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：
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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：0 d2 G" @3 ]. x3 K2 L( D+ [
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<HTML>- J' a/ V+ r* s' z
<SCRIPT LANGUAGE="javascript">8 O+ k' S3 C/ U. y! h/ i3 ]  b- N
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);
document.write(NewWords)8 B4 b6 U, s+ S1 g# O3 y
</SCRIPT>% ]1 ]) M/ Q. r3 [9 Y' X
<BODY>1 \, @& ^& _; W. m4 [
</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：

<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", v  U1 v1 _. Q& M$ {. d& G
var NewWords;6 b7 ~. |6 C! I0 X
NewWords = unescape(Words);3 b" g7 q* H. a9 \
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;" e: n& F4 b+ c6 s+ F
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</SCRIPT>: M: R- m+ l1 _0 b. l# |- X
<BODY>6 U% V) R5 \  i8 B2 w* d% U! P- E' d
<form name=pw>* g8 Q1 a' w- S9 j; {
<input type=button onclick="password()" value="解密">
<br>! n. S) A5 F2 U8 Q+ K% E5 N
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>% B6 Z: d( q" o& T0 i- J2 a
</HTML>

方法二：( K1 \2 l( u: X
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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：3 \' I% |. H2 J% `4 [
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<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 ); }% p: i0 Y) ]* @0 c6 L# k: z3 @
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" +9 d- v4 Z% I6 q
"";
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</head><body></body></html>& ?4 _9 k/ H2 M# F" Z% V9 w

　　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：3 s/ {/ E3 f1 `9 T/ _( B
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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 ="" +' I5 N7 G) ]' t2 \$ D9 q/ r, P
"?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" +* x' }% y- _* o
"";
var s= Carbosoft( sJsCmds);! n* X3 {+ d5 ]: J, h6 V* u+ N* K
</script>$ `% O* I; [. E- ^8 e
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>9 n! ~* H; K) r! @, C3 P! C7 T8 @  W
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：, X7 ]" z: p, v8 w" K2 ~

　　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：; |" `  S8 H) R0 m

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {. d" l6 o( \8 W8 t1 s; H" `4 V6 ~+ P
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}( @9 I  o9 m& P8 D* p$ _) j  ?
</SCRIPT>/ e9 q  w- |2 _4 L# A
<SCRIPT LANGUAGE="javascript">5 [' X6 B, Z" K
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>% W7 y, a* M8 A% V, a2 N1 Z
<SCRIPT LANGUAGE="javascript">
Decode();; O: s0 ^8 {8 @; e- v  c$ b' O
</SCRIPT>' W& b0 _. t; a  l3 r% ?1 c2 o6 b
</BODY>
</HTML>) V1 _8 i. w* ^4 d
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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>
<SCRIPT LANGUAGE="javascript">
function Decode() {+ P% @- ?0 K1 s9 P) d0 j
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}& G) I1 ~$ {& r- p* d6 C/ c
</SCRIPT>: E6 v  d( m8 s' Q2 h4 d4 L5 o
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>" g% p1 L$ s: k& v
<SCRIPT LANGUAGE="javascript">% ?0 ^) y2 _- ~  q% i" `
Decode();
</SCRIPT>
</BODY>" F! i5 M8 w3 O8 h0 U1 ~3 f
</HTML>6 T1 n3 `. |1 r2 A7 Z5 y
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　　哈哈！！:=)是不是很精彩！！

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