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！！5 k" y/ |, {0 P" M  B' b
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方法一：% _1 H2 X; r3 ?. o6 g0 t

　　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：) R4 B$ t: o* Z9 R& g% f+ ?

<HTML>1 i# ~' L' X  V
<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"2 G4 R3 @$ ^$ c3 g
var NewWords;' T- v0 ]; D* q( s: [" R- X( V/ d
NewWords = unescape(Words);& f/ |- W/ S% d8 I  W& o
document.write(NewWords)  `, c) @# s/ t- K1 q+ k: G
</SCRIPT>) N4 y6 _( X1 J7 Q5 C6 ]$ A/ L
<BODY>
</BODY># a6 f# T8 x  A
</HTML>0 B6 M: V$ \- F) o8 [& p8 X
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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：2 b: w; ]1 V; R7 l* Y2 B

<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"3 G' R( {5 c2 d' u: T1 X
var NewWords;
NewWords = unescape(Words);7 K  ]$ \% l; L, b4 d
NewWords=NewWords.toString();
function password(){3 n. i) q, G' w3 V: \5 B
document.pw.txtpw.value=NewWords;
}0 ?- x9 ^3 E, Y+ ^! V
</SCRIPT>( m3 F  X/ \- o* L, e2 P
<BODY>
<form name=pw>/ X. W5 Y: s- _4 Q) R; ~. }
<input type=button onclick="password()" value="解密">( ]; s1 h; I$ F+ B5 y0 N; ^
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>( l3 Q7 s( ~7 w1 s! b8 j
</form>; o7 S: P3 Q1 }& R
</BODY>
</HTML>
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方法二：7 \/ M5 F  B& x& b# m; p* v

　　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 ="" +& V* X4 ]2 }3 N2 N' M
"?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- s! z( E0 y% F4 T
"";
var s= Carbosoft( sJsCmds);2 E1 N% C; I$ m$ J6 @4 A' d
document.write (s);+ x; d, @: {  y" ^7 M/ c
</script>; w: y4 d4 n! ]9 p( D2 c
</head><body></body></html>6 d' w# _$ x( \) B* N

　　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：' S% q. q0 c8 A; j: U

<script>6 b! C) a/ p# _9 s, ?  `; B
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 ); }  B, g) J/ v5 M7 D6 p
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/ g& i# Y: b$ m: [) w) M& `
</script>, ]% K3 a" o& A# ~
<form name=qq>% q1 v7 }. U8 C1 l1 _8 ?8 D/ @+ j
<textarea name=ww cols=100 rows=10></textarea>( }& r6 R* C' B& ^/ ?" {. l% C* X/ b
<input onclick='ww.value=s' type=button value="解密">1 X. @+ }0 V$ Z) p  w$ h9 s) @
</form>0 U6 Y  l  w! M
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方法三：

　　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>8 S, E3 J1 X. Y2 f
<SCRIPT LANGUAGE="javascript">. H) N- W' h" ?6 h
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% u/ r7 a9 \! n% d+ e, O) h- U
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>" @3 x( o5 I  z* X
<SCRIPT LANGUAGE="javascript">$ b" a4 k- ~* Y0 r
Decode();# H% ]6 V" M3 u
</SCRIPT>  J" {5 S) v/ J1 ?" _
</BODY>9 j, k% a+ d: A; f" L6 u: r
</HTML>2 q! W# g. E0 O; m) n4 o3 @0 A
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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：4 U! m) A9 t9 k3 I3 M: {% f
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<HTML>( P8 }+ C) A( V% H# [
<BODY>4 N, j* B+ H& v# Z
<SCRIPT LANGUAGE="javascript">' _* r) ?. A, v1 [; n" x+ p
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}, L$ D! n" m$ b
</SCRIPT>/ j7 I5 S( J7 J$ E/ T
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}: U: J8 c- v6 Z. b; B3 `% Y
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;}  s6 F7 u0 @' W! |- g: c( b# W4 _
</SCRIPT>5 A3 d* B4 s7 N2 h  x. h
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>6 o% o' _! z8 W
</BODY>
</HTML>

　　哈哈！！:=)是不是很精彩！！

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