JAVASCRIPT   15

md5.js

Guest on 26th July 2021 04:12:18 PM

  1. /*
  2.  * JavaScript MD5
  3.  * https://github.com/blueimp/JavaScript-MD5
  4.  *
  5.  * Copyright  Sebastian Tschan
  6.  * https://blueimp.net
  7.  *
  8.  * Licensed under the MIT license:
  9.  * https://opensource.org/licenses/MIT
  10.  *
  11.  * Based on
  12.  * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
  13.  * Digest Algorithm, as defined in RFC 1321.
  14.  * Version 2.2 Copyright (C) Paul Johnston 1999 - 2019
  15.  * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
  16.  * Distributed under the BSD License
  17.  * See http://pajhome.org.uk/crypt/md5 for more info.
  18.  */
  19.  
  20. /* global define */
  21.  
  22. ;(function ($) {
  23.   'use strict'
  24.  
  25.   /*
  26.   * Add integers, wrapping at 2^32. This uses 16-bit operations internally
  27.   * to work around bugs in some JS interpreters.
  28.   */
  29.   function safeAdd (x, y) {
  30.     var lsw = (x & 0xffff) + (y & 0xffff)
  31.     var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
  32.     return (msw << 16) | (lsw & 0xffff)
  33.   }
  34.  
  35.   /*
  36.   * Bitwise rotate a 32-bit number to the left.
  37.   */
  38.   function bitRotateLeft (num, cnt) {
  39.     return (num << cnt) | (num >>> (32 - cnt))
  40.   }
  41.  
  42.   /*
  43.   * These functions implement the four basic operations the algorithm uses.
  44.   */
  45.   function md5cmn (q, a, b, x, s, t) {
  46.     return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b)
  47.   }
  48.   function md5ff (a, b, c, d, x, s, t) {
  49.     return md5cmn((b & c) | (~b & d), a, b, x, s, t)
  50.   }
  51.   function md5gg (a, b, c, d, x, s, t) {
  52.     return md5cmn((b & d) | (c & ~d), a, b, x, s, t)
  53.   }
  54.   function md5hh (a, b, c, d, x, s, t) {
  55.     return md5cmn(b ^ c ^ d, a, b, x, s, t)
  56.   }
  57.   function md5ii (a, b, c, d, x, s, t) {
  58.     return md5cmn(c ^ (b | ~d), a, b, x, s, t)
  59.   }
  60.  
  61.   /*
  62.   * Calculate the MD5 of an array of little-endian words, and a bit length.
  63.   */
  64.   function binlMD5 (x, len) {
  65.     /* append padding */
  66.     x[len >> 5] |= 0x80 << (len % 32)
  67.     x[((len + 64) >>> 9 << 4) + 14] = len
  68.  
  69.     var i
  70.     var olda
  71.     var oldb
  72.     var oldc
  73.     var oldd
  74.     var a = 1732584193
  75.     var b = -271733879
  76.     var c = -1732584194
  77.     var d = 271733878
  78.  
  79.     for (i = 0; i < x.length; i += 16) {
  80.       olda = a
  81.       oldb = b
  82.       oldc = c
  83.       oldd = d
  84.  
  85.       a = md5ff(a, b, c, d, x[i], 7, -680876936)
  86.       d = md5ff(d, a, b, c, x[i + 1], 12, -389564586)
  87.       c = md5ff(c, d, a, b, x[i + 2], 17, 606105819)
  88.       b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330)
  89.       a = md5ff(a, b, c, d, x[i + 4], 7, -176418897)
  90.       d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426)
  91.       c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341)
  92.       b = md5ff(b, c, d, a, x[i + 7], 22, -45705983)
  93.       a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416)
  94.       d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417)
  95.       c = md5ff(c, d, a, b, x[i + 10], 17, -42063)
  96.       b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162)
  97.       a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682)
  98.       d = md5ff(d, a, b, c, x[i + 13], 12, -40341101)
  99.       c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290)
  100.       b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329)
  101.  
  102.       a = md5gg(a, b, c, d, x[i + 1], 5, -165796510)
  103.       d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632)
  104.       c = md5gg(c, d, a, b, x[i + 11], 14, 643717713)
  105.       b = md5gg(b, c, d, a, x[i], 20, -373897302)
  106.       a = md5gg(a, b, c, d, x[i + 5], 5, -701558691)
  107.       d = md5gg(d, a, b, c, x[i + 10], 9, 38016083)
  108.       c = md5gg(c, d, a, b, x[i + 15], 14, -660478335)
  109.       b = md5gg(b, c, d, a, x[i + 4], 20, -405537848)
  110.       a = md5gg(a, b, c, d, x[i + 9], 5, 568446438)
  111.       d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690)
  112.       c = md5gg(c, d, a, b, x[i + 3], 14, -187363961)
  113.       b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501)
  114.       a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467)
  115.       d = md5gg(d, a, b, c, x[i + 2], 9, -51403784)
  116.       c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473)
  117.       b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734)
  118.  
  119.       a = md5hh(a, b, c, d, x[i + 5], 4, -378558)
  120.       d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463)
  121.       c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562)
  122.       b = md5hh(b, c, d, a, x[i + 14], 23, -35309556)
  123.       a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060)
  124.       d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353)
  125.       c = md5hh(c, d, a, b, x[i + 7], 16, -155497632)
  126.       b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640)
  127.       a = md5hh(a, b, c, d, x[i + 13], 4, 681279174)
  128.       d = md5hh(d, a, b, c, x[i], 11, -358537222)
  129.       c = md5hh(c, d, a, b, x[i + 3], 16, -722521979)
  130.       b = md5hh(b, c, d, a, x[i + 6], 23, 76029189)
  131.       a = md5hh(a, b, c, d, x[i + 9], 4, -640364487)
  132.       d = md5hh(d, a, b, c, x[i + 12], 11, -421815835)
  133.       c = md5hh(c, d, a, b, x[i + 15], 16, 530742520)
  134.       b = md5hh(b, c, d, a, x[i + 2], 23, -995338651)
  135.  
  136.       a = md5ii(a, b, c, d, x[i], 6, -198630844)
  137.       d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415)
  138.       c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905)
  139.       b = md5ii(b, c, d, a, x[i + 5], 21, -57434055)
  140.       a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571)
  141.       d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606)
  142.       c = md5ii(c, d, a, b, x[i + 10], 15, -1051523)
  143.       b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799)
  144.       a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359)
  145.       d = md5ii(d, a, b, c, x[i + 15], 10, -30611744)
  146.       c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380)
  147.       b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649)
  148.       a = md5ii(a, b, c, d, x[i + 4], 6, -145523070)
  149.       d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379)
  150.       c = md5ii(c, d, a, b, x[i + 2], 15, 718787259)
  151.       b = md5ii(b, c, d, a, x[i + 9], 21, -343485551)
  152.  
  153.       a = safeAdd(a, olda)
  154.       b = safeAdd(b, oldb)
  155.       c = safeAdd(c, oldc)
  156.       d = safeAdd(d, oldd)
  157.     }
  158.     return [a, b, c, d]
  159.   }
  160.  
  161.   /*
  162.   * Convert an array of little-endian words to a string
  163.   */
  164.   function binl2rstr (input) {
  165.     var i
  166.     var output = ''
  167.     var length32 = input.length * 32
  168.     for (i = 0; i < length32; i += 8) {
  169.       output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xff)
  170.     }
  171.     return output
  172.   }
  173.  
  174.   /*
  175.   * Convert a raw string to an array of little-endian words
  176.   * Characters >255 have their high-byte silently ignored.
  177.   */
  178.   function rstr2binl (input) {
  179.     var i
  180.     var output = []
  181.     output[(input.length >> 2) - 1] = undefined
  182.     for (i = 0; i < output.length; i += 1) {
  183.       output[i] = 0
  184.     }
  185.     var length8 = input.length * 8
  186.     for (i = 0; i < length8; i += 8) {
  187.       output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << (i % 32)
  188.     }
  189.     return output
  190.   }
  191.  
  192.   /*
  193.   * Calculate the MD5 of a raw string
  194.   */
  195.   function rstrMD5 (s) {
  196.     return binl2rstr(binlMD5(rstr2binl(s), s.length * 8))
  197.   }
  198.  
  199.   /*
  200.   * Calculate the HMAC-MD5, of a key and some data (raw strings)
  201.   */
  202.   function rstrHMACMD5 (key, data) {
  203.     var i
  204.     var bkey = rstr2binl(key)
  205.     var ipad = []
  206.     var opad = []
  207.     var hash
  208.     ipad[15] = opad[15] = undefined
  209.     if (bkey.length > 16) {
  210.       bkey = binlMD5(bkey, key.length * 8)
  211.     }
  212.     for (i = 0; i < 16; i += 1) {
  213.       ipad[i] = bkey[i] ^ 0x36363636
  214.       opad[i] = bkey[i] ^ 0x5c5c5c5c
  215.     }
  216.     hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8)
  217.     return binl2rstr(binlMD5(opad.concat(hash), 512 + 128))
  218.   }
  219.  
  220.   /*
  221.   * Convert a raw string to a hex string
  222.   */
  223.   function rstr2hex (input) {
  224.     var hexTab = '0123456789abcdef'
  225.     var output = ''
  226.     var x
  227.     var i
  228.     for (i = 0; i < input.length; i += 1) {
  229.       x = input.charCodeAt(i)
  230.       output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f)
  231.     }
  232.     return output
  233.   }
  234.  
  235.   /*
  236.   * Encode a string as utf-8
  237.   */
  238.   function str2rstrUTF8 (input) {
  239.     return unescape(encodeURIComponent(input))
  240.   }
  241.  
  242.   /*
  243.   * Take string arguments and return either raw or hex encoded strings
  244.   */
  245.   function rawMD5 (s) {
  246.     return rstrMD5(str2rstrUTF8(s))
  247.   }
  248.   function hexMD5 (s) {
  249.     return rstr2hex(rawMD5(s))
  250.   }
  251.   function rawHMACMD5 (k, d) {
  252.     return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d))
  253.   }
  254.   function hexHMACMD5 (k, d) {
  255.     return rstr2hex(rawHMACMD5(k, d))
  256.   }
  257.  
  258.   function md5 (string, key, raw) {
  259.     if (!key) {
  260.       if (!raw) {
  261.         return hexMD5(string)
  262.       }
  263.       return rawMD5(string)
  264.     }
  265.     if (!raw) {
  266.       return hexHMACMD5(key, string)
  267.     }
  268.     return rawHMACMD5(key, string)
  269.   }
  270.  
  271.   if (typeof define === 'function' && define.amd) {
  272.     define(function () {
  273.       return md5
  274.     })
  275.   } else if (typeof module === 'object' && module.exports) {
  276.     module.exports = md5
  277.   } else {
  278.     $.md5 = md5
  279.   }
  280. })(this)

Raw Paste


Login or Register to edit or fork this paste. It's free.