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！！
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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：# h9 N* m5 ?$ c$ t' _& L. }

<HTML>
<SCRIPT LANGUAGE="javascript">: X+ r" M- \: p5 Z( v
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"# h, y) v" l: B# a& j
var NewWords;# a5 y3 W, v. \8 G$ P% G' ?) ~, W
NewWords = unescape(Words);* @- \& S0 l+ ^3 s. b* ^
document.write(NewWords)
</SCRIPT>
<BODY>
</BODY>
</HTML>7 E1 h5 l4 @1 E; i9 y; c
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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：
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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;6 Q. P* m, H+ d/ S; X
NewWords = unescape(Words);2 O' Y2 y1 t# [8 k
NewWords=NewWords.toString();" `% _2 g( f1 K; `7 C7 z
function password(){5 U- `" o# p5 g( r1 @0 L: s) `. |
document.pw.txtpw.value=NewWords;
}
</SCRIPT>
<BODY>$ c$ F7 l7 ]! j9 @& m. X" A! c* |
<form name=pw>
<input type=button onclick="password()" value="解密"># `# ?3 c; ?" U
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>) H) ]; h9 ?- o) k6 J
</form>, L7 a+ {  t+ n0 u2 o1 @
</BODY>
</HTML>

方法二：+ D  k# w6 G. q/ s; Y3 k; \

　　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：

<html><head><script>/ X& z4 U) y( g" 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 ); }8 H5 @, |+ T7 T' y! h( G
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" +
"";
var s= Carbosoft( sJsCmds);) R" I4 g" _0 u; ~- N
document.write (s);
</script># h( u3 F3 Z% I9 \
</head><body></body></html>9 [) W. {0 }& v+ N2 Y1 P
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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>, @: W: ]8 y* U- Y  w# u
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 ); }1 U1 U- |/ a$ d1 T0 b
var sJsCmds ="" +  a; X8 |' k# k% [' |4 I
"?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);8 e/ a. L. g" u2 R- I* [
</script>5 C9 ]3 N  z0 Z7 K8 I0 v4 i
<form name=qq>- }  D4 r3 T+ z! j
<textarea name=ww cols=100 rows=10></textarea>' }# f* P: b7 V2 v% B8 A
<input onclick='ww.value=s' type=button value="解密">
</form>

方法三：5 l9 U3 a  T3 l8 S; F" e/ U' o

　　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：' \; e6 n. n: @# x
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<HTML>& M" h$ a' A; K/ @5 x
<BODY>: _  ?  N6 n) {  i* d3 V  N
<SCRIPT LANGUAGE="javascript">& l, U$ j; T- w* n# z7 n( A2 ]& U
function Decode() {. T- T3 ^4 L5 f( j
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}! g9 R6 a- L. K" s& V/ N/ }
</SCRIPT>6 a2 t7 d8 ~% ~0 ^  l
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}: P' q) {5 F4 c
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">6 W6 p' b9 J4 B+ P# \5 x$ P
Decode();
</SCRIPT>% {1 R) A! k* r
</BODY>3 V( @' C! Y$ K0 O
</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：2 l* b5 j% b  Y5 ~& a

<HTML>. M9 O/ n! S5 r. p6 j6 P' f. x* ]
<BODY>
<SCRIPT LANGUAGE="javascript">* {4 p" m- w# t" @) }- M6 J
function Decode() {" V. H) l4 F7 Z  E! G
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}7 {( E6 r$ y% _0 }. D! c% b0 g: J
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}7 N" _+ J! U5 q- c$ e0 M  A5 n+ @
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}0 q; M. v9 K$ s! \" P# m
</SCRIPT>: b! h* n/ g' Q) C  Z# ]5 h6 g1 T
<SCRIPT LANGUAGE="javascript">3 S* ?" |! B% ~1 {, r- a$ _
Decode();+ n, a& V. v- L" r4 ]  P! F
</SCRIPT>
</BODY>& d+ |" e# Y! N4 I0 b
</HTML>. j8 s! w  |% K2 V6 t$ U, X! V: Z

　　哈哈！！:=)是不是很精彩！！

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