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！！7 k; E0 }, ]' m. X

方法一：

　　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>  ~+ ~3 d8 j, u3 p
<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"6 Y1 L6 N- M! }+ p
var NewWords;
NewWords = unescape(Words);. Y% \7 l; t% _8 o2 D& y
document.write(NewWords)
</SCRIPT>
<BODY>
</BODY>$ n' u( _) x$ _8 y2 `; L5 Q
</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：8 k' [7 [: T, A& b  p% X* r
$ M. T  G/ N- q- ~, a
<HTML><SCRIPT LANGUAGE="javascript">! e0 @: P$ m2 M/ Z
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"% D' ?$ V( J) i: R& F  _$ X4 ^
var NewWords;8 i* z# f0 t- f1 Z/ U
NewWords = unescape(Words);+ R" |' @6 L( U3 B8 Z+ K' v& Z& U
NewWords=NewWords.toString();
function password(){, l, W: ?% T& R; @: a5 N  F
document.pw.txtpw.value=NewWords;! @3 |" N) I9 {
}
</SCRIPT>) p8 e; O' S/ F( H
<BODY>- z  v. w4 O, k2 Z& }( y* D
<form name=pw>' b" }9 F- k3 r/ Q  K+ I
<input type=button onclick="password()" value="解密">* C, ]1 \( \, a/ y: U( P
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>" D0 k; P$ w: b3 L
</HTML>

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：1 E4 g1 f, \* j+ L: C2 v! S/ A

<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 ); }
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" +
"";# z& t! D/ W. ^4 f: w# I. J6 _, n
var s= Carbosoft( sJsCmds);0 y- U9 ]& \# [& _  ?( o
document.write (s);
</script>
</head><body></body></html>, Z( c" L7 ?, e# I# ^9 z- o, U

　　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：/ M. Q& S2 y5 U/ ^# G

<script>: I  A' n1 `. y6 W9 |
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" +" b: b! f* E1 [: ~- d: l3 C' D+ v
"";
var s= Carbosoft( sJsCmds);
</script>% R) m" r$ W+ L0 q! D
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：
5 V5 T' q  V0 {! _  Y0 R7 ^
　　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：* [# X3 P' H  n) \
* x- X( |5 v; [
<HTML>" Z6 e; x3 x4 D. {* }" [
<BODY>: Z3 e- q5 _& a8 X/ F. J
<SCRIPT LANGUAGE="javascript">  R' z' n4 F, g7 ], V3 r" ?: `: z9 T
function Decode() {- H2 l0 z. I& b4 B7 E
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">4 h! \3 c; \5 Z  f9 m% |
function d (enc) {document.write(codeIt(key,enc));}4 y" v- x8 \/ T. `
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}- Y1 z9 ?% F  E1 |& {
</SCRIPT>
<SCRIPT LANGUAGE="javascript">, i' v/ J/ ~+ u1 N
Decode();& n! g; i& s; G- [+ E$ l
</SCRIPT>
</BODY>
</HTML>8 K% o" k7 t$ m% z4 o' @3 c0 G4 t
% g6 G7 @7 G2 F+ q; O
　　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：
6 t; D( i6 T' a3 U& e" D4 K
<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">2 w3 e4 w$ \. Q  D3 I1 `, e( G
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>" e: A; v% e1 v; X# ?
<SCRIPT LANGUAGE="javascript">; @6 D- b, Y+ j/ T
Decode();( H% j! x" G2 i
</SCRIPT>3 Z2 i/ z2 R6 h1 ~) V2 F( N0 j
</BODY>% v2 S9 H( a7 R
</HTML>

　　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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