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！！. E- ~8 m2 W0 a" ^& t$ d3 ?* z  G
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方法一：

7 ^6 U" k. c+ h  ]& T
　　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：2 Q; Y" f, |& _" a, P

<HTML>
<SCRIPT LANGUAGE="javascript">4 k; t' x: Q8 D+ V- u" I4 X2 l
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"( v* Y0 x. Z1 ?
var NewWords;0 s$ B" c* p. Q$ R+ |/ F2 M
NewWords = unescape(Words);
document.write(NewWords)- J" A/ B: Y) s& h
</SCRIPT>
<BODY>
</BODY>" z8 x  [. ?) h0 V+ }* ~3 W
</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：7 @- x+ N, O; R% C
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<HTML><SCRIPT LANGUAGE="javascript">) w. U$ q8 S% L0 J! z0 I* a& {
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"& W) s$ _% g; y
var NewWords;
NewWords = unescape(Words);* P# F2 s. G# w" r  u1 ]
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;
}3 n5 f7 P  i8 j9 w, n
</SCRIPT>( w5 r+ n( Q1 n( m* _
<BODY>
<form name=pw>5 A$ ?- d, k. {, M# e
<input type=button onclick="password()" value="解密">% A; n& h# Y# o( Q
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>
</HTML>* e! z- U$ D$ z2 d/ Y) G  v. h% Y1 z
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方法二：( W5 Q9 l4 W6 n: U# D8 ~
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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：. S. \9 g3 Q& i( [) ^0 P9 ?

<html><head><script>/ o1 s+ p- T) f4 N3 M  F) K2 ^, D/ t
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" +$ R0 S: d  a7 W) L+ I
"";5 x+ ]1 K3 U, v$ m! M  b
var s= Carbosoft( sJsCmds);2 h) N% R  A) P; ~4 x6 a$ z; P. k* `
document.write (s);
</script>
</head><body></body></html>
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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：

<script>, P" z' l6 O, [* i% w) B  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 ="" +
"?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" +
"";! u3 O5 P: x& A2 E# Q' t
var s= Carbosoft( sJsCmds);8 C; y, {1 V( t
</script>+ ], Y+ h3 Y2 s8 f1 e  f1 r5 v1 a  ?
<form name=qq># \3 V8 X3 R6 ?# |& e5 e' T  m
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>6 ]$ V. R) W! ]( y  V

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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：+ j/ I2 q4 Y* w* X$ X

<HTML>+ r: n6 a/ [* W7 ?
<BODY>
<SCRIPT LANGUAGE="javascript">9 f% p9 U: F& I& p3 ?" X& e) q
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">7 ~) Q9 t) A  |* {+ n' x
function d (enc) {document.write(codeIt(key,enc));}0 H0 U, N; m2 i2 W0 s
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">) U) s! ?  i- L; k
Decode();
</SCRIPT>
</BODY>* ^- Q% L: q* z
</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：$ e! q3 [1 N' ?# B8 p
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<HTML>. ?- n" T2 x* s; [) @2 W4 q
<BODY>8 s0 l. o) _; P4 h/ A3 q3 ~1 L6 l) U
<SCRIPT LANGUAGE="javascript">  ]3 k" h9 Q- t- N  H$ V
function Decode() {: n& C  r7 y& p( H% r/ [( e
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ d: S, V* \% u8 S
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}' B  c' \" S' X4 K' g* N
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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( E2 x2 ~7 }/ v* x
</SCRIPT>; O% w" R& H" H* F2 o. C. h
<SCRIPT LANGUAGE="javascript">) ^$ O5 |( ?) e. [9 W1 }
Decode();
</SCRIPT>
</BODY>
</HTML>9 v% g% n# ?8 ?1 o9 a7 t6 D

　　哈哈！！:=)是不是很精彩！！

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