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！！: F5 O" k0 }# a6 K5 `, z, k" H

方法一：- _6 K5 q$ O+ C
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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">
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"0 L. }8 s$ f7 D# C& j/ V
var NewWords;
NewWords = unescape(Words);/ d  t% k" [' V% s" e+ f
document.write(NewWords)
</SCRIPT>
<BODY>+ ?, l) u- U/ U  g
</BODY>' X; w; h' r3 \/ l
</HTML>
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　　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：3 q8 }4 F& f1 _+ z- v; m

<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"6 ~' w# F/ y( K
var NewWords;
NewWords = unescape(Words);/ U) M2 D/ I; a8 O- [
NewWords=NewWords.toString();1 u2 ]/ @" Z7 \6 w! D6 Z
function password(){3 R8 ~3 y6 f0 W0 b% X$ B
document.pw.txtpw.value=NewWords;
}' @2 p: `1 G+ Y2 g' H( y% Y* {- P- k
</SCRIPT>
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">4 V# d  I  A' _
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>* r/ X& L) ~9 z/ @
</HTML>
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方法二：
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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：
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<html><head><script>  D2 }0 q" S# e! ?+ i; 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 ="" +0 z1 z- t# r$ X. T7 K
"?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" +2 P; D5 X9 I6 @, {
"";
var s= Carbosoft( sJsCmds);$ q6 b+ [) m( O1 ?
document.write (s);8 ^# J$ s2 s6 [- S
</script>
</head><body></body></html>9 u) E% P  @+ Z5 A9 d# [/ H
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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：; T0 j# |0 S) e7 l2 c0 K& ^

<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 ); }# |) q! n4 F( r% c
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" +
"";% \3 e, I( E0 A+ l( |4 R
var s= Carbosoft( sJsCmds);
</script>5 R8 V2 M- v  i: ~; D1 p
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">$ o& n, S  `5 p3 z# c1 N" l
</form>6 G: Z8 ~; o: q; f; A" ~( H2 |8 @. r
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方法三：' _0 v' s/ {, e8 v6 I9 z1 w

　　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：1 F9 j; }* y. b0 i9 T9 y

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript"># p  C$ M3 U7 d) S- \
function Decode() {7 l2 {/ n0 _+ x8 U  b9 ~( D  _
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}9 m* S$ O& U: V* O
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}7 S- A6 V' Y# V( p! i
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}, Q5 Q( D! Z2 ]0 i! V6 r- |
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();# D& m1 l* @: l: C. u
</SCRIPT># D5 u! Y  U$ c: d5 N( k" B
</BODY>$ o8 ^8 n. T# Q3 ~' g4 v0 i
</HTML>2 z" j1 ^& y8 d. E- a, ]

　　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>0 y- e  G" s# n1 m7 k3 S
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>: I0 Q% y5 h7 `, D' _
<SCRIPT LANGUAGE="javascript">1 K7 \0 F/ R' {" K1 z; K' f# `
function d (enc) {alert(codeIt(key,enc));}3 k# W# ^( `$ W8 Z5 [
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>  Y5 R& j1 [4 Y6 s) U; h( L  D& r3 ^
<SCRIPT LANGUAGE="javascript">) O0 M! }9 Q  |. }( }" [
Decode();+ C9 |4 t3 ^- ]1 U) B+ h9 l5 L" K
</SCRIPT>/ ?/ G' N) M8 P5 X. \
</BODY>
</HTML>+ g/ h7 X9 N7 K: R

　　哈哈！！:=)是不是很精彩！！

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