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！！( k* u' w3 C+ j! K* V, s

方法一：- v9 J6 K* O2 z6 M+ s* e

　　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：9 P# B$ N! g8 Q+ ]! |. T
1 L/ A1 O8 Z4 s& ~
<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"7 _- |( ?) C8 X9 i) {6 f# X
var NewWords;
NewWords = unescape(Words);/ }# X" p5 E) m  S
document.write(NewWords)4 `6 V. i% W2 b9 M* J' u
</SCRIPT>
<BODY>
</BODY>
</HTML>9 E3 s7 h9 v) @, t0 I% p/ `
& l& c4 q* Z; `4 a4 k$ |
　　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：( r+ v; B% W' F8 y  U; c. q

<HTML><SCRIPT LANGUAGE="javascript">4 \4 j; X1 k* ?- ]/ w2 S
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);  L7 m5 b2 s. U/ W. P. B9 @! m4 s2 w0 Z
NewWords=NewWords.toString();
function password(){( b) G  p1 j4 b# |  J6 n0 }; |
document.pw.txtpw.value=NewWords;
}
</SCRIPT>9 ^) J) b, m7 s: t
<BODY>
<form name=pw>7 B4 u. |1 j. k6 Y
<input type=button onclick="password()" value="解密">
<br>9 [  ~6 {3 I4 G3 [
<textarea name="txtpw" cols="100" rows="100"></textarea>' z# E! \% M5 A; y6 j
</form>5 N2 ]0 R- [* i5 O* G
</BODY>
</HTML>
7 r+ |$ U: [0 s0 B! z( O) B4 H
方法二：6 T: I# Y( p* J5 r: F4 @9 o' D
% [7 B" ~5 k7 K9 c: o+ E4 Q& Q+ E
　　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：' V8 h- q. [9 k" v/ U7 v

<html><head><script>2 Q+ l& |5 C. `( t
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 ); }+ v* z2 J1 d5 v1 \7 Q( Q! _
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" +* B6 g; W- Q2 V" e/ n6 L  [9 z5 D
"";
var s= Carbosoft( sJsCmds);
document.write (s);1 f4 ~* y, x3 x" n5 C) f. o' j
</script>
</head><body></body></html># }9 W  W. N  s# ^' @

　　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：
! v8 N( V" I5 _; D' @' B- E
<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" +
"";1 d/ e  j7 \5 F! D& p2 q8 {
var s= Carbosoft( sJsCmds);7 W: r" @7 ^: i0 v& ?4 T
</script>
<form name=qq>& j5 G  T) r# |. _9 }! A/ W
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">0 T! L' l, r1 y5 j+ |
</form>
# R2 q8 C7 _. g7 b& q8 b% i  y

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：7 b3 z7 o2 H  z( O: g7 e- k! H

<HTML>8 G% B9 a; Q0 V" Z/ S
<BODY># |6 Q  h. }6 x# v' q
<SCRIPT LANGUAGE="javascript">, f6 x0 e8 {+ h! x# g
function Decode() {1 t/ V7 w* Z- k2 Z7 _# d- m! g# s
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>9 r8 p1 d+ U  n. m! h+ n
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}- l3 u9 X5 T# P
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}, k+ O; Y& }  c' S5 H4 _  V* k
</SCRIPT>
<SCRIPT LANGUAGE="javascript">0 Q. r& l, }3 B: {5 S& m+ C
Decode();4 `3 O" Y& d3 s5 S! U
</SCRIPT>
</BODY>
</HTML>+ z/ Q7 f6 P/ |9 F$ Z
3 C0 M( _( y! Q* g" g0 o
　　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：0 L& F; X4 k: F' w/ l* l" ?3 X
8 ~$ E0 q" [" b# Y( y# V+ n
<HTML>  A' {: f- o* J8 H* ^
<BODY>( S: q$ `# |* y9 M. Z9 U& q
<SCRIPT LANGUAGE="javascript">
function Decode() {" o8 u3 }9 E  L3 K$ X8 p+ v
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>1 F# ~/ G2 v" B- M% ^7 S. K  ^& D0 C4 [
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}5 H) K9 t0 q& @& R/ h# k8 P, Y
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}; h; ]# C0 @8 ]5 D
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();- @9 V5 T: V  z* c# V
</SCRIPT># `2 e9 m. X& O
</BODY>" W) I/ R- S( B3 R0 }! B( m% {5 p
</HTML>

　　哈哈！！:=)是不是很精彩！！

捌玖网络 89w.org----致力于站长学习交流

返回列表

网页制作中页面的加密和破解

[收藏此主题] [关注此主题的新回复]

[通过 QQ、MSN 分享给朋友]