diff options
Diffstat (limited to 'app/assets/javascripts/srp/lib/MD5.js')
| -rw-r--r-- | app/assets/javascripts/srp/lib/MD5.js | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/app/assets/javascripts/srp/lib/MD5.js b/app/assets/javascripts/srp/lib/MD5.js new file mode 100644 index 0000000..55cb8cc --- /dev/null +++ b/app/assets/javascripts/srp/lib/MD5.js @@ -0,0 +1,207 @@ +/** +* +* MD5 (Message-Digest Algorithm) +* http://www.webtoolkit.info/ +* +**/ + +var MD5 = function (string) { + + function RotateLeft(lValue, iShiftBits) { + return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits)); + } + + function AddUnsigned(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); + } + } + + function F(x,y,z) { return (x & y) | ((~x) & z); } + function G(x,y,z) { return (x & z) | (y & (~z)); } + function H(x,y,z) { return (x ^ y ^ z); } + function I(x,y,z) { return (y ^ (x | (~z))); } + + function FF(a,b,c,d,x,s,ac) { + a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); + return AddUnsigned(RotateLeft(a, s), b); + }; + + function GG(a,b,c,d,x,s,ac) { + a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); + return AddUnsigned(RotateLeft(a, s), b); + }; + + function HH(a,b,c,d,x,s,ac) { + a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); + return AddUnsigned(RotateLeft(a, s), b); + }; + + function II(a,b,c,d,x,s,ac) { + a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); + return AddUnsigned(RotateLeft(a, s), b); + }; + + function ConvertToWordArray(string) { + var lWordCount; + var lMessageLength = string.length; + var lNumberOfWords_temp1=lMessageLength + 8; + var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64; + var lNumberOfWords = (lNumberOfWords_temp2+1)*16; + var lWordArray=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] | (string.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; + }; + + function WordToHex(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; + }; + + function Utf8Encode(string) { + string = string.replace(/\r\n/g,"\n"); + var utftext = ""; + + for (var n = 0; n < string.length; n++) { + + var c = string.charCodeAt(n); + + if (c < 128) { + utftext += String.fromCharCode(c); + } + else if((c > 127) && (c < 2048)) { + utftext += String.fromCharCode((c >> 6) | 192); + utftext += String.fromCharCode((c & 63) | 128); + } + else { + utftext += String.fromCharCode((c >> 12) | 224); + utftext += String.fromCharCode(((c >> 6) & 63) | 128); + utftext += String.fromCharCode((c & 63) | 128); + } + + } + + return utftext; + }; + + var x=Array(); + var k,AA,BB,CC,DD,a,b,c,d; + var S11=7, S12=12, S13=17, S14=22; + var S21=5, S22=9 , S23=14, S24=20; + var S31=4, S32=11, S33=16, S34=23; + var S41=6, S42=10, S43=15, S44=21; + + string = Utf8Encode(string); + + x = ConvertToWordArray(string); + + a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; + + for (k=0;k<x.length;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(); +} |