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：; V% _- S- ?7 u3 ?

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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：

<HTML>
<SCRIPT LANGUAGE="javascript">8 x5 l* n( A. z: N. V9 r6 k7 g$ L
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"+ L# G% E2 u  t  o2 ]
var NewWords;8 j* H" O/ J2 c/ Z% Q0 m5 z
NewWords = unescape(Words);( q: w! L9 J5 M; s9 E2 B
document.write(NewWords)
</SCRIPT>9 }( m; L2 C* d5 v: z
<BODY>
</BODY>) q5 U. _/ x; }% K8 u, \' A, h
</HTML>2 U# @0 s8 _, [- e+ f, \8 O( g3 s4 Z* o4 h

　　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：
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<HTML><SCRIPT LANGUAGE="javascript">4 g1 Y! N( e  _2 r( O, }7 X
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"6 ^$ G/ B' C; G# g) j! e2 E
var NewWords;5 E9 q( i3 P' m) e! R
NewWords = unescape(Words);
NewWords=NewWords.toString();7 S; l" o# Y' e( I
function password(){; s3 O6 o( o5 j: n( F
document.pw.txtpw.value=NewWords;
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</SCRIPT>& `8 k9 L: M8 j2 K/ q/ w
<BODY>4 q0 N' {3 s( n$ r$ F1 r
<form name=pw>
<input type=button onclick="password()" value="解密">+ n) J  s: e3 g& v# d. T  F; p
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>- c# D, F0 I) }5 x
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方法二：/ P2 A/ u, f8 c

　　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：- s# a8 E, C  k
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<html><head><script>" o: f' H. M# @
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 ="" +  A' w0 h7 ~$ z( @
"?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" +3 T+ r* V: E1 I2 |
"";
var s= Carbosoft( sJsCmds);! E$ N+ K$ I: _2 V. k' c8 \+ T# c
document.write (s);$ {# o, t# a) }: ^
</script>
</head><body></body></html>- N# p: M3 }0 i0 L: \
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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>: z$ c0 |  f3 B" V' H
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 ="" +: f, K; ^8 q) S- W
"?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" +0 J; b! M: E# [2 s3 ]/ E) J
"";
var s= Carbosoft( sJsCmds);1 ~0 y2 V3 Y* j8 s! s$ D' C
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>
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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：* g2 x9 z' m+ `) x

<HTML>9 o: z9 j9 {2 w4 c* V$ |' {
<BODY>% V2 _6 x3 w# _: ~9 h( l9 ~  S$ o, _
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}0 X, a. a& a" {6 ^( z9 K
</SCRIPT>8 l" l9 Q  l* c+ p  [
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}) k! i6 F+ [: V6 O
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>$ ]* i$ M% ~8 h0 ?
<SCRIPT LANGUAGE="javascript">4 D+ Q5 Y0 u4 X* @
Decode();
</SCRIPT>
</BODY>) X: {1 v- b7 B* p3 C" P3 I
</HTML>
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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>0 h8 w$ ~4 u$ k+ ?" ?
<BODY>
<SCRIPT LANGUAGE="javascript">2 x  y- ~) ]' B- B7 B0 u2 I
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}6 p" |2 \$ K8 b# G3 F' }: ^
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}0 P  i7 G- X' S5 j+ o8 {
</SCRIPT>! M1 U. t! K) P; a
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>, D& Q9 d& v+ W& S; X5 k2 z7 e
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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