1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | 1× 1× 1× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 1× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 3× 25× 25× 25× 25× 25× 3× 1× 1× 3× 1× 1× | /* * telepathy * https://github.com/rummik/telepathy * * Copyright (c) 2012 rummik * Licensed under the MPL license. */ var CryptoJS = require('crypto-js'); var BigInteger = require('bigdecimal').BigInteger; /** * Telepathy constructor * @constructor * @param {object|string} [options] */ function Telepathy(options) { 'use strict'; options = options || {}; Iif (typeof options == 'string') options = { secret: options }; /** Private variable shared secret */ var _secret = options.secret || ''; delete options.secret; this.user = options.user || ''; this.alphabet = options.alphabet || Telepathy.alphabet.base62; this.length = options.length || 10; this.domain = options.domain || ''; this.algorithm = options.algorithm || 'SHA256'; /** * Set the private secret we'll be using in generating passwords * @param {string} secret */ this.setSecret = function(secret) { _secret = secret || ''; }; /** * Generate a password * @param {object|string|number} [options] * @returns {string} Generated password * @example * var telepathy = new Telepathy('secret'); * console.log(telepathy.password('google.com')); */ this.password = function(options) { return this._password(_secret, options); }; } /** @ignore */ Telepathy.prototype._password = function(secret, options) { 'use strict'; options = options || {}; Iif (typeof options == 'string') options = { domain: options }; Iif (typeof options == 'number') options = { index: options }; secret = options.secret || secret; var length = parseInt(options.length || this.length || 10, 10); var index = Math.max(parseInt(options.index || 0, 10), 0); var len = length * (index + 1); var algorithm = options.algorithm || this.algorithm; var hasher = Telepathy.algorithms[algorithm.toUpperCase()] || Telepathy.algorithms.SHA256; var alphabet = options.alphabet || this.alphabet; var base = new BigInteger(alphabet.length.toString()); var user = options.user || this.user; var domain = options.domain || this.domain; var data = user + domain; var password = ''; while (password.length < len) { // create hash, and make it a big integer var hash = new BigInteger(hasher(data + password, secret).toString(), 16); // convert hash to an arbitrary base while (hash.compareTo(base) >= 0 && password.length < len) { var result = hash.divideAndRemainder(base); var remainder = result[1]; hash = result[0]; password = alphabet[remainder] + password; Iif (hash.compareTo(base) == -1 && password.length < len) password = alphabet[hash] + password; } } return password.substr(0, length); }; (function() { 'use strict'; /** * Available hashing algorithms * @namespace */ Telepathy.algorithms = { MD5: function(data, secret) { return CryptoJS.MD5(secret + data); }, SHA1: function(data, secret) { return CryptoJS.SHA1(secret + data); }, SHA512: function(data, secret) { return CryptoJS.SHA512(secret + data); }, SHA384: function(data, secret) { return CryptoJS.SHA384(secret + data); }, SHA256: function(data, secret) { return CryptoJS.SHA256(secret + data); }, SHA224: function(data, secret) { return CryptoJS.SHA224(secret + data); }, SHA3: function(data, secret) { return Telepathy.algorithms.SHA3_512(data, secret); }, SHA3_512: function(data, secret) { return CryptoJS.SHA3(secret + data, { outputLength: 512 }); }, SHA3_384: function(data, secret) { return CryptoJS.SHA3(secret + data, { outputLength: 384 }); }, SHA3_256: function(data, secret) { return CryptoJS.SHA3(secret + data, { outputLength: 256 }); }, SHA3_224: function(data, secret) { return CryptoJS.SHA3(secret + data, { outputLength: 224 }); }, RIPEMD160: function(data, secret) { return CryptoJS.RIPEMD160(secret + data); }, }; })(); /** * Output alphabets used in password generation (larger alphabets are better) * @readonly * @namespace * @property {string} base94 WARNING: this could break insecure login forms * @property {string} base62 * @property {string} base36 * @property {string} base16 * @property {string} base10 * @property {string} base8 * @property {string} base5 * @property {string} base2 */ Telepathy.alphabet = { base94: '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~', base62: '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', base36: '0123456789abcdefghijklmnopqrstuvwxyz', base16: '0123456789abcdef', base10: '0123456789', base8: '01234567', base5: '01234', base2: '01', }; module.exports = Telepathy; |