)\n    var sigma1l = sigma1(el, eh)\n\n    // t1 = h + sigma1 + ch + K[j] + W[j]\n    var Kih = K[j]\n    var Kil = K[j + 1]\n\n    var chh = Ch(eh, fh, gh)\n    var chl = Ch(el, fl, gl)\n\n    var t1l = (hl + sigma1l) | 0\n    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0\n    t1l = (t1l + chl) | 0\n    t1h = (t1h + chh + getCarry(t1l, chl)) | 0\n    t1l = (t1l + Kil) | 0\n    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0\n    t1l = (t1l + Wil) | 0\n    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0\n\n    // t2 = sigma0 + maj\n    var t2l = (sigma0l + majl) | 0\n    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0\n\n    hh = gh\n    hl = gl\n    gh = fh\n    gl = fl\n    fh = eh\n    fl = el\n    el = (dl + t1l) | 0\n    eh = (dh + t1h + getCarry(el, dl)) | 0\n    dh = ch\n    dl = cl\n    ch = bh\n    cl = bl\n    bh = ah\n    bl = al\n    al = (t1l + t2l) | 0\n    ah = (t1h + t2h + getCarry(al, t1l)) | 0\n  }\n\n  this._al = (this._al + al) | 0\n  this._bl = (this._bl + bl) | 0\n  this._cl = (this._cl + cl) | 0\n  this._dl = (this._dl + dl) | 0\n  this._el = (this._el + el) | 0\n  this._fl = (this._fl + fl) | 0\n  this._gl = (this._gl + gl) | 0\n  this._hl = (this._hl + hl) | 0\n\n  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0\n  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0\n  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0\n  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0\n  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0\n  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0\n  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0\n  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0\n}\n\nSha512.prototype._hash = function () {\n  var H = Buffer.allocUnsafe(64)\n\n  function writeInt64BE (h, l, offset) {\n    H.writeInt32BE(h, offset)\n    H.writeInt32BE(l, offset + 4)\n  }\n\n  writeInt64BE(this._ah, this._al, 0)\n  writeInt64BE(this._bh, this._bl, 8)\n  writeInt64BE(this._ch, this._cl, 16)\n  writeInt64BE(this._dh, this._dl, 24)\n  writeInt64BE(this._eh, this._el, 32)\n  writeInt64BE(this._fh, this._fl, 40)\n  writeInt64BE(this._gh, this._gl, 48)\n  writeInt64BE(this._hh, this._hl, 56)\n\n  return H\n}\n\nmodule.exports = Sha512\n","\"use strict\";var sjcl={cipher:{},hash:{},keyexchange:{},mode:{},misc:{},codec:{},exception:{corrupt:function(a){this.toString=function(){return\"CORRUPT: \"+this.message};this.message=a},invalid:function(a){this.toString=function(){return\"INVALID: \"+this.message};this.message=a},bug:function(a){this.toString=function(){return\"BUG: \"+this.message};this.message=a},notReady:function(a){this.toString=function(){return\"NOT READY: \"+this.message};this.message=a}}};\nsjcl.cipher.aes=function(a){this.s[0][0][0]||this.O();var b,c,d,e,f=this.s[0][4],g=this.s[1];b=a.length;var h=1;if(4!==b&&6!==b&&8!==b)throw new sjcl.exception.invalid(\"invalid aes key size\");this.b=[d=a.slice(0),e=[]];for(a=b;a<4*b+28;a++){c=d[a-1];if(0===a%b||8===b&&4===a%b)c=f[c>>>24]<<24^f[c>>16&255]<<16^f[c>>8&255]<<8^f[c&255],0===a%b&&(c=c<<8^c>>>24^h<<24,h=h<<1^283*(h>>7));d[a]=d[a-b]^c}for(b=0;a;b++,a--)c=d[b&3?a:a-4],e[b]=4>=a||4>b?c:g[0][f[c>>>24]]^g[1][f[c>>16&255]]^g[2][f[c>>8&255]]^g[3][f[c&\n255]]};\nsjcl.cipher.aes.prototype={encrypt:function(a){return t(this,a,0)},decrypt:function(a){return t(this,a,1)},s:[[[],[],[],[],[]],[[],[],[],[],[]]],O:function(){var a=this.s[0],b=this.s[1],c=a[4],d=b[4],e,f,g,h=[],k=[],l,n,m,p;for(e=0;0x100>e;e++)k[(h[e]=e<<1^283*(e>>7))^e]=e;for(f=g=0;!c[f];f^=l||1,g=k[g]||1)for(m=g^g<<1^g<<2^g<<3^g<<4,m=m>>8^m&255^99,c[f]=m,d[m]=f,n=h[e=h[l=h[f]]],p=0x1010101*n^0x10001*e^0x101*l^0x1010100*f,n=0x101*h[m]^0x1010100*m,e=0;4>e;e++)a[e][f]=n=n<<24^n>>>8,b[e][m]=p=p<<24^p>>>8;for(e=\n0;5>e;e++)a[e]=a[e].slice(0),b[e]=b[e].slice(0)}};\nfunction t(a,b,c){if(4!==b.length)throw new sjcl.exception.invalid(\"invalid aes block size\");var d=a.b[c],e=b[0]^d[0],f=b[c?3:1]^d[1],g=b[2]^d[2];b=b[c?1:3]^d[3];var h,k,l,n=d.length/4-2,m,p=4,r=[0,0,0,0];h=a.s[c];a=h[0];var q=h[1],v=h[2],w=h[3],x=h[4];for(m=0;m<n;m++)h=a[e>>>24]^q[f>>16&255]^v[g>>8&255]^w[b&255]^d[p],k=a[f>>>24]^q[g>>16&255]^v[b>>8&255]^w[e&255]^d[p+1],l=a[g>>>24]^q[b>>16&255]^v[e>>8&255]^w[f&255]^d[p+2],b=a[b>>>24]^q[e>>16&255]^v[f>>8&255]^w[g&255]^d[p+3],p+=4,e=h,f=k,g=l;for(m=\n0;4>m;m++)r[c?3&-m:m]=x[e>>>24]<<24^x[f>>16&255]<<16^x[g>>8&255]<<8^x[b&255]^d[p++],h=e,e=f,f=g,g=b,b=h;return r}\nsjcl.bitArray={bitSlice:function(a,b,c){a=sjcl.bitArray.$(a.slice(b/32),32-(b&31)).slice(1);return void 0===c?a:sjcl.bitArray.clamp(a,c-b)},extract:function(a,b,c){var d=Math.floor(-b-c&31);return((b+c-1^b)&-32?a[b/32|0]<<32-d^a[b/32+1|0]>>>d:a[b/32|0]>>>d)&(1<<c)-1},concat:function(a,b){if(0===a.length||0===b.length)return a.concat(b);var c=a[a.length-1],d=sjcl.bitArray.getPartial(c);return 32===d?a.concat(b):sjcl.bitArray.$(b,d,c|0,a.slice(0,a.length-1))},bitLength:function(a){var b=a.length;return 0===\nb?0:32*(b-1)+sjcl.bitArray.getPartial(a[b-1])},clamp:function(a,b){if(32*a.length<b)return a;a=a.slice(0,Math.ceil(b/32));var c=a.length;b=b&31;0<c&&b&&(a[c-1]=sjcl.bitArray.partial(b,a[c-1]&2147483648>>b-1,1));return a},partial:function(a,b,c){return 32===a?b:(c?b|0:b<<32-a)+0x10000000000*a},getPartial:function(a){return Math.round(a/0x10000000000)||32},equal:function(a,b){if(sjcl.bitArray.bitLength(a)!==sjcl.bitArray.bitLength(b))return!1;var c=0,d;for(d=0;d<a.length;d++)c|=a[d]^b[d];return 0===\nc},$:function(a,b,c,d){var e;e=0;for(void 0===d&&(d=[]);32<=b;b-=32)d.push(c),c=0;if(0===b)return d.concat(a);for(e=0;e<a.length;e++)d.push(c|a[e]>>>b),c=a[e]<<32-b;e=a.length?a[a.length-1]:0;a=sjcl.bitArray.getPartial(e);d.push(sjcl.bitArray.partial(b+a&31,32<b+a?c:d.pop(),1));return d},i:function(a,b){return[a[0]^b[0],a[1]^b[1],a[2]^b[2],a[3]^b[3]]},byteswapM:function(a){var b,c;for(b=0;b<a.length;++b)c=a[b],a[b]=c>>>24|c>>>8&0xff00|(c&0xff00)<<8|c<<24;return a}};\nsjcl.codec.utf8String={fromBits:function(a){var b=\"\",c=sjcl.bitArray.bitLength(a),d,e;for(d=0;d<c/8;d++)0===(d&3)&&(e=a[d/4]),b+=String.fromCharCode(e>>>8>>>8>>>8),e<<=8;return decodeURIComponent(escape(b))},toBits:function(a){a=unescape(encodeURIComponent(a));var b=[],c,d=0;for(c=0;c<a.length;c++)d=d<<8|a.charCodeAt(c),3===(c&3)&&(b.push(d),d=0);c&3&&b.push(sjcl.bitArray.partial(8*(c&3),d));return b}};\nsjcl.codec.hex={fromBits:function(a){var b=\"\",c;for(c=0;c<a.length;c++)b+=((a[c]|0)+0xf00000000000).toString(16).substr(4);return b.substr(0,sjcl.bitArray.bitLength(a)/4)},toBits:function(a){var b,c=[],d;a=a.replace(/\\s|0x/g,\"\");d=a.length;a=a+\"00000000\";for(b=0;b<a.length;b+=8)c.push(parseInt(a.substr(b,8),16)^0);return sjcl.bitArray.clamp(c,4*d)}};\nsjcl.codec.base32={B:\"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567\",X:\"0123456789ABCDEFGHIJKLMNOPQRSTUV\",BITS:32,BASE:5,REMAINING:27,fromBits:function(a,b,c){var d=sjcl.codec.base32.BASE,e=sjcl.codec.base32.REMAINING,f=\"\",g=0,h=sjcl.codec.base32.B,k=0,l=sjcl.bitArray.bitLength(a);c&&(h=sjcl.codec.base32.X);for(c=0;f.length*d<l;)f+=h.charAt((k^a[c]>>>g)>>>e),g<d?(k=a[c]<<d-g,g+=e,c++):(k<<=d,g-=d);for(;f.length&7&&!b;)f+=\"=\";return f},toBits:function(a,b){a=a.replace(/\\s|=/g,\"\").toUpperCase();var c=sjcl.codec.base32.BITS,\nd=sjcl.codec.base32.BASE,e=sjcl.codec.base32.REMAINING,f=[],g,h=0,k=sjcl.codec.base32.B,l=0,n,m=\"base32\";b&&(k=sjcl.codec.base32.X,m=\"base32hex\");for(g=0;g<a.length;g++){n=k.indexOf(a.charAt(g));if(0>n){if(!b)try{return sjcl.codec.base32hex.toBits(a)}catch(p){}throw new sjcl.exception.invalid(\"this isn't \"+m+\"!\");}h>e?(h-=e,f.push(l^n>>>h),l=n<<c-h):(h+=d,l^=n<<c-h)}h&56&&f.push(sjcl.bitArray.partial(h&56,l,1));return f}};\nsjcl.codec.base32hex={fromBits:function(a,b){return sjcl.codec.base32.fromBits(a,b,1)},toBits:function(a){return sjcl.codec.base32.toBits(a,1)}};\nsjcl.codec.base64={B:\"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\",fromBits:function(a,b,c){var d=\"\",e=0,f=sjcl.codec.base64.B,g=0,h=sjcl.bitArray.bitLength(a);c&&(f=f.substr(0,62)+\"-_\");for(c=0;6*d.length<h;)d+=f.charAt((g^a[c]>>>e)>>>26),6>e?(g=a[c]<<6-e,e+=26,c++):(g<<=6,e-=6);for(;d.length&3&&!b;)d+=\"=\";return d},toBits:function(a,b){a=a.replace(/\\s|=/g,\"\");var c=[],d,e=0,f=sjcl.codec.base64.B,g=0,h;b&&(f=f.substr(0,62)+\"-_\");for(d=0;d<a.length;d++){h=f.indexOf(a.charAt(d));\nif(0>h)throw new sjcl.exception.invalid(\"this isn't base64!\");26<e?(e-=26,c.push(g^h>>>e),g=h<<32-e):(e+=6,g^=h<<32-e)}e&56&&c.push(sjcl.bitArray.partial(e&56,g,1));return c}};sjcl.codec.base64url={fromBits:function(a){return sjcl.codec.base64.fromBits(a,1,1)},toBits:function(a){return sjcl.codec.base64.toBits(a,1)}};sjcl.hash.sha256=function(a){this.b[0]||this.O();a?(this.F=a.F.slice(0),this.A=a.A.slice(0),this.l=a.l):this.reset()};sjcl.hash.sha256.hash=function(a){return(new sjcl.hash.sha256).update(a).finalize()};\nsjcl.hash.sha256.prototype={blockSize:512,reset:function(){this.F=this.Y.slice(0);this.A=[];this.l=0;return this},update:function(a){\"string\"===typeof a&&(a=sjcl.codec.utf8String.toBits(a));var b,c=this.A=sjcl.bitArray.concat(this.A,a);b=this.l;a=this.l=b+sjcl.bitArray.bitLength(a);if(0x1fffffffffffff<a)throw new sjcl.exception.invalid(\"Cannot hash more than 2^53 - 1 bits\");if(\"undefined\"!==typeof Uint32Array){var d=new Uint32Array(c),e=0;for(b=512+b-(512+b&0x1ff);b<=a;b+=512)u(this,d.subarray(16*e,\n16*(e+1))),e+=1;c.splice(0,16*e)}else for(b=512+b-(512+b&0x1ff);b<=a;b+=512)u(this,c.splice(0,16));return this},finalize:function(){var a,b=this.A,c=this.F,b=sjcl.bitArray.concat(b,[sjcl.bitArray.partial(1,1)]);for(a=b.length+2;a&15;a++)b.push(0);b.push(Math.floor(this.l/0x100000000));for(b.push(this.l|0);b.length;)u(this,b.splice(0,16));this.reset();return c},Y:[],b:[],O:function(){function a(a){return 0x100000000*(a-Math.floor(a))|0}for(var b=0,c=2,d,e;64>b;c++){e=!0;for(d=2;d*d<=c;d++)if(0===c%d){e=\n!1;break}e&&(8>b&&(this.Y[b]=a(Math.pow(c,.5))),this.b[b]=a(Math.pow(c,1/3)),b++)}}};\nfunction u(a,b){var c,d,e,f=a.F,g=a.b,h=f[0],k=f[1],l=f[2],n=f[3],m=f[4],p=f[5],r=f[6],q=f[7];for(c=0;64>c;c++)16>c?d=b[c]:(d=b[c+1&15],e=b[c+14&15],d=b[c&15]=(d>>>7^d>>>18^d>>>3^d<<25^d<<14)+(e>>>17^e>>>19^e>>>10^e<<15^e<<13)+b[c&15]+b[c+9&15]|0),d=d+q+(m>>>6^m>>>11^m>>>25^m<<26^m<<21^m<<7)+(r^m&(p^r))+g[c],q=r,r=p,p=m,m=n+d|0,n=l,l=k,k=h,h=d+(k&l^n&(k^l))+(k>>>2^k>>>13^k>>>22^k<<30^k<<19^k<<10)|0;f[0]=f[0]+h|0;f[1]=f[1]+k|0;f[2]=f[2]+l|0;f[3]=f[3]+n|0;f[4]=f[4]+m|0;f[5]=f[5]+p|0;f[6]=f[6]+r|0;f[7]=\nf[7]+q|0}\nsjcl.mode.ccm={name:\"ccm\",G:[],listenProgress:function(a){sjcl.mode.ccm.G.push(a)},unListenProgress:function(a){a=sjcl.mode.ccm.G.indexOf(a);-1<a&&sjcl.mode.ccm.G.splice(a,1)},fa:function(a){var b=sjcl.mode.ccm.G.slice(),c;for(c=0;c<b.length;c+=1)b[c](a)},encrypt:function(a,b,c,d,e){var f,g=b.slice(0),h=sjcl.bitArray,k=h.bitLength(c)/8,l=h.bitLength(g)/8;e=e||64;d=d||[];if(7>k)throw new sjcl.exception.invalid(\"ccm: iv must be at least 7 bytes\");for(f=2;4>f&&l>>>8*f;f++);f<15-k&&(f=15-k);c=h.clamp(c,\n8*(15-f));b=sjcl.mode.ccm.V(a,b,c,d,e,f);g=sjcl.mode.ccm.C(a,g,c,b,e,f);return h.concat(g.data,g.tag)},decrypt:function(a,b,c,d,e){e=e||64;d=d||[];var f=sjcl.bitArray,g=f.bitLength(c)/8,h=f.bitLength(b),k=f.clamp(b,h-e),l=f.bitSlice(b,h-e),h=(h-e)/8;if(7>g)throw new sjcl.exception.invalid(\"ccm: iv must be at least 7 bytes\");for(b=2;4>b&&h>>>8*b;b++);b<15-g&&(b=15-g);c=f.clamp(c,8*(15-b));k=sjcl.mode.ccm.C(a,k,c,l,e,b);a=sjcl.mode.ccm.V(a,k.data,c,d,e,b);if(!f.equal(k.tag,a))throw new sjcl.exception.corrupt(\"ccm: tag doesn't match\");\nreturn k.data},na:function(a,b,c,d,e,f){var g=[],h=sjcl.bitArray,k=h.i;d=[h.partial(8,(b.length?64:0)|d-2<<2|f-1)];d=h.concat(d,c);d[3]|=e;d=a.encrypt(d);if(b.length)for(c=h.bitLength(b)/8,65279>=c?g=[h.partial(16,c)]:0xffffffff>=c&&(g=h.concat([h.partial(16,65534)],[c])),g=h.concat(g,b),b=0;b<g.length;b+=4)d=a.encrypt(k(d,g.slice(b,b+4).concat([0,0,0])));return d},V:function(a,b,c,d,e,f){var g=sjcl.bitArray,h=g.i;e/=8;if(e%2||4>e||16<e)throw new sjcl.exception.invalid(\"ccm: invalid tag length\");\nif(0xffffffff<d.length||0xffffffff<b.length)throw new sjcl.exception.bug(\"ccm: can't deal with 4GiB or more data\");c=sjcl.mode.ccm.na(a,d,c,e,g.bitLength(b)/8,f);for(d=0;d<b.length;d+=4)c=a.encrypt(h(c,b.slice(d,d+4).concat([0,0,0])));return g.clamp(c,8*e)},C:function(a,b,c,d,e,f){var g,h=sjcl.bitArray;g=h.i;var k=b.length,l=h.bitLength(b),n=k/50,m=n;c=h.concat([h.partial(8,f-1)],c).concat([0,0,0]).slice(0,4);d=h.bitSlice(g(d,a.encrypt(c)),0,e);if(!k)return{tag:d,data:[]};for(g=0;g<k;g+=4)g>n&&(sjcl.mode.ccm.fa(g/\nk),n+=m),c[3]++,e=a.encrypt(c),b[g]^=e[0],b[g+1]^=e[1],b[g+2]^=e[2],b[g+3]^=e[3];return{tag:d,data:h.clamp(b,l)}}};\nsjcl.mode.ocb2={name:\"ocb2\",encrypt:function(a,b,c,d,e,f){if(128!==sjcl.bitArray.bitLength(c))throw new sjcl.exception.invalid(\"ocb iv must be 128 bits\");var g,h=sjcl.mode.ocb2.S,k=sjcl.bitArray,l=k.i,n=[0,0,0,0];c=h(a.encrypt(c));var m,p=[];d=d||[];e=e||64;for(g=0;g+4<b.length;g+=4)m=b.slice(g,g+4),n=l(n,m),p=p.concat(l(c,a.encrypt(l(c,m)))),c=h(c);m=b.slice(g);b=k.bitLength(m);g=a.encrypt(l(c,[0,0,0,b]));m=k.clamp(l(m.concat([0,0,0]),g),b);n=l(n,l(m.concat([0,0,0]),g));n=a.encrypt(l(n,l(c,h(c))));\nd.length&&(n=l(n,f?d:sjcl.mode.ocb2.pmac(a,d)));return p.concat(k.concat(m,k.clamp(n,e)))},decrypt:function(a,b,c,d,e,f){if(128!==sjcl.bitArray.bitLength(c))throw new sjcl.exception.invalid(\"ocb iv must be 128 bits\");e=e||64;var g=sjcl.mode.ocb2.S,h=sjcl.bitArray,k=h.i,l=[0,0,0,0],n=g(a.encrypt(c)),m,p,r=sjcl.bitArray.bitLength(b)-e,q=[];d=d||[];for(c=0;c+4<r/32;c+=4)m=k(n,a.decrypt(k(n,b.slice(c,c+4)))),l=k(l,m),q=q.concat(m),n=g(n);p=r-32*c;m=a.encrypt(k(n,[0,0,0,p]));m=k(m,h.clamp(b.slice(c),p).concat([0,\n0,0]));l=k(l,m);l=a.encrypt(k(l,k(n,g(n))));d.length&&(l=k(l,f?d:sjcl.mode.ocb2.pmac(a,d)));if(!h.equal(h.clamp(l,e),h.bitSlice(b,r)))throw new sjcl.exception.corrupt(\"ocb: tag doesn't match\");return q.concat(h.clamp(m,p))},pmac:function(a,b){var c,d=sjcl.mode.ocb2.S,e=sjcl.bitArray,f=e.i,g=[0,0,0,0],h=a.encrypt([0,0,0,0]),h=f(h,d(d(h)));for(c=0;c+4<b.length;c+=4)h=d(h),g=f(g,a.encrypt(f(h,b.slice(c,c+4))));c=b.slice(c);128>e.bitLength(c)&&(h=f(h,d(h)),c=e.concat(c,[-2147483648,0,0,0]));g=f(g,c);\nreturn a.encrypt(f(d(f(h,d(h))),g))},S:function(a){return[a[0]<<1^a[1]>>>31,a[1]<<1^a[2]>>>31,a[2]<<1^a[3]>>>31,a[3]<<1^135*(a[0]>>>31)]}};\nsjcl.mode.gcm={name:\"gcm\",encrypt:function(a,b,c,d,e){var f=b.slice(0);b=sjcl.bitArray;d=d||[];a=sjcl.mode.gcm.C(!0,a,f,d,c,e||128);return b.concat(a.data,a.tag)},decrypt:function(a,b,c,d,e){var f=b.slice(0),g=sjcl.bitArray,h=g.bitLength(f);e=e||128;d=d||[];e<=h?(b=g.bitSlice(f,h-e),f=g.bitSlice(f,0,h-e)):(b=f,f=[]);a=sjcl.mode.gcm.C(!1,a,f,d,c,e);if(!g.equal(a.tag,b))throw new sjcl.exception.corrupt(\"gcm: tag doesn't match\");return a.data},ka:function(a,b){var c,d,e,f,g,h=sjcl.bitArray.i;e=[0,0,\n0,0];f=b.slice(0);for(c=0;128>c;c++){(d=0!==(a[Math.floor(c/32)]&1<<31-c%32))&&(e=h(e,f));g=0!==(f[3]&1);for(d=3;0<d;d--)f[d]=f[d]>>>1|(f[d-1]&1)<<31;f[0]>>>=1;g&&(f[0]^=-0x1f000000)}return e},j:function(a,b,c){var d,e=c.length;b=b.slice(0);for(d=0;d<e;d+=4)b[0]^=0xffffffff&c[d],b[1]^=0xffffffff&c[d+1],b[2]^=0xffffffff&c[d+2],b[3]^=0xffffffff&c[d+3],b=sjcl.mode.gcm.ka(b,a);return b},C:function(a,b,c,d,e,f){var g,h,k,l,n,m,p,r,q=sjcl.bitArray;m=c.length;p=q.bitLength(c);r=q.bitLength(d);h=q.bitLength(e);\ng=b.encrypt([0,0,0,0]);96===h?(e=e.slice(0),e=q.concat(e,[1])):(e=sjcl.mode.gcm.j(g,[0,0,0,0],e),e=sjcl.mode.gcm.j(g,e,[0,0,Math.floor(h/0x100000000),h&0xffffffff]));h=sjcl.mode.gcm.j(g,[0,0,0,0],d);n=e.slice(0);d=h.slice(0);a||(d=sjcl.mode.gcm.j(g,h,c));for(l=0;l<m;l+=4)n[3]++,k=b.encrypt(n),c[l]^=k[0],c[l+1]^=k[1],c[l+2]^=k[2],c[l+3]^=k[3];c=q.clamp(c,p);a&&(d=sjcl.mode.gcm.j(g,h,c));a=[Math.floor(r/0x100000000),r&0xffffffff,Math.floor(p/0x100000000),p&0xffffffff];d=sjcl.mode.gcm.j(g,d,a);k=b.encrypt(e);\nd[0]^=k[0];d[1]^=k[1];d[2]^=k[2];d[3]^=k[3];return{tag:q.bitSlice(d,0,f),data:c}}};sjcl.misc.hmac=function(a,b){this.W=b=b||sjcl.hash.sha256;var c=[[],[]],d,e=b.prototype.blockSize/32;this.w=[new b,new b];a.length>e&&(a=b.hash(a));for(d=0;d<e;d++)c[0][d]=a[d]^909522486,c[1][d]=a[d]^1549556828;this.w[0].update(c[0]);this.w[1].update(c[1]);this.R=new b(this.w[0])};\nsjcl.misc.hmac.prototype.encrypt=sjcl.misc.hmac.prototype.mac=function(a){if(this.aa)throw new sjcl.exception.invalid(\"encrypt on already updated hmac called!\");this.update(a);return this.digest(a)};sjcl.misc.hmac.prototype.reset=function(){this.R=new this.W(this.w[0]);this.aa=!1};sjcl.misc.hmac.prototype.update=function(a){this.aa=!0;this.R.update(a)};sjcl.misc.hmac.prototype.digest=function(){var a=this.R.finalize(),a=(new this.W(this.w[1])).update(a).finalize();this.reset();return a};\nsjcl.misc.pbkdf2=function(a,b,c,d,e){c=c||1E4;if(0>d||0>c)throw new sjcl.exception.invalid(\"invalid params to pbkdf2\");\"string\"===typeof a&&(a=sjcl.codec.utf8String.toBits(a));\"string\"===typeof b&&(b=sjcl.codec.utf8String.toBits(b));e=e||sjcl.misc.hmac;a=new e(a);var f,g,h,k,l=[],n=sjcl.bitArray;for(k=1;32*l.length<(d||1);k++){e=f=a.encrypt(n.concat(b,[k]));for(g=1;g<c;g++)for(f=a.encrypt(f),h=0;h<f.length;h++)e[h]^=f[h];l=l.concat(e)}d&&(l=n.clamp(l,d));return l};\nsjcl.prng=function(a){this.c=[new sjcl.hash.sha256];this.m=[0];this.P=0;this.H={};this.N=0;this.U={};this.Z=this.f=this.o=this.ha=0;this.b=[0,0,0,0,0,0,0,0];this.h=[0,0,0,0];this.L=void 0;this.M=a;this.D=!1;this.K={progress:{},seeded:{}};this.u=this.ga=0;this.I=1;this.J=2;this.ca=0x10000;this.T=[0,48,64,96,128,192,0x100,384,512,768,1024];this.da=3E4;this.ba=80};\nsjcl.prng.prototype={randomWords:function(a,b){var c=[],d;d=this.isReady(b);var e;if(d===this.u)throw new sjcl.exception.notReady(\"generator isn't seeded\");if(d&this.J){d=!(d&this.I);e=[];var f=0,g;this.Z=e[0]=(new Date).valueOf()+this.da;for(g=0;16>g;g++)e.push(0x100000000*Math.random()|0);for(g=0;g<this.c.length&&(e=e.concat(this.c[g].finalize()),f+=this.m[g],this.m[g]=0,d||!(this.P&1<<g));g++);this.P>=1<<this.c.length&&(this.c.push(new sjcl.hash.sha256),this.m.push(0));this.f-=f;f>this.o&&(this.o=\nf);this.P++;this.b=sjcl.hash.sha256.hash(this.b.concat(e));this.L=new sjcl.cipher.aes(this.b);for(d=0;4>d&&(this.h[d]=this.h[d]+1|0,!this.h[d]);d++);}for(d=0;d<a;d+=4)0===(d+1)%this.ca&&y(this),e=z(this),c.push(e[0],e[1],e[2],e[3]);y(this);return c.slice(0,a)},setDefaultParanoia:function(a,b){if(0===a&&\"Setting paranoia=0 will ruin your security; use it only for testing\"!==b)throw new sjcl.exception.invalid(\"Setting paranoia=0 will ruin your security; use it only for testing\");this.M=a},addEntropy:function(a,\nb,c){c=c||\"user\";var d,e,f=(new Date).valueOf(),g=this.H[c],h=this.isReady(),k=0;d=this.U[c];void 0===d&&(d=this.U[c]=this.ha++);void 0===g&&(g=this.H[c]=0);this.H[c]=(this.H[c]+1)%this.c.length;switch(typeof a){case \"number\":void 0===b&&(b=1);this.c[g].update([d,this.N++,1,b,f,1,a|0]);break;case \"object\":c=Object.prototype.toString.call(a);if(\"[object Uint32Array]\"===c){e=[];for(c=0;c<a.length;c++)e.push(a[c]);a=e}else for(\"[object Array]\"!==c&&(k=1),c=0;c<a.length&&!k;c++)\"number\"!==typeof a[c]&&\n(k=1);if(!k){if(void 0===b)for(c=b=0;c<a.length;c++)for(e=a[c];0<e;)b++,e=e>>>1;this.c[g].update([d,this.N++,2,b,f,a.length].concat(a))}break;case \"string\":void 0===b&&(b=a.length);this.c[g].update([d,this.N++,3,b,f,a.length]);this.c[g].update(a);break;default:k=1}if(k)throw new sjcl.exception.bug(\"random: addEntropy only supports number, array of numbers or string\");this.m[g]+=b;this.f+=b;h===this.u&&(this.isReady()!==this.u&&A(\"seeded\",Math.max(this.o,this.f)),A(\"progress\",this.getProgress()))},\nisReady:function(a){a=this.T[void 0!==a?a:this.M];return this.o&&this.o>=a?this.m[0]>this.ba&&(new Date).valueOf()>this.Z?this.J|this.I:this.I:this.f>=a?this.J|this.u:this.u},getProgress:function(a){a=this.T[a?a:this.M];return this.o>=a?1:this.f>a?1:this.f/a},startCollectors:function(){if(!this.D){this.a={loadTimeCollector:B(this,this.ma),mouseCollector:B(this,this.oa),keyboardCollector:B(this,this.la),accelerometerCollector:B(this,this.ea),touchCollector:B(this,this.qa)};if(window.addEventListener)window.addEventListener(\"load\",\nthis.a.loadTimeCollector,!1),window.addEventListener(\"mousemove\",this.a.mouseCollector,!1),window.addEventListener(\"keypress\",this.a.keyboardCollector,!1),window.addEventListener(\"devicemotion\",this.a.accelerometerCollector,!1),window.addEventListener(\"touchmove\",this.a.touchCollector,!1);else if(document.attachEvent)document.attachEvent(\"onload\",this.a.loadTimeCollector),document.attachEvent(\"onmousemove\",this.a.mouseCollector),document.attachEvent(\"keypress\",this.a.keyboardCollector);else throw new sjcl.exception.bug(\"can't attach event\");\nthis.D=!0}},stopCollectors:function(){this.D&&(window.removeEventListener?(window.removeEventListener(\"load\",this.a.loadTimeCollector,!1),window.removeEventListener(\"mousemove\",this.a.mouseCollector,!1),window.removeEventListener(\"keypress\",this.a.keyboardCollector,!1),window.removeEventListener(\"devicemotion\",this.a.accelerometerCollector,!1),window.removeEventListener(\"touchmove\",this.a.touchCollector,!1)):document.detachEvent&&(document.detachEvent(\"onload\",this.a.loadTimeCollector),document.detachEvent(\"onmousemove\",\nthis.a.mouseCollector),document.detachEvent(\"keypress\",this.a.keyboardCollector)),this.D=!1)},addEventListener:function(a,b){this.K[a][this.ga++]=b},removeEventListener:function(a,b){var c,d,e=this.K[a],f=[];for(d in e)e.hasOwnProperty(d)&&e[d]===b&&f.push(d);for(c=0;c<f.length;c++)d=f[c],delete e[d]},la:function(){C(this,1)},oa:function(a){var b,c;try{b=a.x||a.clientX||a.offsetX||0,c=a.y||a.clientY||a.offsetY||0}catch(d){c=b=0}0!=b&&0!=c&&this.addEntropy([b,c],2,\"mouse\");C(this,0)},qa:function(a){a=\na.touches[0]||a.changedTouches[0];this.addEntropy([a.pageX||a.clientX,a.pageY||a.clientY],1,\"touch\");C(this,0)},ma:function(){C(this,2)},ea:function(a){a=a.accelerationIncludingGravity.x||a.accelerationIncludingGravity.y||a.accelerationIncludingGravity.z;if(window.orientation){var b=window.orientation;\"number\"===typeof b&&this.addEntropy(b,1,\"accelerometer\")}a&&this.addEntropy(a,2,\"accelerometer\");C(this,0)}};\nfunction A(a,b){var c,d=sjcl.random.K[a],e=[];for(c in d)d.hasOwnProperty(c)&&e.push(d[c]);for(c=0;c<e.length;c++)e[c](b)}function C(a,b){\"undefined\"!==typeof window&&window.performance&&\"function\"===typeof window.performance.now?a.addEntropy(window.performance.now(),b,\"loadtime\"):a.addEntropy((new Date).valueOf(),b,\"loadtime\")}function y(a){a.b=z(a).concat(z(a));a.L=new sjcl.cipher.aes(a.b)}function z(a){for(var b=0;4>b&&(a.h[b]=a.h[b]+1|0,!a.h[b]);b++);return a.L.encrypt(a.h)}\nfunction B(a,b){return function(){b.apply(a,arguments)}}sjcl.random=new sjcl.prng(6);\na:try{var D,E,F,G;if(G=\"undefined\"!==typeof module&&module.exports){var H;try{H=require(\"crypto\")}catch(a){H=null}G=E=H}if(G&&E.randomBytes)D=E.randomBytes(128),D=new Uint32Array((new Uint8Array(D)).buffer),sjcl.random.addEntropy(D,1024,\"crypto['randomBytes']\");else if(\"undefined\"!==typeof window&&\"undefined\"!==typeof Uint32Array){F=new Uint32Array(32);if(window.crypto&&window.crypto.getRandomValues)window.crypto.getRandomValues(F);else if(window.msCrypto&&window.msCrypto.getRandomValues)window.msCrypto.getRandomValues(F);\nelse break a;sjcl.random.addEntropy(F,1024,\"crypto['getRandomValues']\")}}catch(a){\"undefined\"!==typeof window&&window.console&&(console.log(\"There was an error collecting entropy from the browser:\"),console.log(a))}\nsjcl.json={defaults:{v:1,iter:1E4,ks:128,ts:64,mode:\"ccm\",adata:\"\",cipher:\"aes\"},ja:function(a,b,c,d){c=c||{};d=d||{};var e=sjcl.json,f=e.g({iv:sjcl.random.randomWords(4,0)},e.defaults),g;e.g(f,c);c=f.adata;\"string\"===typeof f.salt&&(f.salt=sjcl.codec.base64.toBits(f.salt));\"string\"===typeof f.iv&&(f.iv=sjcl.codec.base64.toBits(f.iv));if(!sjcl.mode[f.mode]||!sjcl.cipher[f.cipher]||\"string\"===typeof a&&100>=f.iter||64!==f.ts&&96!==f.ts&&128!==f.ts||128!==f.ks&&192!==f.ks&&0x100!==f.ks||2>f.iv.length||\n4<f.iv.length)throw new sjcl.exception.invalid(\"json encrypt: invalid parameters\");\"string\"===typeof a?(g=sjcl.misc.cachedPbkdf2(a,f),a=g.key.slice(0,f.ks/32),f.salt=g.salt):sjcl.ecc&&a instanceof sjcl.ecc.elGamal.publicKey&&(g=a.kem(),f.kemtag=g.tag,a=g.key.slice(0,f.ks/32));\"string\"===typeof b&&(b=sjcl.codec.utf8String.toBits(b));\"string\"===typeof c&&(f.adata=c=sjcl.codec.utf8String.toBits(c));g=new sjcl.cipher[f.cipher](a);e.g(d,f);d.key=a;f.ct=\"ccm\"===f.mode&&sjcl.arrayBuffer&&sjcl.arrayBuffer.ccm&&\nb instanceof ArrayBuffer?sjcl.arrayBuffer.ccm.encrypt(g,b,f.iv,c,f.ts):sjcl.mode[f.mode].encrypt(g,b,f.iv,c,f.ts);return f},encrypt:function(a,b,c,d){var e=sjcl.json,f=e.ja.apply(e,arguments);return e.encode(f)},ia:function(a,b,c,d){c=c||{};d=d||{};var e=sjcl.json;b=e.g(e.g(e.g({},e.defaults),b),c,!0);var f,g;f=b.adata;\"string\"===typeof b.salt&&(b.salt=sjcl.codec.base64.toBits(b.salt));\"string\"===typeof b.iv&&(b.iv=sjcl.codec.base64.toBits(b.iv));if(!sjcl.mode[b.mode]||!sjcl.cipher[b.cipher]||\"string\"===\ntypeof a&&100>=b.iter||64!==b.ts&&96!==b.ts&&128!==b.ts||128!==b.ks&&192!==b.ks&&0x100!==b.ks||!b.iv||2>b.iv.length||4<b.iv.length)throw new sjcl.exception.invalid(\"json decrypt: invalid parameters\");\"string\"===typeof a?(g=sjcl.misc.cachedPbkdf2(a,b),a=g.key.slice(0,b.ks/32),b.salt=g.salt):sjcl.ecc&&a instanceof sjcl.ecc.elGamal.secretKey&&(a=a.unkem(sjcl.codec.base64.toBits(b.kemtag)).slice(0,b.ks/32));\"string\"===typeof f&&(f=sjcl.codec.utf8String.toBits(f));g=new sjcl.cipher[b.cipher](a);f=\"ccm\"===\nb.mode&&sjcl.arrayBuffer&&sjcl.arrayBuffer.ccm&&b.ct instanceof ArrayBuffer?sjcl.arrayBuffer.ccm.decrypt(g,b.ct,b.iv,b.tag,f,b.ts):sjcl.mode[b.mode].decrypt(g,b.ct,b.iv,f,b.ts);e.g(d,b);d.key=a;return 1===c.raw?f:sjcl.codec.utf8String.fromBits(f)},decrypt:function(a,b,c,d){var e=sjcl.json;return e.ia(a,e.decode(b),c,d)},encode:function(a){var b,c=\"{\",d=\"\";for(b in a)if(a.hasOwnProperty(b)){if(!b.match(/^[a-z0-9]+$/i))throw new sjcl.exception.invalid(\"json encode: invalid property name\");c+=d+'\"'+\nb+'\":';d=\",\";switch(typeof a[b]){case \"number\":case \"boolean\":c+=a[b];break;case \"string\":c+='\"'+escape(a[b])+'\"';break;case \"object\":c+='\"'+sjcl.codec.base64.fromBits(a[b],0)+'\"';break;default:throw new sjcl.exception.bug(\"json encode: unsupported type\");}}return c+\"}\"},decode:function(a){a=a.replace(/\\s/g,\"\");if(!a.match(/^\\{.*\\}$/))throw new sjcl.exception.invalid(\"json decode: this isn't json!\");a=a.replace(/^\\{|\\}$/g,\"\").split(/,/);var b={},c,d;for(c=0;c<a.length;c++){if(!(d=a[c].match(/^\\s*(?:([\"']?)([a-z][a-z0-9]*)\\1)\\s*:\\s*(?:(-?\\d+)|\"([a-z0-9+\\/%*_.@=\\-]*)\"|(true|false))$/i)))throw new sjcl.exception.invalid(\"json decode: this isn't json!\");\nnull!=d[3]?b[d[2]]=parseInt(d[3],10):null!=d[4]?b[d[2]]=d[2].match(/^(ct|adata|salt|iv)$/)?sjcl.codec.base64.toBits(d[4]):unescape(d[4]):null!=d[5]&&(b[d[2]]=\"true\"===d[5])}return b},g:function(a,b,c){void 0===a&&(a={});if(void 0===b)return a;for(var d in b)if(b.hasOwnProperty(d)){if(c&&void 0!==a[d]&&a[d]!==b[d])throw new sjcl.exception.invalid(\"required parameter overridden\");a[d]=b[d]}return a},sa:function(a,b){var c={},d;for(d in a)a.hasOwnProperty(d)&&a[d]!==b[d]&&(c[d]=a[d]);return c},ra:function(a,\nb){var c={},d;for(d=0;d<b.length;d++)void 0!==a[b[d]]&&(c[b[d]]=a[b[d]]);return c}};sjcl.encrypt=sjcl.json.encrypt;sjcl.decrypt=sjcl.json.decrypt;sjcl.misc.pa={};sjcl.misc.cachedPbkdf2=function(a,b){var c=sjcl.misc.pa,d;b=b||{};d=b.iter||1E3;c=c[a]=c[a]||{};d=c[d]=c[d]||{firstSalt:b.salt&&b.salt.length?b.salt.slice(0):sjcl.random.randomWords(2,0)};c=void 0===b.salt?d.firstSalt:b.salt;d[c]=d[c]||sjcl.misc.pbkdf2(a,c,b.iter);return{key:d[c].slice(0),salt:c.slice(0)}};\n\"undefined\"!==typeof module&&module.exports&&(module.exports=sjcl);\"function\"===typeof define&&define([],function(){return sjcl});\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nmodule.exports = Stream;\n\nvar EE = require('events').EventEmitter;\nvar inherits = require('inherits');\n\ninherits(Stream, EE);\nStream.Readable = require('readable-stream/readable.js');\nStream.Writable = require('readable-stream/writable.js');\nStream.Duplex = require('readable-stream/duplex.js');\nStream.Transform = require('readable-stream/transform.js');\nStream.PassThrough = require('readable-stream/passthrough.js');\n\n// Backwards-compat with node 0.4.x\nStream.Stream = Stream;\n\n\n\n// old-style streams.  Note that the pipe method (the only relevant\n// part of this class) is overridden in the Readable class.\n\nfunction Stream() {\n  EE.call(this);\n}\n\nStream.prototype.pipe = function(dest, options) {\n  var source = this;\n\n  function ondata(chunk) {\n    if (dest.writable) {\n      if (false === dest.write(chunk) && source.pause) {\n        source.pause();\n      }\n    }\n  }\n\n  source.on('data', ondata);\n\n  function ondrain() {\n    if (source.readable && source.resume) {\n      source.resume();\n    }\n  }\n\n  dest.on('drain', ondrain);\n\n  // If the 'end' option is not supplied, dest.end() will be called when\n  // source gets the 'end' or 'close' events.  Only dest.end() once.\n  if (!dest._isStdio && (!options || options.end !== false)) {\n    source.on('end', onend);\n    source.on('close', onclose);\n  }\n\n  var didOnEnd = false;\n  function onend() {\n    if (didOnEnd) return;\n    didOnEnd = true;\n\n    dest.end();\n  }\n\n\n  function onclose() {\n    if (didOnEnd) return;\n    didOnEnd = true;\n\n    if (typeof dest.destroy === 'function') dest.destroy();\n  }\n\n  // don't leave dangling pipes when there are errors.\n  function onerror(er) {\n    cleanup();\n    if (EE.listenerCount(this, 'error') === 0) {\n      throw er; // Unhandled stream error in pipe.\n    }\n  }\n\n  source.on('error', onerror);\n  dest.on('error', onerror);\n\n  // remove all the event listeners that were added.\n  function cleanup() {\n    source.removeListener('data', ondata);\n    dest.removeListener('drain', ondrain);\n\n    source.removeListener('end', onend);\n    source.removeListener('close', onclose);\n\n    source.removeListener('error', onerror);\n    dest.removeListener('error', onerror);\n\n    source.removeListener('end', cleanup);\n    source.removeListener('close', cleanup);\n\n    dest.removeListener('close', cleanup);\n  }\n\n  source.on('end', cleanup);\n  source.on('close', cleanup);\n\n  dest.on('close', cleanup);\n\n  dest.emit('pipe', source);\n\n  // Allow for unix-like usage: A.pipe(B).pipe(C)\n  return dest;\n};\n","var nextTick = require('process/browser.js').nextTick;\nvar apply = Function.prototype.apply;\nvar slice = Array.prototype.slice;\nvar immediateIds = {};\nvar nextImmediateId = 0;\n\n// DOM APIs, for completeness\n\nexports.setTimeout = function() {\n  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);\n};\nexports.setInterval = function() {\n  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);\n};\nexports.clearTimeout =\nexports.clearInterval = function(timeout) { timeout.close(); };\n\nfunction Timeout(id, clearFn) {\n  this._id = id;\n  this._clearFn = clearFn;\n}\nTimeout.prototype.unref = Timeout.prototype.ref = function() {};\nTimeout.prototype.close = function() {\n  this._clearFn.call(window, this._id);\n};\n\n// Does not start the time, just sets up the members needed.\nexports.enroll = function(item, msecs) {\n  clearTimeout(item._idleTimeoutId);\n  item._idleTimeout = msecs;\n};\n\nexports.unenroll = function(item) {\n  clearTimeout(item._idleTimeoutId);\n  item._idleTimeout = -1;\n};\n\nexports._unrefActive = exports.active = function(item) {\n  clearTimeout(item._idleTimeoutId);\n\n  var msecs = item._idleTimeout;\n  if (msecs >= 0) {\n    item._idleTimeoutId = setTimeout(function onTimeout() {\n      if (item._onTimeout)\n        item._onTimeout();\n    }, msecs);\n  }\n};\n\n// That's not how node.js implements it but the exposed api is the same.\nexports.setImmediate = typeof setImmediate === \"function\" ? setImmediate : function(fn) {\n  var id = nextImmediateId++;\n  var args = arguments.length < 2 ? false : slice.call(arguments, 1);\n\n  immediateIds[id] = true;\n\n  nextTick(function onNextTick() {\n    if (immediateIds[id]) {\n      // fn.call() is faster so we optimize for the common use-case\n      // @see http://jsperf.com/call-apply-segu\n      if (args) {\n        fn.apply(null, args);\n      } else {\n        fn.call(null);\n      }\n      // Prevent ids from leaking\n      exports.clearImmediate(id);\n    }\n  });\n\n  return id;\n};\n\nexports.clearImmediate = typeof clearImmediate === \"function\" ? clearImmediate : function(id) {\n  delete immediateIds[id];\n};","\n/**\n * Module exports.\n */\n\nmodule.exports = deprecate;\n\n/**\n * Mark that a method should not be used.\n * Returns a modified function which warns once by default.\n *\n * If `localStorage.noDeprecation = true` is set, then it is a no-op.\n *\n * If `localStorage.throwDeprecation = true` is set, then deprecated functions\n * will throw an Error when invoked.\n *\n * If `localStorage.traceDeprecation = true` is set, then deprecated functions\n * will invoke `console.trace()` instead of `console.error()`.\n *\n * @param {Function} fn - the function to deprecate\n * @param {String} msg - the string to print to the console when `fn` is invoked\n * @returns {Function} a new \"deprecated\" version of `fn`\n * @api public\n */\n\nfunction deprecate (fn, msg) {\n  if (config('noDeprecation')) {\n    return fn;\n  }\n\n  var warned = false;\n  function deprecated() {\n    if (!warned) {\n      if (config('throwDeprecation')) {\n        throw new Error(msg);\n      } else if (config('traceDeprecation')) {\n        console.trace(msg);\n      } else {\n        console.warn(msg);\n      }\n      warned = true;\n    }\n    return fn.apply(this, arguments);\n  }\n\n  return deprecated;\n}\n\n/**\n * Checks `localStorage` for boolean values for the given `name`.\n *\n * @param {String} name\n * @returns {Boolean}\n * @api private\n */\n\nfunction config (name) {\n  // accessing global.localStorage can trigger a DOMException in sandboxed iframes\n  try {\n    if (!global.localStorage) return false;\n  } catch (_) {\n    return false;\n  }\n  var val = global.localStorage[name];\n  if (null == val) return false;\n  return String(val).toLowerCase() === 'true';\n}\n","var indexOf = function (xs, item) {\n    if (xs.indexOf) return xs.indexOf(item);\n    else for (var i = 0; i < xs.length; i++) {\n        if (xs[i] === item) return i;\n    }\n    return -1;\n};\nvar Object_keys = function (obj) {\n    if (Object.keys) return Object.keys(obj)\n    else {\n        var res = [];\n        for (var key in obj) res.push(key)\n        return res;\n    }\n};\n\nvar forEach = function (xs, fn) {\n    if (xs.forEach) return xs.forEach(fn)\n    else for (var i = 0; i < xs.length; i++) {\n        fn(xs[i], i, xs);\n    }\n};\n\nvar defineProp = (function() {\n    try {\n        Object.defineProperty({}, '_', {});\n        return function(obj, name, value) {\n            Object.defineProperty(obj, name, {\n                writable: true,\n                enumerable: false,\n                configurable: true,\n                value: value\n            })\n        };\n    } catch(e) {\n        return function(obj, name, value) {\n            obj[name] = value;\n        };\n    }\n}());\n\nvar globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function',\n'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError',\n'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError',\n'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape',\n'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape'];\n\nfunction Context() {}\nContext.prototype = {};\n\nvar Script = exports.Script = function NodeScript (code) {\n    if (!(this instanceof Script)) return new Script(code);\n    this.code = code;\n};\n\nScript.prototype.runInContext = function (context) {\n    if (!(context instanceof Context)) {\n        throw new TypeError(\"needs a 'context' argument.\");\n    }\n    \n    var iframe = document.createElement('iframe');\n    if (!iframe.style) iframe.style = {};\n    iframe.style.display = 'none';\n    \n    document.body.appendChild(iframe);\n    \n    var win = iframe.contentWindow;\n    var wEval = win.eval, wExecScript = win.execScript;\n\n    if (!wEval && wExecScript) {\n        // win.eval() magically appears when this is called in IE:\n        wExecScript.call(win, 'null');\n        wEval = win.eval;\n    }\n    \n    forEach(Object_keys(context), function (key) {\n        win[key] = context[key];\n    });\n    forEach(globals, function (key) {\n        if (context[key]) {\n            win[key] = context[key];\n        }\n    });\n    \n    var winKeys = Object_keys(win);\n\n    var res = wEval.call(win, this.code);\n    \n    forEach(Object_keys(win), function (key) {\n        // Avoid copying circular objects like `top` and `window` by only\n        // updating existing context properties or new properties in the `win`\n        // that was only introduced after the eval.\n        if (key in context || indexOf(winKeys, key) === -1) {\n            context[key] = win[key];\n        }\n    });\n\n    forEach(globals, function (key) {\n        if (!(key in context)) {\n            defineProp(context, key, win[key]);\n        }\n    });\n    \n    document.body.removeChild(iframe);\n    \n    return res;\n};\n\nScript.prototype.runInThisContext = function () {\n    return eval(this.code); // maybe...\n};\n\nScript.prototype.runInNewContext = function (context) {\n    var ctx = Script.createContext(context);\n    var res = this.runInContext(ctx);\n\n    if (context) {\n        forEach(Object_keys(ctx), function (key) {\n            context[key] = ctx[key];\n        });\n    }\n\n    return res;\n};\n\nforEach(Object_keys(Script.prototype), function (name) {\n    exports[name] = Script[name] = function (code) {\n        var s = Script(code);\n        return s[name].apply(s, [].slice.call(arguments, 1));\n    };\n});\n\nexports.isContext = function (context) {\n    return context instanceof Context;\n};\n\nexports.createScript = function (code) {\n    return exports.Script(code);\n};\n\nexports.createContext = Script.createContext = function (context) {\n    var copy = new Context();\n    if(typeof context === 'object') {\n        forEach(Object_keys(context), function (key) {\n            copy[key] = context[key];\n        });\n    }\n    return copy;\n};\n","import { changePassphrase } from \"./pages/user/ChangePassphrase\";\nimport { EncryptionServiceFactory } from \"../common/service/EncryptionServiceFactory\";\nimport log from \"loglevel\";\n\nlog.setLevel(\"TRACE\");\nconst es = EncryptionServiceFactory.getEncryptionService();\n$(\"#changePassphraseForm\").on(\"submit\", (event) => {\n  event.preventDefault();\n  changePassphrase(es);\n});\n","import { EncryptionService } from \"../../../common/service/EncryptionService\";\nimport { Routes } from \"../../../common/routes/Routes\";\nimport { ChatMessageDTO } from \"../../../common/dto/ChatMessageDTO\";\nimport {\n  ReencryptionDTO,\n  DecryptedDTO,\n} from \"../../../common/dto/ReencryptionDTO\";\nimport { Credentials } from \"../../../common/global/Credentials\";\nimport { MessageCipher } from \"../../../common/entity/MessageCipher\";\nimport log from \"loglevel\";\n\nexport async function changePassphrase(es: EncryptionService) {\n  //   $(\"#changePassphraseForm\").val();\n\n  const user =\n    (document.getElementById(\"changePassphraseDropDown\") as HTMLOptionElement)\n      .value || \"error\";\n\n  const passphraseOld: string = $(\"#passphraseOld\").val() as string;\n  const passphraseNew: string = $(\"#passphraseNew\").val() as string;\n\n  log.debug(Credentials.authToken);\n  const messages = await getAllMessages(user, Credentials.authToken);\n\n  const decrypted = Promise.all(\n    messages.map(\n      async (m): Promise<DecryptedDTO> => {\n        const msg = await es.decryptAsPromise(passphraseOld, m.messageCipher);\n        const m2 = { ...m, messageId: m.messageCipher.id, message: msg };\n        return m2;\n      }\n    )\n  );\n\n  const reencrypted = (await decrypted).map((m) => {\n    const mdto = es.encrypt(passphraseNew, m.message);\n    const mc = <MessageCipher>{ id: m.messageId, ...mdto };\n    const rdto = <ReencryptionDTO>{ ...m, messageCipher: mc };\n    return rdto;\n  });\n\n  log.debug(reencrypted);\n\n  const decryptedAgain = Promise.all(\n    reencrypted.map(async (m) => {\n      return es.decryptAsPromise(passphraseNew, m.messageCipher);\n    })\n  );\n\n  const deb = await decryptedAgain;\n  log.debug(deb);\n\n  sendReencryptedMessages(reencrypted, Credentials.authToken);\n}\n\nasync function getAllMessages(user: string, authToken: string) {\n  let headers = new Headers();\n  // headers.append('Accept','application/json')\n  // headers.append('Content-Type', 'application/json');\n  headers.append(\"X-AUTH-TOKEN\", authToken);\n  let response = await fetch(`${Routes.Admin.getAllMessagesURL}${user}`, {\n    method: \"GET\",\n    headers: headers,\n  });\n  return response.json() as Promise<ReencryptionDTO[]>;\n}\n\nasync function getAllRegularUsers(authToken: string) {\n  let headers = new Headers();\n  // headers.append('Accept','application/json')\n  // headers.append('Content-Type', 'application/json');\n  headers.append(\"X-AUTH-TOKEN\", authToken);\n  let response = await fetch(`${Routes.Admin.getAllRegularUsersURL}`, {\n    method: \"GET\",\n    headers: headers,\n  });\n  let data = (await response.json()) as string[];\n  return data;\n}\n\nfunction sendReencryptedMessages(\n  rrencryptionDTOs: ReencryptionDTO[],\n  authToken: string\n) {\n  let headers = new Headers();\n  //\tconsole.log(\"Token = \" + btoa(\"hmm\" + \":\" + \"hmm\"))\n\n  // headers.append('Accept','application/json')\n  headers.append(\"Content-Type\", \"application/json\");\n  headers.append(\"X-AUTH-TOKEN\", authToken);\n  fetch(Routes.Admin.reencryptURL, {\n    method: \"POST\",\n    headers: headers,\n    body: JSON.stringify(rrencryptionDTOs),\n  }).then((response) => console.log(response));\n}\n","export namespace Credentials {\n    export const principleName: string = localStorage.getItem(\"username\") || \"\";\n    export const authToken: string = localStorage.getItem(\"authToken\") || \"\";\n}","export namespace Admin {\n  export const getAllMessagesURL = `/api/admin/get/messages/`; //hostAddress set in thymeleaf backend\n  export const reencryptURL = `/api/admin/post/re-encrypt`;\n  export const getAllRegularUsersURL = `/api/admin/get/users`;\n}\n","import { Admin as _admin } from \"./Admin\";\n\nexport namespace Routes {\n  export const Admin = _admin;\n}\n","import { EncryptionService } from \"./EncryptionService\";\nimport { SJCLEncryptionService } from \"./SJCLEncryptionService\";\n// import PromiseWorker = require('promise-worker');\nimport PromiseWorker from \"promise-worker\";\n\nexport class EncryptionServiceFactory {\n    private static readonly _worker = new Worker('/js/worker.js');\n    private static readonly _promiseWorker = new PromiseWorker(EncryptionServiceFactory._worker);\n    public static getEncryptionService(): EncryptionService {\n        return new SJCLEncryptionService(this._promiseWorker)\n    }\n}","import { EncryptionService } from \"./EncryptionService\";\nimport * as sjcl from \"sjcl\";\nimport { MessageCipherDTO } from \"../dto/MessageCipherDTO\";\nimport PromiseWorker from \"promise-worker\";\nexport class SJCLEncryptionService implements EncryptionService {\n  private _params: sjcl.SjclCipherParams = {\n    mode: \"gcm\",\n    ts: 128,\n    adata: \"\",\n    iter: 10000,\n  };\n  private readonly _promiseWorker: PromiseWorker;\n\n  constructor(promiseWorker: PromiseWorker) {\n    this._promiseWorker = promiseWorker;\n  }\n\n  public encrypt(passphrase: string, plainText: string): MessageCipherDTO {\n    const fn = () => {\n      // @ts-ignore\n      const cipher = sjcl.encrypt(passphrase, plainText, this._params);\n      return (cipher as unknown) as string;\n    };\n    return JSON.parse(fn());\n  }\n\n  public decrypt(passphrase: string, cipher: MessageCipherDTO): string {\n    return sjcl.decrypt(passphrase, JSON.stringify(cipher));\n  }\n\n  public async decryptAsPromise(\n    passphrase: string,\n    cipher: MessageCipherDTO\n  ): Promise<string> {\n    const decrypted = await this._promiseWorker.postMessage<\n      string,\n      { passphrase: string; cipher: MessageCipherDTO }\n    >({ passphrase: passphrase, cipher: cipher });\n    return decrypted;\n  }\n}\n"]}
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