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！！% _0 v# Q2 u% Z7 _& `
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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：

<HTML>8 q. S& k2 o6 d# Z0 d2 w  n
<SCRIPT LANGUAGE="javascript">+ g- U4 i1 D1 d8 t5 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"
var NewWords;2 O# s' _7 B  @6 A6 C
NewWords = unescape(Words);, s9 w& K* P# [" J- s9 `' Z
document.write(NewWords)# E5 l& T( k# o* B. r
</SCRIPT>: v" U* F) l4 `0 k
<BODY>
</BODY>
</HTML>, f! j& P3 s5 q9 }9 W; Q5 P
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　　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：. e4 z' s2 L$ W5 @. A

<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"+ r) u. }" `3 f& M+ K6 F2 o
var NewWords;
NewWords = unescape(Words);9 s, y/ O1 Q: o! b, `1 }: Q
NewWords=NewWords.toString();, G" t/ [  P' o2 K$ a. @: o
function password(){! `2 M6 |8 G# N7 K2 g
document.pw.txtpw.value=NewWords;
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</SCRIPT>+ }( J  [' N/ v) D/ @7 `- m
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">  o$ L5 a: A! u9 i! O& ]& x
<br>) n/ h; e, R$ H8 \4 m% V
<textarea name="txtpw" cols="100" rows="100"></textarea>% q5 {. J4 I: G' y, r) o8 d
</form>: O, d6 I" ^( Y9 C' W2 _, o
</BODY>6 p; S6 b9 `. I6 T8 ^9 {
</HTML>9 @$ |  W  k) {6 `, t1 }

方法二：
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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：% F& L; K1 D: s: n! P
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<html><head><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 ); }
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" +5 J/ o4 V8 H% v$ o
"";
var s= Carbosoft( sJsCmds);' a9 r" t% `1 ?7 J
document.write (s);$ L& p% |) n; q9 N% g# v  r
</script>
</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：

<script>) B  F& I$ Y4 M
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 ); }5 |; H9 a- `. t& R
var sJsCmds ="" +- _/ U9 I" Z* 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" +6 a2 f% T$ s4 U- i9 c6 t
"";
var s= Carbosoft( sJsCmds);/ T0 v- z8 G2 l/ s5 Q0 ]
</script>
<form name=qq>" J8 I$ q( K; q$ N0 _
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">/ F9 ]. W( T8 z( L7 ]: `2 I- n
</form>8 X8 T( J8 }! W, M/ S) w

方法三：! E# q6 z% Z# ]* n7 s0 U$ A
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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>5 b2 `1 M2 I" h' s4 i8 \
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">/ k8 ^9 }% N$ K, u, ~! p  E
function d (enc) {document.write(codeIt(key,enc));}  s  y  `7 n3 t& B# U- _
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}5 n& h0 y/ z% f; {3 I0 \. z- L) x* k
</SCRIPT>1 F0 D9 P4 L6 z$ t
<SCRIPT LANGUAGE="javascript">4 H2 q% P! g  d; x+ O5 Z6 P
Decode();
</SCRIPT>
</BODY>
</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：
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">- v. k. N/ b8 E3 f# w4 d  `
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>" U. S# A# B; b- m6 e3 _, o5 u" g$ |
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}0 w2 R. Q, N% Y, E9 F
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}6 Y. }; K* T; Z- o( Y; t
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>: t" p" F" m: n. C$ P6 G8 \. a
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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