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！！. E% ?# a/ B& z1 S
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方法一：' F6 x: C' a# q) ?: z* p

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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：$ E% _1 @3 H  B, f* P
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<HTML>9 @. c2 q" r- ]- Q
<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);' ?: g2 ^! J! K
document.write(NewWords)) {( u0 u3 Y$ G0 T% h! m
</SCRIPT>
<BODY>* s2 t0 ~( y% f/ m1 F% |
</BODY>
</HTML>3 a" x% B' _% k5 F' Z9 I

　　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：: E! V* E  ]" d* _$ ^5 Y; `0 h
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<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;& e- D1 S/ c! t2 I5 d6 Z* y4 Y
NewWords = unescape(Words);; }; L" ~8 j8 m9 Y' x. D- X
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;6 h! [7 P* ~8 N$ C
}9 F: d3 {) I% C
</SCRIPT>
<BODY>( H$ ]% h1 K4 S$ K' v. M8 T
<form name=pw>" k3 E; J6 @7 k
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>% k$ g$ ?5 r4 y0 a! P( w0 O5 |! H
</form>5 t' u2 V2 C+ T, ]+ w
</BODY>; J: F. y0 K# A
</HTML>

方法二：" T% Q. C- A8 U' h4 i1 E& g
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　　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：: V! L  ~% P0 F1 L2 A0 \

<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 ); }6 ]7 J- b* M" S! ?. W- c2 j) N
var sJsCmds ="" +" x8 y6 K$ @4 V
"?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" +
"";* K" y% K+ s9 H# u) a
var s= Carbosoft( sJsCmds);- |0 h9 }1 W, V
document.write (s);
</script># z6 V  Z* R$ u! d" b- L
</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：. M& p4 p" I. g2 t% O9 b

<script>! ^) x6 `: q; p3 o& B  b2 Y- w
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 ="" +; \2 _1 b: g9 O) O" H- C
"?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" +  o, }. X: K  x1 i  h- M
"";
var s= Carbosoft( sJsCmds);+ s+ _1 K2 S* N3 a3 K3 a" j
</script>
<form name=qq>  O/ I* P, Y' g" Y# T: N: x
<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：$ P, W. U& b& p* `
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　　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>9 r/ @$ }$ {; ?9 L
<SCRIPT LANGUAGE="javascript">
function Decode() {  s1 ~$ o3 t9 _2 S) }; y6 p
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}4 @- J5 m* ~- w3 u7 z3 @
</SCRIPT>+ R1 l+ k- E8 |/ _* p4 G" M  W
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}' ~' C- W9 p/ D6 q: y( x
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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 y+ x9 t4 s$ ], C+ w2 \
</SCRIPT>3 a" T* O9 d8 r  n) k
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>( [. H/ X3 o6 B' o9 t
</BODY>
</HTML>& `- X2 H5 ^& U+ W
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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：1 c# c* p" s! @
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<HTML>1 A9 C4 E; B' Y3 P& u, M# r
<BODY>
<SCRIPT LANGUAGE="javascript"># F# h  \% M1 j/ k! \! F* }
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>9 T6 z$ x- [( k/ M( o) e
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}! _+ b  t' V6 y3 s
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript"># ]* @6 y, c% i/ A$ @  v
Decode();
</SCRIPT>& u( i+ a, P' y+ {/ u( p) ?, u- P0 w0 u* ~
</BODY>9 T8 H# v) L+ U$ f
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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