/**
* ----------------------------------------------------------------
*  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.
* 
* 
* Some basic logical functions had to be rewritten because of a bug in
* Javascript.. Just try to compute 0xffffffff >> 4 with it..
* Of course, these functions are slower than the original would be, but
* at least, they work!
*
* 
* ----------------------------------------------------------------
* the good news: the code is from 96, thus very backward compatible.
* the bad news:  this file does some things in the global scope that 
*                i don't like. it is very, very likely that somewhen 
*                oneone has a conflict because of that. so i did a 
*                bit of rewriting, prefixed all vars and functions 
*                with the string "md5_". 
*                the only 2 things left are the function that 
*                created the md5, called MD5(), and the bool flag 
*                called loaded_MD5 which is set to true so you know 
*                the function was included and exists.
* 
*                some code in the global scope gets executed only by 
*                including the js file, that's crap. an init function
*                would be better. or a class, but i'm not sure how 
*                backward compatible that is. i left that as it is.
* 
* that quote above about buggy js functions is certainly not true 
* anymore, but let's keep things as they are. as henri said, it 
* works, and it's backward compatible. 
* 
* 2002/10/16 --andrej
* ----------------------------------------------------------------
* 
* @package    javascript_core
* @subpackage crypt
*/

function md5_array(n) {
  for(i=0;i<n;i++) this[i]=0;
  this.length=n;
}

function md5_integer(n) { return n%(0xffffffff+1); }

function md5_shr(a,b) {
  a=md5_integer(a);
  b=md5_integer(b);
  if (a-0x80000000>=0) {
    a=a%0x80000000;
    a>>=b;
    a+=0x40000000>>(b-1);
  } else
    a>>=b;
  return a;
}

function md5_shl1(a) {
  a=a%0x80000000;
  if (a&0x40000000==0x40000000)
  {
    a-=0x40000000;  
    a*=2;
    a+=0x80000000;
  } else
    a*=2;
  return a;
}

function md5_shl(a,b) {
  a=md5_integer(a);
  b=md5_integer(b);
  for (var i=0;i<b;i++) a=md5_shl1(a);
  return a;
}

function md5_and(a,b) {
  a=md5_integer(a);
  b=md5_integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0) 
    if (t2>=0) 
      return ((t1&t2)+0x80000000);
    else
      return (t1&b);
  else
    if (t2>=0)
      return (a&t2);
    else
      return (a&b);  
}

function md5_or(a,b) {
  a=md5_integer(a);
  b=md5_integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0) 
    if (t2>=0) 
      return ((t1|t2)+0x80000000);
    else
      return ((t1|b)+0x80000000);
  else
    if (t2>=0)
      return ((a|t2)+0x80000000);
    else
      return (a|b);  
}

function md5_xor(a,b) {
  a=md5_integer(a);
  b=md5_integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0) 
    if (t2>=0) 
      return (t1^t2);
    else
      return ((t1^b)+0x80000000);
  else
    if (t2>=0)
      return ((a^t2)+0x80000000);
    else
      return (a^b);  
}

function md5_not(a) {
  a=md5_integer(a);
  return (0xffffffff-a);
}

/* Here begin the real algorithm */

    var md5_state = new md5_array(4); 
    var md5_count = new md5_array(2);
 md5_count[0] = 0;
 md5_count[1] = 0;                     
    var md5_buffer = new md5_array(64); 
    var md5_transformBuffer = new md5_array(16); 
    var md5_digestBits = new md5_array(16);

    var md5_S11 = 7;
    var md5_S12 = 12;
    var md5_S13 = 17;
    var md5_S14 = 22;
    var md5_S21 = 5;
    var md5_S22 = 9;
    var md5_S23 = 14;
    var md5_S24 = 20;
    var md5_S31 = 4;
    var md5_S32 = 11;
    var md5_S33 = 16;
    var md5_S34 = 23;
    var md5_S41 = 6;
    var md5_S42 = 10;
    var md5_S43 = 15;
    var md5_S44 = 21;

    function md5_F(x,y,z) {
 return md5_or(md5_and(x,y),md5_and(md5_not(x),z));
    }

    function md5_G(x,y,z) {
 return md5_or(md5_and(x,z),md5_and(y,md5_not(z)));
    }

    function md5_H(x,y,z) {
 return md5_xor(md5_xor(x,y),z);
    }

    function md5_I(x,y,z) {
 return md5_xor(y ,md5_or(x , md5_not(z)));
    }

    function md5_rotateLeft(a,n) {
 return md5_or(md5_shl(a, n),(md5_shr(a,(32 - n))));
    }

    function md5_FF(a,b,c,d,x,s,ac) {
        a = a+md5_F(b, c, d) + x + ac;
 a = md5_rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function md5_GG(a,b,c,d,x,s,ac) {
 a = a+md5_G(b, c, d) +x + ac;
 a = md5_rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function md5_HH(a,b,c,d,x,s,ac) {
 a = a+md5_H(b, c, d) + x + ac;
 a = md5_rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function md5_II(a,b,c,d,x,s,ac) {
 a = a+md5_I(b, c, d) + x + ac;
 a = md5_rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function md5_transform(buf,offset) { 
 var a=0, b=0, c=0, d=0; 
 var x = md5_transformBuffer;
 
 a = md5_state[0];
 b = md5_state[1];
 c = md5_state[2];
 d = md5_state[3];
 
 for (i = 0; i < 16; i++) {
     x[i] = md5_and(buf[i*4+offset],0xff);
     for (j = 1; j < 4; j++) {
  x[i]+=md5_shl(md5_and(buf[i*4+j+offset] ,0xff), j * 8);
     }
 }

 /* Round 1 */
 a = md5_FF ( a, b, c, d, x[ 0], md5_S11, 0xd76aa478); /* 1 */
 d = md5_FF ( d, a, b, c, x[ 1], md5_S12, 0xe8c7b756); /* 2 */
 c = md5_FF ( c, d, a, b, x[ 2], md5_S13, 0x242070db); /* 3 */
 b = md5_FF ( b, c, d, a, x[ 3], md5_S14, 0xc1bdceee); /* 4 */
 a = md5_FF ( a, b, c, d, x[ 4], md5_S11, 0xf57c0faf); /* 5 */
 d = md5_FF ( d, a, b, c, x[ 5], md5_S12, 0x4787c62a); /* 6 */
 c = md5_FF ( c, d, a, b, x[ 6], md5_S13, 0xa8304613); /* 7 */
 b = md5_FF ( b, c, d, a, x[ 7], md5_S14, 0xfd469501); /* 8 */
 a = md5_FF ( a, b, c, d, x[ 8], md5_S11, 0x698098d8); /* 9 */
 d = md5_FF ( d, a, b, c, x[ 9], md5_S12, 0x8b44f7af); /* 10 */
 c = md5_FF ( c, d, a, b, x[10], md5_S13, 0xffff5bb1); /* 11 */
 b = md5_FF ( b, c, d, a, x[11], md5_S14, 0x895cd7be); /* 12 */
 a = md5_FF ( a, b, c, d, x[12], md5_S11, 0x6b901122); /* 13 */
 d = md5_FF ( d, a, b, c, x[13], md5_S12, 0xfd987193); /* 14 */
 c = md5_FF ( c, d, a, b, x[14], md5_S13, 0xa679438e); /* 15 */
 b = md5_FF ( b, c, d, a, x[15], md5_S14, 0x49b40821); /* 16 */

 /* Round 2 */
 a = md5_GG ( a, b, c, d, x[ 1], md5_S21, 0xf61e2562); /* 17 */
 d = md5_GG ( d, a, b, c, x[ 6], md5_S22, 0xc040b340); /* 18 */
 c = md5_GG ( c, d, a, b, x[11], md5_S23, 0x265e5a51); /* 19 */
 b = md5_GG ( b, c, d, a, x[ 0], md5_S24, 0xe9b6c7aa); /* 20 */
 a = md5_GG ( a, b, c, d, x[ 5], md5_S21, 0xd62f105d); /* 21 */
 d = md5_GG ( d, a, b, c, x[10], md5_S22,  0x2441453); /* 22 */
 c = md5_GG ( c, d, a, b, x[15], md5_S23, 0xd8a1e681); /* 23 */
 b = md5_GG ( b, c, d, a, x[ 4], md5_S24, 0xe7d3fbc8); /* 24 */
 a = md5_GG ( a, b, c, d, x[ 9], md5_S21, 0x21e1cde6); /* 25 */
 d = md5_GG ( d, a, b, c, x[14], md5_S22, 0xc33707d6); /* 26 */
 c = md5_GG ( c, d, a, b, x[ 3], md5_S23, 0xf4d50d87); /* 27 */
 b = md5_GG ( b, c, d, a, x[ 8], md5_S24, 0x455a14ed); /* 28 */
 a = md5_GG ( a, b, c, d, x[13], md5_S21, 0xa9e3e905); /* 29 */
 d = md5_GG ( d, a, b, c, x[ 2], md5_S22, 0xfcefa3f8); /* 30 */
 c = md5_GG ( c, d, a, b, x[ 7], md5_S23, 0x676f02d9); /* 31 */
 b = md5_GG ( b, c, d, a, x[12], md5_S24, 0x8d2a4c8a); /* 32 */

 /* Round 3 */
 a = md5_HH ( a, b, c, d, x[ 5], md5_S31, 0xfffa3942); /* 33 */
 d = md5_HH ( d, a, b, c, x[ 8], md5_S32, 0x8771f681); /* 34 */
 c = md5_HH ( c, d, a, b, x[11], md5_S33, 0x6d9d6122); /* 35 */
 b = md5_HH ( b, c, d, a, x[14], md5_S34, 0xfde5380c); /* 36 */
 a = md5_HH ( a, b, c, d, x[ 1], md5_S31, 0xa4beea44); /* 37 */
 d = md5_HH ( d, a, b, c, x[ 4], md5_S32, 0x4bdecfa9); /* 38 */
 c = md5_HH ( c, d, a, b, x[ 7], md5_S33, 0xf6bb4b60); /* 39 */
 b = md5_HH ( b, c, d, a, x[10], md5_S34, 0xbebfbc70); /* 40 */
 a = md5_HH ( a, b, c, d, x[13], md5_S31, 0x289b7ec6); /* 41 */
 d = md5_HH ( d, a, b, c, x[ 0], md5_S32, 0xeaa127fa); /* 42 */
 c = md5_HH ( c, d, a, b, x[ 3], md5_S33, 0xd4ef3085); /* 43 */
 b = md5_HH ( b, c, d, a, x[ 6], md5_S34,  0x4881d05); /* 44 */
 a = md5_HH ( a, b, c, d, x[ 9], md5_S31, 0xd9d4d039); /* 45 */
 d = md5_HH ( d, a, b, c, x[12], md5_S32, 0xe6db99e5); /* 46 */
 c = md5_HH ( c, d, a, b, x[15], md5_S33, 0x1fa27cf8); /* 47 */
 b = md5_HH ( b, c, d, a, x[ 2], md5_S34, 0xc4ac5665); /* 48 */

 /* Round 4 */
 a = md5_II ( a, b, c, d, x[ 0], md5_S41, 0xf4292244); /* 49 */
 d = md5_II ( d, a, b, c, x[ 7], md5_S42, 0x432aff97); /* 50 */
 c = md5_II ( c, d, a, b, x[14], md5_S43, 0xab9423a7); /* 51 */
 b = md5_II ( b, c, d, a, x[ 5], md5_S44, 0xfc93a039); /* 52 */
 a = md5_II ( a, b, c, d, x[12], md5_S41, 0x655b59c3); /* 53 */
 d = md5_II ( d, a, b, c, x[ 3], md5_S42, 0x8f0ccc92); /* 54 */
 c = md5_II ( c, d, a, b, x[10], md5_S43, 0xffeff47d); /* 55 */
 b = md5_II ( b, c, d, a, x[ 1], md5_S44, 0x85845dd1); /* 56 */
 a = md5_II ( a, b, c, d, x[ 8], md5_S41, 0x6fa87e4f); /* 57 */
 d = md5_II ( d, a, b, c, x[15], md5_S42, 0xfe2ce6e0); /* 58 */
 c = md5_II ( c, d, a, b, x[ 6], md5_S43, 0xa3014314); /* 59 */
 b = md5_II ( b, c, d, a, x[13], md5_S44, 0x4e0811a1); /* 60 */
 a = md5_II ( a, b, c, d, x[ 4], md5_S41, 0xf7537e82); /* 61 */
 d = md5_II ( d, a, b, c, x[11], md5_S42, 0xbd3af235); /* 62 */
 c = md5_II ( c, d, a, b, x[ 2], md5_S43, 0x2ad7d2bb); /* 63 */
 b = md5_II ( b, c, d, a, x[ 9], md5_S44, 0xeb86d391); /* 64 */

 md5_state[0] +=a;
 md5_state[1] +=b;
 md5_state[2] +=c;
 md5_state[3] +=d;

    }

    function md5_init() {
 md5_count[0]=md5_count[1] = 0;
 md5_state[0] = 0x67452301;
 md5_state[1] = 0xefcdab89;
 md5_state[2] = 0x98badcfe;
 md5_state[3] = 0x10325476;
 for (i = 0; i < md5_digestBits.length; i++)
     md5_digestBits[i] = 0;
    }

    function md5_update(b) { 
 var index,i;
 
 index = md5_and(md5_shr(md5_count[0],3) , 0x3f);
 if (md5_count[0]<0xffffffff-7) 
   md5_count[0] += 8;
        else {
   md5_count[1]++;
   md5_count[0]-=0xffffffff+1;
          md5_count[0]+=8;
        }
 md5_buffer[index] = md5_and(b,0xff);
 if (index  >= 63) {
     md5_transform(md5_buffer, 0);
 }
    }

    function md5_finish() {
 var bits = new md5_array(8);
 var padding; 
 var i=0, index=0, padLen=0;

 for (i = 0; i < 4; i++) {
     bits[i] = md5_and(md5_shr(md5_count[0],(i * 8)), 0xff);
 }
        for (i = 0; i < 4; i++) {
     bits[i+4]=md5_and(md5_shr(md5_count[1],(i * 8)), 0xff);
 }
 index = md5_and(md5_shr(md5_count[0], 3) ,0x3f);
 padLen = (index < 56) ? (56 - index) : (120 - index);
 padding = new md5_array(64); 
 padding[0] = 0x80;
        for (i=0;i<padLen;i++)
   md5_update(padding[i]);
        for (i=0;i<8;i++) 
   md5_update(bits[i]);

 for (i = 0; i < 4; i++) {
     for (j = 0; j < 4; j++) {
  md5_digestBits[i*4+j] = md5_and(md5_shr(md5_state[i], (j * 8)) , 0xff);
     }
 } 
    }

/* End of the MD5 algorithm */

function md5_hexa(n) {
 var hexa_h = "0123456789abcdef";
 var hexa_c=""; 
 var hexa_m=n;
 for (hexa_i=0;hexa_i<8;hexa_i++) {
   hexa_c=hexa_h.charAt(Math.abs(hexa_m)%16)+hexa_c;
   hexa_m=Math.floor(hexa_m/16);
 }
 return hexa_c;
}


var md5_ascii="01234567890123456789012345678901" +
          " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"+
          "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";

function MD5(entree) 
{
 var l,s,k,ka,kb,kc,kd;

 md5_init();
 for (k=0;k<entree.length;k++) {
   l=entree.charAt(k);
   md5_update(md5_ascii.lastIndexOf(l));
 }
 md5_finish();
 ka=kb=kc=kd=0;
 for (i=0;i<4;i++) ka+=md5_shl(md5_digestBits[15-i], (i*8));
 for (i=4;i<8;i++) kb+=md5_shl(md5_digestBits[15-i], ((i-4)*8));
 for (i=8;i<12;i++) kc+=md5_shl(md5_digestBits[15-i], ((i-8)*8));
 for (i=12;i<16;i++) kd+=md5_shl(md5_digestBits[15-i], ((i-12)*8));
 s=md5_hexa(kd)+md5_hexa(kc)+md5_hexa(kb)+md5_hexa(ka);
 return s; 
}

loaded_MD5=true