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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方法一：0 g( j9 I- X9 A
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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：9 R& m; \3 A  y; E; b
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<HTML>
<SCRIPT LANGUAGE="javascript">: d/ s; ?4 V  e7 }/ w2 e) A# T
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") \% V! F* Z; i" X  |
var NewWords;
NewWords = unescape(Words);
document.write(NewWords)- p- ]" x! r# d0 H  `
</SCRIPT>5 z6 d, j4 `$ x
<BODY>- `: y2 ^9 `4 c
</BODY>6 s7 V+ b, z& l0 b2 b. R
</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：* H4 g& v$ R/ J6 R' m5 V
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<HTML><SCRIPT LANGUAGE="javascript">4 b) P% T: D& K& I* Z
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;9 O; X" N6 H: W+ q* Z1 d
NewWords = unescape(Words);8 C& P' d. l' u  L% C8 o3 r- s
NewWords=NewWords.toString();
function password(){  C. x* ^# N% G% c7 j% M3 G2 D; D
document.pw.txtpw.value=NewWords;
}
</SCRIPT>
<BODY>  M+ M1 a! Z) w5 \
<form name=pw>
<input type=button onclick="password()" value="解密">6 f" |/ _5 [4 q1 X' }5 q
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>
</BODY># F  k; c3 ^. F
</HTML>

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：

<html><head><script>/ ~$ `- }) b- `: h8 x$ Y$ T
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 ); }, Z+ L1 i$ h0 E' X
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);0 N8 F, A: _/ {
document.write (s);5 g* p6 u- H+ f* |
</script>5 s& Z: R5 J! R
</head><body></body></html>/ P/ L& }: s: g
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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：
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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 ); }
var sJsCmds ="" +( o5 l7 ]3 C/ O" |# f
"?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" +' O4 |' H- A6 }4 E  c
"";
var s= Carbosoft( sJsCmds);
</script>
<form name=qq>3 d9 q0 t4 I- Z9 c/ _) ^
<textarea name=ww cols=100 rows=10></textarea>4 c+ b$ p- I% x5 L! W) @3 ?
<input onclick='ww.value=s' type=button value="解密">! g+ {  u. r% t8 }/ f6 J9 C7 O
</form>

方法三：
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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：/ C0 f5 C9 s1 @0 k# W$ b
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<HTML>
<BODY>9 o+ z9 G9 o( A+ {3 {
<SCRIPT LANGUAGE="javascript">. E1 Y" q' [  C
function Decode() {
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}2 D8 I8 @' Z4 s% p" W7 A: z" U. t
</SCRIPT>) p) ^% v( V5 V4 P* J) U" ^, Y+ L& g
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}4 O7 x9 D; I/ v+ \/ V5 I5 d
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% l# d" K. z- e2 ~5 u
Decode();* p- ?6 }. F7 q. T) Q1 t8 k. [& B
</SCRIPT>3 j) a# m& U! B0 J) F7 Q
</BODY>
</HTML>1 y8 F4 @6 L' [) O. Y- _9 y. m9 B! a

　　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：  D  ~1 q0 [+ }0 l4 y* p
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<HTML>! G/ x% l2 m0 B" U" V
<BODY>, E0 D; U* X! b) f
<SCRIPT LANGUAGE="javascript">
function Decode() {/ T! L2 F2 M5 F. x
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}% M" _1 g6 ^; W( r+ m
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}% L' H/ P) n+ I3 \! y% ^; x
</SCRIPT>0 l+ ^$ k, a3 P2 L: J* a
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>
</BODY>
</HTML>$ q4 O% h9 d! e$ y3 F2 I+ X
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　　哈哈！！:=)是不是很精彩！！

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