# File: md5.js

 ```/* * md5.jvs 1.0b 27/06/96 * * Javascript implementation of the RSA Data Security, Inc. MD5 * Message-Digest Algorithm. * * Copyright (c) 1996 Henri Torgemane. All Rights Reserved. * * Permission to use, copy, modify, and distribute this software * and its documentation for any purposes and without * fee is hereby granted provided that this copyright notice * appears in all copies. * * Of course, this soft is provided "as is" without express or implied * warranty of any kind. */ function array(n) { for(i=0;i> 4 with it.. * Of course, these functions are slower than the original would be, but * at least, they work! */ function integer(n) { return n%(0x7fffffff+0x7fffffff+2); } function shr(a,b) { a=integer(a); b=integer(b); if (a-(0x7fffffff+1)>=0) { a=a%(0x7fffffff+1); a=a >> b; a+=0x40000000>>(b-1); } else a=a >> b; return a; } function shl1(a) { a=a%(0x7fffffff+1); if (a&0x40000000==0x40000000) { a-=0x40000000; a*=2; a+=(0x7fffffff+1); } else a*=2; return a; } function shl(a,b) { a=integer(a); b=integer(b); for (var i=0;i=0) if (t2>=0) return ((t1&t2)+(0x7fffffff+1)); else return (t1&b); else if (t2>=0) return (a&t2); else return (a&b); } function or(a,b) { a=integer(a); b=integer(b); var t1=(a-(0x7fffffff+1)); var t2=(b-(0x7fffffff+1)); if (t1>=0) if (t2>=0) return ((t1|t2)+(0x7fffffff+1)); else return ((t1|b)+(0x7fffffff+1)); else if (t2>=0) return ((a|t2)+(0x7fffffff+1)); else return (a|b); } function xor(a,b) { a=integer(a); b=integer(b); var t1=(a-(0x7fffffff+1)); var t2=(b-(0x7fffffff+1)); if (t1>=0) if (t2>=0) return (t1^t2); else return ((t1^b)+(0x7fffffff+1)); else if (t2>=0) return ((a^t2)+(0x7fffffff+1)); else return (a^b); } function not(a) { a=integer(a); return (0x7fffffff+0x7fffffff+1-a); } /* Here begin the real algorithm */ var state = new array(4); var count = new array(2); count[0] = 0; count[1] = 0; var buffer = new array(64); var transformBuffer = new array(16); var digestBits = new array(16); var S11 = 7; var S12 = 12; var S13 = 17; var S14 = 22; var S21 = 5; var S22 = 9; var S23 = 14; var S24 = 20; var S31 = 4; var S32 = 11; var S33 = 16; var S34 = 23; var S41 = 6; var S42 = 10; var S43 = 15; var S44 = 21; function F(x,y,z) { return or(and(x,y),and(not(x),z)); } function G(x,y,z) { return or(and(x,z),and(y,not(z))); } function H(x,y,z) { return xor(xor(x,y),z); } function I(x,y,z) { return xor(y ,or(x , not(z))); } function rotateLeft(a,n) { return or(shl(a, n),(shr(a,(32 - n)))); } function FF(a,b,c,d,x,s,ac) { a = a+F(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function GG(a,b,c,d,x,s,ac) { a = a+G(b, c, d) +x + ac; a = rotateLeft(a, s); a = a+b; return a; } function HH(a,b,c,d,x,s,ac) { a = a+H(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function II(a,b,c,d,x,s,ac) { a = a+I(b, c, d) + x + ac; a = rotateLeft(a, s); a = a+b; return a; } function transform(buf,offset) { var a=0, b=0, c=0, d=0; var x = transformBuffer; a = state[0]; b = state[1]; c = state[2]; d = state[3]; for (i = 0; i < 16; i++) { x[i] = and(buf[i*4+offset],0xff); for (j = 1; j < 4; j++) { x[i]+=shl(and(buf[i*4+j+offset] ,0xff), j * 8); } } /* Round 1 */ a = FF ( a, b, c, d, x[ 0], S11, 0x576aa479+0x7fffffff); /* 1 */ d = FF ( d, a, b, c, x[ 1], S12, 0x68c7b757+0x7fffffff); /* 2 */ c = FF ( c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ b = FF ( b, c, d, a, x[ 3], S14, 0x41bdceef+0x7fffffff); /* 4 */ a = FF ( a, b, c, d, x[ 4], S11, 0x757c0fb0+0x7fffffff); /* 5 */ d = FF ( d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ c = FF ( c, d, a, b, x[ 6], S13, 0x28304614+0x7fffffff); /* 7 */ b = FF ( b, c, d, a, x[ 7], S14, 0x7d469502+0x7fffffff); /* 8 */ a = FF ( a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ d = FF ( d, a, b, c, x[ 9], S12, 0x0b44f7b0+0x7fffffff); /* 10 */ c = FF ( c, d, a, b, x[10], S13, 0x7fff5bb2+0x7fffffff); /* 11 */ b = FF ( b, c, d, a, x[11], S14, 0x095cd7bf+0x7fffffff); /* 12 */ a = FF ( a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ d = FF ( d, a, b, c, x[13], S12, 0x7d987194+0x7fffffff); /* 14 */ c = FF ( c, d, a, b, x[14], S13, 0x2679438f+0x7fffffff); /* 15 */ b = FF ( b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ /* Round 2 */ a = GG ( a, b, c, d, x[ 1], S21, 0x761e2563+0x7fffffff); /* 17 */ d = GG ( d, a, b, c, x[ 6], S22, 0x4040b341+0x7fffffff); /* 18 */ c = GG ( c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ b = GG ( b, c, d, a, x[ 0], S24, 0x69b6c7ab+0x7fffffff); /* 20 */ a = GG ( a, b, c, d, x[ 5], S21, 0x562f105e+0x7fffffff); /* 21 */ d = GG ( d, a, b, c, x[10], S22, 0x02441453); /* 22 */ c = GG ( c, d, a, b, x[15], S23, 0x58a1e682+0x7fffffff); /* 23 */ b = GG ( b, c, d, a, x[ 4], S24, 0x67d3fbc9+0x7fffffff); /* 24 */ a = GG ( a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ d = GG ( d, a, b, c, x[14], S22, 0x433707d7+0x7fffffff); /* 26 */ c = GG ( c, d, a, b, x[ 3], S23, 0x74d50d88+0x7fffffff); /* 27 */ b = GG ( b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ a = GG ( a, b, c, d, x[13], S21, 0x29e3e906+0x7fffffff); /* 29 */ d = GG ( d, a, b, c, x[ 2], S22, 0x7cefa3f9+0x7fffffff); /* 30 */ c = GG ( c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ b = GG ( b, c, d, a, x[12], S24, 0x0d2a4c8b+0x7fffffff); /* 32 */ /* Round 3 */ a = HH ( a, b, c, d, x[ 5], S31, 0x7ffa3943+0x7fffffff); /* 33 */ d = HH ( d, a, b, c, x[ 8], S32, 0x0771f682+0x7fffffff); /* 34 */ c = HH ( c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ b = HH ( b, c, d, a, x[14], S34, 0x7de5380d+0x7fffffff); /* 36 */ a = HH ( a, b, c, d, x[ 1], S31, 0x24beea45+0x7fffffff); /* 37 */ d = HH ( d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ c = HH ( c, d, a, b, x[ 7], S33, 0x76bb4b61+0x7fffffff); /* 39 */ b = HH ( b, c, d, a, x[10], S34, 0x3ebfbc71+0x7fffffff); /* 40 */ a = HH ( a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ d = HH ( d, a, b, c, x[ 0], S32, 0x6aa127fb+0x7fffffff); /* 42 */ c = HH ( c, d, a, b, x[ 3], S33, 0x54ef3086+0x7fffffff); /* 43 */ b = HH ( b, c, d, a, x[ 6], S34, 0x04881d05); /* 44 */ a = HH ( a, b, c, d, x[ 9], S31, 0x59d4d03a+0x7fffffff); /* 45 */ d = HH ( d, a, b, c, x[12], S32, 0x66db99e6+0x7fffffff); /* 46 */ c = HH ( c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ b = HH ( b, c, d, a, x[ 2], S34, 0x44ac5666+0x7fffffff); /* 48 */ /* Round 4 */ a = II ( a, b, c, d, x[ 0], S41, 0x74292245+0x7fffffff); /* 49 */ d = II ( d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ c = II ( c, d, a, b, x[14], S43, 0x2b9423a8+0x7fffffff); /* 51 */ b = II ( b, c, d, a, x[ 5], S44, 0x7c93a03a+0x7fffffff); /* 52 */ a = II ( a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ d = II ( d, a, b, c, x[ 3], S42, 0x0f0ccc93+0x7fffffff); /* 54 */ c = II ( c, d, a, b, x[10], S43, 0x7feff47e+0x7fffffff); /* 55 */ b = II ( b, c, d, a, x[ 1], S44, 0x05845dd2+0x7fffffff); /* 56 */ a = II ( a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ d = II ( d, a, b, c, x[15], S42, 0x7e2ce6e1+0x7fffffff); /* 58 */ c = II ( c, d, a, b, x[ 6], S43, 0x23014315+0x7fffffff); /* 59 */ b = II ( b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ a = II ( a, b, c, d, x[ 4], S41, 0x77537e83+0x7fffffff); /* 61 */ d = II ( d, a, b, c, x[11], S42, 0x3d3af236+0x7fffffff); /* 62 */ c = II ( c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ b = II ( b, c, d, a, x[ 9], S44, 0x6b86d392+0x7fffffff); /* 64 */ state[0] +=a; state[1] +=b; state[2] +=c; state[3] +=d; } function init() { count[0]=count[1] = 0; state[0] = 0x67452301; state[1] = 0x6fcdab8a+0x7fffffff; state[2] = 0x18badcff+0x7fffffff; state[3] = 0x10325476; for (i = 0; i < digestBits.length; i++) digestBits[i] = 0; } function update(b) { var index,i; index = and(shr(count[0],3) , 0x3f); if (count[0]<0x7fffffff+0x7fffffff-6) count[0] += 8; else { count[1]++; count[0]-=0x7fffffff+0x7fffffff+2; count[0]+=8; } buffer[index] = and(b,0xff); if (index >= 63) { transform(buffer, 0); } } function finish() { var bits = new array(8); var padding; var i=0, index=0, padLen=0; for (i = 0; i < 4; i++) { bits[i] = and(shr(count[0],(i * 8)), 0xff); } for (i = 0; i < 4; i++) { bits[i+4]=and(shr(count[1],(i * 8)), 0xff); } index = and(shr(count[0], 3) ,0x3f); padLen = (index < 56) ? (56 - index) : (120 - index); padding = new array(64); padding[0] = 0x80; for (i=0;i?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"+ "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~"; function MD5(entree) { var l,s,k,ka,kb,kc,kd; init(); for (k=0;k