网页制作中页面的加密和破解

网页加密, 网页破解

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！！

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方法一：
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　　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：0 f' I8 I  Z. H" q& M- F
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<HTML>. n3 N' G  F( Z
<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);* E% i! ^4 k, T5 T* D! y8 L
document.write(NewWords)
</SCRIPT>2 H+ Z% W/ K, a
<BODY>0 G# Y& M: J/ P4 y4 h4 v
</BODY>: F9 ~' C4 y4 @2 @
</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：7 O% h' C% l8 T7 r9 b* [* F
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<HTML><SCRIPT LANGUAGE="javascript">+ l( b- |$ M( i1 F6 l) R7 ]2 c1 g
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"/ o0 Y2 v% t/ ~9 Y% @; [5 a! T
var NewWords;$ x" x4 a! J- }' c% f, |& k
NewWords = unescape(Words);2 @4 T) M6 s. [# \! ]
NewWords=NewWords.toString();; j" J" H7 T5 p- X+ }
function password(){
document.pw.txtpw.value=NewWords;; }# V  o% K" A8 g8 G  M- j
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</SCRIPT>
<BODY>5 J, Z+ f# h, u0 W
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>$ X- ^7 h9 W: l% r; r7 L% X: o  B
<textarea name="txtpw" cols="100" rows="100"></textarea>& D8 Q( _3 ?7 @! Z( k% h
</form>
</BODY>
</HTML>" a7 P  k; F+ \
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方法二：% C/ }  U$ _% k0 u$ n( w" b

　　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成Unicode代码。下面的例子是一个分帧的页面：
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<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 ); }+ D, h% T" a, K1 P
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);/ Y3 _/ b3 ^' i- r' H: o
document.write (s);
</script>
</head><body></body></html>
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　　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" +
"";9 x, J9 S! b, `4 K7 D
var s= Carbosoft( sJsCmds);* |% k- U. O/ K8 }7 h5 R+ u
</script>1 a, l# `5 ?2 W, c4 T3 n
<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：; W+ `, Q* _" a, k- _) @

　　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：
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<HTML>) `! R' M9 n5 @0 Y$ j3 e8 d& W
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>9 u$ C0 \& `- i8 }  @
<SCRIPT LANGUAGE="javascript">- I; N% r* d- O* [
function d (enc) {document.write(codeIt(key,enc));}( l2 `' y$ g% T; q+ z
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}7 n7 Y! C, k6 e) ?0 C" ^: E5 c$ k
</SCRIPT>. G. L" W  \4 D/ c, _( |. ]' Q
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>) z, K! X1 G' @4 X+ }' d
</HTML>$ \- x) R" U5 f- ^
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　　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：
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<HTML>- @7 i# U% _4 X* D
<BODY>  Q' {" F- @. ], x
<SCRIPT LANGUAGE="javascript">% s$ t; X' P# w1 J# A
function Decode() {' q) r+ W! C0 D" o* }# w1 o
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">1 j9 C' B9 q1 S
function d (enc) {alert(codeIt(key,enc));}9 A1 ~$ T+ s" ^& m5 r, u) \0 B# M# f
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}6 a2 C' t6 x; I5 w! Q
</SCRIPT>
<SCRIPT LANGUAGE="javascript">! |. i6 N2 F3 h
Decode();( D' w! y( Z3 Y7 _3 U5 K
</SCRIPT>
</BODY>; P  I$ o- l3 W( J6 o4 s! g
</HTML>7 L4 @0 X* Q5 e9 }' l
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　　哈哈！！:=)是不是很精彩！！

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