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！！0 R2 U  c  b6 V7 J3 M6 Z& t

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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：

<HTML>) j7 h& j# B7 A  I# [
<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"9 @- H5 ^$ C% [- V# A6 a6 @
var NewWords;$ u" }* G( a% I, l3 I$ c
NewWords = unescape(Words);0 a1 e9 z5 C/ T1 p; z! i
document.write(NewWords)* j" N, q: e, Y3 P% S
</SCRIPT>  f' ?" Q) Y+ |, V% y
<BODY>; t. h6 [! U0 I: o. q6 H
</BODY>
</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：3 p8 }# W/ F6 A7 _
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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") k3 O) ^( M' L$ S5 S
var NewWords;0 m; P+ d6 m( x
NewWords = unescape(Words);
NewWords=NewWords.toString();- G/ P9 p, Z; g4 H, o$ S
function password(){
document.pw.txtpw.value=NewWords;$ x7 f! I% O: `0 Y, W, w
}
</SCRIPT>
<BODY>
<form name=pw>9 v+ o* z7 @: T1 y. W# }
<input type=button onclick="password()" value="解密">0 x$ l; [' {. k  P! E& G
<br>9 v/ }+ X. T4 ^4 E( c. l
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>. I2 C" q' M: G# ?; V1 m, H
</BODY>
</HTML>% }- Q- u! i' V" u

方法二：

　　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>9 G; `2 Y" B' S5 o+ 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 ); }
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" +
"";' D; Z* o! w8 ^* p
var s= Carbosoft( sJsCmds);
document.write (s);# s  p# H* d  D3 r! X+ |2 v
</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：- ~! c1 H2 a. z8 q  j8 N; \
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<script>* {  ^( U0 w; k" M& y" ^% w1 ^
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 ="" +" {0 o3 j! p: E) S
"?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" +. ^+ f: E; }( k3 e9 q$ O$ _/ p
"";1 ~, J! w  ^. i- K8 z
var s= Carbosoft( sJsCmds);. X, F* k6 x% P! b2 r9 A
</script>( U& b* b: P; t% o+ Q
<form name=qq>9 w* k: L  m" Z/ q6 p4 o7 P( g( y  l: }
<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：; r! u6 q; J  y5 x( o* G* R, O
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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：4 b  ~  o5 C) _! Y8 {: m! k

<HTML>7 A/ Y: d4 |: m8 B+ j
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {) \0 X8 p7 h* d9 }0 O
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>! j0 `, W  b5 y/ m
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}/ c  u1 s5 c/ L3 z) T1 O
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>$ z& B$ B! W* {
<SCRIPT LANGUAGE="javascript">" P1 f' r6 k2 V3 `
Decode();
</SCRIPT>
</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：

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">/ ]! V# C3 {3 h8 V' {
function Decode() {! G7 @* m9 |5 X( e) p* y- @2 |
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}  }# Y( a6 o# W
</SCRIPT>+ r/ b" Q2 e- |; e
<SCRIPT LANGUAGE="javascript">5 M4 W  b- T  Z1 n9 [
function d (enc) {alert(codeIt(key,enc));}4 J6 P& P6 E' i0 B& d. X+ j) l9 a
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>$ b# p$ `7 x, l0 w
<SCRIPT LANGUAGE="javascript">4 g  X2 b. I' Q" l" R' Q
Decode();) J5 ~, q9 L- r0 Z9 R1 l$ x, x
</SCRIPT>
</BODY>* d* p! p8 ^0 m8 ~  w- {' W. K
</HTML>
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　　哈哈！！:=)是不是很精彩！！

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