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！！

方法一：" M$ C3 k, Q" a( ^! V

　　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>- I7 z# g. \6 s7 B  x5 s  \6 W
<SCRIPT LANGUAGE="javascript">9 s' g& F7 c$ V% C
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;) O. ^% s$ j+ Y3 k1 d. x' z( \
NewWords = unescape(Words);+ \! w! @9 ?0 Q4 e( U9 Y3 n
document.write(NewWords)
</SCRIPT>4 u- ?6 x$ {" ^" n9 b/ K, F
<BODY># Z4 e, i: P. {/ s" W3 Z$ m: m
</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：6 `) i7 u" y4 V* O, ^! a2 u7 D5 \

<HTML><SCRIPT LANGUAGE="javascript"># _6 _- n* W; F7 g7 m5 d
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;+ v) D. z( U) p7 ~: G; T) l
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;1 c2 Y8 k. K2 X/ g' ?
}
</SCRIPT>
<BODY>2 q2 @/ C3 y" |9 u% W
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>% j, o6 h+ s( B2 b" F( Q- m( I3 l1 c
</form>
</BODY>
</HTML>
% s% ~  j% u& {3 _
方法二：+ `6 P( f3 ^6 |" x( T2 w
9 Y. A! q$ A, I0 u! D3 ]- l
　　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：$ N7 r9 I: P9 L, n6 W; h

<html><head><script>  \' L" |7 l6 C( c
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" +* E; x! q- |) F- H) U. m% I
"";( v1 {/ m% F6 E" \; ]( o# n6 w
var s= Carbosoft( sJsCmds);0 n' N2 o* D1 w/ `. e& Z) h' ^  q3 G
document.write (s);
</script>7 J& m) |5 d- ~+ p! u0 M
</head><body></body></html>- i1 F, C$ ~% V' G6 ]0 |2 T
- m7 L4 M+ G: X  S$ o4 E
　　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：
$ V! z3 A8 W, _. M( Y
<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 ); }3 }" D/ i6 G5 ?7 J# n4 ]
var sJsCmds ="" +7 ]0 G- R& y, C+ h2 R5 Y/ X' S
"?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" +
"";( u2 L3 `/ W: d6 j
var s= Carbosoft( sJsCmds);7 t9 Z6 m" g; N* G" d
</script>
<form name=qq>$ Z0 T- N& G: M" |7 G
<textarea name=ww cols=100 rows=10></textarea>0 A# A1 ?8 H) Z0 G7 z8 k
<input onclick='ww.value=s' type=button value="解密">7 z7 \& _) }/ [, Z8 j/ S0 I
</form>

9 m7 G* h7 E2 ?
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：3 V/ g4 O; e) ^# F/ Q2 k
# O5 R+ R% g/ O2 n  k* a4 W& n/ B
<HTML>+ v# ~! Q  r# `" ]. s) L
<BODY>% {6 t3 R/ C' l" G8 G, S; G
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ m1 J8 Y# _( `2 U9 P" Q
</SCRIPT>
<SCRIPT LANGUAGE="javascript">1 ^3 V& p6 Z" m2 @' `# A! ?; R
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>9 S6 X- d' Q' `# g3 g
</BODY>7 o2 m% U% J6 c/ E- K0 S
</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：: w5 G. C2 {. x( z# m
# {( T3 B6 {0 v3 v1 W# H
<HTML># o! v9 @! U! }
<BODY>* E' w2 v9 v: y5 F( o( k. f$ x
<SCRIPT LANGUAGE="javascript">2 Y! D7 r- e: q$ a
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ i2 Q$ x5 P, J' ?; t* f
</SCRIPT>' S1 F# `5 b! S$ k/ X0 R
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}$ e: E4 r9 h" c' ?' S' T6 N
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>  E$ ]' }. o3 m8 {8 j
<SCRIPT LANGUAGE="javascript">1 c$ W* H2 K. M6 h0 y: e" ^
Decode();' U, U& Q# \/ s2 t! o9 x- D5 r
</SCRIPT>
</BODY>0 V! P1 A- c8 A# Y5 l/ \) M: h
</HTML>/ U+ P2 O$ d. W$ y: d

　　哈哈！！:=)是不是很精彩！！

捌玖网络 89w.org----致力于站长学习交流

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