浏览
| 提交新的代码片段
| 创建代码包
MD5 & HMAC-MD5
|
类型:
Function |
类别:
HTML Manipulation
|
许可证:
Other |
语言:
JavaScript
|
描述:
基于javascript的MD5和HMAC-MD5算法
|
该代码片段的版本系列:
| 片段ID |
下载版本 |
提交时间 |
提交人 |
删除 |
| 4851 | v3 | 2004-09-20 15:28 | dsonet |  |
Changes since last version:
对之实现了完全的封装 |
| 4850 | 2.1 | 2004-08-30 09:05 | foy | |
点击"下载版本"来下载该代码片段.
最新版本的代码片段: v3
//modified by DSON [email protected]
function MD5(sText){
MD5.charSize=8;
MD5.lCase=true;
this.text=sText||null;
var text=this.text;
var b64pad = "";
for(var i=0;i<arguments.length;i++){
var argcsValue=arguments[i];
var argcsType=typeof(argcsValue);
switch(argcsType){
case "string":
text=this.text=argcsValue;
break;
case "number":
if(argcsValue!=8)MD5.charSize=this.setCharType(argcsValue);
break;
case "boolean":
MD5.lCase=argcsValue;
break;
default:
continue;
}
}
this.hashHex=hashHex;
this.hashBase64=hashBase64;
this.hashString=hashString;
this.hmacHex=hmacHex;
this.hmacBase64=hmacBase64;
this.hmacString=hmacString;
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 = ff(a, b, c, d, x[i+ 0], 7 , -680876936);
d = ff(d, a, b, c, x[i+ 1], 12, -389564586);
c = ff(c, d, a, b, x[i+ 2], 17, 606105819);
b = ff(b, c, d, a, x[i+ 3], 22, -1044525330);
a = ff(a, b, c, d, x[i+ 4], 7 , -176418897);
d = ff(d, a, b, c, x[i+ 5], 12, 1200080426);
c = ff(c, d, a, b, x[i+ 6], 17, -1473231341);
b = ff(b, c, d, a, x[i+ 7], 22, -45705983);
a = ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
d = ff(d, a, b, c, x[i+ 9], 12, -1958414417);
c = ff(c, d, a, b, x[i+10], 17, -42063);
b = ff(b, c, d, a, x[i+11], 22, -1990404162);
a = ff(a, b, c, d, x[i+12], 7 , 1804603682);
d = ff(d, a, b, c, x[i+13], 12, -40341101);
c = ff(c, d, a, b, x[i+14], 17, -1502002290);
b = ff(b, c, d, a, x[i+15], 22, 1236535329);
a = gg(a, b, c, d, x[i+ 1], 5 , -165796510);
d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
c = gg(c, d, a, b, x[i+11], 14, 643717713);
b = gg(b, c, d, a, x[i+ 0], 20, -373897302);
a = gg(a, b, c, d, x[i+ 5], 5 , -701558691);
d = gg(d, a, b, c, x[i+10], 9 , 38016083);
c = gg(c, d, a, b, x[i+15], 14, -660478335);
b = gg(b, c, d, a, x[i+ 4], 20, -405537848);
a = gg(a, b, c, d, x[i+ 9], 5 , 568446438);
d = gg(d, a, b, c, x[i+14], 9 , -1019803690);
c = gg(c, d, a, b, x[i+ 3], 14, -187363961);
b = gg(b, c, d, a, x[i+ 8], 20, 1163531501);
a = gg(a, b, c, d, x[i+13], 5 , -1444681467);
d = gg(d, a, b, c, x[i+ 2], 9 , -51403784);
c = gg(c, d, a, b, x[i+ 7], 14, 1735328473);
b = gg(b, c, d, a, x[i+12], 20, -1926607734);
a = hh(a, b, c, d, x[i+ 5], 4 , -378558);
d = hh(d, a, b, c, x[i+ 8], 11, -2022574463);
c = hh(c, d, a, b, x[i+11], 16, 1839030562);
b = hh(b, c, d, a, x[i+14], 23, -35309556);
a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
d = hh(d, a, b, c, x[i+ 4], 11, 1272893353);
c = hh(c, d, a, b, x[i+ 7], 16, -155497632);
b = hh(b, c, d, a, x[i+10], 23, -1094730640);
a = hh(a, b, c, d, x[i+13], 4 , 681279174);
d = hh(d, a, b, c, x[i+ 0], 11, -358537222);
c = hh(c, d, a, b, x[i+ 3], 16, -722521979);
b = hh(b, c, d, a, x[i+ 6], 23, 76029189);
a = hh(a, b, c, d, x[i+ 9], 4 , -640364487);
d = hh(d, a, b, c, x[i+12], 11, -421815835);
c = hh(c, d, a, b, x[i+15], 16, 530742520);
b = hh(b, c, d, a, x[i+ 2], 23, -995338651);
a = ii(a, b, c, d, x[i+ 0], 6 , -198630844);
d = ii(d, a, b, c, x[i+ 7], 10, 1126891415);
c = ii(c, d, a, b, x[i+14], 15, -1416354905);
b = ii(b, c, d, a, x[i+ 5], 21, -57434055);
a = ii(a, b, c, d, x[i+12], 6 , 1700485571);
d = ii(d, a, b, c, x[i+ 3], 10, -1894986606);
c = ii(c, d, a, b, x[i+10], 15, -1051523);
b = ii(b, c, d, a, x[i+ 1], 21, -2054922799);
a = ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
d = ii(d, a, b, c, x[i+15], 10, -30611744);
c = ii(c, d, a, b, x[i+ 6], 15, -1560198380);
b = ii(b, c, d, a, x[i+13], 21, 1309151649);
a = ii(a, b, c, d, x[i+ 4], 6 , -145523070);
d = ii(d, a, b, c, x[i+11], 10, -1120210379);
c = ii(c, d, a, b, x[i+ 2], 15, 718787259);
b = 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 core_hmac_md5(key, data){
var bkey = str2binl(key);
if(bkey.length > 16)
bkey = core_md5(bkey, key.length * MD5.charSize);
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 * MD5.charSize);
return core_md5(opad.concat(hash), 512 + 128);
}
function 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 ff(a, b, c, d, x, s, t){
return cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function gg(a, b, c, d, x, s, t){
return cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function hh(a, b, c, d, x, s, t){
return cmn(b ^ c ^ d, a, b, x, s, t);
}
function ii(a, b, c, d, x, s, t){
return cmn(c ^ (b | (~d)), a, b, x, s, t);
}
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 << MD5.charSize) - 1;
for(var i = 0; i < str.length * MD5.charSize; i += MD5.charSize)
bin[i>>5] |= (str.charCodeAt(i / MD5.charSize) & mask) << (i%32);
return bin;
}
function binl2str(bin){
var str = "";
var mask = (1 << MD5.charSize) - 1;
for(var i = 0; i < bin.length * 32; i += MD5.charSize)
str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
return str;
}
function binl2hex(binarray){
var hex_tab =( MD5.lCase ? "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 hashHex(text){
if(!text&&!(text=this.text))return null;
return binl2hex(core_md5(str2binl(text), text.length * MD5.charSize));
}
function hashBase64(text){
if(!text&&!(text=this.text))return null;
return binl2b64(core_md5(str2binl(text), text.length * MD5.charSize));
}
function hashString(text){
if(!text&&!(text=this.text))return null;
return binl2str(core_md5(str2binl(text), text.length * MD5.charSize));
}
function hmacHex(key,data){
if(!key||!data)return null;
return binl2hex(core_hmac_md5(key, data));
}
function hmacBase64(key, data){
if(!key||!data)return null;
return binl2b64(core_hmac_md5(key, data));
}
function hmacString(key, data){
if(!key||!data)return null;
return binl2str(core_hmac_md5(key, data));
}
}
//return hashHex as the default value
MD5.prototype.toString=function(){
if(this.text!=null){
return this.hashHex(this.text);
}
return null;
}
MD5.prototype.setCharType=function(sType){
var sType=String((sType||"ASCII")).toLowerCase();
if(sType.match(/uni|16/)){
return MD5.charSize=16;
}
return MD5.charSize=8;
}
MD5.prototype.getCharType=function(){
return MD5.charSize==8 ? "ASCII":"Unicode";
}
MD5.prototype.setLcase=function(bType){
MD5.lCase=Boolean(bType);
}
如果您修改了一个代码片段并且觉得很应该让别人共享,您可以把这作为这个代码片段的最新版本提交上来.
