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：) _. M0 I& E  o

<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"2 \- R1 S5 k$ R# t/ {5 _3 P
var NewWords;6 C& E( f/ {8 h7 Z' l
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>1 |$ c( c3 e( y; m1 C4 }
<BODY>
</BODY># ]  F/ z( U- u
</HTML>, j# s' D7 Z( l. b* j- r! L: ^) g' r
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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：5 f5 |; k5 d# q6 u/ Y( J
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<HTML><SCRIPT LANGUAGE="javascript">  v& c" Q6 f3 M2 ]) W
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 b- Z* S/ K; \8 C% G4 R" i2 A
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){# Q: `, R3 z) ~5 m1 R
document.pw.txtpw.value=NewWords;
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</SCRIPT>' S3 n% X* z$ Z1 Y- h
<BODY>1 [, [3 W- q$ L2 ~4 A6 B
<form name=pw>. ?& k% a8 v: a
<input type=button onclick="password()" value="解密">2 V& d8 K& e  p) `! d( o
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>! o& M; w/ p5 x, K  J1 o+ R  |
</HTML>6 v- \2 z: ^0 [* J" a% V
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方法二：  M: @2 j" S3 v& O' y, 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：5 ~7 t6 ^( w. }) B0 H4 f( g4 n. N

<html><head><script>% c# u# }9 U' [& o
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 ="" +4 E1 }9 D! R3 }" R( n
"?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" +; H3 d8 ?1 N, p
"";
var s= Carbosoft( sJsCmds);
document.write (s);* {2 f* ^; q& K: u  b
</script>! X$ j6 H  M, D0 ~* g
</head><body></body></html>) v* r4 V" P. ~# `  w, p+ T
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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：
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<script>  n  ?9 Q+ [5 d  q& m2 ?! H& O1 G% \
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" +, w4 C0 @8 `% P1 l
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var s= Carbosoft( sJsCmds);
</script>
<form name=qq>% T! I+ _* M( C/ H
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">3 C6 c8 ]  L  f; ?# x3 {& Z
</form>

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方法三：3 X& o9 m1 z$ 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：
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<HTML>' ?3 k3 D9 N, @/ ^+ L6 ]
<BODY>
<SCRIPT LANGUAGE="javascript">: Q9 B2 c# {3 p4 d) U! ?
function Decode() {+ D* s  S: H2 W" [
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;}1 [. G" J( C/ q& M5 @( R
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();. H1 d1 |2 T$ J
</SCRIPT>
</BODY>
</HTML>5 \. u4 a$ ~& K6 U+ T* X

　　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：- Z% [9 r) _# ?' j- V" r

<HTML>' e! I7 Q  i0 g3 L
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {4 B% h2 T. ^7 o  N5 ^; ?
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}8 I& u$ f6 @4 P, X. g. I
</SCRIPT>) g, S6 ?7 n9 N6 J
<SCRIPT LANGUAGE="javascript">: l9 i5 y7 @6 @5 L& D- i8 O
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}* ~, ?7 M) g# V3 d: s6 W
</SCRIPT>/ V  |% G$ T# C
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>$ e7 o! D1 q& A( G9 v
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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