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！！
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方法一：% t9 g6 D" ]' l0 n% |
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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：

<HTML>
<SCRIPT LANGUAGE="javascript">- j% ?( M- R5 R) S4 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"
var NewWords;- T2 u( o& F0 E+ Z
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>
<BODY>; U+ Z0 m! `3 S1 b% v
</BODY>5 i$ Y) ~" v4 G* e7 N) }
</HTML>7 h/ X/ S& a8 o9 x: Y' M' J

　　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">- S1 V: |; ]7 o, i8 _1 p% y& u! L+ P: @
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"+ i; P. o3 T: k5 w: M; N+ p: z, k1 O
var NewWords;) Q% D7 \2 r: j0 r8 N
NewWords = unescape(Words);* {+ d; n  U( c. E9 V7 ~
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;/ J% A3 B: [  l3 ~7 }
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</SCRIPT>* J4 J  u0 B/ `) U$ W/ F( t$ U2 ^! D; y
<BODY>6 [( @2 E# _$ Z# E0 N  O
<form name=pw>
<input type=button onclick="password()" value="解密">, k6 V7 H+ b. I# b& [5 H* X! I
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>1 K6 u- v- _6 |' ^9 g% x. S
</form>7 _( h, z/ x9 R: \. b1 {
</BODY>
</HTML>) T+ E0 k% Z4 Z

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：& T" x% k* R1 Q. h* U

<html><head><script>- P7 L$ ]4 k! E  X' Q: ^- ^
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" +
"";/ k) N. i7 T2 D0 t2 E8 A- B
var s= Carbosoft( sJsCmds);
document.write (s);
</script>/ Z% v) J" y+ ?. b1 a2 A
</head><body></body></html>. s& @' U) K0 M. 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：. |  i4 \! O9 r  W2 M
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<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 ); }4 ^  _# ~8 u+ T! A2 U0 L( S
var sJsCmds ="" +! K2 G/ c& o; 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" +
"";
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>5 Z. F, w" S/ d( m9 q2 ^
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">9 v( |" j$ `# l: }( J
</form>( j9 n, v) a7 P

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方法三：6 h1 e$ y& N( W5 q* ?3 W  F8 ~
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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>( w+ v5 o% b* N+ Z; `* I3 W
<BODY>$ j, z( a; W. T
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% n! ^) h: W" [! h  x2 Z
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}5 b1 Y9 H7 `) p2 Q5 y! j0 s
</SCRIPT>
<SCRIPT LANGUAGE="javascript">( Y- }: @4 k3 i9 X
Decode();. A( I9 `" S% C0 O& b
</SCRIPT>
</BODY>, X" F2 _! @) Y
</HTML>+ `- {& E  b9 j* `7 k
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　　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：

<HTML>& D! X! `" |4 v1 G! m5 V! u' w( }
<BODY>
<SCRIPT LANGUAGE="javascript">4 x& D8 N& n4 @
function Decode() {7 A7 n* `& T  `" `, |( I( a
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}$ b) r8 L! D  f8 p
</SCRIPT>
<SCRIPT LANGUAGE="javascript">, w) a% A! H# @' g
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;}; c6 B( R6 ~  a+ T8 @
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>! G8 R% t+ Q& C
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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