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！！  r8 ^& c. |$ E4 C, z8 i

方法一：! q  z- o) y1 M; `% 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>1 M9 l$ I' d9 k) \
<SCRIPT LANGUAGE="javascript">" F" S9 q% f& H. s5 p4 O
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") n' y$ D1 I0 h9 z) ^- m9 V
var NewWords;
NewWords = unescape(Words);
document.write(NewWords): z; i' L# `- g, d" E% M
</SCRIPT>
<BODY>; s2 K5 M0 W$ z; y4 y" H
</BODY>
</HTML>0 y' O& }0 S4 N- W: N1 f

　　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：) k8 o0 U7 ]/ ]! H; i
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<HTML><SCRIPT LANGUAGE="javascript">+ B0 R! Z, g. I3 w, m
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);
NewWords=NewWords.toString();5 a* J2 G# H9 b4 g! n
function password(){: j" m+ j/ c- F3 d
document.pw.txtpw.value=NewWords;
}6 L! Y7 b4 g9 p4 y: @$ e1 ?) x/ e
</SCRIPT>$ ~$ B. k8 B( F  [6 h. p
<BODY>8 }: X/ k3 G' V: ?* d$ b
<form name=pw>/ M  k0 v# @! \, u
<input type=button onclick="password()" value="解密">
<br>: ?4 Y) b2 C8 w5 F, R
<textarea name="txtpw" cols="100" rows="100"></textarea>& y; w* r+ f, h3 k8 q
</form>2 Z: I, g5 a* E1 H9 r! ]
</BODY>* U+ \( b6 Q8 g
</HTML>$ k( d0 J, A- i: f4 ]: [& L: K

方法二：. |( D9 o) Q; X* v# z7 G

　　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：' w5 f# b% {2 R0 ]0 n
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<html><head><script>$ A/ }0 h$ @; T" v' 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 ); }
var sJsCmds ="" +% N. G- I4 C% M" q' r
"?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" +, G  ^8 p5 t& M) B
"";
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</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：/ M, O8 z6 H2 n& m" M4 P: Q  o9 ]
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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 ); }- @" C+ |1 m% \' a4 r
var sJsCmds ="" +9 {' K( _0 j2 V3 l8 Q9 m1 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" +
"";
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>( X( n5 e2 w" O1 E3 `! D% x; M
<textarea name=ww cols=100 rows=10></textarea>+ O; p# n8 ]6 V0 _
<input onclick='ww.value=s' type=button value="解密">
</form>
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方法三：" n, A9 H6 n' e6 J, m9 s
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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：$ s2 P" $ Q$ N! ^8 }, P

<HTML>3 I3 ?4 b$ ~* ]. e, P  d8 L
<BODY>
<SCRIPT LANGUAGE="javascript">1 V4 $ C( G! W* U5 ^. x5 F6 [2 g
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}5 B) i& Q: ]& D- S
</SCRIPT>0 a8 O# m: d; f
<SCRIPT LANGUAGE="javascript">5 |9 i. b" o* o$ }5 s
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}! h1 J' m+ h; u* }
</SCRIPT>
<SCRIPT LANGUAGE="javascript"># k( o7 ]0 V! u* H: a4 C
Decode();% U' R9 n2 a& ]% o
</SCRIPT>% C) l6 e$ L6 _- J  I2 ^
</BODY>
</HTML>2 Z* O8 S$ k* i, G6 ?
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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：
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<HTML>/ i& H. V2 f6 m5 e0 f$ |
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}; o: {7 O4 J) s, q# {4 a$ F
</SCRIPT>" e5 g, I9 L6 n) A
<SCRIPT LANGUAGE="javascript">. Y. l" f) N' h* h8 n
function d (enc) {alert(codeIt(key,enc));}2 J/ B) |% X+ y5 ?
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">' y  k$ {7 V" F/ L' O2 g
Decode();( i! o  J4 u# O
</SCRIPT>0 p( p. B& _2 q$ U
</BODY>
</HTML>& C7 Y3 s, j1 j1 ^8 J' v

　　哈哈！！:=)是不是很精彩！！

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