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！！; }+ ]  a7 e6 a: L6 j

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：
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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"2 m6 _. P& V7 `) S/ \
var NewWords;+ c. v- U. Z% f1 L- K8 h% J$ N, W
NewWords = unescape(Words);
document.write(NewWords)$ X3 Z6 c  Z! ~
</SCRIPT>0 n6 X4 v5 Y. m2 B- N5 |
<BODY>% D4 o" {- u( z1 G
</BODY>$ N  V, Q" S% a2 \1 \% o8 G: }
</HTML>
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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：

<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". }1 v, T" A. D
var NewWords;
NewWords = unescape(Words);/ [9 u( u- y. O
NewWords=NewWords.toString();: _  v' T1 n8 J1 P3 k  ]) l- |5 W
function password(){
document.pw.txtpw.value=NewWords;
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</SCRIPT># F* z* ^$ V* T0 t
<BODY>& e) x, v" V1 l; c$ e, B
<form name=pw>
<input type=button onclick="password()" value="解密">/ r/ T1 P* y/ U/ F
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>3 [- ^7 U) z! }
</HTML>4 D' F1 Q. n& o+ d2 w) m4 y, J

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：" j! x: s1 f1 w5 |$ U  @1 h" K

<html><head><script>/ ~" B/ K0 }# o; E; {6 N! {
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);+ H$ f( L/ H* J1 H% b
document.write (s);" O% |: T, c+ F6 d
</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：. M! P0 }, ]* g' C- D- k
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<script>. m( n% n& u/ s4 z3 |0 R6 M
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 ); }  I- i( m# Z) ^( u" v6 [
var sJsCmds ="" +9 \! a7 [. u2 V& ]( C6 K$ K2 m
"?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" +
"";& x  g4 {' W5 @
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>  H2 K% a7 n# q4 t8 @5 d# X
<input onclick='ww.value=s' type=button value="解密">' Q) a: t9 \- {+ ^* ]  a
</form>

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：8 m# K1 F0 ^* F# E: k( T# e

<HTML>9 o. h7 m" F2 ~7 [
<BODY>$ }7 _) \5 p; D4 d' H$ E! g7 h
<SCRIPT LANGUAGE="javascript">, ]$ T" T0 F2 m6 `( f  ]
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}* w; E, N" O2 V# o9 t  O! Q" d) O
</SCRIPT>
<SCRIPT LANGUAGE="javascript">0 ^3 v+ i2 ?8 L6 D" Q
function d (enc) {document.write(codeIt(key,enc));}/ G+ T& \% {6 K$ C# v
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">3 Z# V! B1 D" |9 \) g
Decode();
</SCRIPT>, y3 T0 P5 m- q* @& ~% f
</BODY>
</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：) Y  a% V2 ~8 P' _+ j- h1 v
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">( V& Y4 }3 A+ S( y, w5 ?  F7 @  W
function Decode() {! R' ]2 o6 f* H( y; o! J5 c2 J9 S
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}) J& P* i3 b( H/ g% C
</SCRIPT>
<SCRIPT LANGUAGE="javascript">- g$ E& m4 {% R5 n
function d (enc) {alert(codeIt(key,enc));}' H" ]* t! j  V1 T$ {  A
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>3 u4 ~; e* o4 [* V) L1 C2 B! R
<SCRIPT LANGUAGE="javascript">$ J4 ^$ L" J- s6 w9 A5 d
Decode();
</SCRIPT>& }* s# z7 D1 A8 M' c; n
</BODY>
</HTML>0 I8 B: [* C6 y
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　　哈哈！！:=)是不是很精彩！！

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