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版本2代码如下: <script language="javascript"><br /> <!--<br /> function ByteMD5(arr,Type)//array of byte : arr[i] => [0,256)<br /> {<br /> return binl2hex(coreMD5( arr2binl(arr)))<br /> function safe_add(x, y)<br /> {<br /> var lsw = (x & 0xFFFF) + (y & 0xFFFF)<br /> var msw = (x >> 16) + (y >> 16) + (lsw >> 16)<br /> return (msw << 16) | (lsw & 0xFFFF)<br /> }<br /> function rol(num, cnt)<br /> {<br /> return (num << cnt) | (num >>> (32 - cnt))<br /> }<br /> function cmn(q, a, b, x, s, t)<br /> {<br /> return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)<br /> }<br /> function ff(a, b, c, d, x, s, t)<br /> {<br /> return cmn((b & c) | ((~b) & d), a, b, x, s, t)<br /> }<br /> function gg(a, b, c, d, x, s, t)<br /> {<br /> return cmn((b & d) | (c & (~d)), a, b, x, s, t)<br /> }<br /> function hh(a, b, c, d, x, s, t)<br /> {<br /> return cmn(b ^ c ^ d, a, b, x, s, t)<br /> }<br /> function ii(a, b, c, d, x, s, t)<br /> {<br /> return cmn(c ^ (b | (~d)), a, b, x, s, t)<br /> }<br /> function coreMD5(x)<br /> {<br /> var a = 1732584193<br /> var b = -271733879<br /> var c = -1732584194<br /> var d = 271733878<br /> for(var i = 0; i < x.length; i += 16)<br /> {<br /> var olda = a<br /> var oldb = b<br /> var oldc = c<br /> var oldd = d<br /> a = ff(a, b, c, d, x[i+ 0], 7 , -680876936)<br /> d = ff(d, a, b, c, x[i+ 1], 12, -389564586)<br /> c = ff(c, d, a, b, x[i+ 2], 17, 606105819)<br /> b = ff(b, c, d, a, x[i+ 3], 22, -1044525330)<br /> a = ff(a, b, c, d, x[i+ 4], 7 , -176418897)<br /> d = ff(d, a, b, c, x[i+ 5], 12, 1200080426)<br /> c = ff(c, d, a, b, x[i+ 6], 17, -1473231341)<br /> b = ff(b, c, d, a, x[i+ 7], 22, -45705983)<br /> a = ff(a, b, c, d, x[i+ 8], 7 , 1770035416)<br /> d = ff(d, a, b, c, x[i+ 9], 12, -1958414417)<br /> c = ff(c, d, a, b, x[i+10], 17, -42063)<br /> b = ff(b, c, d, a, x[i+11], 22, -1990404162)<br /> a = ff(a, b, c, d, x[i+12], 7 , 1804603682)<br /> d = ff(d, a, b, c, x[i+13], 12, -40341101)<br /> c = ff(c, d, a, b, x[i+14], 17, -1502002290)<br /> b = ff(b, c, d, a, x[i+15], 22, 1236535329)<br /> a = gg(a, b, c, d, x[i+ 1], 5 , -165796510)<br /> d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632)<br /> c = gg(c, d, a, b, x[i+11], 14, 643717713)<br /> b = gg(b, c, d, a, x[i+ 0], 20, -373897302)<br /> a = gg(a, b, c, d, x[i+ 5], 5 , -701558691)<br /> d = gg(d, a, b, c, x[i+10], 9 , 38016083)<br /> c = gg(c, d, a, b, x[i+15], 14, -660478335)<br /> b = gg(b, c, d, a, x[i+ 4], 20, -405537848)<br /> a = gg(a, b, c, d, x[i+ 9], 5 , 568446438)<br /> d = gg(d, a, b, c, x[i+14], 9 , -1019803690)<br /> c = gg(c, d, a, b, x[i+ 3], 14, -187363961)<br /> b = gg(b, c, d, a, x[i+ 8], 20, 1163531501)<br /> a = gg(a, b, c, d, x[i+13], 5 , -1444681467)<br /> d = gg(d, a, b, c, x[i+ 2], 9 , -51403784)<br /> c = gg(c, d, a, b, x[i+ 7], 14, 1735328473)<br /> b = gg(b, c, d, a, x[i+12], 20, -1926607734)<br /> a = hh(a, b, c, d, x[i+ 5], 4 , -378558)<br /> d = hh(d, a, b, c, x[i+ 8], 11, -2022574463)<br /> c = hh(c, d, a, b, x[i+11], 16, 1839030562)<br /> b = hh(b, c, d, a, x[i+14], 23, -35309556)<br /> a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060)<br /> d = hh(d, a, b, c, x[i+ 4], 11, 1272893353)<br /> c = hh(c, d, a, b, x[i+ 7], 16, -155497632)<br /> b = hh(b, c, d, a, x[i+10], 23, -1094730640)<br /> a = hh(a, b, c, d, x[i+13], 4 , 681279174)<br /> d = hh(d, a, b, c, x[i+ 0], 11, -358537222)<br /> c = hh(c, d, a, b, x[i+ 3], 16, -722521979)<br /> b = hh(b, c, d, a, x[i+ 6], 23, 76029189)<br /> a = hh(a, b, c, d, x[i+ 9], 4 , -640364487)<br /> d = hh(d, a, b, c, x[i+12], 11, -421815835)<br /> c = hh(c, d, a, b, x[i+15], 16, 530742520)<br /> b = hh(b, c, d, a, x[i+ 2], 23, -995338651)<br /> a = ii(a, b, c, d, x[i+ 0], 6 , -198630844)<br /> d = ii(d, a, b, c, x[i+ 7], 10, 1126891415)<br /> c = ii(c, d, a, b, x[i+14], 15, -1416354905)<br /> b = ii(b, c, d, a, x[i+ 5], 21, -57434055)<br /> a = ii(a, b, c, d, x[i+12], 6 , 1700485571)<br /> d = ii(d, a, b, c, x[i+ 3], 10, -1894986606)<br /> c = ii(c, d, a, b, x[i+10], 15, -1051523)<br /> b = ii(b, c, d, a, x[i+ 1], 21, -2054922799)<br /> a = ii(a, b, c, d, x[i+ 8], 6 , 1873313359)<br /> d = ii(d, a, b, c, x[i+15], 10, -30611744)<br /> c = ii(c, d, a, b, x[i+ 6], 15, -1560198380)<br /> b = ii(b, c, d, a, x[i+13], 21, 1309151649)<br /> a = ii(a, b, c, d, x[i+ 4], 6 , -145523070)<br /> d = ii(d, a, b, c, x[i+11], 10, -1120210379)<br /> c = ii(c, d, a, b, x[i+ 2], 15, 718787259)<br /> b = ii(b, c, d, a, x[i+ 9], 21, -343485551)<br /> a = safe_add(a, olda)<br /> b = safe_add(b, oldb)<br /> c = safe_add(c, oldc)<br /> d = safe_add(d, oldd)<br /> }<br /> if (Type == 32)<br /> {<br /> return [a, b, c, d];<br /> }<br /> else<br /> {<br /> return [b, c];<br /> //Dicky modified this to fit 16byte database password @ 2005-9-2 11:21:15<br /> }<br /> }<br /> function binl2hex(binarray)<br /> {<br /> var hex_tab = "0123456789abcdef"<br /> var str = ""<br /> for(var i = 0; i < binarray.length * 4; i++)<br /> {<br /> str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +<br /> hex_tab.charAt((binarray[i>>2] >> ((i%4)*8)) & 0xF)<br /> }<br /> return str<br /> }<br /> function arr2binl(arr)<br /> {<br /> var nblk = ((arr.length + 8) >> 6) + 1<br /> var blks = new Array(nblk * 16)<br /> for(var i = 0; i < nblk * 16; i++) blks[i] = 0<br /> for(var i = 0; i < arr.length; i++)<br /> blks[i>>2] |= (arr[i] & 0xFF) << ((i%4) * 8)<br /> blks[i>>2] |= 0x80 << ((i%4) * 8)<br /> blks[nblk*16-2] = arr.length * 8<br /> return blks<br /> }<br /> }</p> <p>function String.prototype.MD5(Type)<br /> {<br /> var len=this.length;<br /> var arr=new Array(len);<br /> for(var i=0;i<len;i++)<br /> {<br /> var cc=this.charCodeAt(i);<br /> arr[i]=cc&0xFF;<br /> }<br /> return ByteMD5(arr,Type);<br /> }<br /> //调用方法<br /> alert("admin".MD5(16));<br /> //--><br /> </script> [Ctrl+A 全选 提示:你可先修改部分代码,再点运行代码]
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