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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
| var rotateLeft = function(lValue, iShiftBits) {
| return(lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
| }
|
| var addUnsigned = function(lX, lY) {
| var lX4, lY4, lX8, lY8, lResult;
| lX8 = (lX & 0x80000000);
| lY8 = (lY & 0x80000000);
| lX4 = (lX & 0x40000000);
| lY4 = (lY & 0x40000000);
| lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
| if(lX4 & lY4) return(lResult ^ 0x80000000 ^ lX8 ^ lY8);
| if(lX4 | lY4) {
| if(lResult & 0x40000000) return(lResult ^ 0xC0000000 ^ lX8 ^ lY8);
| else return(lResult ^ 0x40000000 ^ lX8 ^ lY8);
| } else {
| return(lResult ^ lX8 ^ lY8);
| }
| }
|
| var F = function(x, y, z) {
| return(x & y) | ((~x) & z);
| }
|
| var G = function(x, y, z) {
| return(x & z) | (y & (~z));
| }
|
| var H = function(x, y, z) {
| return(x ^ y ^ z);
| }
|
| var I = function(x, y, z) {
| return(y ^ (x | (~z)));
| }
|
| var FF = function(a, b, c, d, x, s, ac) {
| a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
| return addUnsigned(rotateLeft(a, s), b);
| };
|
| var GG = function(a, b, c, d, x, s, ac) {
| a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
| return addUnsigned(rotateLeft(a, s), b);
| };
|
| var HH = function(a, b, c, d, x, s, ac) {
| a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
| return addUnsigned(rotateLeft(a, s), b);
| };
|
| var II = function(a, b, c, d, x, s, ac) {
| a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
| return addUnsigned(rotateLeft(a, s), b);
| };
|
| var convertToWordArray = function(string) {
| var lWordCount;
| var lMessageLength = string.length;
| var lNumberOfWordsTempOne = lMessageLength + 8;
| var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
| var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
| var lWordArray = Array(lNumberOfWords - 1);
| var lBytePosition = 0;
| var lByteCount = 0;
| while(lByteCount < lMessageLength) {
| lWordCount = (lByteCount - (lByteCount % 4)) / 4;
| lBytePosition = (lByteCount % 4) * 8;
| lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
| lByteCount++;
| }
| lWordCount = (lByteCount - (lByteCount % 4)) / 4;
| lBytePosition = (lByteCount % 4) * 8;
| lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
| lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
| lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
| return lWordArray;
| };
|
| var wordToHex = function(lValue) {
| var WordToHexValue = "",
| WordToHexValueTemp = "",
| lByte, lCount;
| for(lCount = 0; lCount <= 3; lCount++) {
| lByte = (lValue >>> (lCount * 8)) & 255;
| WordToHexValueTemp = "0" + lByte.toString(16);
| WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
| }
| return WordToHexValue;
| };
|
| var uTF8Encode = function(string) {
| string = string.replace(/\x0d\x0a/g, "\x0a");
| var output = "";
| for(var n = 0; n < string.length; n++) {
| var c = string.charCodeAt(n);
| if(c < 128) {
| output += String.fromCharCode(c);
| } else if((c > 127) && (c < 2048)) {
| output += String.fromCharCode((c >> 6) | 192);
| output += String.fromCharCode((c & 63) | 128);
| } else {
| output += String.fromCharCode((c >> 12) | 224);
| output += String.fromCharCode(((c >> 6) & 63) | 128);
| output += String.fromCharCode((c & 63) | 128);
| }
| }
| return output;
| };
|
| function md5(string) {
| var x = Array();
| var k, AA, BB, CC, DD, a, b, c, d;
| var S11 = 7,
| S12 = 12,
| S13 = 17,
| S14 = 22;
| var S21 = 5,
| S22 = 9,
| S23 = 14,
| S24 = 20;
| var S31 = 4,
| S32 = 11,
| S33 = 16,
| S34 = 23;
| var S41 = 6,
| S42 = 10,
| S43 = 15,
| S44 = 21;
| string = uTF8Encode(string);
| x = convertToWordArray(string);
| a = 0x67452301;
| b = 0xEFCDAB89;
| c = 0x98BADCFE;
| d = 0x10325476;
| for(k = 0; k < x.length; k += 16) {
| AA = a;
| BB = b;
| CC = c;
| DD = d;
| a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
| d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
| c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
| b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
| a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
| d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
| c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
| b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
| a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
| d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
| c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
| b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
| a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
| d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
| c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
| b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
| a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
| d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
| c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
| b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
| a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
| d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
| c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
| b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
| a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
| d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
| c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
| b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
| a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
| d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
| c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
| b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
| a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
| d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
| c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
| b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
| a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
| d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
| c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
| b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
| a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
| d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
| c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
| b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
| a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
| d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
| c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
| b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
| a = II(a, b, c, d, x[k + 0], S41, 0xF4292244);
| d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
| c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
| b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
| a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
| d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
| c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
| b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
| a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
| d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
| c = II(c, d, a, b, x[k + 6], S43, 0xA3014314);
| b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
| a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
| d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
| c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
| b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
| a = addUnsigned(a, AA);
| b = addUnsigned(b, BB);
| c = addUnsigned(c, CC);
| d = addUnsigned(d, DD);
| }
| var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
| return tempValue.toLowerCase();
| }
|
| module.exports = {
| hex_md5: md5,
| }
|
|
