File indexing completed on 2024-04-28 15:28:38

0001 shouldBe("hexMD5('kde')", "'186cf28b76f2264e9fea8fcf91cb4f5d'");
0002 
0003 /*
0004  * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
0005  * Digest Algorithm, as defined in RFC 1321.
0006  * Version 1.1 Copyright (C) Paul Johnston 1999 - 2002.
0007  * Code also contributed by Greg Holt
0008  * See http://pajhome.org.uk/site/legal.html for details.
0009  */
0010 
0011 /*
0012  * Add integers, wrapping at 2^32. This uses 16-bit operations internally
0013  * to work around bugs in some JS interpreters.
0014  */
0015 function safe_add(x, y)
0016 {
0017   var lsw = (x & 0xFFFF) + (y & 0xFFFF)
0018   var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
0019   return (msw << 16) | (lsw & 0xFFFF)
0020 }
0021 
0022 /*
0023  * Bitwise rotate a 32-bit number to the left.
0024  */
0025 function rol(num, cnt)
0026 {
0027   return (num << cnt) | (num >>> (32 - cnt))
0028 }
0029 
0030 /*
0031  * These functions implement the four basic operations the algorithm uses.
0032  */
0033 function cmn(q, a, b, x, s, t)
0034 {
0035   return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
0036 }
0037 function ff(a, b, c, d, x, s, t)
0038 {
0039   return cmn((b & c) | ((~b) & d), a, b, x, s, t)
0040 }
0041 function gg(a, b, c, d, x, s, t)
0042 {
0043   return cmn((b & d) | (c & (~d)), a, b, x, s, t)
0044 }
0045 function hh(a, b, c, d, x, s, t)
0046 {
0047   return cmn(b ^ c ^ d, a, b, x, s, t)
0048 }
0049 function ii(a, b, c, d, x, s, t)
0050 {
0051   return cmn(c ^ (b | (~d)), a, b, x, s, t)
0052 }
0053 
0054 /*
0055  * Calculate the MD5 of an array of little-endian words, producing an array
0056  * of little-endian words.
0057  */
0058 function coreMD5(x)
0059 {
0060   var a =  1732584193
0061   var b = -271733879
0062   var c = -1732584194
0063   var d =  271733878
0064 
0065   for(i = 0; i < x.length; i += 16)
0066   {
0067     var olda = a
0068     var oldb = b
0069     var oldc = c
0070     var oldd = d
0071 
0072     a = ff(a, b, c, d, x[i+ 0], 7 , -680876936)
0073     d = ff(d, a, b, c, x[i+ 1], 12, -389564586)
0074     c = ff(c, d, a, b, x[i+ 2], 17,  606105819)
0075     b = ff(b, c, d, a, x[i+ 3], 22, -1044525330)
0076     a = ff(a, b, c, d, x[i+ 4], 7 , -176418897)
0077     d = ff(d, a, b, c, x[i+ 5], 12,  1200080426)
0078     c = ff(c, d, a, b, x[i+ 6], 17, -1473231341)
0079     b = ff(b, c, d, a, x[i+ 7], 22, -45705983)
0080     a = ff(a, b, c, d, x[i+ 8], 7 ,  1770035416)
0081     d = ff(d, a, b, c, x[i+ 9], 12, -1958414417)
0082     c = ff(c, d, a, b, x[i+10], 17, -42063)
0083     b = ff(b, c, d, a, x[i+11], 22, -1990404162)
0084     a = ff(a, b, c, d, x[i+12], 7 ,  1804603682)
0085     d = ff(d, a, b, c, x[i+13], 12, -40341101)
0086     c = ff(c, d, a, b, x[i+14], 17, -1502002290)
0087     b = ff(b, c, d, a, x[i+15], 22,  1236535329)
0088 
0089     a = gg(a, b, c, d, x[i+ 1], 5 , -165796510)
0090     d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632)
0091     c = gg(c, d, a, b, x[i+11], 14,  643717713)
0092     b = gg(b, c, d, a, x[i+ 0], 20, -373897302)
0093     a = gg(a, b, c, d, x[i+ 5], 5 , -701558691)
0094     d = gg(d, a, b, c, x[i+10], 9 ,  38016083)
0095     c = gg(c, d, a, b, x[i+15], 14, -660478335)
0096     b = gg(b, c, d, a, x[i+ 4], 20, -405537848)
0097     a = gg(a, b, c, d, x[i+ 9], 5 ,  568446438)
0098     d = gg(d, a, b, c, x[i+14], 9 , -1019803690)
0099     c = gg(c, d, a, b, x[i+ 3], 14, -187363961)
0100     b = gg(b, c, d, a, x[i+ 8], 20,  1163531501)
0101     a = gg(a, b, c, d, x[i+13], 5 , -1444681467)
0102     d = gg(d, a, b, c, x[i+ 2], 9 , -51403784)
0103     c = gg(c, d, a, b, x[i+ 7], 14,  1735328473)
0104     b = gg(b, c, d, a, x[i+12], 20, -1926607734)
0105 
0106     a = hh(a, b, c, d, x[i+ 5], 4 , -378558)
0107     d = hh(d, a, b, c, x[i+ 8], 11, -2022574463)
0108     c = hh(c, d, a, b, x[i+11], 16,  1839030562)
0109     b = hh(b, c, d, a, x[i+14], 23, -35309556)
0110     a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060)
0111     d = hh(d, a, b, c, x[i+ 4], 11,  1272893353)
0112     c = hh(c, d, a, b, x[i+ 7], 16, -155497632)
0113     b = hh(b, c, d, a, x[i+10], 23, -1094730640)
0114     a = hh(a, b, c, d, x[i+13], 4 ,  681279174)
0115     d = hh(d, a, b, c, x[i+ 0], 11, -358537222)
0116     c = hh(c, d, a, b, x[i+ 3], 16, -722521979)
0117     b = hh(b, c, d, a, x[i+ 6], 23,  76029189)
0118     a = hh(a, b, c, d, x[i+ 9], 4 , -640364487)
0119     d = hh(d, a, b, c, x[i+12], 11, -421815835)
0120     c = hh(c, d, a, b, x[i+15], 16,  530742520)
0121     b = hh(b, c, d, a, x[i+ 2], 23, -995338651)
0122 
0123     a = ii(a, b, c, d, x[i+ 0], 6 , -198630844)
0124     d = ii(d, a, b, c, x[i+ 7], 10,  1126891415)
0125     c = ii(c, d, a, b, x[i+14], 15, -1416354905)
0126     b = ii(b, c, d, a, x[i+ 5], 21, -57434055)
0127     a = ii(a, b, c, d, x[i+12], 6 ,  1700485571)
0128     d = ii(d, a, b, c, x[i+ 3], 10, -1894986606)
0129     c = ii(c, d, a, b, x[i+10], 15, -1051523)
0130     b = ii(b, c, d, a, x[i+ 1], 21, -2054922799)
0131     a = ii(a, b, c, d, x[i+ 8], 6 ,  1873313359)
0132     d = ii(d, a, b, c, x[i+15], 10, -30611744)
0133     c = ii(c, d, a, b, x[i+ 6], 15, -1560198380)
0134     b = ii(b, c, d, a, x[i+13], 21,  1309151649)
0135     a = ii(a, b, c, d, x[i+ 4], 6 , -145523070)
0136     d = ii(d, a, b, c, x[i+11], 10, -1120210379)
0137     c = ii(c, d, a, b, x[i+ 2], 15,  718787259)
0138     b = ii(b, c, d, a, x[i+ 9], 21, -343485551)
0139 
0140     a = safe_add(a, olda)
0141     b = safe_add(b, oldb)
0142     c = safe_add(c, oldc)
0143     d = safe_add(d, oldd)
0144   }
0145   return [a, b, c, d]
0146 }
0147 
0148 /*
0149  * Convert an array of little-endian words to a hex string.
0150  */
0151 function binl2hex(binarray)
0152 {
0153   var hex_tab = "0123456789abcdef"
0154   var str = ""
0155   for(var i = 0; i < binarray.length * 4; i++)
0156   {
0157     str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
0158            hex_tab.charAt((binarray[i>>2] >> ((i%4)*8)) & 0xF)
0159   }
0160   return str
0161 }
0162 
0163 /*
0164  * Convert an array of little-endian words to a base64 encoded string.
0165  */
0166 function binl2b64(binarray)
0167 {
0168   var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
0169   var str = ""
0170   for(var i = 0; i < binarray.length * 32; i += 6)
0171   {
0172     str += tab.charAt(((binarray[i>>5] << (i%32)) & 0x3F) |
0173                       ((binarray[i>>5+1] >> (32-i%32)) & 0x3F))
0174   }
0175   return str
0176 }
0177 
0178 /*
0179  * Convert an 8-bit character string to a sequence of 16-word blocks, stored
0180  * as an array, and append appropriate padding for MD4/5 calculation.
0181  * If any of the characters are >255, the high byte is silently ignored.
0182  */
0183 function str2binl(str)
0184 {
0185   var nblk = ((str.length + 8) >> 6) + 1 // number of 16-word blocks
0186   var blks = new Array(nblk * 16)
0187   for(var i = 0; i < nblk * 16; i++) blks[i] = 0
0188   for(var i = 0; i < str.length; i++)
0189     blks[i>>2] |= (str.charCodeAt(i) & 0xFF) << ((i%4) * 8)
0190   blks[i>>2] |= 0x80 << ((i%4) * 8)
0191   blks[nblk*16-2] = str.length * 8
0192   return blks
0193 }
0194 
0195 /*
0196  * Convert a wide-character string to a sequence of 16-word blocks, stored as
0197  * an array, and append appropriate padding for MD4/5 calculation.
0198  */
0199 function strw2binl(str)
0200 {
0201   var nblk = ((str.length + 4) >> 5) + 1 // number of 16-word blocks
0202   var blks = new Array(nblk * 16)
0203   for(var i = 0; i < nblk * 16; i++) blks[i] = 0
0204   for(var i = 0; i < str.length; i++)
0205     blks[i>>1] |= str.charCodeAt(i) << ((i%2) * 16)
0206   blks[i>>1] |= 0x80 << ((i%2) * 16)
0207   blks[nblk*16-2] = str.length * 16
0208   return blks
0209 }
0210 
0211 /*
0212  * External interface
0213  */
0214 function hexMD5 (str) { return binl2hex(coreMD5( str2binl(str))) }
0215 function hexMD5w(str) { return binl2hex(coreMD5(strw2binl(str))) }
0216 function b64MD5 (str) { return binl2b64(coreMD5( str2binl(str))) }
0217 function b64MD5w(str) { return binl2b64(coreMD5(strw2binl(str))) }
0218 /* Backward compatibility */
0219 function calcMD5(str) { return binl2hex(coreMD5( str2binl(str))) }
0220