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！！

方法一：8 k2 H- y4 z1 k& O
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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：2 Q( T& m( ^% u1 ~6 l2 t

<HTML>
<SCRIPT LANGUAGE="javascript">$ u# |3 m+ ~7 ~5 w* P- b
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;! q7 L' p+ \+ y! F* j. O/ q% d
NewWords = unescape(Words);( H4 ^3 p( |' o, ^+ G! g0 [
document.write(NewWords)! d$ X- B. M" X3 S  P% {1 ~
</SCRIPT>
<BODY>' O& a" G9 b; }& }, L5 |/ j
</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：4 w2 y) x* v2 {+ b, o

<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"8 D  ~3 u7 j6 I8 B
var NewWords;8 b9 J: A! z  N
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){5 H; V. W/ r$ Z9 x0 o2 n1 D  `
document.pw.txtpw.value=NewWords;: \) M5 o1 ?7 w, j' h. F
}
</SCRIPT>2 l! ]( q- n9 O% t" d- [1 M
<BODY>
<form name=pw>/ A0 i; l6 [4 J% _" I0 W6 O
<input type=button onclick="password()" value="解密">& J# g" s7 z5 A1 D- A4 i: R) M, D8 J
<br>( \3 J( j9 i6 O: W& P/ Z+ L& t
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>5 Z. r: h" d* I. C, Q  x

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：5 r9 p. J( x9 B: y4 l; Y
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<html><head><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 ="" +
"?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" +4 H1 J. M$ h& ^+ i5 s$ S
"";5 }/ _; i& C3 [' K/ S
var s= Carbosoft( sJsCmds);+ l- K. F* l- ^0 J4 f3 }
document.write (s);& P4 y( Z. i1 C. b' [" H/ J# ?! g
</script>
</head><body></body></html>9 d0 Q9 A' d  ?3 K$ S
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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：

<script>' e% f  b2 X/ I0 c- M$ N: f
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 ); }6 b" a2 U* t. H1 A
var sJsCmds ="" +3 Y( x. ~2 B  Z
"?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" +1 h: e( Y7 c5 g5 w
"";
var s= Carbosoft( sJsCmds);4 u% p& M! {2 Z% r2 M, h
</script>
<form name=qq>! c- M) b3 L" N1 P5 a
<textarea name=ww cols=100 rows=10></textarea>( x/ n8 T. s1 G8 `9 a
<input onclick='ww.value=s' type=button value="解密">
</form>, w7 ]* G. w. ^% n
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方法三：
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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：1 ]- C5 V. T3 d2 n, p5 o

<HTML>/ M8 J. q: y4 H# L5 m/ M$ b
<BODY>) s1 ~+ p" P8 O5 ~+ E$ K% J" K
<SCRIPT LANGUAGE="javascript">
function Decode() {9 N/ d8 d' p5 j
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}9 D$ S5 E8 R% ^" v" s
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>" j' h( {6 F! [/ I1 `
<SCRIPT LANGUAGE="javascript">9 j; _* j2 T/ T8 p: q5 A+ s% @8 f
Decode();8 I6 t  U) V9 |% M2 E: `6 P
</SCRIPT>
</BODY>) u+ L: n% s2 o0 g2 o  n& t
</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：

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {. K2 A& I+ X3 d& |& j6 A
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}" _# f+ K' n$ @+ [
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}/ D7 _  J# g! ~) \) b/ I
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}6 k4 b5 y: O/ n+ n  I$ s7 q
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>1 B( l, w6 z3 S5 |
</BODY>( K5 U' [: V1 a) W0 K
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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