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！！) e) \6 L: [, o3 n1 J( C1 X! j
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方法一：/ x) f2 `$ f# I/ y! y! i
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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：, ]( `# S7 L/ ?7 U# G  ?2 D/ C8 J, l8 w
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<HTML>2 Q0 ]& Z* d: T5 M
<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": G3 P0 M9 v" T2 ]+ j0 T* v, j
var NewWords;
NewWords = unescape(Words);6 G3 }* ]2 y% B+ a5 L, M6 Y
document.write(NewWords)
</SCRIPT>7 o; P, V) R$ y: A1 h# G
<BODY>" O7 L5 ]& `3 J& s$ G0 v: a4 P  t
</BODY>
</HTML>/ L9 k* D) A3 [

　　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"3 ^, [2 O, X& O# c. }+ z- e
var NewWords;
NewWords = unescape(Words);$ ?8 j! e. c5 I* O3 m
NewWords=NewWords.toString();5 q7 ?" `0 ~- O6 o, \$ W$ o) s
function password(){
document.pw.txtpw.value=NewWords;- P2 k* F4 E3 p5 j* D0 \
}" j. N$ h& a+ Q
</SCRIPT>
<BODY>+ D) y/ N3 F# v1 p# A$ D& M
<form name=pw>) t- i1 N* Z1 v$ [
<input type=button onclick="password()" value="解密">5 O+ G/ k- ?( ?. C/ P
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>, f* W+ K* x( M1 e- V
</BODY>
</HTML>

方法二：* x5 `6 `; @) p5 J' j3 H$ N/ f
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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：6 `3 Q0 n6 _5 v+ h. h. N. Y9 b: o

<html><head><script>9 q8 ~( R1 Z1 R0 F, v/ 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" +
"";6 Z8 g- r3 v; w  |
var s= Carbosoft( sJsCmds);
document.write (s);, E# r" ~4 J6 I$ p
</script>
</head><body></body></html>8 a4 L+ H0 Q% I) i- @% j
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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>- l4 ^, n3 [) w! e3 l
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 ); }* M/ K7 P; C4 T8 D4 i: Q
var sJsCmds ="" +$ s: X* b( A, @) p
"?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% y. l2 ?5 C4 L
"";
var s= Carbosoft( sJsCmds);
</script>' p6 F  a4 e3 W- E( ?; c( S
<form name=qq>: B3 m5 Z6 _7 D/ t7 ^  }- ~$ Z
<textarea name=ww cols=100 rows=10></textarea>. x, Q' R6 y, [* k( M- V  M
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：+ C# E8 K3 E  {3 e  ~4 [
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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>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {8 _6 O8 L/ e2 ^) [7 w$ A
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}& H' R5 ]# b* P$ D( }
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}8 Z; G' o( {8 a# ~6 j/ b
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}# A2 C6 b1 ]2 H
</SCRIPT>) u* \/ N2 a" {
<SCRIPT LANGUAGE="javascript">: V# W) T1 M* |
Decode();
</SCRIPT>2 e" S8 a; h$ |+ \( ^7 {
</BODY>6 ?( M$ ^2 ?& m
</HTML>$ u& W! s' ~7 W+ s1 ~6 V

　　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 U; `% W# D4 d

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {& P6 z( _3 k1 m- h8 H
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}7 t9 B' Z* x9 [' n! @
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}1 B6 @% q2 F2 F# E' `
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">& @" g8 s! B- S6 j2 m
Decode();
</SCRIPT>  ^# m. l3 S/ L* S; e+ ]
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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