core.js

   1 /* Copyright (c) 2012 Robert Sesek <http://robert.sesek.com>
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to
   5  * deal in the Software without restriction, including without limitation the
   6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   7  * sell copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  19  * DEALINGS IN THE SOFTWARE.
  20  */
  21
  22 /**
  23  * SkeletonKey is view controller for generating secure passwords.
  24  *
  25  * @param {HTMLDocument} doc The document on which to operate.
  26  */
  27 var SkeletonKey = SkeletonKey || function(doc) {
  28   this._master = doc.getElementById('master');
  29   this._sitekey = doc.getElementById('sitekey');
  30   this._username = doc.getElementById('username');
  31   this._password = doc.getElementById('password');
  32   this._generateButton = doc.getElementById('generate');
  33   this._init();
  34 };
  35
  36 /**
  37  * The number of iterations to perform in PBKDF2.
  38  * @const {int}
  39  */
  40 SkeletonKey.prototype.ITERATIONS = 1000;
  41 /**
  42  * The size of the key, in bytes.
  43  * @const {int}
  44  */
  45 SkeletonKey.prototype.KEYSIZE = 256/32;
  46
  47 /**
  48  * Initializes event handlers for the page.
  49  * @private
  50  */
  51 SkeletonKey.prototype._init = function() {
  52   this._generateButton.onclick = this._onGenerate.bind(this);
  53 };
  54
  55 /**
  56  * Event handler for generating a new password.
  57  * @param {Event} e
  58  * @private
  59  */
  60 SkeletonKey.prototype._onGenerate = function(e) {
  61   var salt = this._username.value + '@' + this._sitekey.value;
  62   // |key| is a WordArray of 32-bit words.
  63   var key = CryptoJS.PBKDF2(this._master.value, salt,
  64       {keySize: this.KEYSIZE, iterations: this.ITERATIONS});
  65   console.log(key);
  66 };