[javascript] criptaggio md5 e stampa
ragazzi non capisco come mai ma non mi fa la funzione md5, preciso che la funzione l'ho presa da una guida XD ecco il codice
pagina md5.js
Codice HTML:
function md5 (str) {
var xl;
var rotateLeft = function (lValue, iShiftBits) {
return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
};
var addUnsigned = function (lX,lY) {
var lX4,lY4,lX8,lY8,lResult;
lX8 = (lX & 0x80000000);
lY8 = (lY & 0x80000000);
lX4 = (lX & 0x40000000); lY4 = (lY & 0x40000000);
lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
if (lX4 & lY4) {
return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
} if (lX4 | lY4) {
if (lResult & 0x40000000) {
return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
} else {
return (lResult ^ 0x40000000 ^ lX8 ^ lY8); }
} else {
return (lResult ^ lX8 ^ lY8);
}
};
var _F = function (x,y,z) { return (x & y) | ((~x) & z); };
var _G = function (x,y,z) { return (x & z) | (y & (~z)); };
var _H = function (x,y,z) { return (x ^ y ^ z); };
var _I = function (x,y,z) { return (y ^ (x | (~z))); };
var _FF = function (a,b,c,d,x,s,ac) {
a = addUnsigned(a, addUnsigned(addUnsigned(_F(b, c, d), x), ac));
return addUnsigned(rotateLeft(a, s), b);
};
var _GG = function (a,b,c,d,x,s,ac) {
a = addUnsigned(a, addUnsigned(addUnsigned(_G(b, c, d), x), ac));
return addUnsigned(rotateLeft(a, s), b);
};
var _HH = function (a,b,c,d,x,s,ac) {
a = addUnsigned(a, addUnsigned(addUnsigned(_H(b, c, d), x), ac));
return addUnsigned(rotateLeft(a, s), b);
};
var _II = function (a,b,c,d,x,s,ac) {
a = addUnsigned(a, addUnsigned(addUnsigned(_I(b, c, d), x), ac));
return addUnsigned(rotateLeft(a, s), b);
};
var convertToWordArray = function (str) {
var lWordCount;
var lMessageLength = str.length;
var lNumberOfWords_temp1=lMessageLength + 8; var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
var lWordArray=new Array(lNumberOfWords-1);
var lBytePosition = 0;
var lByteCount = 0; while ( lByteCount < lMessageLength ) {
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = (lWordArray[lWordCount] | (str.charCodeAt(lByteCount)<<lBytePosition));
lByteCount++; }
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
lWordArray[lNumberOfWords-2] = lMessageLength<<3; lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
return lWordArray;
};
var wordToHex = function (lValue) { var wordToHexValue="",wordToHexValue_temp="",lByte,lCount;
for (lCount = 0;lCount<=3;lCount++) {
lByte = (lValue>>>(lCount*8)) & 255;
wordToHexValue_temp = "0" + lByte.toString(16);
wordToHexValue = wordToHexValue + wordToHexValue_temp.substr(wordToHexValue_temp.length-2,2); }
return wordToHexValue;
};
var x=[], k,AA,BB,CC,DD,a,b,c,d,
S11=7, S12=12, S13=17, S14=22,
S21=5, S22=9 , S23=14, S24=20,
S31=4, S32=11, S33=16, S34=23,
S41=6, S42=10, S43=15, S44=21;
str = this.utf8_encode(str);
x = convertToWordArray(str);
a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
xl = x.length;
for (k=0;k<xl;k+=16) {
AA=a; BB=b; CC=c; DD=d;
a=_FF(a,b,c,d,x[k+0], S11,0xD76AA478);
d=_FF(d,a,b,c,x[k+1], S12,0xE8C7B756); c=_FF(c,d,a,b,x[k+2], S13,0x242070DB);
b=_FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
a=_FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
d=_FF(d,a,b,c,x[k+5], S12,0x4787C62A);
c=_FF(c,d,a,b,x[k+6], S13,0xA8304613); b=_FF(b,c,d,a,x[k+7], S14,0xFD469501);
a=_FF(a,b,c,d,x[k+8], S11,0x698098D8);
d=_FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
c=_FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
b=_FF(b,c,d,a,x[k+11],S14,0x895CD7BE); a=_FF(a,b,c,d,x[k+12],S11,0x6B901122);
d=_FF(d,a,b,c,x[k+13],S12,0xFD987193);
c=_FF(c,d,a,b,x[k+14],S13,0xA679438E);
b=_FF(b,c,d,a,x[k+15],S14,0x49B40821);
a=_GG(a,b,c,d,x[k+1], S21,0xF61E2562); d=_GG(d,a,b,c,x[k+6], S22,0xC040B340);
c=_GG(c,d,a,b,x[k+11],S23,0x265E5A51);
b=_GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
a=_GG(a,b,c,d,x[k+5], S21,0xD62F105D);
d=_GG(d,a,b,c,x[k+10],S22,0x2441453); c=_GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
b=_GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
a=_GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
d=_GG(d,a,b,c,x[k+14],S22,0xC33707D6);
c=_GG(c,d,a,b,x[k+3], S23,0xF4D50D87); b=_GG(b,c,d,a,x[k+8], S24,0x455A14ED);
a=_GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
d=_GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
c=_GG(c,d,a,b,x[k+7], S23,0x676F02D9);
b=_GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A); a=_HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
d=_HH(d,a,b,c,x[k+8], S32,0x8771F681);
c=_HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
b=_HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
a=_HH(a,b,c,d,x[k+1], S31,0xA4BEEA44); d=_HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
c=_HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
b=_HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
a=_HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
d=_HH(d,a,b,c,x[k+0], S32,0xEAA127FA); c=_HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
b=_HH(b,c,d,a,x[k+6], S34,0x4881D05);
a=_HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
d=_HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
c=_HH(c,d,a,b,x[k+15],S33,0x1FA27CF8); b=_HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
a=_II(a,b,c,d,x[k+0], S41,0xF4292244);
d=_II(d,a,b,c,x[k+7], S42,0x432AFF97);
c=_II(c,d,a,b,x[k+14],S43,0xAB9423A7);
b=_II(b,c,d,a,x[k+5], S44,0xFC93A039); a=_II(a,b,c,d,x[k+12],S41,0x655B59C3);
d=_II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
c=_II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
b=_II(b,c,d,a,x[k+1], S44,0x85845DD1);
a=_II(a,b,c,d,x[k+8], S41,0x6FA87E4F); d=_II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
c=_II(c,d,a,b,x[k+6], S43,0xA3014314);
b=_II(b,c,d,a,x[k+13],S44,0x4E0811A1);
a=_II(a,b,c,d,x[k+4], S41,0xF7537E82);
d=_II(d,a,b,c,x[k+11],S42,0xBD3AF235); c=_II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
b=_II(b,c,d,a,x[k+9], S44,0xEB86D391);
a=addUnsigned(a,AA);
b=addUnsigned(b,BB);
c=addUnsigned(c,CC); d=addUnsigned(d,DD);
}
var temp = wordToHex(a)+wordToHex(b)+wordToHex(c)+wordToHex(d);
return temp.toLowerCase();
}
pagina index.html
Codice HTML:
<html>
<head>
<script language="javascript" type="text/javascript" src="md5.js"></script>
</head>
<body>
<script type="text/javascript">
var cod = md5('1');
document.write(cod);
</script>
</body>
</html>
grazie a tutti per la collaborazione :)
