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！！. c% F- G# ]* ~. s. r+ u2 V* `0 Q

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：

<HTML>4 i  u9 T$ x2 O7 f, b& n, i* ^/ L
<SCRIPT LANGUAGE="javascript">$ s: ?# S6 V5 S: F3 E
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") V5 `5 R3 d6 K* Z  _
var NewWords;5 m5 }) R" A* B: y# I
NewWords = unescape(Words);
document.write(NewWords), `9 Y( [3 O- k( P7 }
</SCRIPT># @) x4 @. X3 v3 f4 ]) m; Y
<BODY>2 L3 g0 v6 w% u5 s, s
</BODY>
</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：
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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;3 D; U8 s0 w1 T
NewWords = unescape(Words);
NewWords=NewWords.toString();
function password(){# G2 b: a# p: h3 ?6 j
document.pw.txtpw.value=NewWords;
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</SCRIPT>
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>- e7 ^! U# \& }3 ?! G
<textarea name="txtpw" cols="100" rows="100"></textarea>$ n0 A4 x* D/ C% R7 [4 R1 W
</form>+ F6 a1 o* }4 I' ]7 ]8 D* S
</BODY>4 H: P5 g/ P8 L0 b4 d" [
</HTML>
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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 ); }
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" +
"";3 j& Q- M6 _* B' l2 l, Z# o
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</head><body></body></html>, Z  {1 M) R; C% q' B8 L
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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：1 p5 N( C+ @* `. F$ `0 ]6 s, n
  {$ I- J, k! C3 s. Q( {
<script>& \6 u& w9 z: r( P5 x$ i2 I
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 ); }3 n# R6 }- g& a9 E: O0 z, t
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" +5 W6 Z3 r7 W7 Z6 _
"";# a* O4 K6 N; f4 d( I7 ^9 \; M* l
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>! j3 a0 W8 K7 |$ U' y$ [2 @$ q
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">
</form>
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方法三：
  `4 f1 }% m5 [; Z/ _* ?
　　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">" o0 K: K4 R; w  v
function Decode() {4 z. X8 m& y+ Y6 z# `7 S
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}- J. h  Z, d( V! [- a, u) u
</SCRIPT>2 g8 O5 [% E. `& u
<SCRIPT LANGUAGE="javascript">* ?+ r# t$ a  c6 t4 e
function d (enc) {document.write(codeIt(key,enc));}0 m! o, H5 y+ K- Z' t6 u$ J
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}$ ?* f% B0 {" p
</SCRIPT>
<SCRIPT LANGUAGE="javascript">- d$ E4 }+ H) }. `1 h4 @/ W, e
Decode();# r) F! t2 `9 d9 l- i% j. m
</SCRIPT>  ]3 p/ f! _  P" H( B" J3 `; `7 d$ ]
</BODY>' y5 i. W- p. W" N
</HTML>( ?1 Q" c8 n. L) R1 O0 Q

　　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：

<HTML>; x! L% M! ]/ h5 O# j/ R
<BODY>
<SCRIPT LANGUAGE="javascript">5 g( S( \. i/ r- E- c0 B, r" n' }
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}0 C) G0 u6 X1 `$ x0 T+ K0 X' W
</SCRIPT>% Q  [6 E) s+ ], e: S6 B+ M
<SCRIPT LANGUAGE="javascript">
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;}* y& X" s/ ~) Z0 v/ M# j
</SCRIPT>; l6 U; Z; w; e' V5 `& K
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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