jquery md5加密

jquery md5加密工具类

  1 /**
  2  * jQuery MD5 hash algorithm function
  3  * 
  4  *     <code>
  5  *         Calculate the md5 hash of a String 
  6  *         String $.md5 ( String str )
  7  *     </code>
  8  * 
  9  * Calculates the MD5 hash of str using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash. 
 10  * MD5 (Message-Digest algorithm 5) is a widely-used cryptographic hash function with a 128-bit hash value. MD5 has been employed in a wide variety of security applications, and is also commonly used to check the integrity of data. The generated hash is also non-reversable. Data cannot be retrieved from the message digest, the digest uniquely identifies the data.
 11  * MD5 was developed by Professor Ronald L. Rivest in 1994. Its 128 bit (16 byte) message digest makes it a faster implementation than SHA-1.
 12  * This script is used to process a variable length message into a fixed-length output of 128 bits using the MD5 algorithm. It is fully compatible with UTF-8 encoding. It is very useful when u want to transfer encrypted passwords over the internet. If you plan using UTF-8 encoding in your project don't forget to set the page encoding to UTF-8 (Content-Type meta tag). 
 13  * This function orginally get from the WebToolkit and rewrite for using as the jQuery plugin.
 14  * 
 15  * Example
 16  *     Code
 17  *         <code>
 18  *             $.md5("Marydon"); 
 19  *         </code>
 20  *     Result
 21  *         <code>
 22  *             "988218e7eefcd86d5d855a8947f37f43"
 23  *         </code>
 24  * 
 25  * @alias Muhammad Hussein Fattahizadeh < muhammad [AT] semnanweb [DOT] com >
 26  * @link http://www.semnanweb.com/jquery-plugin/md5.html
 27  * @see http://www.webtoolkit.info/
 28  * @license http://www.gnu.org/licenses/gpl.html [GNU General Public License]
 29  * @param {jQuery} {md5:function(string))
 30  * @return string
 31  */
 32 
 33 (function($){
 34     
 35     var rotateLeft = function(lValue, iShiftBits) {
 36         return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
 37     }
 38     
 39     var addUnsigned = function(lX, lY) {
 40         var lX4, lY4, lX8, lY8, lResult;
 41         lX8 = (lX & 0x80000000);
 42         lY8 = (lY & 0x80000000);
 43         lX4 = (lX & 0x40000000);
 44         lY4 = (lY & 0x40000000);
 45         lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
 46         if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
 47         if (lX4 | lY4) {
 48             if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
 49             else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
 50         } else {
 51             return (lResult ^ lX8 ^ lY8);
 52         }
 53     }
 54     
 55     var F = function(x, y, z) {
 56         return (x & y) | ((~ x) & z);
 57     }
 58     
 59     var G = function(x, y, z) {
 60         return (x & z) | (y & (~ z));
 61     }
 62     
 63     var H = function(x, y, z) {
 64         return (x ^ y ^ z);
 65     }
 66     
 67     var I = function(x, y, z) {
 68         return (y ^ (x | (~ z)));
 69     }
 70     
 71     var FF = function(a, b, c, d, x, s, ac) {
 72         a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
 73         return addUnsigned(rotateLeft(a, s), b);
 74     };
 75     
 76     var GG = function(a, b, c, d, x, s, ac) {
 77         a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
 78         return addUnsigned(rotateLeft(a, s), b);
 79     };
 80     
 81     var HH = function(a, b, c, d, x, s, ac) {
 82         a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
 83         return addUnsigned(rotateLeft(a, s), b);
 84     };
 85     
 86     var II = function(a, b, c, d, x, s, ac) {
 87         a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
 88         return addUnsigned(rotateLeft(a, s), b);
 89     };
 90     
 91     var convertToWordArray = function(string) {
 92         var lWordCount;
 93         var lMessageLength = string.length;
 94         var lNumberOfWordsTempOne = lMessageLength + 8;
 95         var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
 96         var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
 97         var lWordArray = Array(lNumberOfWords - 1);
 98         var lBytePosition = 0;
 99         var lByteCount = 0;
100         while (lByteCount < lMessageLength) {
101             lWordCount = (lByteCount - (lByteCount % 4)) / 4;
102             lBytePosition = (lByteCount % 4) * 8;
103             lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
104             lByteCount++;
105         }
106         lWordCount = (lByteCount - (lByteCount % 4)) / 4;
107         lBytePosition = (lByteCount % 4) * 8;
108         lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
109         lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
110         lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
111         return lWordArray;
112     };
113     
114     var wordToHex = function(lValue) {
115         var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
116         for (lCount = 0; lCount <= 3; lCount++) {
117             lByte = (lValue >>> (lCount * 8)) & 255;
118             WordToHexValueTemp = "0" + lByte.toString(16);
119             WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
120         }
121         return WordToHexValue;
122     };
123     
124     var uTF8Encode = function(string) {
125         string = string.replace(/\x0d\x0a/g, "\x0a");
126         var output = "";
127         for (var n = 0; n < string.length; n++) {
128             var c = string.charCodeAt(n);
129             if (c < 128) {
130                 output += String.fromCharCode(c);
131             } else if ((c > 127) && (c < 2048)) {
132                 output += String.fromCharCode((c >> 6) | 192);
133                 output += String.fromCharCode((c & 63) | 128);
134             } else {
135                 output += String.fromCharCode((c >> 12) | 224);
136                 output += String.fromCharCode(((c >> 6) & 63) | 128);
137                 output += String.fromCharCode((c & 63) | 128);
138             }
139         }
140         return output;
141     };
142     
143     $.extend({
144         md5: function(string) {
145             var x = Array();
146             var k, AA, BB, CC, DD, a, b, c, d;
147             var S11=7, S12=12, S13=17, S14=22;
148             var S21=5, S22=9 , S23=14, S24=20;
149             var S31=4, S32=11, S33=16, S34=23;
150             var S41=6, S42=10, S43=15, S44=21;
151             string = uTF8Encode(string);
152             x = convertToWordArray(string);
153             a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
154             for (k = 0; k < x.length; k += 16) {
155                 AA = a; BB = b; CC = c; DD = d;
156                 a = FF(a, b, c, d, x[k+0],  S11, 0xD76AA478);
157                 d = FF(d, a, b, c, x[k+1],  S12, 0xE8C7B756);
158                 c = FF(c, d, a, b, x[k+2],  S13, 0x242070DB);
159                 b = FF(b, c, d, a, x[k+3],  S14, 0xC1BDCEEE);
160                 a = FF(a, b, c, d, x[k+4],  S11, 0xF57C0FAF);
161                 d = FF(d, a, b, c, x[k+5],  S12, 0x4787C62A);
162                 c = FF(c, d, a, b, x[k+6],  S13, 0xA8304613);
163                 b = FF(b, c, d, a, x[k+7],  S14, 0xFD469501);
164                 a = FF(a, b, c, d, x[k+8],  S11, 0x698098D8);
165                 d = FF(d, a, b, c, x[k+9],  S12, 0x8B44F7AF);
166                 c = FF(c, d, a, b, x[k+10], S13, 0xFFFF5BB1);
167                 b = FF(b, c, d, a, x[k+11], S14, 0x895CD7BE);
168                 a = FF(a, b, c, d, x[k+12], S11, 0x6B901122);
169                 d = FF(d, a, b, c, x[k+13], S12, 0xFD987193);
170                 c = FF(c, d, a, b, x[k+14], S13, 0xA679438E);
171                 b = FF(b, c, d, a, x[k+15], S14, 0x49B40821);
172                 a = GG(a, b, c, d, x[k+1],  S21, 0xF61E2562);
173                 d = GG(d, a, b, c, x[k+6],  S22, 0xC040B340);
174                 c = GG(c, d, a, b, x[k+11], S23, 0x265E5A51);
175                 b = GG(b, c, d, a, x[k+0],  S24, 0xE9B6C7AA);
176                 a = GG(a, b, c, d, x[k+5],  S21, 0xD62F105D);
177                 d = GG(d, a, b, c, x[k+10], S22, 0x2441453);
178                 c = GG(c, d, a, b, x[k+15], S23, 0xD8A1E681);
179                 b = GG(b, c, d, a, x[k+4],  S24, 0xE7D3FBC8);
180                 a = GG(a, b, c, d, x[k+9],  S21, 0x21E1CDE6);
181                 d = GG(d, a, b, c, x[k+14], S22, 0xC33707D6);
182                 c = GG(c, d, a, b, x[k+3],  S23, 0xF4D50D87);
183                 b = GG(b, c, d, a, x[k+8],  S24, 0x455A14ED);
184                 a = GG(a, b, c, d, x[k+13], S21, 0xA9E3E905);
185                 d = GG(d, a, b, c, x[k+2],  S22, 0xFCEFA3F8);
186                 c = GG(c, d, a, b, x[k+7],  S23, 0x676F02D9);
187                 b = GG(b, c, d, a, x[k+12], S24, 0x8D2A4C8A);
188                 a = HH(a, b, c, d, x[k+5],  S31, 0xFFFA3942);
189                 d = HH(d, a, b, c, x[k+8],  S32, 0x8771F681);
190                 c = HH(c, d, a, b, x[k+11], S33, 0x6D9D6122);
191                 b = HH(b, c, d, a, x[k+14], S34, 0xFDE5380C);
192                 a = HH(a, b, c, d, x[k+1],  S31, 0xA4BEEA44);
193                 d = HH(d, a, b, c, x[k+4],  S32, 0x4BDECFA9);
194                 c = HH(c, d, a, b, x[k+7],  S33, 0xF6BB4B60);
195                 b = HH(b, c, d, a, x[k+10], S34, 0xBEBFBC70);
196                 a = HH(a, b, c, d, x[k+13], S31, 0x289B7EC6);
197                 d = HH(d, a, b, c, x[k+0],  S32, 0xEAA127FA);
198                 c = HH(c, d, a, b, x[k+3],  S33, 0xD4EF3085);
199                 b = HH(b, c, d, a, x[k+6],  S34, 0x4881D05);
200                 a = HH(a, b, c, d, x[k+9],  S31, 0xD9D4D039);
201                 d = HH(d, a, b, c, x[k+12], S32, 0xE6DB99E5);
202                 c = HH(c, d, a, b, x[k+15], S33, 0x1FA27CF8);
203                 b = HH(b, c, d, a, x[k+2],  S34, 0xC4AC5665);
204                 a = II(a, b, c, d, x[k+0],  S41, 0xF4292244);
205                 d = II(d, a, b, c, x[k+7],  S42, 0x432AFF97);
206                 c = II(c, d, a, b, x[k+14], S43, 0xAB9423A7);
207                 b = II(b, c, d, a, x[k+5],  S44, 0xFC93A039);
208                 a = II(a, b, c, d, x[k+12], S41, 0x655B59C3);
209                 d = II(d, a, b, c, x[k+3],  S42, 0x8F0CCC92);
210                 c = II(c, d, a, b, x[k+10], S43, 0xFFEFF47D);
211                 b = II(b, c, d, a, x[k+1],  S44, 0x85845DD1);
212                 a = II(a, b, c, d, x[k+8],  S41, 0x6FA87E4F);
213                 d = II(d, a, b, c, x[k+15], S42, 0xFE2CE6E0);
214                 c = II(c, d, a, b, x[k+6],  S43, 0xA3014314);
215                 b = II(b, c, d, a, x[k+13], S44, 0x4E0811A1);
216                 a = II(a, b, c, d, x[k+4],  S41, 0xF7537E82);
217                 d = II(d, a, b, c, x[k+11], S42, 0xBD3AF235);
218                 c = II(c, d, a, b, x[k+2],  S43, 0x2AD7D2BB);
219                 b = II(b, c, d, a, x[k+9],  S44, 0xEB86D391);
220                 a = addUnsigned(a, AA);
221                 b = addUnsigned(b, BB);
222                 c = addUnsigned(c, CC);
223                 d = addUnsigned(d, DD);
224             }
225             var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
226             return tempValue.toLowerCase();
227         }
228     });
229 })(jQuery);

 

posted @ 2018-06-12 09:58  Marydon  阅读(1169)  评论(0)  编辑  收藏  举报