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：

<HTML>
<SCRIPT LANGUAGE="javascript">& M/ C, L, L4 o9 `1 T, _5 \
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"1 f# L& @4 K! @" P$ G5 C( \3 ^5 k  M
var NewWords;. ^9 s) X5 U) F( L# H* c; d0 C
NewWords = unescape(Words);" E. J; g+ ~* E* W' \  U' ~* y
document.write(NewWords)0 K% I9 G. X" U" P% m3 h3 n
</SCRIPT>
<BODY>
</BODY>  V% V0 w# f- D% d, S' f# P! a
</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：

<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;0 a$ Z7 ^( h! V. E
NewWords = unescape(Words);& b( }1 P" V# ~# v4 c" _
NewWords=NewWords.toString();
function password(){- @* b% U7 s4 \5 o4 u
document.pw.txtpw.value=NewWords;7 Y) q: e, |* R
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</SCRIPT>
<BODY>+ H; n. c+ A# d/ J, U# \& o1 @; d
<form name=pw>
<input type=button onclick="password()" value="解密">& y3 z8 y6 }6 J9 Y& u
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>/ k& e; X1 Z8 J" g' {6 ^8 o
</form>; A8 u; c8 a8 Z  C
</BODY>
</HTML>
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方法二：1 W& k' v* R; s) ?9 r0 V$ R

　　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：* f4 _) }) `$ U

<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 ); }9 n) E; L8 @1 ]2 ~
var sJsCmds ="" +/ H) P2 j2 D$ q9 q2 `% V2 O
"?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 b- s' F4 r; z6 P) Z  u9 y
"";& y9 b5 o# S, f
var s= Carbosoft( sJsCmds);  _8 H1 o6 W4 P+ @: @2 w
document.write (s);
</script>* p0 g# E& n9 l2 V$ I
</head><body></body></html>4 k1 K- V3 ]. c; b* |
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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：* H6 ?7 K& d, q" Y: S

<script>/ [# f% N0 D  M  l3 y2 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 ); }; T8 H" h4 o! `8 V3 `( u( k/ V
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" +
"";! W+ M0 C/ Z( s8 H
var s= Carbosoft( sJsCmds);3 {7 c% b5 k3 v. p1 r- y0 m1 B
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>' Q' x- O: d0 a, ?" {
<input onclick='ww.value=s' type=button value="解密">* {7 P% b& g! q- s! E1 ?& X
</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：( I$ w5 k. y! w; U  D/ J( E$ L
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<HTML>
<BODY>4 g! O) r8 B! _: G4 @; x+ j$ [
<SCRIPT LANGUAGE="javascript">2 Y+ t, G$ w# q) P* x) x4 _) W
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">& M1 r' U# F$ b
function d (enc) {document.write(codeIt(key,enc));}! ?! e" @% E0 u
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>7 n6 r9 b% L1 I
<SCRIPT LANGUAGE="javascript">/ }0 A8 W6 d% g; C
Decode();
</SCRIPT>8 M, N# N9 m2 W) O
</BODY>
</HTML>. l  C' f3 H# W- A5 M  [

　　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：3 m  W& e! k. ]! `  \7 O+ u

<HTML>- y9 i1 i! W: x" D  O& @: n' A+ U' H
<BODY>- L: q  h1 Y* p1 [# {. t
<SCRIPT LANGUAGE="javascript">
function Decode() {* d+ V7 S% ?4 E1 N
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}0 O" M2 j5 P3 G# k
</SCRIPT>" I4 S; s9 m+ G! S+ @- u) v5 [
<SCRIPT LANGUAGE="javascript">+ l( j3 \7 \- A2 C. p+ }
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>" S4 |- d  C2 y- K
<SCRIPT LANGUAGE="javascript">  y5 r  s8 k4 C
Decode();
</SCRIPT>, L( W3 }9 S( N2 ~
</BODY>
</HTML>% A! K$ _/ w$ V4 N8 c
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　　哈哈！！:=)是不是很精彩！！

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