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！！5 P+ }; r1 M6 n( A3 l- `

方法一：

　　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：6 L# w2 ~" [" z8 @+ o+ O  r

<HTML>
<SCRIPT LANGUAGE="javascript">  m/ S# G  W  J  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);5 [& y) b- j6 l6 l
document.write(NewWords)
</SCRIPT>9 h" k! \; I6 K
<BODY>! x( \' F3 m4 c8 }" E
</BODY>
</HTML>7 e5 ]; T& m9 q/ A- _
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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：' B8 C$ d. F8 ^- }

<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"  y: n5 k; V$ w! C, t
var NewWords;
NewWords = unescape(Words);7 ^1 ], J+ m0 S' w8 }: V$ V1 r1 {
NewWords=NewWords.toString();
function password(){4 I5 h6 ]/ p  {2 r6 M) y
document.pw.txtpw.value=NewWords;
}
</SCRIPT>
<BODY>5 `4 z* M5 f9 S7 K8 \4 a1 c* ~' C/ S
<form name=pw>$ h% f/ T1 p( |, t3 r- {
<input type=button onclick="password()" value="解密">
<br>9 L* \2 d6 t1 x6 j1 ^& c9 n* N
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>! R) f" t  a) P" i  X
</BODY>$ H/ @4 R6 J) O) {  s
</HTML>1 r5 T+ t8 b) W- P

方法二：" J9 ^6 _+ X! U: X0 Z
  \# R. q- T0 F
　　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：& D3 u2 K# `$ @: _7 A

<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 ); }% Q2 e, d0 a6 B) ?
var sJsCmds ="" +9 v6 M- J. \: v3 B0 I1 w5 d
"?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" +
"";  R2 v+ M3 X: j& c+ p
var s= Carbosoft( sJsCmds);( k( e2 e  H" Q2 j. \$ }# o
document.write (s);, @% _, X/ p% _& k
</script>
</head><body></body></html>5 |# B/ `0 N# g

　　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：& f6 U0 P) j" L+ H, d2 j

<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 ); }+ k" S8 `% O* L& r8 o
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" +1 q1 s$ b2 [" U3 P
"";$ o, ~, o8 b+ J$ D
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>- \1 J, _; \5 G4 ]' u' k' N5 h
<textarea name=ww cols=100 rows=10></textarea>; v% M; l/ P' C0 j4 ]( Q2 _# E
<input onclick='ww.value=s' type=button value="解密">
</form>
; m, C9 Q$ O/ n

方法三：% E. K8 }( p; s/ T* b" z
  i8 e. V6 t2 C+ e
　　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：

<HTML>2 v- J5 o) V4 |$ ]
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {3 C; d9 r' I" x; `: i
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}; p1 K3 x0 H& v# D) b
</SCRIPT>
<SCRIPT LANGUAGE="javascript">0 D* [4 z" C/ g1 ~- U5 h
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>
<SCRIPT LANGUAGE="javascript">1 N& f) K% d; N; J
Decode();$ V7 z0 N5 }. I8 h2 q. q( q
</SCRIPT>1 A( N* ?) L; W  k; x* G
</BODY>3 f+ n) @7 o0 `% J  r6 @$ ~
</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：5 Q: P* j- ?, j! s( I! v! v( F

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">1 \2 r. C# D- b' H, g
function Decode() {  L4 E9 |" }+ T/ f; m' t
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>( z8 R# U& E' }/ T. D- I, H- _
<SCRIPT LANGUAGE="javascript">1 S" S" w" B7 d
function d (enc) {alert(codeIt(key,enc));}$ e- s& A9 e+ c! ]3 o
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}; {9 l$ X7 Y8 c5 K* ^5 V
</SCRIPT>) |& M& ~4 m; b" \7 d
<SCRIPT LANGUAGE="javascript">/ ]3 V, I/ |- _- _
Decode();
</SCRIPT>7 g# k8 ~" x' p7 p2 F# R6 P
</BODY>
</HTML>, u' Q: K( z- W

　　哈哈！！:=)是不是很精彩！！

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