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！！: W8 o+ ?# x1 s2 N$ d

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方法一：- ?6 G  o, P, K2 T* @, W, S7 v4 J

　　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># w7 [5 [. }+ t+ l* S
<SCRIPT LANGUAGE="javascript">+ w$ c& [+ g# Y6 H. Q
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 a4 L3 B2 }  c$ f
var NewWords;
NewWords = unescape(Words);
document.write(NewWords)( E$ z/ I0 z) c, L6 h
</SCRIPT>! O. @! r) L) g, W" ]
<BODY>' E5 r" X& ]! G, Z3 @$ p
</BODY>
</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：
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<HTML><SCRIPT LANGUAGE="javascript">* i, h' i6 E7 i( ]
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(){2 `: C/ }$ W. B2 g' \2 A* t2 W
document.pw.txtpw.value=NewWords;2 n& u# O0 Z3 `1 T  k+ N2 v
}, x1 D8 e' f- Q6 \- ^3 I9 o; K
</SCRIPT>
<BODY>/ t$ r; e' Y" B1 v# O7 v9 F# H: l
<form name=pw>6 e/ c7 }+ h  c: ]
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>  V# [; N1 C9 s  `# Q
</form>3 I* E( x# n, y5 i4 q
</BODY>
</HTML>

方法二：) W, o2 Q" G) {+ C9 t

　　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：1 M, y) B* W. }2 i
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<html><head><script>5 c# ^$ d# S  P6 }* n
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 ); }( o: h# {( Z8 l* _# a
var sJsCmds ="" +5 r. Q# G; i( u+ K6 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" +
"";
var s= Carbosoft( sJsCmds);& \+ B) P( c6 m  c. U+ e
document.write (s);
</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>
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 ); }- w+ ?% e; n( s
var sJsCmds ="" +/ g; h9 e& f% a5 T4 J4 v
"?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 J3 N6 e1 o3 k8 X+ s! s+ h( N
var s= Carbosoft( sJsCmds);9 y# h8 O/ H# ~9 ?  C1 r
</script>
<form name=qq># _; s) C# o, Z  P8 c0 l
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>0 k2 T( j) L. {  m

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方法三：

　　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：  Q% N/ T0 }- V$ i& z. r! r
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">4 [3 c2 c8 O( }3 F, b9 ~/ k
function Decode() {1 {( D: e$ @4 s1 ~, B7 D
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ n1 J+ V& C  K* S. |  I7 U
</SCRIPT>
<SCRIPT LANGUAGE="javascript">9 v$ d4 E8 u8 x5 |' O
function d (enc) {document.write(codeIt(key,enc));}# z* ]- n/ x* U( M
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}! I& R% o1 X. M2 s+ X  x8 j
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% h/ V; L* g1 `) Y, D' }, l0 q
Decode();
</SCRIPT>& L. C7 u7 r9 h; h' N* r
</BODY>/ V* ?0 H- G- c  h9 K( W2 f
</HTML>
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　　还原的时候，也必须每行单独解密，用下面的方法可以看到源代码：2 }6 i' h3 n1 N7 z5 w
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<HTML>% D& M, a- W# v
<BODY>
<SCRIPT LANGUAGE="javascript">0 a  }9 s' R' ^( Y+ \' _3 I
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}( u% W7 K* e, X8 Q
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}, A3 a3 P+ ]; ~2 l5 h( m
</SCRIPT>2 ?6 S% U& k  b" c; _
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>  b6 N" ^, d$ [
</BODY>* i4 J) c. \$ k; u7 |& M
</HTML>* ?! D% a6 z5 e  S4 T
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　　哈哈！！:=)是不是很精彩！！

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