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！！4 e$ K- [) j' C6 ^6 b

方法一：. p) x0 l" f1 b% ?) _4 O/ p0 ^
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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：

<HTML>- ^. c1 w3 Q' |* U
<SCRIPT LANGUAGE="javascript">3 `& }) [7 R, [8 a! j% F) e
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"( i' }. z- W- ^' a' w& z4 y
var NewWords;5 y( z1 H' k' r1 t" a* C8 M. ?
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>7 H: ^7 x( C9 z. k) s* c) r( v
<BODY>1 F2 F7 Y# m" f$ ~
</BODY>  D7 W5 l! H$ h
</HTML>0 \6 A1 w/ |/ e" y, @% K

　　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">1 M, A* g* u3 d
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);  X4 y7 T, \( u0 Q
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;; W1 B7 ^6 ?8 T7 W
}
</SCRIPT>
<BODY>! y) K4 ~$ L9 W, _' I6 u6 D( ^/ N
<form name=pw>* ~/ |% [+ G$ @6 ^6 I; H
<input type=button onclick="password()" value="解密"># A% X- s4 v+ r3 y2 Q
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>0 }8 {8 c* F, T5 {" w* P) B" O; l9 q" h
</HTML>6 T' ]  C2 ^2 i% H: M' d0 W# O: M: v
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方法二：+ n" s7 o+ n: [: j' b5 y) }
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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 m9 ?! }) U& C, U* u2 I8 V7 \! R5 B
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<html><head><script>  e; f& y1 ]3 e. t: f0 X3 Z/ N& i5 H0 c
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 ="" +  c: f5 y1 v) Z) \3 q* r
"?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" +
"";& c! M2 U) H+ v" X' S+ o; U
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</head><body></body></html>" ]' W0 T$ @, w- u/ c- Q# V& _

　　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：

<script>1 i3 s8 J0 o* b4 O% n" o4 y
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* k& l( G" R% B
var sJsCmds ="" +$ p7 i& j* x6 f7 ^! A) F  K
"?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);
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">: P8 Y* F& @/ Y$ u" ]: R
</form>5 |( j( r- l" C! w2 N& O8 R! Q% F
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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：9 \2 y* }1 O' f
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<HTML>* s+ s; r+ c( b( ]+ \
<BODY>1 X: s( W9 r, o
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}5 u! y& A: D( D0 _1 q" j' u! j4 a2 V7 Q
</SCRIPT>  l( Z. A4 Q/ J6 z7 E
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>
<SCRIPT LANGUAGE="javascript">  t3 N9 V4 i; N1 X( r" d3 G7 m$ c
Decode();
</SCRIPT>
</BODY>
</HTML>0 [# R1 ^$ e+ ?

　　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>
<BODY>
<SCRIPT LANGUAGE="javascript">$ |. _5 L3 t5 h; A; U: D& c/ |
function Decode() {1 }/ G$ M2 t" v0 z5 B
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}# A5 X7 k* L& H2 j
</SCRIPT>
<SCRIPT LANGUAGE="javascript">& l7 b: L2 V/ q% S3 i* P1 O
function d (enc) {alert(codeIt(key,enc));}8 S3 X" x, d: D+ H4 C2 T2 [9 ^
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}" Z. t7 Y2 N, f" |' I. H+ e
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% w* B1 F5 t! v
Decode();0 x* ?, s  b5 _# H) o6 k
</SCRIPT>
</BODY>. M% E$ r6 y0 c( u. {9 I: d
</HTML>0 T1 H5 Z2 m; W/ V4 Z. f' @* K# T& G

　　哈哈！！:=)是不是很精彩！！

捌玖网络 89w.org----致力于站长学习交流

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