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！！! h- u6 q' x+ ]" p) L  f+ Z  t7 K

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方法一：" p$ C/ u. D& r5 t4 Z8 X+ R

　　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>, i+ }5 r" M1 X: e
<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", v3 Q/ v/ Y. _2 R  x* c3 u, _
var NewWords;
NewWords = unescape(Words);
document.write(NewWords)) y3 t% a6 \" V) w6 {) R4 h: u' h
</SCRIPT>
<BODY>& }. \6 C% R* }! M' ?  Y5 Z# {
</BODY>
</HTML>3 c9 f: y6 _3 y% {8 q  \- A
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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：7 i! Y8 s) }  C+ C  `# E* \  [2 E
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<HTML><SCRIPT LANGUAGE="javascript">3 U4 G1 E( R$ @/ I/ O8 X  y4 B" L; u& D4 `
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 e- b$ U  ^$ `+ y) ^
var NewWords;5 p  B3 C" Y. r6 M& {# G
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){$ q( ]# z, t, {" W0 F8 ?
document.pw.txtpw.value=NewWords;$ V4 w2 m9 |( v. Y3 D
}
</SCRIPT>0 g2 {0 B( F* d! {+ K8 s
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">8 ^& q+ j% V" m
<br>! ^" U: s/ M! V' b
<textarea name="txtpw" cols="100" rows="100"></textarea>- ^* ~2 i5 n5 d  H3 i+ S+ D
</form>
</BODY>
</HTML>

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>
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 ); }! V( b# C! k* w
var sJsCmds ="" ++ V8 {# F3 t4 h6 P$ x4 M' N
"?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" +; t. \. y, r5 H8 s( K2 T' o, Q7 x
"";3 j: n: l5 J+ J8 l5 \
var s= Carbosoft( sJsCmds);
document.write (s);
</script>& Y0 Z7 W9 v' k+ I$ [( G
</head><body></body></html>

　　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：
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<script>: K# L0 E$ g7 g  p0 U( N& C
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 ="" +; n$ ^/ ?, b9 _5 r- |! D$ J
"?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  F1 P+ |1 _: k) {
var s= Carbosoft( sJsCmds);; V, t6 q4 |4 ]8 w
</script>/ K* w8 u/ R# i' p" c9 g. ]/ m9 U; U
<form name=qq># Y+ C6 z8 H! o
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>7 M* c6 C  d; }* [5 i% e, B

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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：- O1 S  ]* O. G3 m' Y8 C
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}$ w; e. P" T, N. s: a4 j9 O
</SCRIPT>
<SCRIPT LANGUAGE="javascript">' G& i- Y3 t5 {9 X/ L* v& H
function d (enc) {document.write(codeIt(key,enc));}- n% i4 R" F! E" }5 B8 _, d4 U
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>/ f2 W/ J0 o: Z* i, Q
<SCRIPT LANGUAGE="javascript">* h# ~1 J8 C2 v# i' ?! c' K9 Y5 ?
Decode();3 d- @: I  h; c9 n8 U" c
</SCRIPT>" r" O$ Y8 a0 z2 u* M
</BODY>
</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：
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<HTML>
<BODY>: c, w, m5 c- F" s$ ?
<SCRIPT LANGUAGE="javascript">
function Decode() {& C+ w" P3 P% L! a6 h
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}6 W# f% O, T" I/ N9 X' |
</SCRIPT>
<SCRIPT LANGUAGE="javascript">5 @) C9 l; X. s2 J
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">, \4 x' G8 b9 k* ~  U) Q
Decode();
</SCRIPT>
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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