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！！. W2 W, P- A+ z. m1 f3 v* C8 D

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方法一：
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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：  F9 x2 Z7 p6 u7 d  l3 Z

<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"
var NewWords;/ s% Q4 ~( h$ s! x# C/ D
NewWords = unescape(Words);
document.write(NewWords), E% E5 Q' z0 C5 {
</SCRIPT>/ x6 f8 d0 V+ d8 c  N" i- [
<BODY>
</BODY>4 v/ f" t9 r: {
</HTML>5 |" G( }  F( L% M4 L

　　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">
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);4 F1 i& T, s$ D5 _6 z4 r2 Z
NewWords=NewWords.toString();
function password(){% t: o, m' f" o7 S8 O: m7 x4 O/ X
document.pw.txtpw.value=NewWords;
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</SCRIPT>
<BODY>& U. q* m) Y6 \4 B
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>4 y3 X* ^% j# i* D9 G- F
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>3 _# D: Z: m. I- M& O
</BODY>, o1 f" ~6 Z: ~, ~
</HTML>7 E6 o* X" q( Q9 T- F: V

方法二：+ E5 x0 L1 U$ k6 ]
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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：
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<html><head><script>9 E( ?( X& {  f) P& J: j
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 ); }: T0 _1 {1 z1 @6 A  P- a
var sJsCmds ="" +- B3 Z" _  S6 M( g1 J6 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" +5 g5 P6 J$ J. w4 U4 r+ p
"";
var s= Carbosoft( sJsCmds);
document.write (s);5 d2 d) j7 X; \( G  a9 B
</script>5 w" N0 z( K! m( m; ]( I  }5 P7 Q
</head><body></body></html>% m" _. _0 L, _& a3 {) `- x  e3 b
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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：" M) l4 \( b. V) U, F& v
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<script>& T7 k; u6 p! ^8 k
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" +% B# Q$ R  b: l1 F$ O/ }
"";
var s= Carbosoft( sJsCmds);- n2 {: s- N5 t/ n. A2 x9 h" e
</script>+ \8 G% s& B8 K; [7 K& q
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>
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方法三：
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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：

<HTML>0 O- ]# L( {4 w2 e9 n; k7 R# M2 e' u
<BODY>; @* y/ T6 m) s$ n; ?, T1 P
<SCRIPT LANGUAGE="javascript">
function Decode() {$ f* ]/ I* h, |: ?: W" i; H' a& ^
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}4 d6 b3 q( x* @7 g: H6 W2 f" S' ?- {
</SCRIPT>
<SCRIPT LANGUAGE="javascript">7 s, ]  F; a# d9 a! {; Y
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>) y4 H+ q/ I2 f9 |
<SCRIPT LANGUAGE="javascript">
Decode();: r# d% y+ z7 J3 u- D8 ?
</SCRIPT>
</BODY>' K, P8 d' D; A) r4 a+ W
</HTML>/ j- @$ A4 h2 K

　　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 v1 V% G: O( c9 _

<HTML>. F: r5 G1 f# r) ]. u$ V
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ U" H0 Q7 s6 P
</SCRIPT>
<SCRIPT LANGUAGE="javascript">! M3 c" F0 l. n, b0 h+ [4 R; Z
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}, M6 L' S8 L' B, X
</SCRIPT>6 \  T, f, b8 J% O$ h
<SCRIPT LANGUAGE="javascript">/ V6 Q- T% W+ t: K
Decode();5 k( H& B9 g5 j+ ~0 x* W- q5 L) [2 K
</SCRIPT>- Y1 Q3 C1 M- c6 u% v2 D
</BODY>
</HTML>

　　哈哈！！:=)是不是很精彩！！

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