javascript版 md5
1 var hexcase = 0; 2 var b64pad = ''; 3 var chrsz = 8; 4 5 function md5(string) { 6 return binl2hex(core_md5(str2binl(string), string.length * chrsz)); 7 } 8 function b64_md5(string) { 9 return binl2b64(core_md5(str2binl(string), string.length * chrsz)); 10 } 11 function hex_hmac_md5(key, data) { 12 return binl2hex(core_hmac_md5(key, data)); 13 } 14 function b64_hmac_md5(key, data) { 15 return binl2b64(core_hmac_md5(key, data)); 16 } 17 function calcMD5(string) { 18 return binl2hex(core_md5(str2binl(string), string.length * chrsz)); 19 } 20 function core_md5(x, len) { 21 x[len >> 5] |= 0x80 << ((len) % 32); 22 x[(((len + 64) >>> 9) << 4) + 14] = len; 23 var a = 1732584193; 24 var b = -271733879; 25 var c = -1732584194; 26 var d = 271733878; 27 for(var i = 0; i < x.length; i += 16) { 28 var olda = a; 29 var oldb = b; 30 var oldc = c; 31 var oldd = d; 32 a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); 33 d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); 34 c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); 35 b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); 36 a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); 37 d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); 38 c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); 39 b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); 40 a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); 41 d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); 42 c = md5_ff(c, d, a, b, x[i+10], 17, -42063); 43 b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); 44 a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); 45 d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); 46 c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); 47 b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); 48 a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); 49 d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); 50 c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); 51 b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); 52 a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); 53 d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); 54 c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); 55 b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); 56 a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); 57 d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); 58 c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); 59 b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); 60 a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); 61 d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); 62 c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); 63 b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); 64 a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); 65 d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); 66 c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); 67 b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); 68 a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); 69 d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); 70 c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); 71 b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); 72 a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); 73 d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); 74 c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); 75 b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); 76 a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); 77 d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); 78 c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); 79 b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); 80 a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); 81 d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); 82 c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); 83 b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); 84 a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); 85 d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); 86 c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); 87 b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); 88 a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); 89 d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); 90 c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); 91 b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); 92 a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); 93 d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); 94 c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); 95 b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); 96 a = safe_add(a, olda); 97 b = safe_add(b, oldb); 98 c = safe_add(c, oldc); 99 d = safe_add(d, oldd);100 }101 return Array(a, b, c, d);102 }103 function md5_cmn(q, a, b, x, s, t) {104 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);105 }106 function md5_ff(a, b, c, d, x, s, t) {107 return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);108 }109 function md5_gg(a, b, c, d, x, s, t) {110 return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);111 }112 function md5_hh(a, b, c, d, x, s, t) {113 return md5_cmn(b ^ c ^ d, a, b, x, s, t);114 }115 function md5_ii(a, b, c, d, x, s, t) {116 return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);117 }118 119 function core_hmac_md5(key, data) {120 var bkey = str2binl(key);121 if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);122 var ipad = Array(16), opad = Array(16);123 for(var i = 0; i < 16; i++) {124 ipad[i] = bkey[i] ^ 0x36363636;125 opad[i] = bkey[i] ^ 0x5C5C5C5C;126 }127 128 var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);129 return core_md5(opad.concat(hash), 512 + 128);130 }131 function safe_add(x, y) {132 var lsw = (x & 0xFFFF) + (y & 0xFFFF);133 var msw = (x >> 16) + (y >> 16) + (lsw >> 16);134 return (msw << 16) | (lsw & 0xFFFF);135 }136 function bit_rol(num, cnt) {137 return (num << cnt) | (num >>> (32 - cnt));138 }139 function str2binl(str) {140 var bin = Array();141 var mask = (1 << chrsz) - 1;142 for(var i = 0; i < str.length * chrsz; i += chrsz)143 bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);144 return bin;145 }146 function binl2hex(binarray) {147 var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";148 var str = '';149 for(var i = 0; i < binarray.length * 4; i++) {150 str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF);151 }152 return str;153 }154 function binl2b64(binarray) {155 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";156 var str = "";157 for(var i = 0; i < binarray.length * 4; i += 3) {158 var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);159 for(var j = 0; j < 4; j++) {160 if(i * 8 + j * 6 > binarray.length * 32) {161 str += b64pad;162 } else {163 str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);164 }165 }166 }167 return str;168 }169 function md5_enc() {170 document.login.password.value = md5(document.login.password.value);171 }TAG:
