WEB开发网
开发学院网页设计JavaScript 精彩总结:★加密网页破解大法★ 阅读

精彩总结:★加密网页破解大法★

 2007-11-27 18:03:19 来源:WEB开发网   
核心提示:加密网页破解大法孟子E章 当你在浏览网页时,看到一个很漂亮的特效,精彩总结:★加密网页破解大法★,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,还原起来比较复杂,看一个加密过的原文:<HTML><BODY><SCRIPT LANGUAGE=JavaScript>func
加密网页破解大法

 孟子E章

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:

<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);
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:

<html><head><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;;8<04%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>
</head><body></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;;8<04%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!!

Tags:精彩 总结 加密

编辑录入:coldstar [复制链接] [打 印]
赞助商链接