// [[User:Quarl/md5.js]] - md5 function
// SYNOPSIS: alert(md5.hexDigest("foo bar"))
// <nowiki><pre>
// From: MD5 hash calculator
// Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
// Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
// Distributed under the BSD License
// See http://pajhome.org.uk/crypt/md5 for more info.
// -----------------------------------------------------------------------------
var md5 = new Object();
md5.hexcase = 0;
md5.chrsz = 8;
md5.hexDigest = function(s) {
return md5.binl2hex(md5.digest(md5.str2binl(s), s.length * md5.chrsz));
}
hex_md5 = md5.hexDigest; // deprecated
md5.digest = function(x, len)
{
x[len >> 5] |= 0x80 << ((len) % 32);
x[(((len + 64) >>> 9) << 4) + 14] = len;
var a = 1732584193;
var b = -271733879;
var c = -1732584194;
var d = 271733878;
for(var i = 0; i < x.length; i += 16)
{
var olda = a;
var oldb = b;
var oldc = c;
var oldd = d;
a = md5._ff(a, b, c, d, x[i+ 0], 7 , -680876936); d = md5._ff(d, a, b, c, x[i+ 1], 12, -389564586); c = md5._ff(c, d, a, b, x[i+ 2], 17, 606105819); b = md5._ff(b, c, d, a, x[i+ 3], 22, -1044525330); a = md5._ff(a, b, c, d, x[i+ 4], 7 , -176418897); d = md5._ff(d, a, b, c, x[i+ 5], 12, 1200080426); c = md5._ff(c, d, a, b, x[i+ 6], 17, -1473231341); b = md5._ff(b, c, d, a, x[i+ 7], 22, -45705983); a = md5._ff(a, b, c, d, x[i+ 8], 7 , 1770035416); d = md5._ff(d, a, b, c, x[i+ 9], 12, -1958414417); c = md5._ff(c, d, a, b, x[i+10], 17, -42063); b = md5._ff(b, c, d, a, x[i+11], 22, -1990404162); a = md5._ff(a, b, c, d, x[i+12], 7 , 1804603682); d = md5._ff(d, a, b, c, x[i+13], 12, -40341101); c = md5._ff(c, d, a, b, x[i+14], 17, -1502002290); b = md5._ff(b, c, d, a, x[i+15], 22, 1236535329);
a = md5._gg(a, b, c, d, x[i+ 1], 5 , -165796510); d = md5._gg(d, a, b, c, x[i+ 6], 9 , -1069501632); c = md5._gg(c, d, a, b, x[i+11], 14, 643717713); b = md5._gg(b, c, d, a, x[i+ 0], 20, -373897302); a = md5._gg(a, b, c, d, x[i+ 5], 5 , -701558691); d = md5._gg(d, a, b, c, x[i+10], 9 , 38016083); c = md5._gg(c, d, a, b, x[i+15], 14, -660478335); b = md5._gg(b, c, d, a, x[i+ 4], 20, -405537848); a = md5._gg(a, b, c, d, x[i+ 9], 5 , 568446438); d = md5._gg(d, a, b, c, x[i+14], 9 , -1019803690); c = md5._gg(c, d, a, b, x[i+ 3], 14, -187363961); b = md5._gg(b, c, d, a, x[i+ 8], 20, 1163531501); a = md5._gg(a, b, c, d, x[i+13], 5 , -1444681467); d = md5._gg(d, a, b, c, x[i+ 2], 9 , -51403784); c = md5._gg(c, d, a, b, x[i+ 7], 14, 1735328473); b = md5._gg(b, c, d, a, x[i+12], 20, -1926607734);
a = md5._hh(a, b, c, d, x[i+ 5], 4 , -378558); d = md5._hh(d, a, b, c, x[i+ 8], 11, -2022574463); c = md5._hh(c, d, a, b, x[i+11], 16, 1839030562); b = md5._hh(b, c, d, a, x[i+14], 23, -35309556); a = md5._hh(a, b, c, d, x[i+ 1], 4 , -1530992060); d = md5._hh(d, a, b, c, x[i+ 4], 11, 1272893353); c = md5._hh(c, d, a, b, x[i+ 7], 16, -155497632); b = md5._hh(b, c, d, a, x[i+10], 23, -1094730640); a = md5._hh(a, b, c, d, x[i+13], 4 , 681279174); d = md5._hh(d, a, b, c, x[i+ 0], 11, -358537222); c = md5._hh(c, d, a, b, x[i+ 3], 16, -722521979); b = md5._hh(b, c, d, a, x[i+ 6], 23, 76029189); a = md5._hh(a, b, c, d, x[i+ 9], 4 , -640364487); d = md5._hh(d, a, b, c, x[i+12], 11, -421815835); c = md5._hh(c, d, a, b, x[i+15], 16, 530742520); b = md5._hh(b, c, d, a, x[i+ 2], 23, -995338651);
a = md5._ii(a, b, c, d, x[i+ 0], 6 , -198630844); d = md5._ii(d, a, b, c, x[i+ 7], 10, 1126891415); c = md5._ii(c, d, a, b, x[i+14], 15, -1416354905); b = md5._ii(b, c, d, a, x[i+ 5], 21, -57434055); a = md5._ii(a, b, c, d, x[i+12], 6 , 1700485571); d = md5._ii(d, a, b, c, x[i+ 3], 10, -1894986606); c = md5._ii(c, d, a, b, x[i+10], 15, -1051523); b = md5._ii(b, c, d, a, x[i+ 1], 21, -2054922799); a = md5._ii(a, b, c, d, x[i+ 8], 6 , 1873313359); d = md5._ii(d, a, b, c, x[i+15], 10, -30611744); c = md5._ii(c, d, a, b, x[i+ 6], 15, -1560198380); b = md5._ii(b, c, d, a, x[i+13], 21, 1309151649); a = md5._ii(a, b, c, d, x[i+ 4], 6 , -145523070); d = md5._ii(d, a, b, c, x[i+11], 10, -1120210379); c = md5._ii(c, d, a, b, x[i+ 2], 15, 718787259); b = md5._ii(b, c, d, a, x[i+ 9], 21, -343485551);
a = md5._safeAdd(a, olda);
b = md5._safeAdd(b, oldb);
c = md5._safeAdd(c, oldc);
d = md5._safeAdd(d, oldd);
}
return Array(a, b, c, d);
}
md5._cmn = function(q, a, b, x, s, t) { return md5._safeAdd(md5._bitRol(md5._safeAdd(md5._safeAdd(a, q), md5._safeAdd(x, t)), s),b); }
md5._ff = function(a, b, c, d, x, s, t) { return md5._cmn((b & c) | ((~b) & d), a, b, x, s, t); }
md5._gg = function(a, b, c, d, x, s, t) { return md5._cmn((b & d) | (c & (~d)), a, b, x, s, t); }
md5._hh = function(a, b, c, d, x, s, t) { return md5._cmn(b ^ c ^ d, a, b, x, s, t); }
md5._ii = function(a, b, c, d, x, s, t) { return md5._cmn(c ^ (b | (~d)), a, b, x, s, t); }
md5._safeAdd = function(x, y)
{
var lsw = (x & 0xFFFF) + (y & 0xFFFF);
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xFFFF);
}
md5._bitRol = function(num, cnt)
{
return (num << cnt) | (num >>> (32 - cnt));
}
md5.str2binl = function(str)
{
var bin = Array();
var mask = (1 << md5.chrsz) - 1;
for(var i = 0; i < str.length * md5.chrsz; i += md5.chrsz)
bin[i>>5] |= (str.charCodeAt(i / md5.chrsz) & mask) << (i%32);
return bin;
}
md5.binl2hex = function(binarray)
{
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
var str = "";
for(var i = 0; i < binarray.length * 4; i++)
{
str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF);
}
return str;
}
// </nowiki></pre>
