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！！6 [, G! \, Z7 K

方法一：

　　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：
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<HTML>- F, J" j" x4 n1 M" [! c
<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;3 U: D6 Z/ L' c+ k
NewWords = unescape(Words);9 A' S, @' m; F: `. z  x( Q
document.write(NewWords)+ y; l0 H. M9 t
</SCRIPT>
<BODY>% s: w( J$ G6 E
</BODY>
</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">+ b3 j7 z- l1 s4 u
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"( Z1 W( p, ]2 ]" p+ I' i' y
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();, t6 u0 {+ C! B8 B
function password(){
document.pw.txtpw.value=NewWords;/ K# Q( ?6 {/ z3 p" w
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</SCRIPT>, y( A- v( d- W, w
<BODY>9 g. m) v5 }7 E# @3 W* t8 F
<form name=pw>- P  a0 e$ Z( \# r0 p5 }
<input type=button onclick="password()" value="解密">, i4 ?  J3 i6 i' w4 z" s: F0 ^( @
<br>) h* r2 `1 e3 \7 g, e) w- ]
<textarea name="txtpw" cols="100" rows="100"></textarea>6 v& L: {* f- F: j" ~
</form>  S. N! @5 q+ n1 j
</BODY>  U% e' V, D$ M8 r
</HTML>

方法二：1 F  f/ k2 }1 `% q: ]4 b. o) g* W8 \
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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：+ |( D+ Z# J# {- c0 H

<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 ); }. d4 b% Z% \/ y6 L) ^* w- D% W7 M! x
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" +
"";
var s= Carbosoft( sJsCmds);% Z) O8 O3 E1 {2 T8 L! ?( S
document.write (s);, y& t, [4 s3 G- T& @
</script>  V7 H  W* a( _8 C( _* n! [. O5 d! H
</head><body></body></html>  Y* Y# _, V, u8 u# a  e- |* p, W. q

　　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：1 Z# [- \8 p8 \

<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 ); }
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" +# k+ n0 Y2 R1 Q+ F$ F
"";1 \' e+ O" ]9 H" A3 P6 |
var s= Carbosoft( sJsCmds);
</script>0 e! n3 M6 B( A5 l* A0 U
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">8 o( A2 M% e/ D( i& y" I
</form>  n0 y! Z! Q7 G6 ]8 P4 s3 L; D
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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：2 Y. s9 I6 U( i

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">, P- p. U+ c2 m+ i; x# Y" T, ~! f
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}4 A7 [% P9 w- K. a0 u9 S9 e! ~
</SCRIPT>9 G1 f  V' H: U. K+ n0 u0 O
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>: ^& J5 V) J* U9 l
<SCRIPT LANGUAGE="javascript">
Decode();2 ]! [; n9 i% Q" S
</SCRIPT>+ d% c& n0 z' {
</BODY>
</HTML>* f" a; `& e( ~" a
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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：
% \# ~2 M; _; W9 Z6 _9 l
<HTML>; t* @8 f5 j- _5 g! f6 M/ z  u" Z
<BODY>* |; T2 t. ~3 h( ^
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}1 Z+ v  d" b) K# g% z' r/ A
</SCRIPT>3 Z0 i. k1 j6 z2 @
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}4 t+ V. Y$ J( E' u. U+ J# E
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">7 i- ?! E; r. N" F- h
Decode();: A9 I. {4 @3 q
</SCRIPT>+ P8 U. b) L/ X! W4 o4 m. v
</BODY>
</HTML>8 s- B9 D1 R3 N# k3 I
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　　哈哈！！:=)是不是很精彩！！

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