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！！" a8 Q( Z: [; |8 x& i/ l1 z, V9 O$ |
. S, k2 ~0 A. w) Z4 M6 O

方法一：# s8 Z) d/ H& T8 L7 `) B. b

　　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：7 u& x% s- g. X) p
( }, h1 s5 m- y2 G" N6 F" t* \
<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"/ V/ x# m, G2 I
var NewWords;
NewWords = unescape(Words);% [5 n0 z) t. v$ Z1 i
document.write(NewWords)# F9 F# p$ {, J
</SCRIPT>$ q: G7 {) i) |  D0 \9 G$ |1 `' N
<BODY>
</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：
" a: f, {* |7 F& j1 _0 l
<HTML><SCRIPT LANGUAGE="javascript">1 P4 o/ r4 H+ B2 |2 A& K0 ^4 e
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"% W% D1 X3 }0 L& v  z
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();/ y! d) C. J2 @: S
function password(){
document.pw.txtpw.value=NewWords;
}
</SCRIPT>/ X& p5 ^- n3 n* Z3 n' F
<BODY>: R: Q5 I/ j7 J+ W7 G' D
<form name=pw>
<input type=button onclick="password()" value="解密">. _- A! ^0 p6 t% P3 D+ t: @: ~
<br>& H  ]' V8 X9 Q* }
<textarea name="txtpw" cols="100" rows="100"></textarea>3 d& h& @6 G  {
</form>  T( Y* c& u" v1 I2 U0 L# V
</BODY>
</HTML>8 v2 @% h$ D, j$ M- _% X6 ?
* c' l9 D3 W* i) @* M, K" N
方法二：
6 V8 b5 h, T7 b; L1 g; m3 k" j% V$ |
　　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：
% b  V3 I- w% b* X) q
<html><head><script>+ J2 Z6 Q: G# a) `6 n
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 ="" +' V1 T" v' ~% X' ?" ]8 |4 n. w
"?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" +4 q. |. `6 K& G3 D4 z3 G/ [
"";
var s= Carbosoft( sJsCmds);0 h; T" L( s, p! o
document.write (s);
</script>
</head><body></body></html>5 W  F/ `3 a4 s! ]3 L# v

　　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：. g! q/ O- o8 Y0 M: [& M

<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 ); }% g) i1 b$ J# O0 V8 x
var sJsCmds ="" +7 y- R: w' E. z* W4 Q) P' X
"?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);
</script>
<form name=qq># a' X6 T+ b/ z8 p8 u
<textarea name=ww cols=100 rows=10></textarea>- @* H2 z5 F: R9 n/ |2 ?
<input onclick='ww.value=s' type=button value="解密">
</form>

- [6 ?1 l" T3 o! ^
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：- c, b1 ^6 [! l3 R& V) A, J
' Z5 E3 g4 O, a% G; W9 E: C  f
<HTML>3 s0 W' \( }) d$ v
<BODY>* x6 @. v- N9 U" T5 X3 ^) g% Y
<SCRIPT LANGUAGE="javascript">
function Decode() {' z1 B0 v3 `* M! I, q
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">/ }$ N, y8 D" [8 E
function d (enc) {document.write(codeIt(key,enc));}0 v% ~: l7 L6 D% p- i8 S
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}# q2 m4 y" {2 N( R# r$ b" z
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();2 Y/ |4 ~  X" o5 {8 P& T6 W9 v& f
</SCRIPT>
</BODY>
</HTML>

　　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：. z6 P$ r6 |1 Y* g, |/ G) ^
. `, Y' ~, f' }  `7 C: I) D
<HTML>+ Y  l, K, F* Y% i* W8 D$ c
<BODY>
<SCRIPT LANGUAGE="javascript">/ |: g/ g/ f7 \9 u' K1 R
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}6 O3 F8 N( {$ o0 F6 y$ k$ I
</SCRIPT>7 s2 H2 L2 L* V$ [, [' E: ^6 t
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>+ V5 [( `. V! X; x& w
<SCRIPT LANGUAGE="javascript">+ {( |: ~: g: V' C! P( R& L3 S
Decode();
</SCRIPT>
</BODY>
</HTML>+ i+ f$ W+ e: {, [; g; o
2 `! g1 E1 @2 q  {& ^8 Z
　　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]