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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方法一：5 J: ~9 A4 A0 ~" o
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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>
<SCRIPT LANGUAGE="javascript">4 u# z. {& ~; _2 ]
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"5 J% e+ i5 ~# K9 B  g" q4 [/ P
var NewWords;6 O. @- d  ]8 U8 |- ?/ m, {" _
NewWords = unescape(Words);
document.write(NewWords)9 M0 T4 f/ F5 _1 t
</SCRIPT>1 Y  d5 P- Y% A- p- I4 u. \" n
<BODY>8 v+ f# f" n$ Y. x
</BODY>
</HTML>8 G4 Y. L: a; j

　　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：. E5 s' x6 {) s2 |+ i. e: Z; M/ W/ z
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<HTML><SCRIPT LANGUAGE="javascript">0 {5 M' i/ G+ p' 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"" t7 M2 F( S* V, f/ I
var NewWords;
NewWords = unescape(Words);# E) B: q/ f( ^) Y, G" K. G, {
NewWords=NewWords.toString();6 K! I& l2 L; b7 E5 }( C
function password(){
document.pw.txtpw.value=NewWords;! F/ [" s. K; [. X$ b7 I
}
</SCRIPT>1 i% {5 `6 [: e3 R3 a+ P3 n% b
<BODY>
<form name=pw>
<input type=button onclick="password()" value="解密">  ~- S0 q) F& z4 l
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>' _2 q" C( M- H1 y9 i: O# Z
</form>
</BODY># c; G( [3 |$ i/ U# H4 j
</HTML>% y) a- ^7 B8 j" L9 p6 Z
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方法二：0 l( v2 `8 I% L' Q9 n# A) @9 W
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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：* m% S. L  p/ Q# ?7 a! Z8 o
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<html><head><script>" K. H2 k' I& ]; K0 w' H. `
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 ); }* u: g& ~& C7 P( ?
var sJsCmds ="" +8 Z  |" g  A, H7 y# j$ V
"?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" +( ?/ `/ x& f+ j
"";& b7 _' f; ?1 B9 V: i
var s= Carbosoft( sJsCmds);
document.write (s);
</script>
</head><body></body></html>6 U2 n& G) s5 {6 ^- C. Z

　　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：( ]; p! K. T; L/ P0 j
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<script>* [! U3 P. O/ w7 |
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 ); }4 k: ?- r. ~2 B
var sJsCmds ="" +: p6 {2 Z9 l4 m6 [! X, {
"?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);5 O' o- Z) b: z4 r) G' |+ I& A
</script>
<form name=qq>4 X  M7 E4 {4 I! b4 L7 b
<textarea name=ww cols=100 rows=10></textarea>( ~. i6 Z* p) k. z/ G
<input onclick='ww.value=s' type=button value="解密">8 c( ?, K# g9 T4 k% d2 s
</form>

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方法三：  K# G4 ^3 k7 A3 J6 u% s: f
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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：; Y/ [; A/ ]8 F0 V* j1 [( e
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<HTML>4 M; ]: e, a' U- p) V) J9 x
<BODY>, V' a6 b, V; r2 q& o3 [' d$ P) U( W
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">- `, O7 {# q# Q" B- a6 s
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}1 t/ F( f  e0 ~& {. k* {2 c
</SCRIPT>5 C0 M$ B: D- O8 {, t* t; w9 {, r
<SCRIPT LANGUAGE="javascript">' o1 h5 q2 j1 Y
Decode();7 a$ u/ y, z$ j
</SCRIPT>
</BODY>
</HTML>1 C' {1 m; V+ C$ s" F
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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：: F' \' C' l0 b8 y2 t; W

<HTML>1 E) b+ }8 j" S$ I# D
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}& D+ `2 Q# \% ~9 Q  B% f
</SCRIPT>; V- Q  H, |  _- ?" o6 [
<SCRIPT LANGUAGE="javascript">: l+ G3 l. g* \- I! J9 f. ^
Decode();
</SCRIPT>
</BODY>
</HTML>

　　哈哈！！:=)是不是很精彩！！

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