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！！3 z( o- Q2 i0 H2 a5 J5 m$ g
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方法一：+ }+ W/ r. _( {$ i/ [1 X
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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>$ ]  i7 p: \; q! t0 ^1 Q/ S
<SCRIPT LANGUAGE="javascript">, Y3 |& v, z' V: t  l
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);, {" R8 H+ |9 o5 T
document.write(NewWords)# p7 a1 s+ k4 w" F
</SCRIPT>
<BODY>
</BODY>
</HTML>

　　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：; S4 k9 Y; @; H
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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"
var NewWords;- {2 }" ~& M+ D3 K  A$ f9 w2 }% ]
NewWords = unescape(Words);- {+ B# a0 A5 z7 r. |- L7 t
NewWords=NewWords.toString();# Z. v5 k" u3 q% W* \: b- D# G
function password(){; D2 o+ X! x7 h! g
document.pw.txtpw.value=NewWords;; u/ x8 e9 m+ O3 N
}) d1 |' j( f7 k" J
</SCRIPT>
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">/ F' P  o7 M# L) A: S; O9 B
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>: w; `$ ^! C5 z2 `2 Y# x
</form>
</BODY>1 o4 H! _, c+ o! I% {- Y2 b* S
</HTML>

方法二：/ n' P5 ~) v3 l5 C
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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>) ]3 v6 j8 z1 a' V. b- F3 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 ); }
var sJsCmds ="" +3 o" Z0 ?& f3 [' c
"?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" ++ S: f( y; G' ^- V0 w) b7 a
"";
var s= Carbosoft( sJsCmds);# I3 p; Z, \& p- n2 t3 N
document.write (s);/ P" `  t+ q9 @5 Q. y2 N2 j" m
</script>( S( u2 h; |; T9 ?  ~* r
</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：6 A* e4 O! Z; R' I4 }; x
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<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" +# h  }# L- }& I/ b& K
"";
var s= Carbosoft( sJsCmds);5 s+ ]: }! x: b. D5 H
</script>4 `5 L# {" _0 e1 K
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">7 g( H3 J# R" q9 @
</form>
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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：3 C5 u: I" {+ c! U5 n- X+ B

<HTML>: y& b, V( Y" {$ T
<BODY>, S. K$ Z2 t6 a8 g1 X
<SCRIPT LANGUAGE="javascript">) G- \+ k% R- H8 |
function Decode() {* L, ~, t  p7 W& q+ {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}7 @' o% H+ d2 @, c0 v6 n
</SCRIPT>
<SCRIPT LANGUAGE="javascript">! _) j+ C: _0 k6 w0 f4 M6 N
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}' L/ J  G  S, T
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();0 h1 Q) N$ c) \0 f, ~9 V1 e
</SCRIPT>9 ?4 E3 C. f2 D- U+ n6 G! g# w
</BODY>
</HTML>6 t1 u0 G9 e0 [

　　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>" ?1 O3 n. Z5 O+ H
<BODY>" R4 s8 B! [, E! r/ C1 b1 p  ?/ G+ f) w
<SCRIPT LANGUAGE="javascript">; a# _" g9 `4 B4 I* l
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}) _+ J/ Y  E/ W" n
</SCRIPT>% }- u6 V5 C: L/ _
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}6 Y( t) I: N1 A
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>8 M2 E, a7 j; F5 u) D# N
<SCRIPT LANGUAGE="javascript">7 G! ]" t* d: {$ f% X) a- Q
Decode();
</SCRIPT>
</BODY>
</HTML>

　　哈哈！！:=)是不是很精彩！！

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