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！！" @4 l* O3 C  D$ t) p5 P
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方法一：
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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：( T# h$ D8 B$ \1 K' N
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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"
var NewWords;) _: D3 a9 ?1 w" z6 G& _
NewWords = unescape(Words);0 s) t" V0 F) T! Q5 c
document.write(NewWords)0 U0 [. q- B1 Y+ X0 x
</SCRIPT>
<BODY>
</BODY>! n# Y0 o- b" l* |
</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：) S8 @1 ]9 V, y% a; N1 q

<HTML><SCRIPT LANGUAGE="javascript">) V  G1 E# X+ n3 X# l) @5 }
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"4 Z& g) I' e9 P! X0 R
var NewWords;
NewWords = unescape(Words);- o* N% Q. u  i$ F9 ~4 C
NewWords=NewWords.toString();4 ]( ?: {$ n4 M3 W! M
function password(){
document.pw.txtpw.value=NewWords;
}
</SCRIPT>% p! h9 N' ^$ r
<BODY>
<form name=pw>7 y0 a, c' w7 O+ K8 ?4 D
<input type=button onclick="password()" value="解密">* r* A/ U$ o3 c1 J" x, s
<br>
<textarea name="txtpw" cols="100" rows="100"></textarea>
</form>; K& ?6 h: A( P2 z: W6 P6 y
</BODY>
</HTML>' h( j, i5 b" ?5 |- S9 i3 J
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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：4 S- T! w- t! i) s; R/ H

<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 ="" +
"?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);# {, N, r) _9 C6 ?  \6 C8 e# c# l
document.write (s);0 W8 [2 q% h) ~" [4 o$ R& ]
</script>1 |& ?/ w& ?9 V& n
</head><body></body></html>2 Y2 N. V% [1 t) x3 O$ B; r

　　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：% {6 M: c. D5 K/ k9 w, D, d# c

<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 ="" +
"?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" +
"";) j3 M. k) @# O) s' W+ y- B% ^
var s= Carbosoft( sJsCmds);3 L% U3 p' x  E; h) C
</script>
<form name=qq>: ]2 G+ V. [1 q. T8 F& N, W
<textarea name=ww cols=100 rows=10></textarea>, e' U$ R; x/ }5 D
<input onclick='ww.value=s' type=button value="解密">
</form>& |9 m% F, M' Z+ y  C) u

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：- [2 X9 s3 s- i) s7 v& w% R4 `& x

<HTML>
<BODY># `; A; B% {4 p( L( z
<SCRIPT LANGUAGE="javascript">4 Q( j: q  I" W' ^- P) c
function Decode() {: S0 L0 n- s1 F- h
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}7 ~4 ~1 y) x3 s4 Z6 W
</SCRIPT>1 R. ~" ]8 o/ A' x/ f% B
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}2 y# M' L  M0 o- j/ U
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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 ^$ d8 x- d7 T+ o" @' M
</SCRIPT>2 L6 W2 R. H9 A
<SCRIPT LANGUAGE="javascript">1 o9 n3 ~1 S; w1 i2 Q5 f
Decode();* g: ^5 }" z0 `$ C3 m
</SCRIPT>- S' \- v: l$ k$ v& e2 f
</BODY>8 X  @2 F( X* s$ D4 L
</HTML>

　　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：) u) \( W# O) L8 ~3 ]& q

<HTML>
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {0 A/ I- ~, X! @0 Y  I
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}/ t: ^0 j3 v3 p+ w7 X
</SCRIPT>
<SCRIPT LANGUAGE="javascript">% A/ B% C9 Q: y, W" C, u  [
function d (enc) {alert(codeIt(key,enc));}
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}$ @. U  V; v: _0 n3 e5 }
</SCRIPT>' e1 Z+ m5 m+ j. Z
<SCRIPT LANGUAGE="javascript">
Decode();. o8 L) }7 |2 ~. e
</SCRIPT>
</BODY>
</HTML>

　　哈哈！！:=)是不是很精彩！！

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