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：# N! j  _$ Z, g7 U7 \' b

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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：
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<HTML>
<SCRIPT LANGUAGE="javascript">2 B$ h$ ?0 z+ t
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"0 D0 J/ w& `0 Y1 I; Y& r
var NewWords;2 d2 G- ]' B3 d
NewWords = unescape(Words);0 y  u0 J1 l+ v% P* |2 Q4 Z# M
document.write(NewWords)
</SCRIPT>7 m( Q% \% i" k' E4 i5 t
<BODY>( o$ x' z/ F4 u! K8 x
</BODY>/ f+ N5 Y1 S( w( b& ?  ?' O
</HTML>. m9 A0 u/ w: x

　　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">$ h' ?2 L( w, k4 q' L( O% q
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);, e, E$ H5 s' ]  C4 x" Y$ D. x/ T
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;
}4 x- \2 |/ P  V$ u* P6 C* w
</SCRIPT>
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>4 \/ z. ]8 m& w" d7 h# P) E
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>4 ]+ q# }  p/ K0 Z$ o

方法二：' e9 g4 E( B/ n7 s
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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：! G$ ?3 |0 l: M3 _% A5 m, Z
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<html><head><script># ^3 A& c4 G; \1 j; @% e. c6 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 ); }% J6 K# E) Z; d; O, V" ?
var sJsCmds ="" +& s; P" Z) h! L, f7 v% j0 o' 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" +
"";( E" M3 j$ g  ]3 c* L
var s= Carbosoft( sJsCmds);* i  D+ p+ ^8 L# F; {* d7 y( p% R
document.write (s);
</script>( V2 d: A3 O) f1 X/ u8 B* k! k
</head><body></body></html>

　　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：0 a- H4 {9 C$ i( m7 g$ A  h

<script>3 c# E' S% E" 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 ="" +, s* S1 J$ m% R3 V
"?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" +- r+ o* a! ^& f! `* `
"";2 h0 [( ~: e; P* d, a5 m1 K0 F! x# ?
var s= Carbosoft( sJsCmds);5 K- I# K& ~: k5 `: n
</script>
<form name=qq>6 Y! z; M2 I+ Q2 ~4 R: h6 R: L
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">% n3 O7 A( J5 z. S3 M# T
</form>7 F8 L: ^/ S4 w
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方法三：* b, {( ~9 \; U' ?! B  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：# K# ]9 v5 ?# D% i: {5 Q

<HTML>+ C1 t. W1 K3 W0 p
<BODY>
<SCRIPT LANGUAGE="javascript">+ ]; Q' _' }" w' A
function Decode() {) j* s( v# y& A
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}8 c" `. q! A( ^; v
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">' Q* Y' H* |) D3 B
Decode();
</SCRIPT>- C& S8 X! \& {1 B) Q0 B
</BODY>! ^5 G- I! J. ?* Q5 n
</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：! ~& n( e! ^- B6 D

<HTML>" n- u" `3 [4 ]  D) a4 s; ~/ c: t% @* i
<BODY>" O/ \3 M+ V, Q
<SCRIPT LANGUAGE="javascript">4 @: Z+ M' {2 o: ]0 g5 a/ v2 x
function Decode() {# Y& i% [2 q5 s; Z
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}1 O3 Y0 M$ O7 C( b
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}; J$ R/ g3 d# A. f
</SCRIPT>
<SCRIPT LANGUAGE="javascript">8 h0 }  S& n* h. {( u
Decode();
</SCRIPT>  h0 a; r5 B* A& \- y% o
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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