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！！6 n9 v, b, J' j+ V$ i3 n8 g* y" P

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方法一：3 g$ `( l" [8 s" v& |

　　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：4 ~' Q% f) |! n; {' V- }
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<HTML>& j; b- r( `& u6 l
<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"* n  |" S* G: X. E* i3 y/ O" R8 w
var NewWords;7 l- f5 N( `$ [: @7 |6 B: s0 {
NewWords = unescape(Words);
document.write(NewWords)4 P1 K0 R, u# g- v$ V8 X; a8 V
</SCRIPT>. H/ o2 Y4 K5 V6 k" l; ?# p
<BODY>
</BODY>
</HTML>' E6 \1 W% M7 p6 w0 w5 k* F
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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：
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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"3 Z  I. W( l: K1 g! D2 C! n5 h% ]
var NewWords;! C8 H4 o* y  [: C/ I
NewWords = unescape(Words);
NewWords=NewWords.toString();0 D( C1 v& _. L, e7 |
function password(){
document.pw.txtpw.value=NewWords;- s8 E2 y, E3 d# N1 d' G/ @
}
</SCRIPT>
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">/ P3 Z2 r2 ~- c- q% k
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>7 l& f' F: u' h6 _
</form>- I& D3 u, x# F# \
</BODY>$ X, J1 }- Z7 h% N0 O  s
</HTML>

方法二：7 G* \& S7 h/ D6 h
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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>  Y0 W2 z) R- D) h
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 ); }0 I1 _7 ^) W& e5 G; S
var sJsCmds ="" +0 e( m4 R; 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" +* g$ A7 }0 @* \4 F- ?7 R5 I1 Z- p
"";
var s= Carbosoft( sJsCmds);
document.write (s);
</script>9 ^" k, |3 y1 M$ I# d
</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>
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" +3 \' N( U: Q, t9 T  D
"";, f1 Y/ G- J. Z0 x
var s= Carbosoft( sJsCmds);
</script>8 D1 r( E) o  I7 C- [& b
<form name=qq>6 n' ~: g+ |2 t3 g3 g% E
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：9 V( m0 n0 a9 H" t, Z9 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：% }) f; x0 i5 ~& T9 o/ L7 B/ R; ^8 d
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">% N& c# }, \$ h
function Decode() {$ {6 ]  B$ g- Q# w4 s# l2 T* s
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}$ i, V0 _* l4 i2 ?6 Z
</SCRIPT>
<SCRIPT LANGUAGE="javascript">/ ]2 P0 Z* p) m4 Q. S6 b
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}& V2 S* a, W$ E  u6 T* e5 S
</SCRIPT>$ g, o7 G$ w( m4 |$ S( l* u
<SCRIPT LANGUAGE="javascript">
Decode();/ G: X+ e5 K% ?  _1 x
</SCRIPT>3 F2 h4 r" }, ?1 m7 ~
</BODY>6 P1 M! r+ S* F: x
</HTML>
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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>4 Y0 i" M: h+ \* U6 A  u
<BODY>6 n# @- l4 n* k5 W- ~2 O
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}# `, `' N: l  m5 \8 W2 Z6 r# E* E# ?
</SCRIPT>
<SCRIPT LANGUAGE="javascript">, g/ b9 [7 `; v: X+ K3 ?
function d (enc) {alert(codeIt(key,enc));}4 z. F6 V0 r9 T
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">( [  n7 y0 }' R3 R
Decode();
</SCRIPT>
</BODY>
</HTML>7 |4 p: i/ p& l

　　哈哈！！:=)是不是很精彩！！

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