昨天给朋友的Blog加了一段Flash
后来一想用户可以通过HTML源文件知道到这个swf,进而找到这个swf中的所有资源。。。最大的问题是暴露服务器的地址。。。于是想到了HTML的加密。
由于HTML是客户端执行的,能发挥作用的就只有脚本语言了,这里用JavaScript实现

加密时:先把用户的密钥A用md5加密为B,然后用B异或源文件S0得到目标文件S1,把S1存入js变量中。

解密时:询问密钥,然后操作同加密。


<html>
<head>
<title>Web Encoder</title>
<style>
body {
    font-size:12px;
    line-height:12px;
    background-Color:buttonface;
    border-width:0px;
    overflow:auto;
    margin:0px;
    padding:4px;
}

#t1, #t2 {
    width:100%;
    height:40%;
    border-width:1px;
    overflow:auto;
    height:expression((document.body.clientHeight-100)/2);
}

input {
    border-width:1px;
    padding-left:10px;
    padding-right:10px;
    margin:4px;
}
</style>
<script>
function webEncode(){
    strSource=escape(XOR(t1.value,STR.md5(p1.value)));
    //strSource=t1.value;
    strOut="<script>/r/nstrHTML=/"/";/r/n";
    for(var i=0;i+70<strSource.length;i+=70){
        strOut+="strHTML+=/""+addSlash(strSource.substring(i,i+70))+"/";/r/n";
    }
    strOut+="strHTML+=/""+addSlash(strSource.substring(i,strSource.length))+"/";/r/n";
    strOut+=XOR+"/r/n";
    
    //below code load the STR object
    strOut+="var STR =/r/n{/r/n/thexcase : 0,  //* hex output format. 0 - lowercase; 1 - ";
    strOut+="uppercase        *///r/n/tb64pad  : /"/", //* base-64 pad character. /"=/" for ";
    strOut+="strict RFC compliance   *///r/n/tchrsz   : 8,  //* bits per input character";
    strOut+=". 8 - ASCII; 16 - Unicode      *///r/n/t/r/n/tb64_hmac_md5:/r/n/t/tfunction(key, ";
    strOut+="data) { return binl2b64(core_hmac_md5(key, data)); },/r/n/t/t/r/n/tb64_md5:/r/n";
    strOut+="/t/tfunction(s){ return binl2b64(core_md5(str2binl(s), s.length * this.c";
    strOut+="hrsz));},/r/n/t/t/r/n/tbinl2b64:/r/n/t/tfunction(binarray){/r/n/t/t  var tab = /"ABCDE";
    strOut+="FGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+///";/r/n/t/t  var";
    strOut+=" str = /"/";/r/n/t/t  for(var i = 0; i < binarray.length * 4; i += 3)/r/n/t/t  {";
    strOut+="/r/n/t/t    var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) ";
    strOut+="<< 16)/r/n/t/t                | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & ";
    strOut+="0xFF) << 8 )/r/n/t/t                |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%";
    strOut+="4)) & 0xFF);/r/n/t/t    for(var j = 0; j < 4; j++)/r/n/t/t    {/r/n/t/t      if(i ";
    strOut+="* 8 + j * 6 > binarray.length * 32) str += this.b64pad;/r/n/t/t      else ";
    strOut+="str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);/r/n/t/t    }/r/n/t/t  }/r/n/t/t  r";
    strOut+="eturn str;/r/n/t/t},/r/n/t/t/r/n/tbinl2hex:/r/n/t/tfunction(binarray){/r/n/t/t  var hex_t";
    strOut+="ab = this.hexcase ? /"0123456789ABCDEF/" : /"0123456789abcdef/";/r/n/t/t  var ";
    strOut+="str = /"/";/r/n/t/t  for(var i = 0; i < binarray.length * 4; i++)/r/n/t/t  {/r/n/t/t";
    strOut+="    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +/r/n/t/t";
    strOut+="           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);/r/n/t/t ";
    strOut+=" }/r/n/t/t  return str;/r/n/t/t},/r/n/t/r/n/tbinl2str:/r/n/t/tfunction(bin){/r/n/t/t  var st";
    strOut+="r = /"/";/r/n/t/t  var mask = (1 << this.chrsz) - 1;/r/n/t/t  for(var i = 0; i <";
    strOut+=" bin.length * 32; i += this.chrsz)/r/n/t/t    str += String.fromCharCode((";
    strOut+="bin[i>>5] >>> (i % 32)) & mask);/r/n/t/t  return str;/r/n/t/t},/r/n/t/t/r/n/tbit_rol:";
    strOut+="/r/n/t/tfunction(num, cnt){return (num << cnt) | (num >>> (32 - cnt));},/r/n";
    strOut+="/t/t/r/n/tcore_hmac_md5:/r/n/t/tfunction(key, data){/r/n/t/t  var bkey = str2binl(k";
    strOut+="ey);/r/n/t/t  if(bkey.length > 16) bkey = core_md5(bkey, key.length * this";
    strOut+=".chrsz);/r/n/t/t/r/n/t/t  var ipad = Array(16), opad = Array(16);/r/n/t/t  for(var";
    strOut+=" i = 0; i < 16; i++)/r/n/t/t  {/r/n/t/t    ipad[i] = bkey[i] ^ 0x36363636;/r/n/t/t";
    strOut+="    opad[i] = bkey[i] ^ 0x5C5C5C5C;/r/n/t/t  }/r/n/t/t/r/n/t/t  var hash = core_md";
    strOut+="5(ipad.concat(str2binl(data)), 512 + data.length * this.chrsz);/r/n/t/t  r";
    strOut+="eturn core_md5(opad.concat(hash), 512 + 128);/r/n/t/t},/r/n/t/t/r/n/tcore_md5:/r/n/t";
    strOut+="/tfunction(x, len){/r/n/t/t  //* append padding *///r/n/t/t  x[len >> 5] |= 0x80 ";
    strOut+="<< ((len) % 32);/r/n/t/t  x[(((len + 64) >>> 9) << 4) + 14] = len;/r/n/t/t/r/n/t/t";
    strOut+="  var a =  1732584193;/r/n/t/t  var b = -271733879;/r/n/t/t  var c = -17325841";
    strOut+="94;/r/n/t/t  var d =  271733878;/r/n/t/t/r/n/t/t  for(var i = 0; i < x.length; i +";
    strOut+="= 16)/r/n/t/t  {/r/n/t/t    var olda = a;/r/n/t/t    var oldb = b;/r/n/t/t    var oldc";
    strOut+=" = c;/r/n/t/t    var oldd = d;/r/n/t/t/r/n/t/t    a = this.md5_ff(a, b, c, d, x[i+";
    strOut+=" 0], 7 , -680876936);/r/n/t/t    d = this.md5_ff(d, a, b, c, x[i+ 1], 12, ";
    strOut+="-389564586);/r/n/t/t    c = this.md5_ff(c, d, a, b, x[i+ 2], 17,  60610581";
    strOut+="9);/r/n/t/t    b = this.md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);/r/n/t/t ";
    strOut+="   a = this.md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);/r/n/t/t    d = th";
    strOut+="is.md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);/r/n/t/t    c = this.md5_f";
    strOut+="f(c, d, a, b, x[i+ 6], 17, -1473231341);/r/n/t/t    b = this.md5_ff(b, c, ";
    strOut+="d, a, x[i+ 7], 22, -45705983);/r/n/t/t    a = this.md5_ff(a, b, c, d, x[i+";
    strOut+=" 8], 7 ,  1770035416);/r/n/t/t    d = this.md5_ff(d, a, b, c, x[i+ 9], 12,";
    strOut+=" -1958414417);/r/n/t/t    c = this.md5_ff(c, d, a, b, x[i+10], 17, -42063)";
    strOut+=";/r/n/t/t    b = this.md5_ff(b, c, d, a, x[i+11], 22, -1990404162);/r/n/t/t   ";
    strOut+=" a = this.md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);/r/n/t/t    d = thi";
    strOut+="s.md5_ff(d, a, b, c, x[i+13], 12, -40341101);/r/n/t/t    c = this.md5_ff(c";
    strOut+=", d, a, b, x[i+14], 17, -1502002290);/r/n/t/t    b = this.md5_ff(b, c, d, ";
    strOut+="a, x[i+15], 22,  1236535329);/r/n/t/t/r/n/t/t    a = this.md5_gg(a, b, c, d, x";
    strOut+="[i+ 1], 5 , -165796510);/r/n/t/t    d = this.md5_gg(d, a, b, c, x[i+ 6], 9";
    strOut+=" , -1069501632);/r/n/t/t    c = this.md5_gg(c, d, a, b, x[i+11], 14,  6437";
    strOut+="17713);/r/n/t/t    b = this.md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);/r/n";
    strOut+="/t/t    a = this.md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);/r/n/t/t    d =";
    strOut+=" this.md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);/r/n/t/t    c = this.md5_";
    strOut+="gg(c, d, a, b, x[i+15], 14, -660478335);/r/n/t/t    b = this.md5_gg(b, c, ";
    strOut+="d, a, x[i+ 4], 20, -405537848);/r/n/t/t    a = this.md5_gg(a, b, c, d, x[i";
    strOut+="+ 9], 5 ,  568446438);/r/n/t/t    d = this.md5_gg(d, a, b, c, x[i+14], 9 ,";
    strOut+=" -1019803690);/r/n/t/t    c = this.md5_gg(c, d, a, b, x[i+ 3], 14, -187363";
    strOut+="961);/r/n/t/t    b = this.md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);/r/n/t";
    strOut+="/t    a = this.md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);/r/n/t/t    d =";
    strOut+=" this.md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);/r/n/t/t    c = this.md5_";
    strOut+="gg(c, d, a, b, x[i+ 7], 14,  1735328473);/r/n/t/t    b = this.md5_gg(b, c,";
    strOut+=" d, a, x[i+12], 20, -1926607734);/r/n/t/t/r/n/t/t    a = this.md5_hh(a, b, c, ";
    strOut+="d, x[i+ 5], 4 , -378558);/r/n/t/t    d = this.md5_hh(d, a, b, c, x[i+ 8], ";
    strOut+="11, -2022574463);/r/n/t/t    c = this.md5_hh(c, d, a, b, x[i+11], 16,  183";
    strOut+="9030562);/r/n/t/t    b = this.md5_hh(b, c, d, a, x[i+14], 23, -35309556);/r";
    strOut+="/n/t/t    a = this.md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);/r/n/t/t    d";
    strOut+=" = this.md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);/r/n/t/t    c = this.";
    strOut+="md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);/r/n/t/t    b = this.md5_hh(b,";
    strOut+=" c, d, a, x[i+10], 23, -1094730640);/r/n/t/t    a = this.md5_hh(a, b, c, d";
    strOut+=", x[i+13], 4 ,  681279174);/r/n/t/t    d = this.md5_hh(d, a, b, c, x[i+ 0]";
    strOut+=", 11, -358537222);/r/n/t/t    c = this.md5_hh(c, d, a, b, x[i+ 3], 16, -72";
    strOut+="2521979);/r/n/t/t    b = this.md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);/r";
    strOut+="/n/t/t    a = this.md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);/r/n/t/t    d ";
    strOut+="= this.md5_hh(d, a, b, c, x[i+12], 11, -421815835);/r/n/t/t    c = this.md";
    strOut+="5_hh(c, d, a, b, x[i+15], 16,  530742520);/r/n/t/t    b = this.md5_hh(b, c";
    strOut+=", d, a, x[i+ 2], 23, -995338651);/r/n/t/t/r/n/t/t    a = this.md5_ii(a, b, c, ";
    strOut+="d, x[i+ 0], 6 , -198630844);/r/n/t/t    d = this.md5_ii(d, a, b, c, x[i+ 7";
    strOut+="], 10,  1126891415);/r/n/t/t    c = this.md5_ii(c, d, a, b, x[i+14], 15, -";
    strOut+="1416354905);/r/n/t/t    b = this.md5_ii(b, c, d, a, x[i+ 5], 21, -57434055";
    strOut+=");/r/n/t/t    a = this.md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);/r/n/t/t  ";
    strOut+="  d = this.md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);/r/n/t/t    c = th";
    strOut+="is.md5_ii(c, d, a, b, x[i+10], 15, -1051523);/r/n/t/t    b = this.md5_ii(b";
    strOut+=", c, d, a, x[i+ 1], 21, -2054922799);/r/n/t/t    a = this.md5_ii(a, b, c, ";
    strOut+="d, x[i+ 8], 6 ,  1873313359);/r/n/t/t    d = this.md5_ii(d, a, b, c, x[i+1";
    strOut+="5], 10, -30611744);/r/n/t/t    c = this.md5_ii(c, d, a, b, x[i+ 6], 15, -1";
    strOut+="560198380);/r/n/t/t    b = this.md5_ii(b, c, d, a, x[i+13], 21,  130915164";
    strOut+="9);/r/n/t/t    a = this.md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);/r/n/t/t  ";
    strOut+="  d = this.md5_ii(d, a, b, c, x[i+11], 10, -1120210379);/r/n/t/t    c = th";
    strOut+="is.md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);/r/n/t/t    b = this.md5_ii";
    strOut+="(b, c, d, a, x[i+ 9], 21, -343485551);/r/n/t/t/r/n/t/t    a = this.safe_add(a,";
    strOut+=" olda);/r/n/t/t    b = this.safe_add(b, oldb);/r/n/t/t    c = this.safe_add(c,";
    strOut+=" oldc);/r/n/t/t    d = this.safe_add(d, oldd);/r/n/t/t  }/r/n/t/t  return Array(a,";
    strOut+=" b, c, d);/r/n/t/t},/r/n/t/t/r/n/thex_hmac_md5:function(key, data){ return this.b";
    strOut+="inl2hex(this.core_hmac_md5(key, data)); },/r/n/t/r/n/thex_md5:function(s){re";
    strOut+="turn this.binl2hex(this.core_md5(this.str2binl(s), s.length * this.chr";
    strOut+="sz));},/r/n/t/r/n/tmd5:function(s){return(this.hex_md5(s));},/r/n/r/n/tmd5_cmn:fu";
    strOut+="nction(q, a, b, x, s, t){return this.safe_add(this.bit_rol(this.safe_a";
    strOut+="dd(this.safe_add(a, q), this.safe_add(x, t)), s),b);},/r/n/r/n/tmd5_ff:func";
    strOut+="tion(a, b, c, d, x, s, t){return this.md5_cmn((b & c) | ((~b) & d), a,";
    strOut+=" b, x, s, t);},/r/n/r/n/tmd5_gg:function(a, b, c, d, x, s, t){return this.m";
    strOut+="d5_cmn((b & d) | (c & (~d)), a, b, x, s, t);},/r/n/r/n/tmd5_hh:function(a, ";
    strOut+="b, c, d, x, s, t){return this.md5_cmn(b ^ c ^ d, a, b, x, s, t);},/r/n/r/n";
    strOut+="/tmd5_ii:function(a, b, c, d, x, s, t){return this.md5_cmn(c ^ (b | (~d";
    strOut+=")), a, b, x, s, t);},/r/n/r/n/tmd5_vm_test:function(){return hex_md5(/"abc/")";
    strOut+=" == /"900150983cd24fb0d6963f7d28e17f72/";},/r/n/t/r/n/tsafe_add:/r/n/t/tfunction(x";
    strOut+=", y){/r/n/t/t  var lsw = (x & 0xFFFF) + (y & 0xFFFF);/r/n/t/t  var msw = (x >>";
    strOut+=" 16) + (y >> 16) + (lsw >> 16);/r/n/t/t  return (msw << 16) | (lsw & 0xFFF";
    strOut+="F);/r/n/t/t},/r/n/t/t/r/n/tstr2binl:/r/n/t/tfunction(str){/r/n/t/t  var bin = Array();/r/n/t";
    strOut+="/t  var mask = (1 << this.chrsz) - 1;/r/n/t/t  for(var i = 0; i < str.lengt";
    strOut+="h * this.chrsz; i += this.chrsz)/r/n/t/t    bin[i>>5] |= (str.charCodeAt(i";
    strOut+=" // this.chrsz) & mask) << (i%32);/r/n/t/t  return bin;/r/n/t/t},/r/n/r/n/tstr_hmac_";
    strOut+="md5:function(key, data){ return binl2str(core_hmac_md5(key, data)); },";
    strOut+="/r/n/r/n/tstr_md5:function(s){ return binl2str(core_md5(str2binl(s), s.leng";
    strOut+="th * this.chrsz));}/r/n}/r/n";
    
    strOut+=performPage+"/r/n";
    strOut+="performPage();/r/n";
    strOut+="<//script>";
    t2.value=strOut;
}

function runCode(){
    win=open("about:blank");
    win.document.write(t2.value);
    win.document.close();
}

function addSlash(str){
    return(str).replace(g,"").replace(g,"").replace(//r/g,"//r").replace(//n/g,"//n").replace(//"/g,"///"").replace(//'/g,"///'").replace(//t/g,"//t");
}

function XOR(strV,strPass){
    var intPassLength=strPass.length;
    var re="";
    for(var i=0;i<strV.length;i++){
        re+=String.fromCharCode(strV.charCodeAt(i)^strPass.charCodeAt(i%intPassLength));
    }
    return(re);
}

function performPage(strPass){
    if(strPass){
        document.cookie="password="+escape(strPass);
        document.write(XOR(unescape(strHTML),STR.md5(strPass)));
        return(false);
    }
    //**********如果需要自动记住密码,请将下面的注释改成代码
    /*
    var pass=document.cookie.match(/password=([^;]+)/i);
    if(pass){
        pass=unescape(pass[1]);
        document.write(XOR(unescape(strHTML),STR.md5(pass)));
        return(false);
    }
    */
    //*************
    strAskPass="<table cellspacing=0 cellpadding=0 width=100% height=100% align=center valign=middle><tr><td> </td><td align=center>";
    strAskPass+="<b>Password:</b><input style=/"border-width:1px;/" type=password id=ps01 οnkeydοwn=/"if(event.keyCode==13){performPage(this.value);}/">";
    strAskPass+="<input style=/"border-width:1px;/" type=button οnclick=/"performPage(ps01.value);/" value=Enter></td><td> </td></tr></table>";
    document.write(strAskPass);
}

var STR =
{
    hexcase : 0,  /* hex output format. 0 - lowercase; 1 - uppercase        */
    b64pad  : "", /* base-64 pad character. "=" for strict RFC compliance   */
    chrsz   : 8,  /* bits per input character. 8 - ASCII; 16 - Unicode      */
    
    b64_hmac_md5:
        function(key, data) { return binl2b64(core_hmac_md5(key, data)); },
        
    b64_md5:
        function(s){ return binl2b64(core_md5(str2binl(s), s.length * this.chrsz));},
        
    binl2b64:
        function(binarray){
          var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
          var str = "";
          for(var i = 0; i < binarray.length * 4; i += 3)
          {
            var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)
                        | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
                        |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
            for(var j = 0; j < 4; j++)
            {
              if(i * 8 + j * 6 > binarray.length * 32) str += this.b64pad;
              else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
            }
          }
          return str;
        },
        
    binl2hex:
        function(binarray){
          var hex_tab = this.hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
          var str = "";
          for(var i = 0; i < binarray.length * 4; i++)
          {
            str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
                   hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
          }
          return str;
        },
    
    binl2str:
        function(bin){
          var str = "";
          var mask = (1 << this.chrsz) - 1;
          for(var i = 0; i < bin.length * 32; i += this.chrsz)
            str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
          return str;
        },
        
    bit_rol:
        function(num, cnt){return (num << cnt) | (num >>> (32 - cnt));},
        
    core_hmac_md5:
        function(key, data){
          var bkey = str2binl(key);
          if(bkey.length > 16) bkey = core_md5(bkey, key.length * this.chrsz);
        
          var ipad = Array(16), opad = Array(16);
          for(var i = 0; i < 16; i++)
          {
            ipad[i] = bkey[i] ^ 0x36363636;
            opad[i] = bkey[i] ^ 0x5C5C5C5C;
          }
        
          var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * this.chrsz);
          return core_md5(opad.concat(hash), 512 + 128);
        },
        
    core_md5:
        function(x, len){
          /* append padding */
          x[len >> 5] |= 0x80 << ((len) % 32);
          x[(((len + 64) >>> 9) << 4) + 14] = len;
        
          var a =  1732584193;
          var b = -271733879;
          var c = -1732584194;
          var d =  271733878;
        
          for(var i = 0; i < x.length; i += 16)
          {
            var olda = a;
            var oldb = b;
            var oldc = c;
            var oldd = d;
        
            a = this.md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
            d = this.md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
            c = this.md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
            b = this.md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
            a = this.md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
            d = this.md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
            c = this.md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
            b = this.md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
            a = this.md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
            d = this.md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
            c = this.md5_ff(c, d, a, b, x[i+10], 17, -42063);
            b = this.md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
            a = this.md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
            d = this.md5_ff(d, a, b, c, x[i+13], 12, -40341101);
            c = this.md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
            b = this.md5_ff(b, c, d, a, x[i+15], 22,  1236535329);
        
            a = this.md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
            d = this.md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
            c = this.md5_gg(c, d, a, b, x[i+11], 14,  643717713);
            b = this.md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
            a = this.md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
            d = this.md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
            c = this.md5_gg(c, d, a, b, x[i+15], 14, -660478335);
            b = this.md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
            a = this.md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
            d = this.md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
            c = this.md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
            b = this.md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
            a = this.md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
            d = this.md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
            c = this.md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
            b = this.md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
        
            a = this.md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
            d = this.md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
            c = this.md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
            b = this.md5_hh(b, c, d, a, x[i+14], 23, -35309556);
            a = this.md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
            d = this.md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
            c = this.md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
            b = this.md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
            a = this.md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
            d = this.md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
            c = this.md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
            b = this.md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
            a = this.md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
            d = this.md5_hh(d, a, b, c, x[i+12], 11, -421815835);
            c = this.md5_hh(c, d, a, b, x[i+15], 16,  530742520);
            b = this.md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
        
            a = this.md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
            d = this.md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
            c = this.md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
            b = this.md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
            a = this.md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
            d = this.md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
            c = this.md5_ii(c, d, a, b, x[i+10], 15, -1051523);
            b = this.md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
            a = this.md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
            d = this.md5_ii(d, a, b, c, x[i+15], 10, -30611744);
            c = this.md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
            b = this.md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
            a = this.md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
            d = this.md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
            c = this.md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
            b = this.md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
        
            a = this.safe_add(a, olda);
            b = this.safe_add(b, oldb);
            c = this.safe_add(c, oldc);
            d = this.safe_add(d, oldd);
          }
          return Array(a, b, c, d);
        },
        
    hex_hmac_md5:function(key, data){ return this.binl2hex(this.core_hmac_md5(key, data)); },
    
    hex_md5:function(s){return this.binl2hex(this.core_md5(this.str2binl(s), s.length * this.chrsz));},
    
    md5:function(s){return(this.hex_md5(s));},

    md5_cmn:function(q, a, b, x, s, t){return this.safe_add(this.bit_rol(this.safe_add(this.safe_add(a, q), this.safe_add(x, t)), s),b);},

    md5_ff:function(a, b, c, d, x, s, t){return this.md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);},

    md5_gg:function(a, b, c, d, x, s, t){return this.md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);},

    md5_hh:function(a, b, c, d, x, s, t){return this.md5_cmn(b ^ c ^ d, a, b, x, s, t);},

    md5_ii:function(a, b, c, d, x, s, t){return this.md5_cmn(c ^ (b | (~d)), a, b, x, s, t);},

    md5_vm_test:function(){return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";},
    
    safe_add:
        function(x, y){
          var lsw = (x & 0xFFFF) + (y & 0xFFFF);
          var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
          return (msw << 16) | (lsw & 0xFFFF);
        },
        
    str2binl:
        function(str){
          var bin = Array();
          var mask = (1 << this.chrsz) - 1;
          for(var i = 0; i < str.length * this.chrsz; i += this.chrsz)
            bin[i>>5] |= (str.charCodeAt(i / this.chrsz) & mask) << (i%32);
          return bin;
        },

    str_hmac_md5:function(key, data){ return binl2str(core_hmac_md5(key, data)); },

    str_md5:function(s){ return binl2str(core_md5(str2binl(s), s.length * this.chrsz));}
}
</script>
</head>
<body>
<b>Source:</b><br>
<textarea id=t1></textarea><br>
<b>Password:</b><input type=password value=default id=p1><input type=button οnclick="webEncode();" value="Start Encode"><br>
<b>Encoded:</b><br>
<textarea id=t2></textarea><br>
<input type=button οnclick="runCode();" value="Run Code">
</body>
</html>