node_modules

16 files changed, 1323 insertions, 0 deletions

diff --git a/node_modules/des.js/.jscsrc b/node_modules/des.js/.jscsrc
new file mode 100644
index 000000000..dbaae2057
--- /dev/null
+++ b/node_modules/des.js/.jscsrc
@@ -0,0 +1,46 @@
+{
+  "disallowKeywordsOnNewLine": [ "else" ],
+  "disallowMixedSpacesAndTabs": true,
+  "disallowMultipleLineStrings": true,
+  "disallowMultipleVarDecl": true,
+  "disallowNewlineBeforeBlockStatements": true,
+  "disallowQuotedKeysInObjects": true,
+  "disallowSpaceAfterObjectKeys": true,
+  "disallowSpaceAfterPrefixUnaryOperators": true,
+  "disallowSpaceBeforePostfixUnaryOperators": true,
+  "disallowSpacesInCallExpression": true,
+  "disallowTrailingComma": true,
+  "disallowTrailingWhitespace": true,
+  "disallowYodaConditions": true,
+
+  "requireCommaBeforeLineBreak": true,
+  "requireOperatorBeforeLineBreak": true,
+  "requireSpaceAfterBinaryOperators": true,
+  "requireSpaceAfterKeywords": [ "if", "for", "while", "else", "try", "catch" ],
+  "requireSpaceAfterLineComment": true,
+  "requireSpaceBeforeBinaryOperators": true,
+  "requireSpaceBeforeBlockStatements": true,
+  "requireSpaceBeforeKeywords": [ "else", "catch" ],
+  "requireSpaceBeforeObjectValues": true,
+  "requireSpaceBetweenArguments": true,
+  "requireSpacesInAnonymousFunctionExpression": {
+    "beforeOpeningCurlyBrace": true
+  },
+  "requireSpacesInFunctionDeclaration": {
+    "beforeOpeningCurlyBrace": true
+  },
+  "requireSpacesInFunctionExpression": {
+    "beforeOpeningCurlyBrace": true
+  },
+  "requireSpacesInConditionalExpression": true,
+  "requireSpacesInForStatement": true,
+  "requireSpacesInsideArrayBrackets": "all",
+  "requireSpacesInsideObjectBrackets": "all",
+  "requireDotNotation": true,
+
+  "maximumLineLength": 80,
+  "validateIndentation": 2,
+  "validateLineBreaks": "LF",
+  "validateParameterSeparator": ", ",
+  "validateQuoteMarks": "'"
+}
diff --git a/node_modules/des.js/.jshintrc b/node_modules/des.js/.jshintrc
new file mode 100644
index 000000000..7e9739029
--- /dev/null
+++ b/node_modules/des.js/.jshintrc
@@ -0,0 +1,89 @@
+{
+    // JSHint Default Configuration File (as on JSHint website)
+    // See http://jshint.com/docs/ for more details
+
+    "maxerr"        : 50,       // {int} Maximum error before stopping
+
+    // Enforcing
+    "bitwise"       : false,     // true: Prohibit bitwise operators (&, |, ^, etc.)
+    "camelcase"     : false,     // true: Identifiers must be in camelCase
+    "curly"         : false,     // true: Require {} for every new block or scope
+    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison
+    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()
+    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
+    "immed"         : false,    // true: Require immediate invocations to be wrapped in parens e.g. `(function () { } ());`
+    "indent"        : 2,        // {int} Number of spaces to use for indentation
+    "latedef"       : true,     // true: Require variables/functions to be defined before being used
+    "newcap"        : true,     // true: Require capitalization of all constructor functions e.g. `new F()`
+    "noarg"         : true,     // true: Prohibit use of `arguments.caller` and `arguments.callee`
+    "noempty"       : false,    // true: Prohibit use of empty blocks
+    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.
+    "nonew"         : false,    // true: Prohibit use of constructors for side-effects (without assignment)
+    "plusplus"      : false,    // true: Prohibit use of `++` & `--`
+    "quotmark"      : "single", // Quotation mark consistency:
+                                //   false    : do nothing (default)
+                                //   true     : ensure whatever is used is consistent
+                                //   "single" : require single quotes
+                                //   "double" : require double quotes
+    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)
+    "unused"        : true,     // true: Require all defined variables be used
+    "strict"        : true,     // true: Requires all functions run in ES5 Strict Mode
+    "maxparams"     : false,    // {int} Max number of formal params allowed per function
+    "maxdepth"      : 3,        // {int} Max depth of nested blocks (within functions)
+    "maxstatements" : false,    // {int} Max number statements per function
+    "maxcomplexity" : false,    // {int} Max cyclomatic complexity per function
+    "maxlen"        : false,    // {int} Max number of characters per line
+
+    // Relaxing
+    "asi"           : false,     // true: Tolerate Automatic Semicolon Insertion (no semicolons)
+    "boss"          : false,     // true: Tolerate assignments where comparisons would be expected
+    "debug"         : false,     // true: Allow debugger statements e.g. browser breakpoints.
+    "eqnull"        : false,     // true: Tolerate use of `== null`
+    "es5"           : false,     // true: Allow ES5 syntax (ex: getters and setters)
+    "esnext"        : false,     // true: Allow ES.next (ES6) syntax (ex: `const`)
+    "moz"           : false,     // true: Allow Mozilla specific syntax (extends and overrides esnext features)
+                                 // (ex: `for each`, multiple try/catch, function expression…)
+    "evil"          : false,     // true: Tolerate use of `eval` and `new Function()`
+    "expr"          : false,     // true: Tolerate `ExpressionStatement` as Programs
+    "funcscope"     : false,     // true: Tolerate defining variables inside control statements
+    "globalstrict"  : false,     // true: Allow global "use strict" (also enables 'strict')
+    "iterator"      : false,     // true: Tolerate using the `__iterator__` property
+    "lastsemic"     : false,     // true: Tolerate omitting a semicolon for the last statement of a 1-line block
+    "laxbreak"      : false,     // true: Tolerate possibly unsafe line breakings
+    "laxcomma"      : false,     // true: Tolerate comma-first style coding
+    "loopfunc"      : false,     // true: Tolerate functions being defined in loops
+    "multistr"      : false,     // true: Tolerate multi-line strings
+    "noyield"       : false,     // true: Tolerate generator functions with no yield statement in them.
+    "notypeof"      : false,     // true: Tolerate invalid typeof operator values
+    "proto"         : false,     // true: Tolerate using the `__proto__` property
+    "scripturl"     : false,     // true: Tolerate script-targeted URLs
+    "shadow"        : true,      // true: Allows re-define variables later in code e.g. `var x=1; x=2;`
+    "sub"           : false,     // true: Tolerate using `[]` notation when it can still be expressed in dot notation
+    "supernew"      : false,     // true: Tolerate `new function () { ... };` and `new Object;`
+    "validthis"     : false,     // true: Tolerate using this in a non-constructor function
+
+    // Environments
+    "browser"       : true,     // Web Browser (window, document, etc)
+    "browserify"    : true,     // Browserify (node.js code in the browser)
+    "couch"         : false,    // CouchDB
+    "devel"         : true,     // Development/debugging (alert, confirm, etc)
+    "dojo"          : false,    // Dojo Toolkit
+    "jasmine"       : false,    // Jasmine
+    "jquery"        : false,    // jQuery
+    "mocha"         : true,     // Mocha
+    "mootools"      : false,    // MooTools
+    "node"          : true,     // Node.js
+    "nonstandard"   : false,    // Widely adopted globals (escape, unescape, etc)
+    "prototypejs"   : false,    // Prototype and Scriptaculous
+    "qunit"         : false,    // QUnit
+    "rhino"         : false,    // Rhino
+    "shelljs"       : false,    // ShellJS
+    "worker"        : false,    // Web Workers
+    "wsh"           : false,    // Windows Scripting Host
+    "yui"           : false,    // Yahoo User Interface
+
+    // Custom Globals
+    "globals"       : {
+        "module": true
+    }        // additional predefined global variables
+}
diff --git a/node_modules/des.js/.npmignore b/node_modules/des.js/.npmignore
new file mode 100644
index 000000000..1ca957177
--- /dev/null
+++ b/node_modules/des.js/.npmignore
@@ -0,0 +1,2 @@
+node_modules/
+npm-debug.log
diff --git a/node_modules/des.js/README.md b/node_modules/des.js/README.md
new file mode 100644
index 000000000..976de33bd
--- /dev/null
+++ b/node_modules/des.js/README.md
@@ -0,0 +1,26 @@
+# DES.js
+
+## LICENSE
+
+This software is licensed under the MIT License.
+
+Copyright Fedor Indutny, 2015.
+
+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.
diff --git a/node_modules/des.js/lib/des.js b/node_modules/des.js/lib/des.js
new file mode 100644
index 000000000..2fd04a6dc
--- /dev/null
+++ b/node_modules/des.js/lib/des.js
@@ -0,0 +1,7 @@
+'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');
diff --git a/node_modules/des.js/lib/des/cbc.js b/node_modules/des.js/lib/des/cbc.js
new file mode 100644
index 000000000..208ea3133
--- /dev/null
+++ b/node_modules/des.js/lib/des/cbc.js
@@ -0,0 +1,65 @@
+'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];
+  }
+};
diff --git a/node_modules/des.js/lib/des/cipher.js b/node_modules/des.js/lib/des/cipher.js
new file mode 100644
index 000000000..d0090b4cd
--- /dev/null
+++ b/node_modules/des.js/lib/des/cipher.js
@@ -0,0 +1,141 @@
+'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);
+};
diff --git a/node_modules/des.js/lib/des/des.js b/node_modules/des.js/lib/des/des.js
new file mode 100644
index 000000000..b64a6d1b0
--- /dev/null
+++ b/node_modules/des.js/lib/des/des.js
@@ -0,0 +1,143 @@
+'use strict';
+
+var assert = require('minimalistic-assert');
+var inherits = require('inherits');
+
+var des = require('../des');
+var utils = des.utils;
+var Cipher = des.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);
+};
diff --git a/node_modules/des.js/lib/des/ede.js b/node_modules/des.js/lib/des/ede.js
new file mode 100644
index 000000000..cefc4a5c7
--- /dev/null
+++ b/node_modules/des.js/lib/des/ede.js
@@ -0,0 +1,55 @@
+'use strict';
+
+var assert = require('minimalistic-assert');
+var inherits = require('inherits');
+
+var des = require('../des');
+var Cipher = des.Cipher;
+var DES = des.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;
diff --git a/node_modules/des.js/lib/des/utils.js b/node_modules/des.js/lib/des/utils.js
new file mode 100644
index 000000000..08a5ccd9c
--- /dev/null
+++ b/node_modules/des.js/lib/des/utils.js
@@ -0,0 +1,256 @@
+'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(' ');
+};
diff --git a/node_modules/des.js/package.json b/node_modules/des.js/package.json
new file mode 100644
index 000000000..2ec391927
--- /dev/null
+++ b/node_modules/des.js/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "des.js",
+  "version": "1.0.0",
+  "description": "DES implementation",
+  "main": "lib/des.js",
+  "scripts": {
+    "test": "mocha --reporter=spec test/*-test.js && jscs lib/*.js lib/**/*.js test/*.js && jshint lib/*.js lib/**/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/indutny/des.js.git"
+  },
+  "keywords": [
+    "DES",
+    "3DES",
+    "EDE",
+    "CBC"
+  ],
+  "author": "Fedor Indutny <fedor@indutny.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/indutny/des.js/issues"
+  },
+  "homepage": "https://github.com/indutny/des.js#readme",
+  "devDependencies": {
+    "jscs": "^2.1.1",
+    "jshint": "^2.8.0",
+    "mocha": "^2.3.0"
+  },
+  "dependencies": {
+    "inherits": "^2.0.1",
+    "minimalistic-assert": "^1.0.0"
+  }
+}
diff --git a/node_modules/des.js/test/cbc-test.js b/node_modules/des.js/test/cbc-test.js
new file mode 100644
index 000000000..d07881c13
--- /dev/null
+++ b/node_modules/des.js/test/cbc-test.js
@@ -0,0 +1,73 @@
+'use strict';
+
+var assert = require('assert');
+var crypto = require('crypto');
+var Buffer = require('buffer').Buffer;
+
+var des = require('../');
+
+var fixtures = require('./fixtures');
+var bin = fixtures.bin;
+
+describe('DES-CBC', function() {
+  var CBC = des.CBC.instantiate(des.DES);
+
+  describe('encryption/decryption', function() {
+    var vectors = [
+      {
+        key: '133457799bbcdff1',
+        iv: '0102030405060708',
+        input: '0123456789abcdef'
+      },
+      {
+        key: '0000000000000000',
+        iv: 'ffffffffffffffff',
+        input: '0000000000000000'
+      },
+      {
+        key: 'a3a3a3a3b3b3b3b3',
+        iv: 'cdcdcdcdcdcdcdcd',
+        input: 'cccccccccccccccc'
+      },
+      {
+        key: 'deadbeefabbadead',
+        iv: 'a0da0da0da0da0da',
+        input: '0102030405060708090a'
+      },
+      {
+        key: 'aabbccddeeff0011',
+        iv: 'fefefefefefefefe',
+        input: '0102030405060708090a0102030405060708090a0102030405060708090a' +
+               '0102030405060708090a0102030405060607080a0102030405060708090a'
+      }
+    ];
+
+    vectors.forEach(function(vec, i) {
+      it('should encrypt vector ' + i, function() {
+        var key = new Buffer(vec.key, 'hex');
+        var iv = new Buffer(vec.iv, 'hex');
+        var input = new Buffer(vec.input, 'hex');
+
+        var enc = CBC.create({
+          type: 'encrypt',
+          key: key,
+          iv: iv
+        });
+        var out = new Buffer(enc.update(input).concat(enc.final()));
+
+        var cipher = crypto.createCipheriv('des-cbc', key, iv);
+        var expected = Buffer.concat([ cipher.update(input), cipher.final() ]);
+
+        assert.deepEqual(out, expected);
+
+        var dec = CBC.create({
+          type: 'decrypt',
+          key: key,
+          iv: iv
+        });
+        assert.deepEqual(new Buffer(dec.update(out).concat(dec.final())),
+                         input);
+      });
+    });
+  });
+});
diff --git a/node_modules/des.js/test/des-test.js b/node_modules/des.js/test/des-test.js
new file mode 100644
index 000000000..b6a5ee84f
--- /dev/null
+++ b/node_modules/des.js/test/des-test.js
@@ -0,0 +1,139 @@
+'use strict';
+
+var assert = require('assert');
+var crypto = require('crypto');
+var Buffer = require('buffer').Buffer;
+
+var des = require('../');
+
+var fixtures = require('./fixtures');
+var bin = fixtures.bin;
+
+describe('DES', function() {
+  describe('Key Derivation', function() {
+    it('should derive proper keys', function() {
+      var d = des.DES.create({
+        type: 'encrypt',
+        key: [ 0x13, 0x34, 0x57, 0x79, 0x9B, 0xBC, 0xDF, 0xF1 ]
+      });
+
+      var expected = [
+        '000110 110000 001011 101111',
+        '111111 000111 000001 110010',
+        '011110 011010 111011 011001',
+        '110110 111100 100111 100101',
+        '010101 011111 110010 001010',
+        '010000 101100 111110 011001',
+        '011100 101010 110111 010110',
+        '110110 110011 010100 011101',
+        '011111 001110 110000 000111',
+        '111010 110101 001110 101000',
+        '011000 111010 010100 111110',
+        '010100 000111 101100 101111',
+        '111011 001000 010010 110111',
+        '111101 100001 100010 111100',
+        '111101 111000 101000 111010',
+        '110000 010011 101111 111011',
+        '111000 001101 101111 101011',
+        '111011 011110 011110 000001',
+        '101100 011111 001101 000111',
+        '101110 100100 011001 001111',
+        '001000 010101 111111 010011',
+        '110111 101101 001110 000110',
+        '011101 010111 000111 110101',
+        '100101 000110 011111 101001',
+        '100101 111100 010111 010001',
+        '111110 101011 101001 000001',
+        '010111 110100 001110 110111',
+        '111100 101110 011100 111010',
+        '101111 111001 000110 001101',
+        '001111 010011 111100 001010',
+        '110010 110011 110110 001011',
+        '000011 100001 011111 110101'
+      ];
+
+      expected = expected.map(fixtures.bin);
+      assert.deepEqual(d._desState.keys, expected);
+    });
+  });
+
+  describe('encryption/decryption', function() {
+    var vectors = [
+      {
+        key: '133457799bbcdff1',
+        input: '0123456789abcdef'
+      },
+      {
+        key: '0000000000000000',
+        input: '0000000000000000'
+      },
+      {
+        key: 'a3a3a3a3b3b3b3b3',
+        input: 'cccccccccccccccc'
+      },
+      {
+        key: 'deadbeefabbadead',
+        input: '0102030405060708090a'
+      },
+      {
+        key: 'aabbccddeeff0011',
+        input: '0102030405060708090a0102030405060708090a0102030405060708090a' +
+               '0102030405060708090a0102030405060607080a0102030405060708090a'
+      }
+    ];
+
+    vectors.forEach(function(vec, i) {
+      it('should encrypt vector ' + i, function() {
+        var key = new Buffer(vec.key, 'hex');
+        var input = new Buffer(vec.input, 'hex');
+
+        var enc = des.DES.create({
+          type: 'encrypt',
+          key: key
+        });
+        var dec = des.DES.create({
+          type: 'decrypt',
+          key: key
+        });
+        var out = new Buffer(enc.update(input).concat(enc.final()));
+
+        var cipher = crypto.createCipheriv('des-ecb', key, new Buffer(0));
+        var expected = Buffer.concat([ cipher.update(input), cipher.final() ]);
+
+        assert.deepEqual(out, expected);
+
+        assert.deepEqual(new Buffer(dec.update(out).concat(dec.final())),
+                         input);
+      });
+    });
+
+    it('should buffer during encryption/decryption', function() {
+      var key = new Buffer('0102030405060708', 'hex');
+      var chunk = new Buffer('01020304050607', 'hex');
+      var count = 257;
+      var expected = new Buffer(
+          new Array(count + 1).join('01020304050607'), 'hex');
+
+      var enc = des.DES.create({
+        type: 'encrypt',
+        key: key
+      });
+      var cipher = [];
+      for (var i = 0; i < count; i++)
+        cipher = cipher.concat(enc.update(chunk));
+      cipher = cipher.concat(enc.final());
+
+      var dec = des.DES.create({
+        type: 'decrypt',
+        key: key
+      });
+      var out = [];
+      for (var i = 0; i < count; i++)
+        out = out.concat(dec.update(cipher.slice(i * 7, (i + 1) * 7)));
+      out = out.concat(dec.final(cipher.slice(i * 7)));
+
+      out = new Buffer(out);
+      assert.deepEqual(out, expected);
+    });
+  });
+});
diff --git a/node_modules/des.js/test/ede-test.js b/node_modules/des.js/test/ede-test.js
new file mode 100644
index 000000000..116a76a82
--- /dev/null
+++ b/node_modules/des.js/test/ede-test.js
@@ -0,0 +1,73 @@
+'use strict';
+
+var assert = require('assert');
+var crypto = require('crypto');
+var Buffer = require('buffer').Buffer;
+
+var des = require('../');
+
+var fixtures = require('./fixtures');
+var bin = fixtures.bin;
+
+describe('DES-EDE-CBC', function() {
+  var CBC = des.CBC.instantiate(des.EDE);
+
+  describe('encryption/decryption', function() {
+    var vectors = [
+      {
+        key: new Array(4).join('133457799bbcdff1'),
+        iv: '0102030405060708',
+        input: '0123456789abcdef'
+      },
+      {
+        key: new Array(4).join('0000000000000000'),
+        iv: 'ffffffffffffffff',
+        input: '0000000000000000'
+      },
+      {
+        key: new Array(4).join('a3a3a3a3b3b3b3b3'),
+        iv: 'cdcdcdcdcdcdcdcd',
+        input: 'cccccccccccccccc'
+      },
+      {
+        key: new Array(4).join('deadbeefabbadead'),
+        iv: 'a0da0da0da0da0da',
+        input: '0102030405060708090a'
+      },
+      {
+        key: 'aabbccddeeff0011' + '1111222233334444' + 'ffffeeeeddddcccc',
+        iv: 'fefefefefefefefe',
+        input: '0102030405060708090a0102030405060708090a0102030405060708090a' +
+               '0102030405060708090a0102030405060607080a0102030405060708090a'
+      }
+    ];
+
+    vectors.forEach(function(vec, i) {
+      it('should encrypt vector ' + i, function() {
+        var key = new Buffer(vec.key, 'hex');
+        var iv = new Buffer(vec.iv, 'hex');
+        var input = new Buffer(vec.input, 'hex');
+
+        var enc = CBC.create({
+          type: 'encrypt',
+          key: key,
+          iv: iv
+        });
+        var out = new Buffer(enc.update(input).concat(enc.final()));
+
+        var cipher = crypto.createCipheriv('des-ede3-cbc', key, iv);
+        var expected = Buffer.concat([ cipher.update(input), cipher.final() ]);
+
+        assert.deepEqual(out, expected);
+
+        var dec = CBC.create({
+          type: 'decrypt',
+          key: key,
+          iv: iv
+        });
+        assert.deepEqual(new Buffer(dec.update(out).concat(dec.final())),
+                         input);
+      });
+    });
+  });
+});
diff --git a/node_modules/des.js/test/fixtures.js b/node_modules/des.js/test/fixtures.js
new file mode 100644
index 000000000..fe8ccd8b6
--- /dev/null
+++ b/node_modules/des.js/test/fixtures.js
@@ -0,0 +1,5 @@
+'use strict';
+
+exports.bin = function bin(str) {
+  return parseInt(str.replace(/[^01]/g, ''), 2);
+}
diff --git a/node_modules/des.js/test/utils-test.js b/node_modules/des.js/test/utils-test.js
new file mode 100644
index 000000000..4c576de08
--- /dev/null
+++ b/node_modules/des.js/test/utils-test.js
@@ -0,0 +1,169 @@
+'use strict';
+
+var assert = require('assert');
+
+var des = require('../');
+var utils = des.utils;
+
+var fixtures = require('./fixtures');
+var bin = fixtures.bin;
+
+describe('utils', function() {
+  describe('IP', function() {
+    it('should permute properly', function() {
+      var out = new Array(2);
+      var inp = [
+        bin('00000001 00100011 01000101 01100111'),
+        bin('10001001 10101011 11001101 11101111')
+      ];
+
+      utils.ip(inp[0], inp[1], out, 0);
+
+      var expected = [
+        bin('11001100 00000000 11001100 11111111'),
+        bin('11110000 10101010 11110000 10101010')
+      ];
+
+      assert.deepEqual(out, expected);
+    });
+
+    it('should rev-permute properly', function() {
+      var out = new Array(2);
+      var inp = [
+        bin('11001100 00000000 11001100 11111111'),
+        bin('11110000 10101010 11110000 10101010')
+      ];
+
+      utils.rip(inp[0], inp[1], out, 0);
+
+      var expected = [
+        bin('00000001 00100011 01000101 01100111'),
+        bin('10001001 10101011 11001101 11101111')
+      ];
+
+      assert.deepEqual(out, expected);
+    });
+  });
+
+  describe('PC1', function() {
+    it('should permute properly', function() {
+      var out = new Array(2);
+      var inp = [
+        bin('00010011 00110100 01010111 01111001'),
+        bin('10011011 10111100 11011111 11110001')
+      ];
+
+      utils.pc1(inp[0], inp[1], out, 0);
+
+      var expected = [
+        bin('1111000 0110011 0010101 0101111'),
+        bin('0101010 1011001 1001111 0001111')
+      ];
+
+      assert.deepEqual(out, expected);
+    });
+  });
+
+  describe('r28shl', function() {
+    it('should shl properly', function() {
+      assert.equal(utils.r28shl(bin('1111000011001100101010101111'), 1),
+                   bin('1110000110011001010101011111'));
+
+      assert.equal(utils.r28shl(bin('0101010101100110011110001111'), 1),
+                   bin('1010101011001100111100011110'));
+
+      assert.equal(utils.r28shl(bin('1111000011001100101010101111'), 4),
+                   bin('0000110011001010101011111111'));
+
+      assert.equal(utils.r28shl(bin('0101010101100110011110001111'), 4),
+                   bin('0101011001100111100011110101'));
+    });
+  });
+
+  describe('PC2', function() {
+    it('should permute properly', function() {
+      var out = new Array(2);
+      var inp = [
+        bin('1110000 1100110 0101010 1011111'),
+        bin('1010101 0110011 0011110 0011110')
+      ];
+
+      utils.pc2(inp[0], inp[1], out, 0);
+
+      var expected = [
+        bin('000110 110000 001011 101111'),
+        bin('111111 000111 000001 110010')
+      ];
+
+      assert.deepEqual(out, expected);
+    });
+  });
+
+  describe('readUInt32BE', function() {
+    it('should read number properly', function() {
+      var a = [ 0xde, 0xad, 0xbe, 0xef ];
+      var o = utils.readUInt32BE(a, 0);
+      assert.equal(o, 0xdeadbeef);
+    });
+  });
+
+  describe('writeUInt32BE', function() {
+    it('should read number properly', function() {
+      var a = [ 0, 0, 0, 0 ];
+      utils.writeUInt32BE(a, 0xdeadbeef, 0);
+      var expected = [ 0xde, 0xad, 0xbe, 0xef ];
+      assert.deepEqual(a, expected);
+    });
+  });
+
+  describe('expand', function() {
+    it('should expand', function() {
+      var out = [ 0, 0 ];
+      utils.expand(bin('1111 0000 1010 1010 1111 0000 1010 1010'), out, 0);
+      var expected = [
+        bin('011110 100001 010101 010101'),
+        bin('011110 100001 010101 010101')
+      ];
+      assert.deepEqual(out, expected);
+    });
+
+    it('should expand with low 1', function() {
+      var out = [ 0, 0 ];
+      utils.expand(bin('1111 0000 1010 1010 1111 0000 1010 1011'), out, 0);
+      var expected = [
+        bin('111110 100001 010101 010101'),
+        bin('011110 100001 010101 010111')
+      ];
+      assert.deepEqual(out, expected);
+    });
+
+    it('should expand with low 1', function() {
+      var out = [ 0, 0 ];
+      utils.expand(bin('10100010 01011100 00001011 11110100'), out, 0);
+      var expected = [
+        bin('010100 000100 001011 111000'),
+        bin('000001 010111 111110 101001')
+      ];
+      assert.deepEqual(out, expected);
+    });
+  });
+
+  describe('substitute', function() {
+    it('should substitute', function() {
+      var input = [
+        bin('011000 010001 011110 111010'),
+        bin('100001 100110 010100 100111')
+      ];
+      var output = utils.substitute(input[0], input[1]);
+      assert.equal(output, bin('0101 1100 1000 0010 1011 0101 1001 0111'));
+    });
+  });
+
+  describe('permute', function() {
+    it('should permute', function() {
+      var output = utils.permute(
+          bin('0101 1100 1000 0010 1011 0101 1001 0111'));
+      assert.equal(output, bin('0010 0011 0100 1010 1010 1001 1011 1011'));
+    });
+  });
+});