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！！$ p6 l$ `% C2 M' d% B9 q, ~% |" F
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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：5 ]$ G/ E& h/ _" E9 E
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<HTML>
<SCRIPT LANGUAGE="javascript">0 I: ?& t) K% G. Y! j/ e' `4 K9 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"7 w3 r0 {( r1 N4 N8 @* L
var NewWords;
NewWords = unescape(Words);+ `" ~1 v0 Q- t/ Z" v; a
document.write(NewWords)
</SCRIPT>% U: a% t& n  ^# V  t
<BODY>5 b* q8 b$ }( x/ I, P/ T2 p/ G) ?  B
</BODY>/ P5 z+ a9 y: i+ n, |6 s2 H( Y
</HTML>

　　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：" W- }$ C, i/ f
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<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;
NewWords = unescape(Words);! a8 W3 w1 ?. U
NewWords=NewWords.toString();: u( o+ Q. `/ l8 d8 n
function password(){3 O2 X* ]: a8 u) [/ v! s
document.pw.txtpw.value=NewWords;
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</SCRIPT>1 W6 q; y/ p' M/ i: f5 n
<BODY>
<form name=pw>2 g- j; G* @; V( W+ l3 m- u8 A* y
<input type=button onclick="password()" value="解密">
<br># S* O3 ^3 H, ^6 p2 x. ?
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>0 a" [" ~9 m# g) M+ a) G* M
</BODY>6 S2 \2 ], f* s$ J4 O
</HTML>
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方法二：! u' E1 P" l3 ?5 o. _
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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：: K/ q1 k, W" h: m9 J0 |

<html><head><script>- r: {( f4 r2 `: l) n  n1 ~" \% o
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 ); }! c! ?0 D, D0 U5 r3 e( p& i* U8 p
var sJsCmds ="" +( N4 }. ~, r/ l
"?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);
document.write (s);* w* \; ]$ U% N& w3 {  u
</script>
</head><body></body></html>2 g* [7 K  a0 m4 Y4 {
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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：) P* @9 n+ q* v
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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 ="" +0 o( k/ R& \+ t
"?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" +
"";  ]" q7 R5 Z% k3 l
var s= Carbosoft( sJsCmds);
</script>8 E% v& s; B) r2 r3 ]
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">9 a$ R" x0 o9 d) V
</form>% ~' z& _  }: X# n: f/ [  R  c" f! K
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方法三：/ Y% I7 y+ ~% {3 u9 _) X; I
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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：+ \, M4 K& j# R; \( F  Q3 s+ z; X

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">+ ^% q4 j5 n6 ~9 C; F1 c
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>7 l* G7 e5 v$ y! m$ [) V
<SCRIPT LANGUAGE="javascript">. w7 R. K: j1 n; l: G
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}; E" l+ x# Y# F, K. S5 @& ]" a' {
</SCRIPT>
<SCRIPT LANGUAGE="javascript">6 o+ s/ Q6 @. H  `3 d$ `
Decode();
</SCRIPT>. @5 [, w! v- j9 R9 j
</BODY>. G& _9 X5 r, s; d
</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：' s  u9 j5 {" d
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">$ ?8 C. D( i5 p9 s. N" U
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>( @0 ?/ m) B. y: }* B9 c
<SCRIPT LANGUAGE="javascript">% L/ l* b+ S) T+ b& y
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">" r. B' H7 u( g* T' |- G
Decode();! I2 B8 m: v+ i& n% k
</SCRIPT>
</BODY>
</HTML>2 }1 q, W. N9 G2 d( I
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　　哈哈！！:=)是不是很精彩！！

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