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！！9 Z4 d; X! M, h. k

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方法一：9 b: \; I' Q+ O$ j" [& \
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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：! G7 i4 l) _* O8 H; D: {

<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"
var NewWords;
NewWords = unescape(Words);$ T% n5 s7 z% N5 K, ]" C5 ~" M
document.write(NewWords)
</SCRIPT>6 X. J  @/ z7 s* L5 \7 i7 N. p
<BODY>5 S7 L( j2 x$ V( @4 w
</BODY>
</HTML>
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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：# u$ o# c: T, ?( ]- ]
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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"
var NewWords;5 Q! E2 w) d" N8 W
NewWords = unescape(Words);! }$ }; s3 F3 u( L
NewWords=NewWords.toString();* G+ M$ Q% V1 P9 |  s- V5 E
function password(){
document.pw.txtpw.value=NewWords;
}; o- M1 u9 {: n/ c/ }
</SCRIPT>
<BODY>* v. P, u9 `% J3 `* h+ i
<form name=pw>& _5 ?/ M$ c  z- ^" j4 {  E9 N
<input type=button onclick="password()" value="解密">
<br>2 s/ n& B, n8 ^7 O0 _
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>3 z5 k" {" ?- \" L/ t6 d8 @
</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：+ |$ e7 N' M) ?3 _

<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 ); }& G  }. |" \( s% a9 W! S1 m7 k: r
var sJsCmds ="" +: e& O$ F% l4 T0 _2 c2 \
"?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" +( f5 ^' K9 P) D/ m! A
"";
var s= Carbosoft( sJsCmds);% o3 ]% L% _1 m( W
document.write (s);) H1 k2 ~" P& ?- h
</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：2 ~) E+ k8 v" L" \' x
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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 ); }5 ~5 Q$ Z& m  D+ U0 U3 S
var sJsCmds ="" +5 y+ s+ l* p* U& }
"?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 x* Z/ E* U" c( i4 a6 n) T) j
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var s= Carbosoft( sJsCmds);
</script>
<form name=qq>9 ~& A; ]5 T6 l  |6 ^& }: G+ G( @: R
<textarea name=ww cols=100 rows=10></textarea>( G4 s" d, _( P  h8 Q; x
<input onclick='ww.value=s' type=button value="解密">, U( J  F+ I; o& }+ Q# S7 u
</form>0 h3 Q+ Y; `- L) V; v$ _' W
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方法三：' {  [6 n  y! v; J6 N  t' G
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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：! g6 g) B  L) I: F
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<HTML>
<BODY>* R- P; P( b/ j  D
<SCRIPT LANGUAGE="javascript">$ e, S. B) I- K, h# A9 g6 }
function Decode() {0 c1 s( y6 y* O  O; y
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>( l' U  s* [2 a: c+ ?/ s, z$ n7 S
<SCRIPT LANGUAGE="javascript">) j# B; l7 U) Q, I0 B5 p
function d (enc) {document.write(codeIt(key,enc));}3 D+ o" l% f9 Z! W3 z
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>! U$ G3 |4 y: |7 m& j; t3 s
<SCRIPT LANGUAGE="javascript">8 Q' r* I2 x1 T, }: ]
Decode();
</SCRIPT>7 k( h# w$ X' N3 m+ {4 v
</BODY>
</HTML>
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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：

<HTML>8 e: @- u7 R3 R  G+ B
<BODY>/ C" F* [) m0 n( p5 r! a1 R* l1 F/ q
<SCRIPT LANGUAGE="javascript">7 e, o7 G8 j2 l7 L/ n- N6 x
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}9 w+ O: h+ H( Q& N& E" X# u
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}( t! W$ u7 m0 u3 o$ M
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}% A6 m# a1 y" c4 X, e
</SCRIPT>
<SCRIPT LANGUAGE="javascript">$ x9 `( [2 P6 \" b' m
Decode();
</SCRIPT>5 z, q! w1 T% k3 [' {  [' Y5 K
</BODY>2 X- G3 m) c7 [' m
</HTML>0 O# T! S( r# @, Q, A& ]
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　　哈哈！！:=)是不是很精彩！！

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