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！！$ y& ~5 H( x0 b4 \1 G2 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：, s: u/ x0 r7 i& K" m9 b

<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;% ]) y0 F  _; u0 ~, V6 n7 n
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>' X& T; F- M  q" }
<BODY>$ X$ m8 w+ \& b. Y
</BODY>' b# F$ y3 H2 |$ G% p  B! E
</HTML>' Q" T6 O( ?% r- C
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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：

<HTML><SCRIPT LANGUAGE="javascript">" R* o' b2 K" a1 |( {1 ?8 s
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"* T9 j) `2 N' h
var NewWords;
NewWords = unescape(Words);, G1 P4 w- p' X% \3 f+ f
NewWords=NewWords.toString();: o& \6 I! ?' |, i* T4 U, {8 d
function password(){
document.pw.txtpw.value=NewWords;  v) o4 K- y- _9 V3 r- r! N5 l
}
</SCRIPT>
<BODY>8 n" J1 q3 r' a6 H
<form name=pw>" G/ ~/ f+ `% ^) t# ^
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>2 B& Y4 D$ q0 |. ]2 \& v! T
</form>4 L5 v( m. ?  e+ x  K) L& o5 A0 G4 e
</BODY>
</HTML>
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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：( v) l3 _& |5 {. q  x5 N
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<html><head><script>  A" I; K; L. I' [9 x
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 ); }0 x* e: z. \& l/ R( V8 K# U
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 ?2 D6 M% b/ U) l! y* u
"";( j3 V4 \  G* B7 {1 J0 y: q
var s= Carbosoft( sJsCmds);
document.write (s);
</script>9 I: A5 E' V7 w& Y( i# R8 u
</head><body></body></html>
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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：
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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 ); }
var sJsCmds ="" +% P0 E. K  D/ ^0 J
"?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" +9 q/ a2 J# M6 q' C
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var s= Carbosoft( sJsCmds);1 o! t$ ~& @" ^( k  H# K, O
</script>
<form name=qq>9 J# N3 ]: t/ @+ X* O. x) T4 g
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>: X* X" \, B6 c- I% P# u3 u
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方法三：: @+ r  o4 R- _' f+ }

　　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>; T4 e/ {1 w7 [7 b, m0 C
<BODY>
<SCRIPT LANGUAGE="javascript">6 I% U- h! t6 E& @  m" H5 q9 a
function Decode() {  \+ l( Q$ f& I" b  _& q
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}5 n7 A$ a$ G- M  C- F  D' s8 \1 @
</SCRIPT>
<SCRIPT LANGUAGE="javascript">" {  _+ E7 a6 L2 [1 G  L
function d (enc) {document.write(codeIt(key,enc));}) t$ w- l4 g+ `) S' W9 B7 F6 Y; a
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}5 U4 C) [2 G3 ]7 i' {
</SCRIPT>
<SCRIPT LANGUAGE="javascript">  W$ N% u! j! `) F& Y" [% L
Decode();
</SCRIPT>) f, b. |) u0 ^- h2 K
</BODY>
</HTML>
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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：4 x8 O$ `# c; u7 m. y/ d' m# V0 o8 V
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">. L$ T* M" P) C: f4 L6 I5 c- R" T
function Decode() {  y6 v. G* O8 S& A: \2 m1 ~
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}% S9 `# ~! x" O0 ]
</SCRIPT>
<SCRIPT LANGUAGE="javascript">' M% k4 j/ e9 w6 R9 d( r
function d (enc) {alert(codeIt(key,enc));}: N7 ~, v' G' w$ O* ?/ a0 i
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;}" o  C' t; x, Q; }, a: Z/ k
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();" j7 R( \8 P" T& {( h
</SCRIPT>! a# A. W4 D6 n2 n& L5 l
</BODY>
</HTML>& [5 {: C7 }3 T; `' ^: k
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　　哈哈！！:=)是不是很精彩！！

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