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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方法一：7 }7 t- r; I" r
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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：
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<HTML>
<SCRIPT LANGUAGE="javascript">, M2 `( D7 T: a6 `
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"- J5 W7 a" V5 b4 R
var NewWords;& @( z2 U: U/ V! Y" o) l# f, q
NewWords = unescape(Words);$ D/ f5 A$ ^, w4 @7 U
document.write(NewWords)- K7 _, K. |* B
</SCRIPT>. m4 w7 R+ s% `% \" c" h
<BODY>
</BODY>7 ~8 S) L) k- u3 a! p6 y" s( [
</HTML>( {$ Q0 ^- M% H( p5 |

　　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：

<HTML><SCRIPT LANGUAGE="javascript">: i& s& s: O# ?9 @+ A/ ~
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 [# p( a+ r' y6 ?, o9 }
var NewWords;1 t  e) n# k# y1 a/ x0 W9 c
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){& {, K0 C! E) O8 m" [6 \" a& t
document.pw.txtpw.value=NewWords;
}
</SCRIPT>8 a; q! W- y2 y
<BODY>
<form name=pw>& O$ p" w" I3 ^0 b5 V
<input type=button onclick="password()" value="解密">& F! l9 G0 q1 u
<br>3 i( a0 C& _# B
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>3 D- r8 A  B+ m, Q9 A) M- a/ U
</BODY># |+ j- I7 M) f! G5 h5 m
</HTML>5 H. [$ E4 d1 m5 @6 p

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：

<html><head><script>  \. N) X  a$ u: Q9 p  k! D( 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 ); }
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" +$ W9 U' m0 `- X+ E0 X3 }
"";
var s= Carbosoft( sJsCmds);% z9 t0 U. \. G& K$ [" t, D, n( o
document.write (s);5 R$ j7 l: }* s' k/ u* @3 l+ e
</script>
</head><body></body></html>
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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>' M  \. }4 Y8 B8 u3 J0 R
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 ); }* \& S% d, [. o" W1 ^# ^
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" +; F5 d! l) }, f5 \- _
"";- _, ?* h3 F' W/ l8 l6 A
var s= Carbosoft( sJsCmds);( I' N! f4 h+ X" Z
</script>: Q# j0 E: Y0 p3 P7 G) l
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>% X9 |: e# `( p( ~
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：7 Z! a0 v; J/ m" J  a) v% m

　　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 A* Z" q+ M0 Y4 s

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">" D7 I' I# m/ |5 s* j
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}2 p. Y; T; ]- F' ?. d
</SCRIPT>3 S! p; W5 M  T0 H5 [$ h
<SCRIPT LANGUAGE="javascript">1 \2 M! P  u. J. W* r
function d (enc) {document.write(codeIt(key,enc));}$ Z1 |+ {$ J) |
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();6 w5 Y* t9 z4 Y
</SCRIPT>
</BODY>2 Y1 a) `& N/ {1 l
</HTML>% s( {4 i5 S5 @2 o/ l" p6 Y1 _, x. V, A
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　　还原的时候，也必须每行单独解密，用下面的方法可以看到源代码：
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<HTML>. Y2 ^9 o, B5 Z1 d& X: O3 d
<BODY>8 I0 I% F: M: A3 W
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}, T) T# ]2 z: I/ k% M* }
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}" Y2 P) q6 _) s$ i" r; e
</SCRIPT>$ `+ b+ }$ A6 C1 D, n
<SCRIPT LANGUAGE="javascript">8 b$ f: ?% m8 d1 r1 }+ H5 F
Decode();$ k$ ]  N% B. \# k
</SCRIPT>: L# f' Y! a0 C1 V
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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