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！！5 J7 ]- U  l) {9 l( v+ e
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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：
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<HTML>) O5 q( c( y- G* N4 |3 ?3 l
<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"; o4 T5 H2 y! W& @
var NewWords;
NewWords = unescape(Words);
document.write(NewWords)7 Y7 k; m9 y8 o: L8 y
</SCRIPT>
<BODY>: m0 @! m2 U( |) J4 j  ~
</BODY>, l7 m+ e: n& r( {( i: R
</HTML>% _$ D% z7 y. {% z( }/ o0 V$ Y
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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：' c; `. j  u( o* M" q1 t
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<HTML><SCRIPT LANGUAGE="javascript">% O( b2 a1 l. T2 R
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"& Z3 d8 }! O9 R6 g
var NewWords;
NewWords = unescape(Words);
NewWords=NewWords.toString();# L8 c. b- r5 H# p% x7 o; k0 [0 c
function password(){5 d# A& p0 t% Y4 ?) W& f
document.pw.txtpw.value=NewWords;+ j% g# W( E. N4 j7 l& o
}
</SCRIPT>5 K! z# S6 @3 t* E, q6 L/ Z/ b; H, M
<BODY>+ \4 ]2 p7 a& @( r
<form name=pw>$ p! r, m3 _4 |; G: ^2 ^+ X
<input type=button onclick="password()" value="解密">5 y6 _3 Y5 o1 l; @. l# N9 J  U
<br>' L! k) V( x" K" k4 [1 `
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form># ?$ N; ~1 f! p" o  A0 f3 Q
</BODY>( c% P( x1 l6 t3 J3 R0 V$ g) \
</HTML>: x+ D: r2 I5 j/ W
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方法二：8 q. E! n- h. t1 p6 |

　　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 ); }  ]7 ^5 }, Z- }5 m, I$ T, m; z
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" +/ l& @- S  Y; ~0 i" E' ~
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var s= Carbosoft( sJsCmds);- ~) V1 {% C2 V
document.write (s);. u- I9 A# \% ?# C# q
</script>7 K3 j8 V" H. o0 v0 \1 G6 e
</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 ); }6 B& R2 R% z  Q( Q1 g
var sJsCmds ="" +/ ?$ W# M, M' Y! }. L9 s, E* d  S7 ?
"?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 ~/ C- m+ W9 M
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>8 f& j8 k0 f9 n2 ^( C  Q7 [
<textarea name=ww cols=100 rows=10></textarea>0 g6 O# _5 @( h
<input onclick='ww.value=s' type=button value="解密">) p2 M7 ?# i% E' i
</form>! ?' j, j& q/ ~' @

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：, q/ V1 M9 c( Y4 y0 l
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>* r; ]0 c( N4 W8 I3 w. `
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}* r) M# c; j0 V8 S  H0 S
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}. {) Y* @3 J4 Q7 n
</SCRIPT>
<SCRIPT LANGUAGE="javascript">  R- h6 [4 I4 \( s
Decode();
</SCRIPT>8 E( g0 f- s7 v$ J5 z% H
</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 b( v9 z/ N& w
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<HTML>, s2 G: i) |; g8 h
<BODY>) ?6 U+ a$ I/ q" ~7 x" T8 p
<SCRIPT LANGUAGE="javascript">" S" G! l; Z8 E0 H; v
function Decode() {" W3 W! ?) `! t
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">( T, y. Q  w6 `$ C4 Y8 _
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>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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