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：: m+ q) c  W3 ?$ k8 b% i
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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>- u1 `: J8 e8 B
<SCRIPT LANGUAGE="javascript">0 H# q0 b+ w3 Q/ ]2 g( X
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"8 B  X" P' t5 X9 ?1 S$ i, _. m, w
var NewWords;
NewWords = unescape(Words);* h, g' O9 _! \5 L1 ?/ O  t
document.write(NewWords)& c1 @2 y) @) K/ ]! j0 Q! d
</SCRIPT>- @- A+ s. ~! d4 ]
<BODY>
</BODY>5 b/ J- o/ K4 F# _& n
</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：
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<HTML><SCRIPT LANGUAGE="javascript">  D# h; \+ k( d, y6 f& w; e0 y( 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"
var NewWords;/ X' u! M' E4 f: X* k! x* K9 T& T
NewWords = unescape(Words);
NewWords=NewWords.toString();( x2 {/ u! L- ?* {
function password(){5 N$ z$ I$ V+ V7 B- r: d
document.pw.txtpw.value=NewWords;; W$ g! d* j8 w. r2 w# r3 Q) R  f1 V
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</SCRIPT>
<BODY>
<form name=pw>( t: u6 _/ O& ?8 s0 N
<input type=button onclick="password()" value="解密">" \7 B8 O* y+ o1 ~) F" n0 h
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form># j, v/ A9 D* o/ l+ Y$ f' g
</BODY>8 R4 L6 P5 a0 p1 D# l0 g7 \# g
</HTML>, X9 I5 n2 g/ ?3 R" @0 D. Y
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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：
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<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 ); }( [, }. D0 H$ Q) @7 J4 W+ z
var sJsCmds ="" +0 t! f! Q: Q# B+ S+ B
"?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" +4 W4 J# {$ S9 i& }6 g/ p2 w3 u4 p
"";
var s= Carbosoft( sJsCmds);
document.write (s);
</script>! z5 `- y3 I& z- q/ D) ]
</head><body></body></html>

　　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：
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<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 ); }0 l5 C* l/ ]' ?' y: O6 A  a; _
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" +: `1 n. Q  w* s( W
"";
var s= Carbosoft( sJsCmds);& }6 z  M4 v( H. G6 i0 F3 ]
</script>
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>2 p/ D6 ~5 N  [: a
<input onclick='ww.value=s' type=button value="解密">$ x$ Y1 r" V7 M7 t
</form>$ D6 D- f$ F; f  r

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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：
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<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {( U) v# c/ a' Y! o, W7 j1 i9 \7 k% m
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}* n/ B  a- A- j0 y$ d
</SCRIPT>7 f. K2 u& [$ X4 X
<SCRIPT LANGUAGE="javascript">5 V1 ^/ o& y+ E" ]' R# L# N. ]# v
function d (enc) {document.write(codeIt(key,enc));}9 B, Z! \% p" W1 E- B  e! J
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();" O6 y' a( r3 j  H  ?4 ~% W
</SCRIPT>1 |( y& y* j. t! `' E+ n* R$ d
</BODY>1 K7 e. r; o3 f  _& Z
</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：, A$ U9 ^0 R0 z8 l0 y
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<HTML>6 r+ }/ `# ]4 b7 t) M  X
<BODY>- f& |) K. B! F+ m# y1 x
<SCRIPT LANGUAGE="javascript">
function Decode() {, n( J% {+ r7 N& ?1 {) i
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>3 k: Z! r1 \) [. Q4 V0 x' c+ Z
<SCRIPT LANGUAGE="javascript">5 x0 h3 _/ s/ z# x
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();3 N2 e  }$ R( r9 B* q
</SCRIPT>' Y- q, B! W1 S
</BODY>
</HTML>8 _" L; D7 s0 Y8 y8 R8 C
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　　哈哈！！:=)是不是很精彩！！

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