js如何加密源代码，页面样式全部用js写，如何操作 (js加密解密源代码)
js如何加密源代码，页面样式全部用js写，如何操作 (js加密解密源代码)
js加密，可以用JShaman实现，
网页源码加密，可以用ShareWAF，
你这两个需求，都是能实现的，
当你在浏览网页时，看到一个很漂亮的特效，你查看源代码时看到的是一队乱码，那多扫兴呀！根据本人的研究，总结出了三种解密方法，与大家分享！！
方法一：
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：
HTML
SCRIPT LANGUAGE="Javascript"
var Words ="%3Chtml%3E%3Cbody%20bgcolor%3D%22red%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);
document.write(NewWords)
/SCRIPT
BODY
/BODY
/HTML
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：
HTMLSCRIPT LANGUAGE="Javascript"
var Words ="%3Chtml%3E%3Cbody%20bgcolor%3D%22red%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(){
document.pw.txtpw.value=NewWords;
}
/SCRIPT
BODY
form name=pw
input type=button onclick="password()" value="解密"
br
textarea name="txtpw" cols="100" rows="100"/textarea
/form
/BODY
/HTML
方法二：
有一个软件叫HTMLEncrypt.exe，它就是把源代码进行加密的软件，这个软件的加密的原理是把字符转换。下面的例子是一个分帧的页面：
htmlheadscript
function Carbosoft( s ) { var sRet=""; for(j=0; j s.length; j++ ){ var n= s.charCodeAt(j); if (n=8364) {n = 128;} sRet += String.fromCharCode( n - 3 ); } return( sRet ); }
var sJsCmds ="" +
"?kwpoA?khdgA?phwd#kwws0htxly@%Frqwhqw0W|sh%#frqwhqw@%wh{w2kwpo#fkduvhw@lvr0;;804%A?wlwohAZHOFRPH?2wlwohA?phwd#qdph@%JHQHUDWRU%#frqwhqw@%Plfurvriw#IurqwSdjh#613%A?phwd#qdph@%Plfurvriw#Wkhph%#frqwhqw@%qrqh/#ghidxow%A?phwd#qdph@%Plfurvriw#Erughu%#frqwhqw@%qrqh/#ghidxow%A?2khdgA?iudphvhw#erughu@%3%#iudpherughu@%3%#urzv@%-/93%A##?iudph#qdph@%pdlq%#vuf@%xs1kwp%#vfuroolqj@%dxwr%A##?iudph#qdph@%rqolqh%#vuf@%grzq1kwp%#vfuroolqj@%qr%#qruhvl}h#wdujhw@%beodqn%A##?qriudphvA##?erg|A##?sAWklv#sdjh#xvhv#iudphv/#exw#|rxu#eurzvhu#grhvq*w#vxssruw#wkhp1#?2sA##?2erg|A##?2qriudphvA?2iudphvhwA?2kwpoA?irqw#froru@%33333%A?s#doljq@%fhqwhu%A?vpdooA?irqw#idfh@%Wdkrpd%AWklv#iloh#zdv#hqfu|swhg#xvlqj#dq#xquhjlvwhuhg#yhuvlrq#ri#?d#kuhi@%kwws=22fduer{1wkhgqv1qhw2kwpohqfu|sw1kwp%AKWPO#Hqfu|sw#y413?2dA1?2irqwA?2vpdooA?2sA" +
"";
var s= Carbosoft( sJsCmds);
document.write (s);
/script
/headbody/body/html
从上面可以看出，浏览器解释这写代码前，进行了还原，从而可以得到破解的方法如下：
script
function Carbosoft( s ) { var sRet=""; for(j=0; j s.length; j++ ){ var n= s.charCodeAt(j); if (n=8364) {n = 128;} sRet += String.fromCharCode( n - 3 ); } return( sRet ); }
var sJsCmds ="" +
"?kwpoA?khdgA?phwd#kwws0htxly@%Frqwhqw0W|sh%#frqwhqw@%wh{w2kwpo#fkduvhw@lvr0;;804%A?wlwohAZHOFRPH?2wlwohA?phwd#qdph@%JHQHUDWRU%#frqwhqw@%Plfurvriw#IurqwSdjh#613%A?phwd#qdph@%Plfurvriw#Wkhph%#frqwhqw@%qrqh/#ghidxow%A?phwd#qdph@%Plfurvriw#Erughu%#frqwhqw@%qrqh/#ghidxow%A?2khdgA?iudphvhw#erughu@%3%#iudpherughu@%3%#urzv@%-/93%A##?iudph#qdph@%pdlq%#vuf@%xs1kwp%#vfuroolqj@%dxwr%A##?iudph#qdph@%rqolqh%#vuf@%grzq1kwp%#vfuroolqj@%qr%#qruhvl}h#wdujhw@%beodqn%A##?qriudphvA##?erg|A##?sAWklv#sdjh#xvhv#iudphv/#exw#|rxu#eurzvhu#grhvq*w#vxssruw#wkhp1#?2sA##?2erg|A##?2qriudphvA?2iudphvhwA?2kwpoA?irqw#froru@%33333%A?s#doljq@%fhqwhu%A?vpdooA?irqw#idfh@%Wdkrpd%AWklv#iloh#zdv#hqfu|swhg#xvlqj#dq#xquhjlvwhuhg#yhuvlrq#ri#?d#kuhi@%kwws=22fduer{1wkhgqv1qhw2kwpohqfu|sw1kwp%AKWPO#Hqfu|sw#y413?2dA1?2irqwA?2vpdooA?2sA" +
"";
var s= Carbosoft( sJsCmds);
/script
form name=qq
textarea name=ww cols=100 rows=10/textarea
input onclick='ww.value=s' type=button value="解密"
/form
方法三：
有一种加密方法是每行单独加密，还原起来比较复杂。看一个加密过的原文：
HTML
BODY
SCRIPT LANGUAGE="JavaScript"
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
/SCRIPT
SCRIPT LANGUAGE="JavaScript"
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%\'()*+,-.\/:;=?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
/SCRIPT
SCRIPT LANGUAGE="JavaScript"
Decode();
/SCRIPT
/BODY
/HTML
还原的时候，也必须每行单独解密，用下面的方法可以看到源代码：
HTML
BODY
SCRIPT LANGUAGE="JavaScript"
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
/SCRIPT
SCRIPT LANGUAGE="JavaScript"
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%\'()*+,-.\/:;=?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
/SCRIPT
SCRIPT LANGUAGE="JavaScript"
Decode();
/SCRIPT
/BODY
/HTML
哈哈！！:=)是不是很精彩！！
MD5不是加密算法，它是Hash算法，所以它不可逆，也没法还原成原文。
你可以用base64、异或或者aes des等加密算法去实现。
1、base64加密
在页面中引入base64.js文件，调用方法为：
?
123456789101112131415161718
!DOCTYPE HTMLhtmlheadmeta charset="utf-8"titlebase64加密/titlescript type="text/javascript" src="base64.js"/scriptscript type="text/javascript" var b = new Base64(); var str = b.encode("admin:admin"); alert("base64 encode:" + str);//解密 str = b.decode(str); alert("base64 decode:" + str);/script/headbody/body/html
2、md5加密
在页面中引用md5.js文件，调用方法为
?
1234567891011121314
!DOCTYPE HTMLhtmlheadmeta charset="utf-8"titlemd5加密/titlescript type="text/ecmascript" src="md5.js"/scriptscript type="text/javascript" var hash = hex_md5("123dafd"); alert(hash)/script/headbody/body/html
3、sha1加密
据说这是最安全的加密
页面中引入sha1.js，调用方法为
?
1234567891011121314
!DOCTYPE HTMLhtmlheadmeta charset="utf-8"titlesha1加密/titlescript type="text/ecmascript" src="sha1.js"/scriptscript type="text/javascript" var sha = hex_sha1('mima123465') alert(sha)/script/headbody/body/html
一下为js们的源代码
base64.js：
?
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106
/**** Base64 encode / decode** @author haitao.tu* @date 2010-04-26* @email tuhaitao@foxmail.com**/function Base64() { // private property _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; // public method for encoding this.encode = function (input) { var output = ""; var chr1, chr2, chr3, enc1, enc2, enc3, enc4; var i = 0; input = _utf8_encode(input); while (i input.length) { chr1 = input.charCodeAt(i++); chr2 = input.charCodeAt(i++); chr3 = input.charCodeAt(i++); enc1 = chr1 2; enc2 = ((chr1 3) 4) | (chr2 4); enc3 = ((chr2 15) 2) | (chr3 6); enc4 = chr3 63; if (isNaN(chr2)) { enc3 = enc4 = 64; } else if (isNaN(chr3)) { enc4 = 64; } output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4); } return output; } // public method for decoding this.decode = function (input) { var output = ""; var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0; input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); while (i input.length) { enc1 = _keyStr.indexOf(input.charAt(i++)); enc2 = _keyStr.indexOf(input.charAt(i++)); enc3 = _keyStr.indexOf(input.charAt(i++)); enc4 = _keyStr.indexOf(input.charAt(i++)); chr1 = (enc1 2) | (enc2 4); chr2 = ((enc2 15) 4) | (enc3 2); chr3 = ((enc3 3) 6) | enc4; output = output + String.fromCharCode(chr1); if (enc3 != 64) { output = output + String.fromCharCode(chr2); } if (enc4 != 64) { output = output + String.fromCharCode(chr3); } } output = _utf8_decode(output); return output; } // private method for UTF-8 encoding _utf8_encode = function (string) { string = string.replace(/\r\n/g,"\n"); var utftext = ""; for (var n = 0; n string.length; n++) { var c = string.charCodeAt(n); if (c 128) { utftext += String.fromCharCode(c); } else if((c 127) (c 2048)) { utftext += String.fromCharCode((c 6) | 192); utftext += String.fromCharCode((c 63) | 128); } else { utftext += String.fromCharCode((c 12) | 224); utftext += String.fromCharCode(((c 6) 63) | 128); utftext += String.fromCharCode((c 63) | 128); } } return utftext; } // private method for UTF-8 decoding _utf8_decode = function (utftext) { var string = ""; var i = 0; var c = c1 = c2 = 0; while ( i utftext.length ) { c = utftext.charCodeAt(i); if (c 128) { string += String.fromCharCode(c); i++; } else if((c 191) (c 224)) { c2 = utftext.charCodeAt(i+1); string += String.fromCharCode(((c 31) 6) | (c2 63)); i += 2; } else { c2 = utftext.charCodeAt(i+1); c3 = utftext.charCodeAt(i+2); string += String.fromCharCode(((c 15) 12) | ((c2 63) 6) | (c3 63)); i += 3; } } return string; }}
script language="javascript"
var str;
function showUnico(){
if(document.getElementById("before").value.length 0){
str = escape(document.getElementById("before").value);
document.getElementById("after").value = str;
}
else alert("请输入要加密的代码");
}
function showHtml(){
if(document.getElementById("after").value.length 0){
str = unescape(document.getElementById("after").value);
document.getElementById("before").value = str;
}
else alert("请输入要解密的代码");
}
function clearBoth(){
document.getElementById("before").value = "";
document.getElementById("after").value = "";
}
/script
body
center
table
tr
th加密前/th
th加密后/th
/tr
tr
td
textarea id="before" style="width: 200px; height: 174px"/textarea
/td
td
textarea id="after" style="width: 200px; height: 174px"/textarea
/td
/tr
/table
br
input type="button" value="加密" onclick="showUnico()"
input type="button" value="解密" onclick="showHtml()"
input type="button" value="全部清空" onclick="clearBoth()"
/center
/body
