https://cdn.jeollailbo.com/script/md5.js

1/*
2 * JavaScript MD5
3 * https://github.com/blueimp/JavaScript-MD5
4 *
5 * Copyright 2011, Sebastian Tschan
6 * https://blueimp.net
7 *
8 * Licensed under the MIT license:
9 * http://www.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 - 2009
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) +
231      hexTab.charAt(x & 0x0F)
232    }
233    return output
234  }
235
236  /*
237  * Encode a string as utf-8
238  */
239  function str2rstrUTF8 (input) {
240    return unescape(encodeURIComponent(input))
241  }
242
243  /*
244  * Take string arguments and return either raw or hex encoded strings
245  */
246  function rawMD5 (s) {
247    return rstrMD5(str2rstrUTF8(s))
248  }
249  function hexMD5 (s) {
250    return rstr2hex(rawMD5(s))
251  }

252  function rawHMACMD5 (k, d) {
253    return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d))
254  }
255  function hexHMACMD5 (k, d) {
256    return rstr2hex(rawHMACMD5(k, d))
257  }
258
259  function md5 (string, key, raw) {
260    if (!key) {
261      if (!raw) {
262        return hexMD5(string)
263      }
264      return rawMD5(string)
265    }
266    if (!raw) {
267      return hexHMACMD5(key, string)
268    }
269    return rawHMACMD5(key, string)
270  }
271
272  if (typeof define === 'function' && define.amd) {
273    define(function () {
274      return md5
275    })
276  } else if (typeof module === 'object' && module.exports) {
277    module.exports = md5
278  } else {
279    $.md5 = md5
280  }
281}(this))