MD5.js
4.97 KB
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
(function(){
var C = (typeof window === 'undefined') ? require('./Crypto').Crypto : window.Crypto;
// Shortcuts
var util = C.util,
charenc = C.charenc,
UTF8 = charenc.UTF8,
Binary = charenc.Binary;
// Public API
var MD5 = C.MD5 = function (message, options) {
var digestbytes = util.wordsToBytes(MD5._md5(message));
return options && options.asBytes ? digestbytes :
options && options.asString ? Binary.bytesToString(digestbytes) :
util.bytesToHex(digestbytes);
};
// The core
MD5._md5 = function (message) {
// Convert to byte array
if (message.constructor == String) message = UTF8.stringToBytes(message);
/* else, assume byte array already */
var m = util.bytesToWords(message),
l = message.length * 8,
a = 1732584193,
b = -271733879,
c = -1732584194,
d = 271733878;
// Swap endian
for (var i = 0; i < m.length; i++) {
m[i] = ((m[i] << 8) | (m[i] >>> 24)) & 0x00FF00FF |
((m[i] << 24) | (m[i] >>> 8)) & 0xFF00FF00;
}
// Padding
m[l >>> 5] |= 0x80 << (l % 32);
m[(((l + 64) >>> 9) << 4) + 14] = l;
// Method shortcuts
var FF = MD5._ff,
GG = MD5._gg,
HH = MD5._hh,
II = MD5._ii;
for (var i = 0; i < m.length; i += 16) {
var aa = a,
bb = b,
cc = c,
dd = d;
a = FF(a, b, c, d, m[i+ 0], 7, -680876936);
d = FF(d, a, b, c, m[i+ 1], 12, -389564586);
c = FF(c, d, a, b, m[i+ 2], 17, 606105819);
b = FF(b, c, d, a, m[i+ 3], 22, -1044525330);
a = FF(a, b, c, d, m[i+ 4], 7, -176418897);
d = FF(d, a, b, c, m[i+ 5], 12, 1200080426);
c = FF(c, d, a, b, m[i+ 6], 17, -1473231341);
b = FF(b, c, d, a, m[i+ 7], 22, -45705983);
a = FF(a, b, c, d, m[i+ 8], 7, 1770035416);
d = FF(d, a, b, c, m[i+ 9], 12, -1958414417);
c = FF(c, d, a, b, m[i+10], 17, -42063);
b = FF(b, c, d, a, m[i+11], 22, -1990404162);
a = FF(a, b, c, d, m[i+12], 7, 1804603682);
d = FF(d, a, b, c, m[i+13], 12, -40341101);
c = FF(c, d, a, b, m[i+14], 17, -1502002290);
b = FF(b, c, d, a, m[i+15], 22, 1236535329);
a = GG(a, b, c, d, m[i+ 1], 5, -165796510);
d = GG(d, a, b, c, m[i+ 6], 9, -1069501632);
c = GG(c, d, a, b, m[i+11], 14, 643717713);
b = GG(b, c, d, a, m[i+ 0], 20, -373897302);
a = GG(a, b, c, d, m[i+ 5], 5, -701558691);
d = GG(d, a, b, c, m[i+10], 9, 38016083);
c = GG(c, d, a, b, m[i+15], 14, -660478335);
b = GG(b, c, d, a, m[i+ 4], 20, -405537848);
a = GG(a, b, c, d, m[i+ 9], 5, 568446438);
d = GG(d, a, b, c, m[i+14], 9, -1019803690);
c = GG(c, d, a, b, m[i+ 3], 14, -187363961);
b = GG(b, c, d, a, m[i+ 8], 20, 1163531501);
a = GG(a, b, c, d, m[i+13], 5, -1444681467);
d = GG(d, a, b, c, m[i+ 2], 9, -51403784);
c = GG(c, d, a, b, m[i+ 7], 14, 1735328473);
b = GG(b, c, d, a, m[i+12], 20, -1926607734);
a = HH(a, b, c, d, m[i+ 5], 4, -378558);
d = HH(d, a, b, c, m[i+ 8], 11, -2022574463);
c = HH(c, d, a, b, m[i+11], 16, 1839030562);
b = HH(b, c, d, a, m[i+14], 23, -35309556);
a = HH(a, b, c, d, m[i+ 1], 4, -1530992060);
d = HH(d, a, b, c, m[i+ 4], 11, 1272893353);
c = HH(c, d, a, b, m[i+ 7], 16, -155497632);
b = HH(b, c, d, a, m[i+10], 23, -1094730640);
a = HH(a, b, c, d, m[i+13], 4, 681279174);
d = HH(d, a, b, c, m[i+ 0], 11, -358537222);
c = HH(c, d, a, b, m[i+ 3], 16, -722521979);
b = HH(b, c, d, a, m[i+ 6], 23, 76029189);
a = HH(a, b, c, d, m[i+ 9], 4, -640364487);
d = HH(d, a, b, c, m[i+12], 11, -421815835);
c = HH(c, d, a, b, m[i+15], 16, 530742520);
b = HH(b, c, d, a, m[i+ 2], 23, -995338651);
a = II(a, b, c, d, m[i+ 0], 6, -198630844);
d = II(d, a, b, c, m[i+ 7], 10, 1126891415);
c = II(c, d, a, b, m[i+14], 15, -1416354905);
b = II(b, c, d, a, m[i+ 5], 21, -57434055);
a = II(a, b, c, d, m[i+12], 6, 1700485571);
d = II(d, a, b, c, m[i+ 3], 10, -1894986606);
c = II(c, d, a, b, m[i+10], 15, -1051523);
b = II(b, c, d, a, m[i+ 1], 21, -2054922799);
a = II(a, b, c, d, m[i+ 8], 6, 1873313359);
d = II(d, a, b, c, m[i+15], 10, -30611744);
c = II(c, d, a, b, m[i+ 6], 15, -1560198380);
b = II(b, c, d, a, m[i+13], 21, 1309151649);
a = II(a, b, c, d, m[i+ 4], 6, -145523070);
d = II(d, a, b, c, m[i+11], 10, -1120210379);
c = II(c, d, a, b, m[i+ 2], 15, 718787259);
b = II(b, c, d, a, m[i+ 9], 21, -343485551);
a = (a + aa) >>> 0;
b = (b + bb) >>> 0;
c = (c + cc) >>> 0;
d = (d + dd) >>> 0;
}
return util.endian([a, b, c, d]);
};
// Auxiliary functions
MD5._ff = function (a, b, c, d, x, s, t) {
var n = a + (b & c | ~b & d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
MD5._gg = function (a, b, c, d, x, s, t) {
var n = a + (b & d | c & ~d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
MD5._hh = function (a, b, c, d, x, s, t) {
var n = a + (b ^ c ^ d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
MD5._ii = function (a, b, c, d, x, s, t) {
var n = a + (c ^ (b | ~d)) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
// Package private blocksize
MD5._blocksize = 16;
MD5._digestsize = 16;
})();