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！！% w7 s% i. P& b: b
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方法一：* |! Y& ^) r9 O

　　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：8 K- C- Y" ]8 `3 y, I2 h" u) i

<HTML>
<SCRIPT LANGUAGE="javascript">* U; X8 a& F' t
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"5 d0 K8 C2 K% ?( F  q: w9 W3 z
var NewWords;5 D  Y$ V: o2 p, C/ d
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>3 T; ~- T" |; ?# a5 o
<BODY>& S  X( R% l9 E
</BODY>7 ^5 b# g% G8 X0 v; t" m
</HTML>1 T2 a2 N& M  b" c6 M
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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：
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<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"" y- j4 c9 J. Q& R4 q
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();, c: O. W3 H7 i. u8 e& h& u$ [( d$ A
function password(){4 R- G) }' o4 _+ t; s, V" A# I
document.pw.txtpw.value=NewWords;
}  h1 {. ^' z* B
</SCRIPT>  p) P/ J2 b8 T$ @
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">, f9 u+ n" B: d0 ]
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>2 i9 m# E7 R; i' D* i% T
</form>
</BODY>0 _) y! D. A+ O! w# E
</HTML>+ z- T! r, b# y) X) _% m! H
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方法二：' U) X  x1 G7 Y, ?) I
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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：4 |0 y# B& r- S1 X  N( G
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<html><head><script>3 j/ h- B! l% a
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 ); }( e1 ~: n. K* D7 R9 \% h9 c9 o
var sJsCmds ="" +! T2 n! K# a, i8 I, I  V
"?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);/ k; N$ ~! Y& }4 b) C
document.write (s);
</script>8 Q& I) r. v' j  ]
</head><body></body></html>4 b) m$ k2 `& C" }( J$ ?0 r* F
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　　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：7 m2 U$ P& E" @# B! m, J- Z2 [

<script>4 V6 B& v3 X* P
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" +
"";1 k% X- c6 ~9 c9 b$ B: ]: X  P
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea># I, o) m( k( R3 h* \2 M, v" V/ `
<input onclick='ww.value=s' type=button value="解密">
</form>
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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：, Z- x$ }# k9 Y$ e1 h  N; b) R

<HTML>: `$ I) F, U9 o* Y5 i' I2 W
<BODY>" h6 u5 b- b4 u) k! L
<SCRIPT LANGUAGE="javascript">0 t; h+ u8 h; I3 |
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}3 D! c2 F5 d+ x$ @
</SCRIPT>
<SCRIPT LANGUAGE="javascript">4 x0 J4 Q& U: s$ i8 r
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;}3 T( `  u( D& K, s1 z+ l+ \
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</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：7 t2 m6 k/ o% h7 V) P# y( L
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<HTML>: }9 I7 T8 j' q6 A1 g
<BODY>& P5 F1 d- r" ~+ U: d
<SCRIPT LANGUAGE="javascript">
function Decode() {8 X9 U/ d* V7 m( T
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 \) L9 w4 g7 M5 B4 Y
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}8 |' g: c* c: p7 r  F; ]
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}8 M0 O9 r. ]6 u; L5 D
</SCRIPT>% l- G" D$ a+ d7 N5 l  L5 |. o5 i
<SCRIPT LANGUAGE="javascript">  a$ l- G3 ]; N6 n: J9 S$ k
Decode();+ ?* P. k! d3 t. n& A. w6 p2 W
</SCRIPT>
</BODY>. l& P# q  j( S  R
</HTML>1 k  [' A$ W$ B# r& j5 V9 ~8 g6 R
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　　哈哈！！:=)是不是很精彩！！

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