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UnaMD5

一个MD5库

Этот скрипт недоступен для установки пользователем. Он является библиотекой, которая подключается к другим скриптам мета-ключом // @require https://update.greasyfork.org/scripts/514389/1472695/UnaMD5.js

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