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！！

方法一：. T4 \( Y- j% ^/ |
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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：# l" V2 c, T" `; N( X
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<HTML>* k1 r+ X: `" m% ^' D4 H
<SCRIPT LANGUAGE="javascript">1 d2 W3 {1 D  C8 B- x1 [
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"# F/ t" U: [( \& q. M/ P
var NewWords;
NewWords = unescape(Words);9 F" K/ S# n7 ]7 [0 f$ p( L' ^
document.write(NewWords)& G, k/ P2 `# {
</SCRIPT>
<BODY>! d" a$ ^+ |/ f0 c( B, ]8 t/ x
</BODY>/ Y6 o2 a+ o$ H5 U8 y* A2 r
</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：+ U  t5 I, p, [* ?/ K

<HTML><SCRIPT LANGUAGE="javascript">- H3 p2 ^" e2 v/ Z
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"9 Y( Y2 m, B. q& _! w1 B# p, ~; Z
var NewWords;
NewWords = unescape(Words);" g  E, P/ q% x
NewWords=NewWords.toString();7 ]0 H7 B  `3 |2 C& s& `
function password(){3 j% |1 x5 `( b* c, D  r, |+ t
document.pw.txtpw.value=NewWords;
}
</SCRIPT>
<BODY>
<form name=pw>9 ~: K1 D, d+ E& U) o& L! G
<input type=button onclick="password()" value="解密">0 N3 e' ]( U* {& S% H' U
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>+ k2 D0 a) ^: m5 Y( w; z7 V4 ]- O
</form>
</BODY>' P) P, V; p( L& x# h  C' n6 ]% d
</HTML>
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方法二：* ]6 t5 q3 j6 N; K

　　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* U+ c2 w9 {
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<html><head><script># [+ z$ v5 R5 W! E8 |; I! V
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);
document.write (s);9 V1 p  q& v' G( ~) u
</script>
</head><body></body></html>% O3 Y1 C! ?+ F9 e1 I# M

　　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>" p+ Y' X4 b* }, c9 B3 y
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" +
"";- A/ }' g0 _( ~: q8 O  l- t
var s= Carbosoft( sJsCmds);
</script>5 J2 j! y4 E( I, w( j2 b8 _2 e$ L0 o
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>. b2 ^) i6 ^8 P8 i" m, [
<input onclick='ww.value=s' type=button value="解密">! o/ u$ J) O# J# ?# b: J5 j& g
</form>
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方法三：5 S; f* X% m: l" t" n

　　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：7 \) S5 S# U3 O4 X) t/ W- y

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">/ b/ g+ W- |" I9 O0 i/ J1 [
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}* ^. J# T  C4 Y' Z) A
</SCRIPT>/ o7 U) I/ a! _. m2 H) ?. }
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">
Decode();
</SCRIPT>8 D+ ^  I( w$ q/ V- m$ x7 U
</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：, T% a8 t9 `/ _- W. U8 J& h
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<HTML>: `4 v' Z( Y6 d8 o- W# E
<BODY>0 ]" q) ~& k8 n) b+ v0 f
<SCRIPT LANGUAGE="javascript">* K# G6 ?1 }( r0 b/ h% o/ O
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}4 R3 w- j/ p+ ^0 b" D1 z
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}& I, w% M  v" y0 W( f
</SCRIPT>
<SCRIPT LANGUAGE="javascript">! S4 y+ ?  i; d6 _
Decode();
</SCRIPT>" e# F8 l* Z* D! H% U2 H- B
</BODY>0 [6 k. z) e5 M4 a5 F8 E9 X: L
</HTML>

　　哈哈！！:=)是不是很精彩！！

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