AS2的MD5类代码代码,ActionScript代码库,德仔网

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【ActionScript】 AS2的MD5类代码
作者: / 发布于2011/1/3/ 2133
<div>/*MD5*/
var hexcase = 0;
var strsize = 8;

function md5(s) {
 return binl2hex(core_md5(str2binl(s), s.length*strsize));
}
function core_md5(x, len) {
 x[len >> 5] = (x[len >> 5]) | (128 << len%32);
 x[(((len+64) >>> 9) << 4)+14] = len;
 var a = 1732584193;

 var b = -271733879;
 var c = -1732584194;
 var d = 271733878;
 var i = 0;
 while (i<x.length) {
 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 = safe_add(a, olda);
 b = safe_add(b, oldb);
 c = safe_add(c, oldc);
 d = safe_add(d, oldd);
 i = i+16;
 }
 return Array(a, b, c, d);
}
function md5_cmn(q, a, b, x, s, t) {
 return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
}
function md5_ff(a, b, c, d, x, s, t) {
 return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t) {
 return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t) {
 return md5_cmn((b ^ c) ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t) {
 return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
function safe_add(x, y) {
 var lsw = (x & 65535)+(y & 65535);
 var msw = ((x >> 16)+(y >> 16))+(lsw >> 16);
 return (msw << 16) | (lsw & 65535);
}
function bit_rol(num, cnt) {
 return (num << cnt) | (num >>> (32-cnt));
}
function str2binl(str) {
 var bin = Array();
 var mask = (1 << strsize)-1;
 var i = 0;
 while (i<(str.length*strsize)) {
 bin[i >> 5] = (bin[i >> 5]) | ((str.charCodeAt(i/strsize) & mask) << i%32);
 i = i+strsize;
 }
return bin;
}
function binl2hex(binarray) {
 if (hexcase) {
 } else {
 }
 var hex_tab = "0123456789abcdef";
 var str = "";
 var i = 0;
 while (i<(binarray.length*4)) {
 str = str+(hex_tab.charAt(((binarray[i >> 2]) >> ((i%4*8)+4)) & 15)+hex_tab.charAt(((binarray[i >> 2]) >> (i%4*8)) & 15));
i++;
 }
 return str;
} 
</div>
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