JavaScript简单的MD5加密库jQuery.md5.js，简单用法如下：
//Create (hex-encoded) MD5 hash of a given string value: var md5 = $.md5(‘value‘); //Create (hex-encoded) HMAC-MD5 hash of a given string value and key: var md5 = $.md5(‘value‘, ‘key‘); //Create raw MD5 hash of a given string value: var md5 = $.md5(‘value‘, null, true); //Create raw HMAC-MD5 hash of a given string value and key: var md5 = $.md5(‘value‘, ‘key‘, true);
源码查看地址 https://github.com/placemarker/jQuery-MD5
1 /*
2 * jQuery MD5 Plugin 1.2.1
3 * https://github.com/blueimp/jQuery-MD5
4 *
5 * Copyright 2010, Sebastian Tschan
6 * https://blueimp.net
7 *
8 * Licensed under the MIT license:
9 * http://creativecommons.org/licenses/MIT/
10 *
11 * Based on
12 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
13 * Digest Algorithm, as defined in RFC 1321.
14 * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
15 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
16 * Distributed under the BSD License
17 * See http://pajhome.org.uk/crypt/md5 for more info.
18 */
19
20 /*jslint bitwise: true */
21 /*global unescape, jQuery */
22
23 (function ($) {
24 ‘use strict‘;
25
26 /*
27 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
28 * to work around bugs in some JS interpreters.
29 */
30 function safe_add(x, y) {
31 var lsw = (x & 0xFFFF) + (y & 0xFFFF),
32 msw = (x >> 16) + (y >> 16) + (lsw >> 16);
33 return (msw << 16) | (lsw & 0xFFFF);
34 }
35
36 /*
37 * Bitwise rotate a 32-bit number to the left.
38 */
39 function bit_rol(num, cnt) {
40 return (num << cnt) | (num >>> (32 - cnt));
41 }
42
43 /*
44 * These functions implement the four basic operations the algorithm uses.
45 */
46 function md5_cmn(q, a, b, x, s, t) {
47 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
48 }
49 function md5_ff(a, b, c, d, x, s, t) {
50 return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
51 }
52 function md5_gg(a, b, c, d, x, s, t) {
53 return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
54 }
55 function md5_hh(a, b, c, d, x, s, t) {
56 return md5_cmn(b ^ c ^ d, a, b, x, s, t);
57 }
58 function md5_ii(a, b, c, d, x, s, t) {
59 return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
60 }
61
62 /*
63 * Calculate the MD5 of an array of little-endian words, and a bit length.
64 */
65 function binl_md5(x, len) {
66 /* append padding */
67 x[len >> 5] |= 0x80 << ((len) % 32);
68 x[(((len + 64) >>> 9) << 4) + 14] = len;
69
70 var i, olda, oldb, oldc, oldd,
71 a = 1732584193,
72 b = -271733879,
73 c = -1732584194,
74 d = 271733878;
75
76 for (i = 0; i < x.length; i += 16) {
77 olda = a;
78 oldb = b;
79 oldc = c;
80 oldd = d;
81
82 a = md5_ff(a, b, c, d, x[i], 7, -680876936);
83 d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
84 c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
85 b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
86 a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
87 d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
88 c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
89 b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
90 a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
91 d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
92 c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
93 b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
94 a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
95 d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
96 c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
97 b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);
98
99 a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
100 d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
101 c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
102 b = md5_gg(b, c, d, a, x[i], 20, -373897302);
103 a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
104 d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
105 c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
106 b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
107 a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
108 d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
109 c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
110 b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
111 a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
112 d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
113 c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
114 b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);
115
116 a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
117 d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
118 c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
119 b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
120 a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
121 d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
122 c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
123 b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
124 a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
125 d = md5_hh(d, a, b, c, x[i], 11, -358537222);
126 c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
127 b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
128 a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
129 d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
130 c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
131 b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);
132
133 a = md5_ii(a, b, c, d, x[i], 6, -198630844);
134 d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
135 c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
136 b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
137 a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
138 d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
139 c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
140 b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
141 a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
142 d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
143 c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
144 b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
145 a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
146 d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
147 c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
148 b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);
149
150 a = safe_add(a, olda);
151 b = safe_add(b, oldb);
152 c = safe_add(c, oldc);
153 d = safe_add(d, oldd);
154 }
155 return [a, b, c, d];
156 }
157
158 /*
159 * Convert an array of little-endian words to a string
160 */
161 function binl2rstr(input) {
162 var i,
163 output = ‘‘;
164 for (i = 0; i < input.length * 32; i += 8) {
165 output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xFF);
166 }
167 return output;
168 }
169
170 /*
171 * Convert a raw string to an array of little-endian words
172 * Characters >255 have their high-byte silently ignored.
173 */
174 function rstr2binl(input) {
175 var i,
176 output = [];
177 output[(input.length >> 2) - 1] = undefined;
178 for (i = 0; i < output.length; i += 1) {
179 output[i] = 0;
180 }
181 for (i = 0; i < input.length * 8; i += 8) {
182 output[i >> 5] |= (input.charCodeAt(i / 8) & 0xFF) << (i % 32);
183 }
184 return output;
185 }
186
187 /*
188 * Calculate the MD5 of a raw string
189 */
190 function rstr_md5(s) {
191 return binl2rstr(binl_md5(rstr2binl(s), s.length * 8));
192 }
193
194 /*
195 * Calculate the HMAC-MD5, of a key and some data (raw strings)
196 */
197 function rstr_hmac_md5(key, data) {
198 var i,
199 bkey = rstr2binl(key),
200 ipad = [],
201 opad = [],
202 hash;
203 ipad[15] = opad[15] = undefined;
204 if (bkey.length > 16) {
205 bkey = binl_md5(bkey, key.length * 8);
206 }
207 for (i = 0; i < 16; i += 1) {
208 ipad[i] = bkey[i] ^ 0x36363636;
209 opad[i] = bkey[i] ^ 0x5C5C5C5C;
210 }
211 hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
212 return binl2rstr(binl_md5(opad.concat(hash), 512 + 128));
213 }
214
215 /*
216 * Convert a raw string to a hex string
217 */
218 function rstr2hex(input) {
219 var hex_tab = ‘0123456789abcdef‘,
220 output = ‘‘,
221 x,
222 i;
223 for (i = 0; i < input.length; i += 1) {
224 x = input.charCodeAt(i);
225 output += hex_tab.charAt((x >>> 4) & 0x0F) +
226 hex_tab.charAt(x & 0x0F);
227 }
228 return output;
229 }
230
231 /*
232 * Encode a string as utf-8
233 */
234 function str2rstr_utf8(input) {
235 return unescape(encodeURIComponent(input));
236 }
237
238 /*
239 * Take string arguments and return either raw or hex encoded strings
240 */
241 function raw_md5(s) {
242 return rstr_md5(str2rstr_utf8(s));
243 }
244 function hex_md5(s) {
245 return rstr2hex(raw_md5(s));
246 }
247 function raw_hmac_md5(k, d) {
248 return rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d));
249 }
250 function hex_hmac_md5(k, d) {
251 return rstr2hex(raw_hmac_md5(k, d));
252 }
253
254 $.md5 = function (string, key, raw) {
255 if (!key) {
256 if (!raw) {
257 return hex_md5(string);
258 } else {
259 return raw_md5(string);
260 }
261 }
262 if (!raw) {
263 return hex_hmac_md5(key, string);
264 } else {
265 return raw_hmac_md5(key, string);
266 }
267 };
268
269 }(typeof jQuery === ‘function‘ ? jQuery : this));
jQuery.md5.js
这里也附上源码，以方便
时间： 2024-10-16 21:08:33