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MD5 JavaCript调用法

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锁定老帖子 主题：MD5 JavaCript调用法
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作者 正文
  • szlinz
  • 等级: 初级会员
  • 性别:
  • 文章: 6
  • 积分: 60
  • 来自: 深圳
   发表时间：2007-05-26  

JS代码： 
<SCRIPT LANGUAGE="JavaScript">

<!--

var hexcase = 0;

var b64pad = "";

var chrsz = 8;

function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}

function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }

function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }

function calcMD5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}

function md5_vm_test()

{return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";}


function core_md5(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 = safe_add(a, olda);


b = safe_add(b, oldb);


c = safe_add(c, oldc);


d = safe_add(d, oldd);


}

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 core_hmac_md5(key, data)

{

var bkey = str2binl(key);


if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);


var ipad = Array(16), opad = Array(16);


for(var i = 0; i < 16; i++)


{

ipad[i] = bkey[i] ^ 0x36363636;

opad[i] = bkey[i] ^ 0x5C5C5C5C;

}

var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);


return core_md5(opad.concat(hash), 512 + 128);


}

function safe_add(x, y)

{

var lsw = (x & 0xFFFF) + (y & 0xFFFF);


var msw = (x >> 16) + (y >> 16) + (lsw >> 16);


return (msw << 16) | (lsw & 0xFFFF);

}

function bit_rol(num, cnt)

{

return (num << cnt) | (num >>> (32 - cnt));

}

function str2binl(str)

{

var bin = Array();

var mask = (1 << chrsz) - 1;

for(var i = 0; i < str.length * chrsz; i += chrsz)

bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);

return bin;

}

function binl2hex(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;

}

function binl2b64(binarray)

{

var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";


var str = "";


for(var i = 0; i < binarray.length * 4; i += 3)

{

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);


for(var j = 0; j < 4; j++)

{

if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;


else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);


}


}

return str;

}

function To_md5(s){

return binl2hex(core_md5(str2binl(s), s.length * chrsz));

}

//-->

</SCRIPT>


调用方法： 
<span id="ShowMd5"></span><BR><BR>

<input id="TestStr" value="iered.com">

<input type="button" value="ToMd5" onClick="ShowMd5.innerText=To_md5(TestStr.value)">
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