1 shouldBe("hexMD5('kde')", "'186cf28b76f2264e9fea8fcf91cb4f5d'");
4 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
5 * Digest Algorithm, as defined in RFC 1321.
6 * Version 1.1 Copyright (C) Paul Johnston 1999 - 2002.
7 * Code also contributed by Greg Holt
8 * See http://pajhome.org.uk/site/legal.html for details.
12 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
13 * to work around bugs in some JS interpreters.
15 function safe_add(x, y)
17 var lsw = (x & 0xFFFF) + (y & 0xFFFF)
18 var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
19 return (msw << 16) | (lsw & 0xFFFF)
23 * Bitwise rotate a 32-bit number to the left.
25 function rol(num, cnt)
27 return (num << cnt) | (num >>> (32 - cnt))
31 * These functions implement the four basic operations the algorithm uses.
33 function cmn(q, a, b, x, s, t)
35 return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
37 function ff(a, b, c, d, x, s, t)
39 return cmn((b & c) | ((~b) & d), a, b, x, s, t)
41 function gg(a, b, c, d, x, s, t)
43 return cmn((b & d) | (c & (~d)), a, b, x, s, t)
45 function hh(a, b, c, d, x, s, t)
47 return cmn(b ^ c ^ d, a, b, x, s, t)
49 function ii(a, b, c, d, x, s, t)
51 return cmn(c ^ (b | (~d)), a, b, x, s, t)
55 * Calculate the MD5 of an array of little-endian words, producing an array
56 * of little-endian words.
65 for(i = 0; i < x.length; i += 16)
72 a = ff(a, b, c, d, x[i+ 0], 7 , -680876936)
73 d = ff(d, a, b, c, x[i+ 1], 12, -389564586)
74 c = ff(c, d, a, b, x[i+ 2], 17, 606105819)
75 b = ff(b, c, d, a, x[i+ 3], 22, -1044525330)
76 a = ff(a, b, c, d, x[i+ 4], 7 , -176418897)
77 d = ff(d, a, b, c, x[i+ 5], 12, 1200080426)
78 c = ff(c, d, a, b, x[i+ 6], 17, -1473231341)
79 b = ff(b, c, d, a, x[i+ 7], 22, -45705983)
80 a = ff(a, b, c, d, x[i+ 8], 7 , 1770035416)
81 d = ff(d, a, b, c, x[i+ 9], 12, -1958414417)
82 c = ff(c, d, a, b, x[i+10], 17, -42063)
83 b = ff(b, c, d, a, x[i+11], 22, -1990404162)
84 a = ff(a, b, c, d, x[i+12], 7 , 1804603682)
85 d = ff(d, a, b, c, x[i+13], 12, -40341101)
86 c = ff(c, d, a, b, x[i+14], 17, -1502002290)
87 b = ff(b, c, d, a, x[i+15], 22, 1236535329)
89 a = gg(a, b, c, d, x[i+ 1], 5 , -165796510)
90 d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632)
91 c = gg(c, d, a, b, x[i+11], 14, 643717713)
92 b = gg(b, c, d, a, x[i+ 0], 20, -373897302)
93 a = gg(a, b, c, d, x[i+ 5], 5 , -701558691)
94 d = gg(d, a, b, c, x[i+10], 9 , 38016083)
95 c = gg(c, d, a, b, x[i+15], 14, -660478335)
96 b = gg(b, c, d, a, x[i+ 4], 20, -405537848)
97 a = gg(a, b, c, d, x[i+ 9], 5 , 568446438)
98 d = gg(d, a, b, c, x[i+14], 9 , -1019803690)
99 c = gg(c, d, a, b, x[i+ 3], 14, -187363961)
100 b = gg(b, c, d, a, x[i+ 8], 20, 1163531501)
101 a = gg(a, b, c, d, x[i+13], 5 , -1444681467)
102 d = gg(d, a, b, c, x[i+ 2], 9 , -51403784)
103 c = gg(c, d, a, b, x[i+ 7], 14, 1735328473)
104 b = gg(b, c, d, a, x[i+12], 20, -1926607734)
106 a = hh(a, b, c, d, x[i+ 5], 4 , -378558)
107 d = hh(d, a, b, c, x[i+ 8], 11, -2022574463)
108 c = hh(c, d, a, b, x[i+11], 16, 1839030562)
109 b = hh(b, c, d, a, x[i+14], 23, -35309556)
110 a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060)
111 d = hh(d, a, b, c, x[i+ 4], 11, 1272893353)
112 c = hh(c, d, a, b, x[i+ 7], 16, -155497632)
113 b = hh(b, c, d, a, x[i+10], 23, -1094730640)
114 a = hh(a, b, c, d, x[i+13], 4 , 681279174)
115 d = hh(d, a, b, c, x[i+ 0], 11, -358537222)
116 c = hh(c, d, a, b, x[i+ 3], 16, -722521979)
117 b = hh(b, c, d, a, x[i+ 6], 23, 76029189)
118 a = hh(a, b, c, d, x[i+ 9], 4 , -640364487)
119 d = hh(d, a, b, c, x[i+12], 11, -421815835)
120 c = hh(c, d, a, b, x[i+15], 16, 530742520)
121 b = hh(b, c, d, a, x[i+ 2], 23, -995338651)
123 a = ii(a, b, c, d, x[i+ 0], 6 , -198630844)
124 d = ii(d, a, b, c, x[i+ 7], 10, 1126891415)
125 c = ii(c, d, a, b, x[i+14], 15, -1416354905)
126 b = ii(b, c, d, a, x[i+ 5], 21, -57434055)
127 a = ii(a, b, c, d, x[i+12], 6 , 1700485571)
128 d = ii(d, a, b, c, x[i+ 3], 10, -1894986606)
129 c = ii(c, d, a, b, x[i+10], 15, -1051523)
130 b = ii(b, c, d, a, x[i+ 1], 21, -2054922799)
131 a = ii(a, b, c, d, x[i+ 8], 6 , 1873313359)
132 d = ii(d, a, b, c, x[i+15], 10, -30611744)
133 c = ii(c, d, a, b, x[i+ 6], 15, -1560198380)
134 b = ii(b, c, d, a, x[i+13], 21, 1309151649)
135 a = ii(a, b, c, d, x[i+ 4], 6 , -145523070)
136 d = ii(d, a, b, c, x[i+11], 10, -1120210379)
137 c = ii(c, d, a, b, x[i+ 2], 15, 718787259)
138 b = ii(b, c, d, a, x[i+ 9], 21, -343485551)
140 a = safe_add(a, olda)
141 b = safe_add(b, oldb)
142 c = safe_add(c, oldc)
143 d = safe_add(d, oldd)
149 * Convert an array of little-endian words to a hex string.
151 function binl2hex(binarray)
153 var hex_tab = "0123456789abcdef"
155 for(var i = 0; i < binarray.length * 4; i++)
157 str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
158 hex_tab.charAt((binarray[i>>2] >> ((i%4)*8)) & 0xF)
164 * Convert an array of little-endian words to a base64 encoded string.
166 function binl2b64(binarray)
168 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
170 for(var i = 0; i < binarray.length * 32; i += 6)
172 str += tab.charAt(((binarray[i>>5] << (i%32)) & 0x3F) |
173 ((binarray[i>>5+1] >> (32-i%32)) & 0x3F))
179 * Convert an 8-bit character string to a sequence of 16-word blocks, stored
180 * as an array, and append appropriate padding for MD4/5 calculation.
181 * If any of the characters are >255, the high byte is silently ignored.
183 function str2binl(str)
185 var nblk = ((str.length + 8) >> 6) + 1 // number of 16-word blocks
186 var blks = new Array(nblk * 16)
187 for(var i = 0; i < nblk * 16; i++) blks[i] = 0
188 for(var i = 0; i < str.length; i++)
189 blks[i>>2] |= (str.charCodeAt(i) & 0xFF) << ((i%4) * 8)
190 blks[i>>2] |= 0x80 << ((i%4) * 8)
191 blks[nblk*16-2] = str.length * 8
196 * Convert a wide-character string to a sequence of 16-word blocks, stored as
197 * an array, and append appropriate padding for MD4/5 calculation.
199 function strw2binl(str)
201 var nblk = ((str.length + 4) >> 5) + 1 // number of 16-word blocks
202 var blks = new Array(nblk * 16)
203 for(var i = 0; i < nblk * 16; i++) blks[i] = 0
204 for(var i = 0; i < str.length; i++)
205 blks[i>>1] |= str.charCodeAt(i) << ((i%2) * 16)
206 blks[i>>1] |= 0x80 << ((i%2) * 16)
207 blks[nblk*16-2] = str.length * 16
214 function hexMD5 (str) { return binl2hex(coreMD5( str2binl(str))) }
215 function hexMD5w(str) { return binl2hex(coreMD5(strw2binl(str))) }
216 function b64MD5 (str) { return binl2b64(coreMD5( str2binl(str))) }
217 function b64MD5w(str) { return binl2b64(coreMD5(strw2binl(str))) }
218 /* Backward compatibility */
219 function calcMD5(str) { return binl2hex(coreMD5( str2binl(str))) }