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！！

方法一：0 N* L- h! z( I, `% v4 u# l7 z

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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：* E* a, P( h2 Z, l, I8 }; e- }
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<HTML>$ I$ B* f, ]$ ]
<SCRIPT LANGUAGE="javascript">% H' D2 i! y( g6 ~7 L
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);  \) m2 A7 L: L+ n* ^
document.write(NewWords)
</SCRIPT>5 R9 `4 W6 Q- d3 }4 o( A7 }* H% M
<BODY>3 ^) m+ D( I  i: Q& t" r
</BODY>4 Q! M% d* y4 V
</HTML>) L! B$ s; F" _) n6 ?, i

　　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, Z( h  e5 ^
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<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"  M* K+ ]2 s( m7 T/ Y- I
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){' ~" h5 p: n) d$ W; C
document.pw.txtpw.value=NewWords;, g0 U& d' }+ Q- _6 p, @. v
}8 s9 @' h' Z, A+ Z
</SCRIPT>! V4 s, ]. q( Y9 T  ~
<BODY>$ f) N) b; X& n# G# u
<form name=pw>/ R' g5 w$ m' y2 }: u6 G9 P5 E$ _: \8 W
<input type=button onclick="password()" value="解密">. q& W3 G  |7 N2 N2 ~
<br>) H9 H  k1 D7 v2 H
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>; O( i# U; c9 p" a
</HTML>2 E# s- C: v' d8 h

方法二：

　　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：

<html><head><script>( P9 c) n4 y, N( O: F5 l+ I
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 ); }" K% N& i: q0 O
var sJsCmds ="" +/ j* F! r# o& B  P( z3 ^3 U% N
"?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" +2 t3 l, j! C0 m$ k, j
"";) V9 q7 n4 j- \
var s= Carbosoft( sJsCmds);7 F$ r; K5 ^5 q6 I
document.write (s);
</script>
</head><body></body></html>  m0 ^5 `0 z0 B  y
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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：

<script>+ D+ Y$ u3 b7 E; G9 s
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 ="" +3 R- R+ w0 x# b" F
"?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" +
"";: o5 l/ P( @) Q1 ^$ \& Y
var s= Carbosoft( sJsCmds);
</script>: ?/ R+ E7 R* {# O/ h4 N, y
<form name=qq>7 D# t* s* G$ d* q) f
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">" k0 j' u: u; x4 r3 L' p- J% [
</form>! e4 q# [; e: _! O/ H, {* f1 {, b

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方法三：7 V8 N  \3 S3 ?' O" I, K
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　　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：
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<HTML>& g* B# L* D0 D" _5 ?) g
<BODY>7 r1 ^1 X- @: I3 j% w2 {( c
<SCRIPT LANGUAGE="javascript"># @+ q; J/ h7 ^1 }$ F4 }, g0 N
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}- |; Q/ O8 p/ W
</SCRIPT>; ~* U+ p; m" f, u* B
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}( Z6 H% f- K* h9 G
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}3 h+ w" N9 G+ O
</SCRIPT>1 l" G. f! q# V  y" M5 p) A8 I
<SCRIPT LANGUAGE="javascript">* L) |( v9 E: t6 j
Decode();
</SCRIPT>7 Y/ c8 v" b# n0 G8 u: |$ q) x
</BODY>/ D7 }+ B8 O$ P6 [6 o
</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：, D' D2 d/ Z3 u

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}% v9 b& Q" Q0 S" L4 K
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}: X( N4 m# q' m! F8 |0 Z0 q
</SCRIPT>/ x" {8 G3 a" ^, G9 }
<SCRIPT LANGUAGE="javascript">, ?, M: T; }9 e  T9 _' K" z$ B! P
Decode();
</SCRIPT>9 i3 A  `& f, @! l& D" Z
</BODY>
</HTML>+ G0 f- Z5 ?/ u  B* }) h) e5 P

　　哈哈！！:=)是不是很精彩！！

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