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！！7 T# t5 u; f  T

方法一：

　　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：2 r8 k3 r8 L/ b
7 [' m' D& L6 z  J( P8 B2 S
<HTML>
<SCRIPT LANGUAGE="javascript">9 _6 p) W/ m6 B5 L* n) q
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 \6 _1 c' j! T1 R4 \0 {' F
var NewWords;8 E( h/ C- y6 J
NewWords = unescape(Words);
document.write(NewWords): H+ u4 s' M: K
</SCRIPT>6 X( B. O$ V) Y4 A; k4 H
<BODY>
</BODY>+ {: f+ s: a$ F7 ~6 N6 @
</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：4 U3 b# k1 u4 P# Z

<HTML><SCRIPT LANGUAGE="javascript">. |. k3 c3 l0 b5 w1 L& }
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;
NewWords = unescape(Words);
NewWords=NewWords.toString();0 L3 t! T3 `- E5 \# x& y! h, ~
function password(){& ?" t" e7 z6 D+ I, V
document.pw.txtpw.value=NewWords;
}! @/ Z1 ~  Z- O& r; O
</SCRIPT>, g8 }5 q7 M# b; B6 A! n9 f8 l& |
<BODY>/ R7 Z( z; k0 @( ?" K
<form name=pw>
<input type=button onclick="password()" value="解密">
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>8 t: b& W6 X8 L
</form>/ }( [+ k0 `" u
</BODY>
</HTML>0 `! {' ~9 ]( u$ U; D& X0 S  q/ @4 X

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：8 G2 O8 d7 k2 B

<html><head><script>- V  D: \* w: T  I1 A" {
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" +
"";
var s= Carbosoft( sJsCmds);8 v# o$ d1 j9 J* X8 s$ |" d) p
document.write (s);7 \/ N! r: l- [  ]2 \
</script>
</head><body></body></html>
2 t3 B& \, f7 g* e
　　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：0 j. l5 H: Y$ d1 A
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<script>0 }. o/ F; u) O& l$ ^+ e
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 ="" +# d( U) ?6 ^, J5 h
"?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" +- \9 R+ s9 e6 C' d/ j+ y  W
"";# |# v3 U3 F# F. q+ m/ a7 s2 P
var s= Carbosoft( sJsCmds);
</script>! ^# _6 h0 X; _
<form name=qq>$ N0 @/ b% {3 K0 i6 h
<textarea name=ww cols=100 rows=10></textarea>
<input onclick='ww.value=s' type=button value="解密">3 Z( \" \- ~/ x7 ?/ D
</form>

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方法三：% D& y2 W$ \! F3 s$ r5 @

　　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：, X. R/ f: \- u- k" X7 u- H

<HTML>/ f2 C2 j) y/ p5 W4 e) ~7 A+ W0 x% x) `
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {; T8 ~8 z" _+ i, B
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}. ~; s" q: z4 j5 N6 _' L
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}% L; k9 G+ K4 |2 w) \* e
</SCRIPT>, v& v) h! F) ^% u$ r" P
<SCRIPT LANGUAGE="javascript">
Decode();) ]! q) S) N1 g0 a) d6 L% f/ g
</SCRIPT>* b5 K. O* m) ~; Z0 _
</BODY>
</HTML>  e* d' o8 s# e. G
8 S, I; N' H: b* U) f: r
　　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>( r  D4 B" k3 P" D$ t
<BODY>' \( F, F2 s$ X. \0 ^2 i
<SCRIPT LANGUAGE="javascript">
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}: u( {; G$ G9 u" u
</SCRIPT>
<SCRIPT LANGUAGE="javascript">' ~, P/ f# S6 k% t0 j; X  N2 o
function d (enc) {alert(codeIt(key,enc));}+ S* c$ t8 F2 ]6 m1 H
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\t\`{}~\n";function codeIt (mC, eS) {var wTG, mcH = mC.length / 2, nS = "", dv;for (var x = 0; x < eS.length; x++) { wTG = mC.indexOf(eS.charAt(x));if (wTG > mcH) {dv = wTG - mcH; nS = nS + mC.charAt(48 - dv);}else {dv = mcH - wTG;nS = nS + mC.charAt(48 + dv);}}return nS;}
</SCRIPT>3 o% x; J1 i" c; f$ v) F
<SCRIPT LANGUAGE="javascript">
Decode();: Z1 m1 t! _5 r4 G" }3 s+ U
</SCRIPT>* _) p6 U" j( w' _
</BODY>
</HTML>, Q# c" Z, M0 H5 b6 z
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　　哈哈！！:=)是不是很精彩！！

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