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！！
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方法一：' O) q. X2 i8 A: u0 L* r$ q/ [

　　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：! x( U! r' z3 F4 _' D. G) l
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<HTML>7 ?& @& J# `) @; Y
<SCRIPT LANGUAGE="javascript">2 W5 [- N# v" O% 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;: @4 o: m: j" ~& x1 \, N1 I
NewWords = unescape(Words);. K) E; E! b0 W% H  q9 \( n- G
document.write(NewWords)3 j9 S, p& D& w. ~
</SCRIPT>0 v! X& L* u! M# Q6 S/ c
<BODY>8 @/ H2 W* i" X8 \
</BODY>. l( e1 r+ k+ J) q8 c+ J1 L3 }! s
</HTML>- Y/ M" v& P: k! y' {* d

　　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：! Q8 P$ z0 ~+ A/ q
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<HTML><SCRIPT LANGUAGE="javascript">$ V2 s( n* Z9 `5 A
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 K9 P, D; e! r# P8 u
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){( X% G7 T$ \9 r% U. L: W
document.pw.txtpw.value=NewWords;- n! Z9 D8 e2 Q& p% ^/ Q, N9 I
}
</SCRIPT>
<BODY>8 r: Y9 z4 m  r1 z. a" P- @
<form name=pw>  ]6 Y* P# y6 W! z2 C/ Q9 F- E
<input type=button onclick="password()" value="解密">
<br>; ?, a  E0 v% j2 u- K* g
<textarea name="txtpw" cols="100" rows="100"></textarea>6 f0 B( _0 D8 a) B& r; w# p
</form>4 }+ E* H; L* V+ T
</BODY>
</HTML>
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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：) B8 n3 K3 K$ \0 Q9 t0 W! I# J' G
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<html><head><script>9 Q* V5 m- k1 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" +! j* t0 f% ~) ~5 U( E0 H4 H
"";
var s= Carbosoft( sJsCmds);
document.write (s);' q9 e; K0 h' E2 _+ w; \' g' U* ^
</script>& _2 N* f% F' @
</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>
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 ="" +8 R, j3 ], Y7 P0 ^- c/ ?8 y" z
"?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" +
"";0 g( L. Q8 _2 j- o. K1 V
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>- P# h% ~8 h2 }
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">$ `( h5 x9 a6 H" i
</form>8 i4 D2 U4 [! j/ u- h3 y5 x
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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：+ J( U; F. K  g4 Y8 d0 p* R

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">" X" d0 G- u) f1 V6 o
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}2 g; R. o, z8 r3 ^2 \
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>, [( P! w) U- q3 k0 x/ I
</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：
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">- L' W" j4 q% d& r
function Decode() {, v4 r( ?: }' X" ]1 B5 C4 U
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}, a; r6 f# c0 O# S$ w: x
</SCRIPT>
<SCRIPT LANGUAGE="javascript">; }& }; U" F% @. P  s" P( S$ t+ Z
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;}& l' C, s2 K9 J9 w( @8 I; \) g6 F, w
</SCRIPT>% @3 k/ `6 U. M- `& R' B- v
<SCRIPT LANGUAGE="javascript">" [2 o9 O8 e6 U( Y- }# W
Decode();
</SCRIPT>
</BODY>( u' x: b1 a* a  g" P
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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