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：# C  ]% U# o* g  }

<HTML>
<SCRIPT LANGUAGE="javascript">0 Q/ o, |+ U6 q8 ?; d; V( S
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;8 i0 |% l! J- h- p& N7 ]
NewWords = unescape(Words);5 u9 u5 Q0 i' U, i* O. K7 C! r
document.write(NewWords); X1 h. x  P5 a  s. {* q# n
</SCRIPT>
<BODY>
</BODY>% }& {  m, M0 q2 m
</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：& \% l8 y0 e# Y" A' X5 x
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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"7 V3 {. o- v% C% e6 ?
var NewWords;+ u% T1 @4 j  ^) i' e5 q% n# g8 F
NewWords = unescape(Words);
NewWords=NewWords.toString();* y8 ?* x  M0 }. ?
function password(){
document.pw.txtpw.value=NewWords;; g1 y1 ?$ e( G& i
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</SCRIPT>% ^7 J6 Z  k' G1 c2 p& C0 m2 R5 F( d
<BODY>- L3 U! E5 A" z, j1 k2 l
<form name=pw>' V- J" e3 e0 x
<input type=button onclick="password()" value="解密">/ M. G; A) j# R( D- M# A2 k; X
<br>, F5 c8 N+ H3 n
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>" T! D5 c' g4 L: Z* q) M  G
</HTML>

方法二：. l6 d( E& F/ l+ r$ G9 ~
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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 d1 [' h2 Y3 ^

<html><head><script>( p9 |; A" _& g1 Q6 J
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 ); }0 P/ _8 g" U. b# T+ T
var sJsCmds ="" +4 Y* J: e1 f# h# a
"?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 c0 `, P0 Y* q' a- G
document.write (s);
</script>
</head><body></body></html># Z( T1 U0 \% u  ~, 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：$ t0 a& d: a$ m7 i7 ~

<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 ); }" U" ?$ V) {# w
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" +* g& J/ L9 d0 R5 r7 z5 Y& o
"";
var s= Carbosoft( sJsCmds);5 E1 L/ Q- @$ m, M$ s( z2 \. ?4 B+ U
</script>( [  F. p* D0 N7 x; ]
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>/ L0 }+ P) A* D  r" M
<input onclick='ww.value=s' type=button value="解密">5 j6 A9 m3 n$ i) q- p, T
</form>' O0 z/ o$ [, {+ m; e* l( v
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方法三：( Q2 b! x! b% u* `0 C; a, ^
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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：3 r! O3 J7 B. X( I. ?
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<HTML>3 h# v2 H, ~* [: r
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}: y/ D1 D- I9 Q! F* B/ {) H
</SCRIPT>  V' ~2 l4 c. P- k" U2 L# N( Q
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">
Decode();
</SCRIPT>" r/ _$ M  y) r/ k8 ~
</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：* D' S" t4 A+ b4 b+ n2 b- Z

<HTML>, u) _5 s1 x( R: z5 E0 S' @" N
<BODY>3 x8 M$ O! ?; R& S5 N
<SCRIPT LANGUAGE="javascript">
function Decode() {3 [5 W7 D% h+ J+ q
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}# r0 C7 I( x# p" Z# e/ X) p7 Z) h
</SCRIPT>0 x! }) g( @8 S( L! P
<SCRIPT LANGUAGE="javascript">9 x3 h8 W0 R; _! B8 i+ s
function d (enc) {alert(codeIt(key,enc));}* B' A% X0 I/ g- k* u
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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">
Decode();
</SCRIPT>8 X% X9 }1 V( y5 {/ S
</BODY>* n+ G& N) R) n8 M  e! r
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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