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！！. f. V9 c) V2 u6 H+ ]
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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>
<SCRIPT LANGUAGE="javascript">" S9 B" F7 d/ c% W' ?8 Q& e' H4 A
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"8 ?, p0 a. [8 l: ]7 f0 U
var NewWords;
NewWords = unescape(Words);! [0 b+ e- M! o+ E: z  R
document.write(NewWords)$ ?. N& o* c5 e- F* Z# y5 e& e) }
</SCRIPT>' A, G1 r& P2 {$ s* |, ?
<BODY>
</BODY>- ^* a, l7 x! V9 X
</HTML>
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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：. t/ J  j, }' u3 W: }
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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);
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;2 Q# }( ]  i9 Q
}
</SCRIPT>- f0 f/ i+ F- x* k1 G
<BODY>
<form name=pw>! f8 }% d1 a- K% l
<input type=button onclick="password()" value="解密">$ Y* d: T5 ?9 o  H+ A9 ~
<br>) N, q8 K0 _3 }5 C3 n- ^
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>3 f. H6 ]0 c3 C7 Z$ n( ?
</BODY>
</HTML>

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：

<html><head><script>( M4 M3 I8 v/ ?
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 ); }2 V* g8 }) f. ]0 f: E& P$ U# I
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" +6 d# R# K9 u1 l: t' `. C
"";
var s= Carbosoft( sJsCmds);3 @/ s2 D4 E, V2 q4 @, Y
document.write (s);
</script>' D; T6 }; h  u5 P
</head><body></body></html>. z5 Y) y) D; v8 o

　　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：+ O2 O5 h- _# C2 a+ z2 g

<script># o2 k* h3 Y5 R3 E: i8 \# q
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" +
"";
var s= Carbosoft( sJsCmds);) Z. T/ Q7 t$ {) E' p* C, Z
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>, S) e+ `6 F1 o4 A& F. F

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方法三：7 j/ W$ ~$ k0 y2 i* `& c/ ^

　　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：& T  o  ^* G8 f! b6 H& `' G

<HTML>2 R9 m* t0 C: [
<BODY>0 u1 e) W0 q  ^6 b6 h0 G& A, q
<SCRIPT LANGUAGE="javascript">, v1 G, G' b+ `. A! p  H1 {3 U+ x/ ~
function Decode() {, [9 c5 J, I/ V3 r) v# v, r" v
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}# n3 |# d7 M& Q3 y) ~
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>/ N  u0 `* p! W& D8 o# ~/ }
<SCRIPT LANGUAGE="javascript">) p8 v5 r/ |6 U
Decode();
</SCRIPT>& x! L5 g1 u2 a! H$ u
</BODY>" f9 e8 I9 T6 C% r) ?& g: O
</HTML>" |) {. |) i$ S- ~* K) {6 s7 _% s5 e8 ]( Z

　　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：9 T& ~, X3 Q7 x) j0 f1 n
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<HTML>6 r" {" _6 l  K6 T
<BODY>
<SCRIPT LANGUAGE="javascript">' g3 {$ q( _+ p+ Z2 ~% x5 A! X) D
function Decode() {9 S( ~0 r: E) c6 K; r) Y( a4 C
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>7 u1 V- ~9 H$ K' o9 N6 }3 ~
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>0 K9 i# @' P! l$ N3 Y, A3 b. J  R! o
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>6 V# ~2 ~# o* r
</BODY>
</HTML>+ X& J2 q+ t2 `8 _' @* g8 {9 I  u0 {
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　　哈哈！！:=)是不是很精彩！！

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