corrade-nucleus-nucleons – Blame information for rev 4
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2 | office | 1 | /* |
2 | CryptoJS v3.1.2 |
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3 | code.google.com/p/crypto-js |
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4 | (c) 2009-2013 by Jeff Mott. All rights reserved. |
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5 | code.google.com/p/crypto-js/wiki/License |
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6 | */ |
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7 | (function () { |
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8 | // Shortcuts |
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9 | var C = CryptoJS; |
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10 | var C_lib = C.lib; |
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11 | var Base = C_lib.Base; |
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12 | var WordArray = C_lib.WordArray; |
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13 | var C_algo = C.algo; |
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14 | var MD5 = C_algo.MD5; |
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15 | |||
16 | /** |
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17 | * This key derivation function is meant to conform with EVP_BytesToKey. |
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18 | * www.openssl.org/docs/crypto/EVP_BytesToKey.html |
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19 | */ |
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20 | var EvpKDF = C_algo.EvpKDF = Base.extend({ |
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21 | /** |
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22 | * Configuration options. |
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23 | * |
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24 | * @property {number} keySize The key size in words to generate. Default: 4 (128 bits) |
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25 | * @property {Hasher} hasher The hash algorithm to use. Default: MD5 |
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26 | * @property {number} iterations The number of iterations to perform. Default: 1 |
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27 | */ |
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28 | cfg: Base.extend({ |
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29 | keySize: 128/32, |
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30 | hasher: MD5, |
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31 | iterations: 1 |
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32 | }), |
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33 | |||
34 | /** |
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35 | * Initializes a newly created key derivation function. |
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36 | * |
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37 | * @param {Object} cfg (Optional) The configuration options to use for the derivation. |
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38 | * |
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39 | * @example |
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40 | * |
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41 | * var kdf = CryptoJS.algo.EvpKDF.create(); |
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42 | * var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8 }); |
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43 | * var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8, iterations: 1000 }); |
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44 | */ |
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45 | init: function (cfg) { |
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46 | this.cfg = this.cfg.extend(cfg); |
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47 | }, |
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48 | |||
49 | /** |
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50 | * Derives a key from a password. |
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51 | * |
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52 | * @param {WordArray|string} password The password. |
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53 | * @param {WordArray|string} salt A salt. |
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54 | * |
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55 | * @return {WordArray} The derived key. |
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56 | * |
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57 | * @example |
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58 | * |
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59 | * var key = kdf.compute(password, salt); |
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60 | */ |
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61 | compute: function (password, salt) { |
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62 | // Shortcut |
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63 | var cfg = this.cfg; |
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64 | |||
65 | // Init hasher |
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66 | var hasher = cfg.hasher.create(); |
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67 | |||
68 | // Initial values |
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69 | var derivedKey = WordArray.create(); |
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70 | |||
71 | // Shortcuts |
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72 | var derivedKeyWords = derivedKey.words; |
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73 | var keySize = cfg.keySize; |
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74 | var iterations = cfg.iterations; |
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75 | |||
76 | // Generate key |
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77 | while (derivedKeyWords.length < keySize) {> |
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78 | < keySize) { if (block) {> |
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79 | < keySize) { hasher.update(block);> |
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80 | < keySize) { }> |
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81 | < keySize) { var block = hasher.update(password).finalize(salt);> |
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82 | < keySize) { hasher.reset();> |
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83 | |||
84 | < keySize) { // Iterations> |
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85 | < keySize) { for (var i = 1; i < iterations; i++) {>> |
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86 | < keySize) {< iterations; i++) { block = hasher.finalize(block);>> |
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87 | < keySize) {< iterations; i++) { hasher.reset();>> |
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88 | < keySize) {< iterations; i++) { }>> |
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89 | |||
90 | < keySize) {< iterations; i++) { derivedKey.concat(block);>> |
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91 | < keySize) {< iterations; i++) { }>> |
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92 | < keySize) {< iterations; i++) { derivedKey.sigBytes = keySize * 4;>> |
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93 | |||
94 | < keySize) {< iterations; i++) { return derivedKey;>> |
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95 | < keySize) {< iterations; i++) { }>> |
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96 | < keySize) {< iterations; i++) { });>> |
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97 | |||
98 | < keySize) {< iterations; i++) { /**>> |
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99 | < keySize) {< iterations; i++) { * Derives a key from a password.>> |
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100 | < keySize) {< iterations; i++) { *>> |
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101 | < keySize) {< iterations; i++) { * @param {WordArray|string} password The password.>> |
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102 | < keySize) {< iterations; i++) { * @param {WordArray|string} salt A salt.>> |
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103 | < keySize) {< iterations; i++) { * @param {Object} cfg (Optional) The configuration options to use for this computation.>> |
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104 | < keySize) {< iterations; i++) { *>> |
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105 | < keySize) {< iterations; i++) { * @return {WordArray} The derived key.>> |
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106 | < keySize) {< iterations; i++) { *>> |
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107 | < keySize) {< iterations; i++) { * @static>> |
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108 | < keySize) {< iterations; i++) { *>> |
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109 | < keySize) {< iterations; i++) { * @example>> |
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110 | < keySize) {< iterations; i++) { *>> |
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111 | < keySize) {< iterations; i++) { * var key = CryptoJS.EvpKDF(password, salt);>> |
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112 | < keySize) {< iterations; i++) { * var key = CryptoJS.EvpKDF(password, salt, { keySize: 8 });>> |
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113 | < keySize) {< iterations; i++) { * var key = CryptoJS.EvpKDF(password, salt, { keySize: 8, iterations: 1000 });>> |
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114 | < keySize) {< iterations; i++) { */>> |
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115 | < keySize) {< iterations; i++) { C.EvpKDF = function (password, salt, cfg) {>> |
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116 | < keySize) {< iterations; i++) { return EvpKDF.create(cfg).compute(password, salt);>> |
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117 | < keySize) {< iterations; i++) { };>> |
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118 | < keySize) {< iterations; i++) {}());>> |