网页代码常用加解密

代码如下:

<html>
<head>
<title>网页代码常用加解密</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<SCRIPT LANGUAGE="JavaScript">
<!--
var Words;
function SetWords(word)
{
	Words=word.value;
}

function SetNewWords(form)
{
	if (form1.Word.value != "")
	{
		var NewWords;
		NewWords=unescape(Words);
		form.NewWords.value=NewWords;
	}
}

function SetNewWords1(form)
{
	if (form1.Word.value != "")
	{
		var NewWords;
		NewWords=escape(Words);
		form.NewWords.value=NewWords;
	}
}

function screncode(s,l)
{
	if (form1.Word.value != "")
	{
		enc=new ActiveXObject("Scripting.Encoder");
		return enc.EncodeScriptFile("."+l,s,0,l+"cript");
	}
	else
	{
		return "";
	}
}

var STATE_COPY_INPUT=100
var STATE_READLEN=101
var STATE_DECODE=102
var STATE_UNESCAPE=103

var pick_encoding=new Array(
	1,2,0,1,2,0,2,0,0,2,0,2,1,0,2,0,
	1,0,2,0,1,1,2,0,0,2,1,0,2,0,0,2,
	1,1,0,2,0,2,0,1,0,1,1,2,0,1,0,2,
	1,0,2,0,1,1,2,0,0,1,1,2,0,1,0,2
	)

var rawData=new Array(
	0x64,0x37,0x69,0x50,0x7E,0x2C,0x22,0x5A,0x65,0x4A,0x45,0x72,
	0x61,0x3A,0x5B,0x5E,0x79,0x66,0x5D,0x59,0x75,0x5B,0x27,0x4C,
	0x42,0x76,0x45,0x60,0x63,0x76,0x23,0x62,0x2A,0x65,0x4D,0x43,
	0x5F,0x51,0x33,0x7E,0x53,0x42,0x4F,0x52,0x20,0x52,0x20,0x63,
	0x7A,0x26,0x4A,0x21,0x54,0x5A,0x46,0x71,0x38,0x20,0x2B,0x79,
	0x26,0x66,0x32,0x63,0x2A,0x57,0x2A,0x58,0x6C,0x76,0x7F,0x2B,
	0x47,0x7B,0x46,0x25,0x30,0x52,0x2C,0x31,0x4F,0x29,0x6C,0x3D,
	0x69,0x49,0x70,0x3F,0x3F,0x3F,0x27,0x78,0x7B,0x3F,0x3F,0x3F,
	0x67,0x5F,0x51,0x3F,0x3F,0x3F,0x62,0x29,0x7A,0x41,0x24,0x7E,
	0x5A,0x2F,0x3B,0x66,0x39,0x47,0x32,0x33,0x41,0x73,0x6F,0x77,
	0x4D,0x21,0x56,0x43,0x75,0x5F,0x71,0x28,0x26,0x39,0x42,0x78,
	0x7C,0x46,0x6E,0x53,0x4A,0x64,0x48,0x5C,0x74,0x31,0x48,0x67,
	0x72,0x36,0x7D,0x6E,0x4B,0x68,0x70,0x7D,0x35,0x49,0x5D,0x22,
	0x3F,0x6A,0x55,0x4B,0x50,0x3A,0x6A,0x69,0x60,0x2E,0x23,0x6A,
	0x7F,0x09,0x71,0x28,0x70,0x6F,0x35,0x65,0x49,0x7D,0x74,0x5C,
	0x24,0x2C,0x5D,0x2D,0x77,0x27,0x54,0x44,0x59,0x37,0x3F,0x25,
	0x7B,0x6D,0x7C,0x3D,0x7C,0x23,0x6C,0x43,0x6D,0x34,0x38,0x28,
	0x6D,0x5E,0x31,0x4E,0x5B,0x39,0x2B,0x6E,0x7F,0x30,0x57,0x36,
	0x6F,0x4C,0x54,0x74,0x34,0x34,0x6B,0x72,0x62,0x4C,0x25,0x4E,
	0x33,0x56,0x30,0x56,0x73,0x5E,0x3A,0x68,0x73,0x78,0x55,0x09,
	0x57,0x47,0x4B,0x77,0x32,0x61,0x3B,0x35,0x24,0x44,0x2E,0x4D,
	0x2F,0x64,0x6B,0x59,0x4F,0x44,0x45,0x3B,0x21,0x5C,0x2D,0x37,
	0x68,0x41,0x53,0x36,0x61,0x58,0x58,0x7A,0x48,0x79,0x22,0x2E,
	0x09,0x60,0x50,0x75,0x6B,0x2D,0x38,0x4E,0x29,0x55,0x3D,0x3F
)

var transformed=new Array()
for (var i=0; i<3; i++) transformed[i]=new Array()
for (var i=31; i<=126; i++) for (var j=0; j<3; j++) transformed[j][rawData[(i-31) * 3+j]]=(i==31)?9:i
	var digits=new Array()
for (var i=0; i<26; i++)
{
	digits["A".charCodeAt(0)+i]=i
	digits["a".charCodeAt(0)+i]=i+26
}
for (var i=0; i<10; i++) digits["0".charCodeAt(0)+i]=i+52
digits[0x2b]=62
digits[0x2f]=63

function unescape2(char)
{
	var escapes="#&!*$"
	var escaped="\r\n<>@"
		if (char.charCodeAt(0) > 126) return char
	if (escapes.indexOf(char)!=-1) return escaped.substr(escapes.indexOf(char),1)
	return "?"
}

function decodeBase64(string)
{
	var val=0
	val+=(digits[string.substr(0,1).charCodeAt(0)]<<2)
	val+=(digits[string.substr(1,1).charCodeAt(0)]>>4)
	val+=(digits[string.substr(1,1).charCodeAt(0)]&0xf)<<12
	val+=((digits[string.substr(2,1).charCodeAt(0)]>>2)<<8)
	val+=((digits[string.substr(2,1).charCodeAt(0)]&0x3)<<22)
	val+=(digits[string.substr(3,1).charCodeAt(0)]<<16)
	return val
}

function strdec(encodingString)
{
	var marker="#@~^"
	var stringIndex=0
	var scriptIndex=-1
	var unEncodingIndex=0
	var char=null
	var encodingLength=unEncodinglength=0
	var state=STATE_COPY_INPUT
	var unEncodingString=""
	var re,arr
		while(state){
		switch (state)
		{
			case (STATE_COPY_INPUT):
				scriptIndex=encodingString.indexOf(marker,stringIndex)
				if (scriptIndex!=-1){
					unEncodingString+=encodingString.substring(stringIndex,scriptIndex)
					scriptIndex+=marker.length
					state=STATE_READLEN
				}else{
					stringIndex=stringIndex==0?0:stringIndex
					unEncodingString+=encodingString.substr(stringIndex,encodingString.length)
					state=0
				}
			break
			case (STATE_READLEN):
				encodingLength=encodingString.substr(scriptIndex,6)
				unEncodinglength=decodeBase64(encodingLength)
				scriptIndex+=(6+"==".length)
				state=STATE_DECODE
				break
			case (STATE_DECODE):
				if (!unEncodinglength){
					stringIndex=scriptIndex+"DQgAAA==^#~@".length
					unEncodingIndex=0
					state=STATE_COPY_INPUT
					break
				}
				char=encodingString.substr(scriptIndex,1)
				if (char=="@") state=STATE_UNESCAPE
				else{
					if (char.charCodeAt(0)<0xFF){
						unEncodingString+=String.fromCharCode(transformed[pick_encoding[unEncodingIndex%64]][char.charCodeAt(0)])
						unEncodingIndex++
					}else{
						unEncodingString+=char
					} 
					scriptIndex++
					unEncodinglength--
					break
				}
			case STATE_UNESCAPE:
				unEncodingString+=unescape2(encodingString.substr(++scriptIndex,1))
				scriptIndex++; unEncodinglength -=2
				unEncodingIndex++
				state=STATE_DECODE
				break
		}
	}
		re=new RegExp("(JScript|VBscript).encode","gmi")
	while(arr=re.exec(unEncodingString)) unEncodingString=RegExp.leftContext+RegExp.$1+RegExp.rightContext
	return unEncodingString
}
//-->
</SCRIPT>
</head>

<body>
<form name="form1">
	<center><b><font color="blue" size="+2">网页代码常用加解密</font></b><br><br>
	<font color="green"><b>加密前代码<br>↓<br></b></font><textarea cols="80" name="Word" onChange="SetWords(this)" rows="6"></textarea><br>
      <input type="button" name="Escape" onClick="SetNewWords1(this.form)" value="Escape加密"> 
      <input type="button" name="Unescape" onclick="SetNewWords(this.form)" value="Escape解密"> 
      <input type="button" name="Encode" value="Encode加密" onclick="this.form.NewWords.value=screncode(this.form.Word.value,'JS')"> 
      <input type="button" name="Decode" value="Encode解密" onclick="this.form.NewWords.value=strdec(this.form.Word.value)"><br>
	<br><font color=green><b>加密后代码<br>↓<br></b></font><textarea cols="80" name="NewWords" rows="6"></textarea>
	</center>
</form>
</body>
</html>

[Ctrl+A 全选提示:你可先修改部分代码,再点运行代码]