介绍几种加密方式~

govyvy

介绍几种加密方式~

来自：MACD论坛(bbs.macd.cn) 作者：govyvy 浏览：3400 回复：5

无论在日常工作～或股票交易中～都少不了为了某个关键文件～做安全性的加密～
以下介绍几种～
Base64 编码加密机制原代码

<script language=javascript>
var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = new Array(
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
    52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
    -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
    -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);
function base64encode(str) &leftsign;
    var out, i, len;
    var c1, c2, c3;
    len = str.length;
    i = 0;
    out = "";
    while(i < len) &leftsign;
    c1 = str.charCodeAt(i++) & 0xff;
    if(i == len)
    &leftsign;
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt((c1 & 0x3) << 4);
        out += "==";
        break;
    &rightsign;
    c2 = str.charCodeAt(i++);
    if(i == len)
    &leftsign;
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) &line; ((c2 & 0xF0) >> 4));
        out += base64EncodeChars.charAt((c2 & 0xF) << 2);
        out += "=";
        break;
    &rightsign;
    c3 = str.charCodeAt(i++);
    out += base64EncodeChars.charAt(c1 >> 2);
    out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) &line; ((c2 & 0xF0) >> 4));
    out += base64EncodeChars.charAt(((c2 & 0xF) << 2) &line; ((c3 & 0xC0) >>6));
    out += base64EncodeChars.charAt(c3 & 0x3F);
    &rightsign;
    return out;
&rightsign;
function base64decode(str) &leftsign;
    var c1, c2, c3, c4;
    var i, len, out;
    len = str.length;
    i = 0;
    out = "";
    while(i < len) &leftsign;
    /* c1 */
    do &leftsign;
        c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
    &rightsign; while(i < len && c1 == -1);
    if(c1 == -1)
        break;
    /* c2 */
    do &leftsign;
        c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
    &rightsign; while(i < len && c2 == -1);
    if(c2 == -1)
        break;
    out += String.fromCharCode((c1 << 2) &line; ((c2 & 0x30) >> 4));
    /* c3 */
    do &leftsign;
        c3 = str.charCodeAt(i++) & 0xff;
        if(c3 == 61)
        return out;
        c3 = base64DecodeChars[c3];
    &rightsign; while(i < len && c3 == -1);
    if(c3 == -1)
        break;
    out += String.fromCharCode(((c2 & 0XF) << 4) &line; ((c3 & 0x3C) >> 2));
    /* c4 */
    do &leftsign;
        c4 = str.charCodeAt(i++) & 0xff;
        if(c4 == 61)
        return out;
        c4 = base64DecodeChars[c4];
    &rightsign; while(i < len && c4 == -1);
    if(c4 == -1)
        break;
    out += String.fromCharCode(((c3 & 0x03) << 6) &line; c4);
    &rightsign;
    return out;
&rightsign;
function utf16to8(str) &leftsign;
    var out, i, len, c;
    out = "";
    len = str.length;
    for(i = 0; i < len; i++) &leftsign;
    c = str.charCodeAt(i);
    if ((c >= 0x0001) && (c <= 0x007F)) &leftsign;
        out += str.charAt(i);
    &rightsign; else if (c > 0x07FF) &leftsign;
        out += String.fromCharCode(0xE0 &line; ((c >> 12) & 0x0F));
        out += String.fromCharCode(0x80 &line; ((c >>  6) & 0x3F));
        out += String.fromCharCode(0x80 &line; ((c >>  0) & 0x3F));
    &rightsign; else &leftsign;
        out += String.fromCharCode(0xC0 &line; ((c >>  6) & 0x1F));
        out += String.fromCharCode(0x80 &line; ((c >>  0) & 0x3F));
    &rightsign;
    &rightsign;
    return out;
&rightsign;
function utf8to16(str) &leftsign;
    var out, i, len, c;
    var char2, char3;
    out = "";
    len = str.length;
    i = 0;
    while(i < len) &leftsign;
    c = str.charCodeAt(i++);
    switch(c >> 4)
    &leftsign;
      case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
        // 0xxxxxxx
        out += str.charAt(i-1);
        break;
      case 12: case 13:
        // 110x xxxx   10xx xxxx
        char2 = str.charCodeAt(i++);
        out += String.fromCharCode(((c & 0x1F) << 6) &line; (char2 & 0x3F));
        break;
      case 14:
        // 1110 xxxx  10xx xxxx  10xx xxxx
        char2 = str.charCodeAt(i++);
        char3 = str.charCodeAt(i++);
        out += String.fromCharCode(((c & 0x0F) << 12) &line;
                       ((char2 & 0x3F) << 6) &line;
                       ((char3 & 0x3F) << 0));
        break;
    &rightsign;
    &rightsign;
    return out;
&rightsign;

function doit() &leftsign;
    var f = document.f
    f.output.value = base64encode(utf16to8(f.source.value))
    f.decode.value = utf8to16(base64decode(f.output.value))
&rightsign;
</script>
<H1>Base64</H1>
<FORM NAME="f">
原码<BR>
<TEXTAREA NAME="source" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
Base64 encode<BR>
<TEXTAREA NAME="output" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
Base64 decode<BR>
<TEXTAREA NAME="decode" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
<INPUT TYPE=BUTTON VALUE="转换" >
</FORM>

govyvy

md5的加密机制原代码


<input id=test value=sina>
<input type=button value=md5 >
<p>
<textarea style="font-family:fixedsys;font-size:12px;border:1px inset #d3d6d9" cols=40 rows=10 id=ye></textarea>
<script>
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */
/*
* These are the functions you'll usually want to call
* They take string arguments and return either hex or base-64 encoded strings
*/
function hex_md5(s)&leftsign; return binl2hex(core_md5(str2binl(s), s.length * chrsz));&rightsign;
function b64_md5(s)&leftsign; return binl2b64(core_md5(str2binl(s), s.length * chrsz));&rightsign;
function hex_hmac_md5(key, data) &leftsign; return binl2hex(core_hmac_md5(key, data)); &rightsign;
function b64_hmac_md5(key, data) &leftsign; return binl2b64(core_hmac_md5(key, data)); &rightsign;
/* Backwards compatibility - same as hex_md5() */
function calcMD5(s)&leftsign; return binl2hex(core_md5(str2binl(s), s.length * chrsz));&rightsign;
/*
* Perform a simple self-test to see if the VM is working
*/
function md5_vm_test()
&leftsign;
  return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
&rightsign;
/*
* Calculate the MD5 of an array of little-endian words, and a bit length
*/
function core_md5(x, len)
&leftsign;
  /* append padding */
  x[len >> 5] &line;= 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)
  &leftsign;
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);
    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  &rightsign;
  return Array(a, b, c, d);
  
&rightsign;
/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5_cmn(q, a, b, x, s, t)
&leftsign;
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
&rightsign;
function md5_ff(a, b, c, d, x, s, t)
&leftsign;
  return md5_cmn((b & c) &line; ((~b) & d), a, b, x, s, t);
&rightsign;
function md5_gg(a, b, c, d, x, s, t)
&leftsign;
  return md5_cmn((b & d) &line; (c & (~d)), a, b, x, s, t);
&rightsign;
function md5_hh(a, b, c, d, x, s, t)
&leftsign;
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
&rightsign;
function md5_ii(a, b, c, d, x, s, t)
&leftsign;
  return md5_cmn(c ^ (b &line; (~d)), a, b, x, s, t);
&rightsign;
/*
* Calculate the HMAC-MD5, of a key and some data
*/
function core_hmac_md5(key, data)
&leftsign;
  var bkey = str2binl(key);
  if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);
  var ipad = Array(16), opad = Array(16);
  for(var i = 0; i < 16; i++)
  &leftsign;
    ipad = bkey ^ 0x36363636;
    opad = bkey ^ 0x5C5C5C5C;
  &rightsign;
  var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
  return core_md5(opad.concat(hash), 512 + 128);
&rightsign;
/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safe_add(x, y)
&leftsign;
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) &line; (lsw & 0xFFFF);
&rightsign;
/*
* Bitwise rotate a 32-bit number to the left.
*/
function bit_rol(num, cnt)
&leftsign;
  return (num << cnt) &line; (num >>> (32 - cnt));
&rightsign;
/*
* Convert a string to an array of little-endian words
* If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
*/
function str2binl(str)
&leftsign;
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] &line;= (str.charCodeAt(i / chrsz) & mask) << (i%32);
  return bin;
&rightsign;
/*
* Convert an array of little-endian words to a hex string.
*/
function binl2hex(binarray)
&leftsign;
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  &leftsign;
    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
  &rightsign;
  return str;
&rightsign;
/*
* Convert an array of little-endian words to a base-64 string
*/
function binl2b64(binarray)
&leftsign;
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i += 3)
  &leftsign;
    var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)
                &line; (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
                &line;  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
    for(var j = 0; j < 4; j++)
    &leftsign;
      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
      else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
    &rightsign;
  &rightsign;
  return str;
&rightsign;
</script>

govyvy

带密钥的加解密原代码

Welcome to jzzy.com

govyvy

带密钥的加解密原代码





<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function encrypt(str, pwd) &leftsign;
  if(pwd == null &line;&line; pwd.length <= 0) &leftsign;
    alert("Please enter a password with which to encrypt the message.");
    return null;
  &rightsign;
  var prand = "";
  for(var i=0; i<pwd.length; i++) &leftsign;
    prand += pwd.charCodeAt(i).toString();
  &rightsign;
  var sPos = Math.floor(prand.length / 5);
  var mult = parseInt(prand.charAt(sPos) + prand.charAt(sPos*2) + prand.charAt(sPos*3) + prand.charAt(sPos*4) + prand.charAt(sPos*5));
  var incr = Math.ceil(pwd.length / 2);
  var modu = Math.pow(2, 31) - 1;
  if(mult < 2) &leftsign;
    alert("Algorithm cannot find a suitable hash. Please choose a different password. \nPossible considerations are to choose a more complex or longer password.");
    return null;
  &rightsign;
  var salt = Math.round(Math.random() * 1000000000) % 100000000;
  prand += salt;
  while(prand.length > 10) &leftsign;
    prand = (parseInt(prand.substring(0, 10)) + parseInt(prand.substring(10, prand.length))).toString();
  &rightsign;
  prand = (mult * prand + incr) % modu;
  var enc_chr = "";
  var enc_str = "";
  for(var i=0; i<str.length; i++) &leftsign;
    enc_chr = parseInt(str.charCodeAt(i) ^ Math.floor((prand / modu) * 255));
    if(enc_chr < 16) &leftsign;
      enc_str += "0" + enc_chr.toString(16);
    &rightsign; else enc_str += enc_chr.toString(16);
    prand = (mult * prand + incr) % modu;
  &rightsign;
  salt = salt.toString(16);
  while(salt.length < 8)salt = "0" + salt;
  enc_str += salt;
  return enc_str;
&rightsign;
function decrypt(str, pwd) &leftsign;
  if(str == null &line;&line; str.length < 8) &leftsign;
    alert("A salt value could not be extracted from the encrypted message because it's length is too short. The message cannot be decrypted.");
    return;
  &rightsign;
  if(pwd == null &line;&line; pwd.length <= 0) &leftsign;
    alert("Please enter a password with which to decrypt the message.");
    return;
  &rightsign;
  var prand = "";
  for(var i=0; i<pwd.length; i++) &leftsign;
    prand += pwd.charCodeAt(i).toString();
  &rightsign;
  var sPos = Math.floor(prand.length / 5);
  var mult = parseInt(prand.charAt(sPos) + prand.charAt(sPos*2) + prand.charAt(sPos*3) + prand.charAt(sPos*4) + prand.charAt(sPos*5));
  var incr = Math.round(pwd.length / 2);
  var modu = Math.pow(2, 31) - 1;
  var salt = parseInt(str.substring(str.length - 8, str.length), 16);
  str = str.substring(0, str.length - 8);
  prand += salt;
  while(prand.length > 10) &leftsign;
    prand = (parseInt(prand.substring(0, 10)) + parseInt(prand.substring(10, prand.length))).toString();
  &rightsign;
  prand = (mult * prand + incr) % modu;
  var enc_chr = "";
  var enc_str = "";
  for(var i=0; i<str.length; i+=2) &leftsign;
    enc_chr = parseInt(parseInt(str.substring(i, i+2), 16) ^ Math.floor((prand / modu) * 255));
    enc_str += String.fromCharCode(enc_chr);
    prand = (mult * prand + incr) % modu;
  &rightsign;
  return enc_str;
&rightsign;
//  End -->
</script>
<form name="box"><center>
<table cellpadding=0 cellspacing=0 border=0><tr><td colspan=3>
<textarea cols=40 rows=5 wrap=virtual name=ipt>Welcome to jzzy.com</textarea>
</td></tr>
<tr height=50><td valign="top">
<input type="button"  value="加密">
</td><td align="center" valign="center">
<input type="text" name="pwd" value="password">
</td><td align="right" valign="bottom">
<input type="button"  value="解密">
</td></tr>
<tr><td colspan=3>
<textarea cols=40 rows=5 wrap=virtual name=opt></textarea>
</td></tr></table>
</center>
</form>

govyvy

escape()函数加、解密文本原代码



有一种加密的办法是采用javascript的escape()函数，把某些符号、汉字等变成乱码，以达到迷惑人的目的。解密这种代码的办法是采用其反函数加以还原。下面是一个经过加密的例子：
<font color=red>
%3Chtml%3E%3Cbody%20bgcolor%3D%22white%22%3E%3Cp%3E%u8FD9%u662F%u4F8B%u5B50%uFF01%uFF01%uFF1A%uFF09%3C/p%3E%3C/body%3E%3C/html%3E</font>
这种文件最好解密，一看就明白，关键是unescape()函数起了还原源代码的作用。要想看到加密前的代码是什么样子，可以用下面的办法(把字符复制到文本框中，然后解密就可以看到真相了)：
<SCRIPT LANGUAGE="Javascript">
var Words ="%3Chtml%3E%3Cbody%20bgcolor%3D%22white%22%3E%3Cp%3E%u8FD9%u662F%u4F8B%u5B50%uFF01%uFF01%uFF1A%uFF09%3C/p%3E%3C/body%3E%3C/html%3E"
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password()&leftsign;
document.pw.txtpw.value=NewWords;
&rightsign;
</SCRIPT>
<form name=pw>
<input type=button  value="解密">
<br>
<textarea name="txtpw" cols="80" rows="20"></textarea>
</form>

govyvy

HTML脚本加、解密原代码





<html>
<head>
<meta http-equiv="Content-Type" c>
<title>It365cn.com</title>
<style type="text/css">
<!--
.coolalpha &leftsign;behavior:url(eyun_alpha.htc);cursor:hand;filter:alpha(opacity=50);&rightsign;
-->
</style>
</head>
<body leftmargin="0" topmargin="0">
<SCRIPT language=JavaScript><!--
var i=0;
var ie=(document.all)?1:0;
var ns=(document.layers)?1:0;
function initStyleElements() /* Styles for Buttons Init */
&leftsign;
var c = document.pad;
if (ie)
&leftsign;
//c.text.style.backgroundColor="#DDDDDD";
c.compileIt.style.backgroundColor="#C0C0A8";
c.compileIt.style.cursor="hand";
c.select.style.backgroundColor="#C0C0A8";
c.select.style.cursor="hand";
c.view.style.backgroundColor="#C0C0A8";
c.view.style.cursor="hand";
c.retur.style.backgroundColor="#C0C0A8";
c.retur.style.cursor="hand";
c.clear.style.backgroundColor="#C0C0A8";
c.clear.style.cursor="hand";
&rightsign;
else return;
&rightsign;
/* Buttons Enlightment of "Compilation" panel */
function FocusOn(what)
&leftsign;
if (ie) what.style.backgroundColor = '#EBEBEB';
else return;
&rightsign;
function FocusOff(what)
&leftsign;
if (ie) what.style.backgroundColor = '#DDDDDD';
else return;
&rightsign;
/* Buttons Enlightment of "Compilation" panel */
function generate() /* Generation of "Compilation" */
&leftsign;
code = document.pad.text.value;
if (code)
&leftsign;
document.pad.text.value='Compiling...Please wait!';
setTimeout("compile()",1000);
&rightsign;
else alert('First enter something to compile and then press CompileIt')
&rightsign;
function compile() /* The "Compilation" */
&leftsign;
document.pad.text.value='';
compilation=escape(code);
document.pad.text.value="<script>\n<!--\ndocument.write(unescape(\""+compilation+"\"));\n//-->\n<\/script>";
i++;
if (i=1) alert("Page compiled 1 time!");
else alert("Page compiled "+i+" times!");
&rightsign;
function selectCode() /* Selecting "Compilation" for Copying */
&leftsign;
if(document.pad.text.value.length>0)
&leftsign;
document.pad.text.focus();
document.pad.text.select();
&rightsign;
else alert('Nothing for be selected!')
&rightsign;
function preview() /* Preview for the "Compilation" */
&leftsign;
if(document.pad.text.value.length>0)
&leftsign;
pr=window.open("","Preview","scrollbars=1,menubar=1,status=1,width=700,height=320,left=50,top=110");
pr.document.write(document.pad.text.value);
&rightsign;
else alert('Nothing for be previewed!')
&rightsign;
function uncompile() /* Decompiling a "Compilation" */
&leftsign;
if (document.pad.text.value.length>0)
&leftsign;
source=unescape(document.pad.text.value);
document.pad.text.value=""+source+"";
&rightsign;
else alert('You need compiled code to uncompile it!')
&rightsign;
// -->
</SCRIPT>
<table width="650" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td bgcolor="#3568AC"></td>
    <td width="87" height="1"></td>
    <td width="460" height="1" bgcolor="#3568AC"></td>
    <td width="100" height="1"></td>
    <td bgcolor="#3568AC"></td>
  </tr>
  <tr>
    <td bgcolor="#3568AC" height="6"></td>
    <td height="8" colspan="3" class="cn"></td>
    <td bgcolor="#3568AC" height="6"></td>
  </tr>
  <tr>
    <td bgcolor="#3568AC"></td>
    <td height="296" colspan="3" align="center" class="gp">
<FORM name=pad method=post align="center">
<TEXTAREA name=text rows=11 cols=50></TEXTAREA>
<BR><BR>
<INPUT  onclick=generate()  type=button value=加密 name=compileIt>
<INPUT  onclick=selectCode()  type=button value=全选 name=select>
<INPUT  onclick=preview()  type=button value=预览 name=view>
<INPUT  onclick=uncompile()  type=button value=解密 name=retur>
<INPUT   type=reset value=清除 name=clear></FORM>   
    </td>
    <td bgcolor="#3568AC"></td>
  </tr>
  <tr>
    <td bgcolor="#3568AC" height="6"></td>
    <td height="8" colspan="3" class="cn"></td>
    <td bgcolor="#3568AC" height="6"></td>
  </tr>
  <tr>
    <td bgcolor="#3568AC"></td>
    <td colspan="3" align="center"> <input type="button" name="Submit2" value="关闭窗口"  style="cursor:hand"
>
    </td>
    <td bgcolor="#3568AC"></td>
  </tr>
  <tr>
    <td bgcolor="#3568AC" height="6"></td>
    <td height="8" colspan="3" class="cn"></td>
    <td bgcolor="#3568AC" height="6"></td>
  </tr>
</table>
</body>
</html>