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！！% v- a1 u9 c* F  J2 e1 v2 I

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方法一：
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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>* F, c$ q5 [/ }1 y$ _( J
<SCRIPT LANGUAGE="javascript">& N$ Y2 G4 i; R6 i) M8 P$ u
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"8 k9 h" X' I" N$ c0 Z
var NewWords;
NewWords = unescape(Words);- J& J! `! z& k: m4 G0 ]. m3 M
document.write(NewWords)
</SCRIPT>
<BODY>
</BODY>
</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：
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<HTML><SCRIPT LANGUAGE="javascript">9 {& k: t& y% `5 _- m2 o
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"- D* I6 A* J) D. _( w( L" x
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){9 _, i5 A3 i. \% P
document.pw.txtpw.value=NewWords;
}9 |. U! I4 A6 d" z' Q
</SCRIPT># X5 m9 ^0 }+ ~2 s5 v9 V. Y9 Q
<BODY>( m" U2 Q/ \! G4 K$ l- V
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>8 G2 ]- e+ P+ D9 y. O$ H: p+ \) Z* z
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>

方法二：/ c: X+ O0 P0 f1 \, K6 s

　　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：7 q3 T% I4 s  v/ C2 a6 G, y

<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 ); }- \/ c6 \2 [' @3 l( a
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" +- f3 ^. N6 H6 g% l: g
"";
var s= Carbosoft( sJsCmds);$ @% i% D6 W8 I. V  Z4 @  q( d
document.write (s);
</script>
</head><body></body></html>  e3 J  r: ]  s

　　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：9 Z# J% S/ o, k& |
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<script>$ {/ S# @0 a; |& h6 q
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" +* b# s5 U1 A9 s' F' Z7 M
"";
var s= Carbosoft( sJsCmds);
</script>" v- U3 [" q9 B# g7 h3 d( G. ?. I  J2 ~
<form name=qq>/ A7 G2 ~* G# t$ F5 R5 f4 A9 J6 Y
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">5 |( Y8 E" c( h$ P# E' L, v8 e
</form>' n* p7 h- P  o; w% g( L
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方法三：

　　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 C  i+ t. _. h. p& E. Z

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">2 i& \; i& _- q) v  A6 E8 R
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">3 Z  m0 @& v; J
Decode();. a3 X) k# L  Q$ q7 u. t: O
</SCRIPT>  {* S, k4 i  C( d
</BODY>
</HTML>7 y* z4 Q& p. ?3 W0 l0 H; f
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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：5 `% k: T" D& l3 {3 ^

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">& u4 l5 \- K8 y9 Z9 [
function Decode() {+ c" n! e7 \, E1 Y& n% c0 F
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}2 \- A2 I; w. M6 z3 v
</SCRIPT>. L3 D. j, U* @0 j4 P
<SCRIPT LANGUAGE="javascript">0 l# H4 E1 B% C3 L3 g
function d (enc) {alert(codeIt(key,enc));}3 I2 G" t: H. q  l/ b1 Q
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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();
</SCRIPT>( N% q, G0 J4 V3 s4 U
</BODY>; v, \2 f2 \% n0 U
</HTML>

　　哈哈！！:=)是不是很精彩！！

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