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！！
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方法一：, c) ]' A* X% n( v4 R

　　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：8 ~- {1 J" ?7 \: J

<HTML>
<SCRIPT LANGUAGE="javascript">9 \6 R( H0 z" }* o& 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);
document.write(NewWords)
</SCRIPT>9 y1 X1 M$ P1 B2 `* T
<BODY>, k+ G. x# k" j9 A" S4 A0 L
</BODY>
</HTML>; I5 }) Z7 W+ S1 q% n1 S$ ?/ U( ~: T0 }

　　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：8 e$ q8 I# b  r
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<HTML><SCRIPT LANGUAGE="javascript">; o4 A: `, \* x! d0 E: e7 ^
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"6 T2 D) |" d" E
var NewWords;% n/ ]& u/ t" W. H$ Q6 v* i8 c
NewWords = unescape(Words);2 [$ a* M- d" y& d
NewWords=NewWords.toString();) k. V/ A, J! e8 c9 W; x
function password(){+ q( o3 p! b; y% T) X# r  ]* B$ M
document.pw.txtpw.value=NewWords;4 X# u; f4 r. e8 p# k& ~
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</SCRIPT>: S$ p2 y" S  V
<BODY>
<form name=pw>1 I4 `* f3 v0 f* i8 S
<input type=button onclick="password()" value="解密"># z6 {, J. h0 _, X( {
<br>3 o7 \& g2 h& X7 i! W/ D1 v
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>
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方法二：

　　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：3 o& Y( o) g6 Y8 B
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<html><head><script>+ J% A6 d: V* O: N; n' l- @
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 ="" +  G7 M( t$ q( N
"?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" +0 ^8 @- o3 Y* o7 ]
"";
var s= Carbosoft( sJsCmds);" v' O% }5 ^* v- A* n; z5 y7 D5 Q
document.write (s);
</script>- N8 [4 ~* ^3 _# S* v# q4 y
</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：
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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 ); }
var sJsCmds ="" +* i( P" l! I0 Z# p
"?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" +
"";# X7 d- T$ h) I  {- Q
var s= Carbosoft( sJsCmds);; T$ k' {  e, h0 f' U5 {8 Z$ j# D/ B
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>5 R9 V: L6 j; J/ ~' ]" W2 h
<input onclick='ww.value=s' type=button value="解密">! j4 H: h9 Y5 a# h' d
</form>
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方法三：1 k: w; G- x* V7 Z4 Q
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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：: ], R% I; \- W, O# X$ u; @) D

<HTML>* G7 Q! l: [7 o0 K# i" A
<BODY>
<SCRIPT LANGUAGE="javascript">- l% C; T) V* j5 Y
function Decode() {/ S) A2 i" _( E$ A/ B% Z' Q
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript"># T" O7 o$ r' G4 g0 V
function d (enc) {document.write(codeIt(key,enc));}' I3 V' r; B. T, K3 T* R7 u% S
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}6 q8 |# E& _: M; T
</SCRIPT>" A& F+ g$ M$ t7 ^
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>. p* [4 I! X7 g+ f, N* D8 @+ ]8 Z
</BODY>
</HTML>/ F- Z* C( p( H

　　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：3 K) q8 v: h7 A6 c
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {) l, J5 A- p) k! \9 Z, }4 L- W
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>& V  Z" i' y* b' ^* T- q6 g
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}7 L% v- P2 {3 V1 ]
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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"># x# k. }4 F/ S$ p
Decode();
</SCRIPT>* i& j1 q/ |% z' N. ~' S% u# ~1 b
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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