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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方法一：2 A6 z; E  {" X9 E6 [- B2 D( K3 p3 Q
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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：1 Q: H7 `2 r& ]# d; `; U
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<HTML>. v/ V% Q- H5 |( j' ~$ e
<SCRIPT LANGUAGE="javascript">: o' `0 F' V6 J8 y0 }" 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": J: s: i) z$ w( _7 S
var NewWords;
NewWords = unescape(Words);5 w7 {6 O0 J" b- |' s) M
document.write(NewWords)
</SCRIPT>" _5 H' S2 q$ C! G9 D
<BODY>" w9 t; A: ?- M. [! q, i# N, u
</BODY>1 V( N0 s) B2 s; N% A8 U* E' Z: J
</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"2 b" U- b( [" M8 V
var NewWords;% M! n/ V3 E3 K+ V$ _8 I  Q
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){/ ?1 [# }/ ^6 i/ u4 {
document.pw.txtpw.value=NewWords;9 m2 @- m' M/ I5 C& d
}  `) z( w  `( m1 q2 }/ _
</SCRIPT>8 y5 m! e+ Q! w! y
<BODY>
<form name=pw>& {' B! Z: Y7 b: Q, b+ _, h6 x
<input type=button onclick="password()" value="解密">
<br>2 A6 X; C- t, c4 ?' a  s9 Z+ ]2 N! E
<textarea name="txtpw" cols="100" rows="100"></textarea>2 {% I3 V$ H% C
</form>
</BODY>
</HTML>( T3 q2 b. @1 E4 B' t% ?7 o

方法二：, G2 Z  \8 W3 S8 c

　　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：
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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 ); }3 b0 D: V4 O4 U
var sJsCmds ="" +. Y/ }! z& b4 f1 I6 n5 ?, [! {
"?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" +" ?; c5 ~/ _2 r" w1 X: A9 m
"";, ?  z2 K& b1 H0 Z% q+ d
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</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：# \+ W+ X9 ?- T+ k3 W
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<script>0 G/ o* W" t' P; h7 {$ m" q. ^
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 ); }  k' g) M4 Z1 j- ^/ i. \- M$ f5 t
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" +; ~6 ]5 i* h" `. \: o9 f3 F$ ?
"";
var s= Carbosoft( sJsCmds);# U5 y0 {  l. a' L4 ~9 _
</script>  I& q! H. {- m' y0 k
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>" D& ]8 C8 T: H$ N# B, y& s" W
<input onclick='ww.value=s' type=button value="解密">
</form>
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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：

<HTML>
<BODY>- g3 H( b4 I0 i6 d+ K& V
<SCRIPT LANGUAGE="javascript">
function Decode() {7 H( Y  Y1 ~7 z$ u* o
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}. _; ^3 q4 \- n3 ^, ^$ h
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}7 D4 @" [  @& N# b5 z
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>7 m7 e2 z  s* ^) h* R+ l
<SCRIPT LANGUAGE="javascript">- e8 O. u( M4 }, E. F; _/ a
Decode();
</SCRIPT>
</BODY>% T4 R6 q3 s: Q  t, ^
</HTML>4 c& f) r7 {% f% A

　　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>! x: I  m. c3 k
<BODY>6 `# x, `% S+ d  \
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}% r" v7 b) `! A3 O* d. \2 m, x, Z
</SCRIPT>
<SCRIPT LANGUAGE="javascript">; [2 k. n0 ~! h+ \1 P  O7 `
function d (enc) {alert(codeIt(key,enc));}, U% m( r( [7 H, g  I
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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();9 Z! V/ a* G* l9 c) f0 J6 k
</SCRIPT>
</BODY># G, j, a6 H4 k5 X7 h* r
</HTML>3 m' W; b, m! _# f4 z6 S

　　哈哈！！:=)是不是很精彩！！

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