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：- L' u) |2 }7 L" u( v4 l, L
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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：. g$ C3 |6 u6 |: H! [/ @; y3 Z
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<HTML>$ n6 T6 o* [/ j/ ?) A
<SCRIPT LANGUAGE="javascript">5 Y) _7 s% e+ _$ G0 ~+ W8 v) Z
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;4 X5 {$ ?9 a7 G9 u+ J
NewWords = unescape(Words);+ P! g3 ]+ v( v' V2 l8 w: L
document.write(NewWords)5 E- L" s3 |9 s3 l3 ~2 i  K2 F9 b" ]
</SCRIPT>! P& m2 d4 E9 g, T( y9 K* V7 w
<BODY>* N9 P5 c* h# h$ z$ f" s* k, J) {
</BODY>9 ?6 ^  E$ Q& O
</HTML># N# k7 A' o: t" S' _

　　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">
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(){# v! V, g; V$ B" [: J- M8 ~% o
document.pw.txtpw.value=NewWords;
}6 g  w  _& h# W* [! ~
</SCRIPT>
<BODY>3 b  D3 b! s8 ~) W& q& x  m) g2 ^
<form name=pw>* ~' [* g( u! ~. ]5 c
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>' d* k) z, I, B" D# r
</form>7 ~1 y; [4 @3 q( `# Y
</BODY>5 u+ z8 i8 t2 X: z
</HTML>
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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：+ K' `" N9 ~. b/ A' m, l

<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" +2 j, {1 n1 T2 p) C4 q/ O
"";
var s= Carbosoft( sJsCmds);, ]$ a! k: h$ J4 F
document.write (s);3 _5 e3 U8 f4 Y- Y% N
</script>
</head><body></body></html>, F) @* S* X: g  E" l
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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>4 P2 G& \5 Z2 B) g6 V. Q" B
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);
</script>
<form name=qq>' Y$ G( n0 u6 L
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>3 j1 R- u6 l: E
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方法三：$ J) ~" i; w1 ]4 P5 b8 @

　　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：6 M* \! [7 m2 r3 C) u% b7 w% s

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">' q* F: V& i, e) z7 W0 Q/ m, i; `! k
function Decode() {9 s3 N; v- Q" N: [
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}5 s. @  W" c* t* |
</SCRIPT>6 e: z. ~- |; z) W9 X: G9 u
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}4 X, S; i/ Y: B( G. _+ s
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}7 J2 q9 U! O$ K  C; @
</SCRIPT>  i! ^; s; i0 X2 ^! t. y7 }: s
<SCRIPT LANGUAGE="javascript">
Decode();2 Z5 G$ ?) F* A5 h4 a) C6 i! B
</SCRIPT>6 M, P; u+ H0 K1 }6 V  K
</BODY>
</HTML>- S  ]2 @% n+ m6 r$ W/ r5 q
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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：

<HTML>& c! E4 w. ~* x5 Z3 o
<BODY>3 Z) s: P1 @' T' s! f
<SCRIPT LANGUAGE="javascript">$ r4 P4 l# c7 S1 `& ~" b8 d6 U
function Decode() {3 p' o' j: {$ c# D
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}2 J& P& H; L/ D  W& o
</SCRIPT>% P4 H+ N( M/ H3 q8 P% H  Y5 i" O
<SCRIPT LANGUAGE="javascript">% Z' g3 V+ e: C% v: ]0 |
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}+ J! O+ \5 C1 |: E
</SCRIPT>4 S1 W$ K" f/ w" V1 x% k7 L
<SCRIPT LANGUAGE="javascript">8 d5 P4 L( v& z1 s8 [" B, y& ^
Decode();
</SCRIPT>
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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