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！！6 G4 a' P3 v! j/ \9 [

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方法一：; r7 U& W8 ^/ P! ^
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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：
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<HTML>0 a# w0 N$ a) K+ z8 M1 I
<SCRIPT LANGUAGE="javascript">3 A  a/ ^4 ~5 Y
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"  v1 j, {+ s* ~3 r! D) t
var NewWords;% J2 E3 ]/ Y3 [' F9 \
NewWords = unescape(Words);
document.write(NewWords)
</SCRIPT>8 k6 \' E% f- w7 _
<BODY>
</BODY>: i; u/ |9 m  m* s4 |/ _
</HTML>1 a& N, f9 M1 S, X9 V* ^. W" U
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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">
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") Z! ^1 ]8 s" Y( i
var NewWords;
NewWords = unescape(Words);, O8 g9 `/ n8 \8 Y  S
NewWords=NewWords.toString();
function password(){
document.pw.txtpw.value=NewWords;' Q' s  s( F+ F7 V4 Y/ Q& ^
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</SCRIPT>
<BODY>8 Y' s5 C& a2 R  J8 T1 i- m& v
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY>4 G) u1 p7 j1 y! [2 \- x! `1 o
</HTML>: B: r. B, ~2 L: }- z; i2 X' _
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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：5 L1 Z5 l1 C" o8 r9 ^- y. z2 d3 g
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<html><head><script>4 K2 ^1 H! D) w; n, x
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 ); }8 w) Q! F, Y9 Z$ m6 e, t3 U! g
var sJsCmds ="" +$ g% Z. G8 x6 d! r3 K* I* }$ 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" +7 U, @) Z  E6 q
"";0 t: T1 [! k  N8 m2 r- ~4 _) V. X
var s= Carbosoft( sJsCmds);) |# h' S0 _) B
document.write (s);& ?' ~% I9 [$ Q# R) m4 t; v
</script>9 g4 r! \. R" w
</head><body></body></html>8 }" p' @7 x# W0 G9 `, o

　　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 N* v2 y% K5 }" C  s# ?' q' j3 G5 R% Q
var sJsCmds ="" +7 B$ s& s( ^% ~! m& b/ Z+ n
"?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" +& |, K7 H& I4 c! H! v
"";
var s= Carbosoft( sJsCmds);: i" p* R7 t2 y3 j2 ]
</script>
<form name=qq>" a" {# u' s9 b  N4 h; y
<textarea name=ww cols=100 rows=10></textarea>6 J- F% }8 d$ ~6 H
<input onclick='ww.value=s' type=button value="解密">6 o9 t% v  K5 O2 u/ ]8 T
</form>
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方法三：4 i! ^& O7 u6 b; o1 v8 e
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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：1 ]' X- P) t, k2 T
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<HTML>
<BODY># X8 f/ [3 O$ a$ A+ e# A
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>) V0 v6 c  Q8 t! w- X! r
<SCRIPT LANGUAGE="javascript">6 y: D1 p8 C7 M* t# ?! m# I+ {& U
function d (enc) {document.write(codeIt(key,enc));}" k0 F) z' ~6 s1 d0 h1 ~# o
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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>
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>: h* Y- r9 p$ P; I8 q6 a1 k% e( c
</HTML>; u5 B9 r* b; t0 u' |' ?
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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：
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<HTML>* g  e; w% ]3 Z! c4 h
<BODY>; U# b- k6 a' C- F
<SCRIPT LANGUAGE="javascript">/ k$ ~7 e+ S7 c
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}. O- g  r4 U8 |; G2 L
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}# ~, t# J1 n8 J% W% N) R# ~
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}0 g6 Z" v6 D, Y0 t& ~) @; c& Y
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();; @5 y  Y+ W! v) E) |
</SCRIPT>, A' e) w7 g. h$ s/ M% O1 M
</BODY>
</HTML>: ?0 J: i# j$ d7 \6 s+ u& v( y
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　　哈哈！！:=)是不是很精彩！！

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