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！！/ x8 p8 ^+ D( b" X: ^

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：
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<HTML>, b9 V+ w, f6 p  [1 t. K" X8 ^4 z
<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;
NewWords = unescape(Words);, _0 j) {5 R" ^* @
document.write(NewWords)
</SCRIPT>/ m, |3 E8 }( S, j4 Y' v8 Y
<BODY>
</BODY>
</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：

<HTML><SCRIPT LANGUAGE="javascript">( g' o5 i6 r+ J  h0 M
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"+ P* ^3 _' v& Q; s
var NewWords;
NewWords = unescape(Words);  ]% O6 l. e) R& E# Y/ O  i# c: c) L
NewWords=NewWords.toString();
function password(){, Y' O  {+ X2 J- q
document.pw.txtpw.value=NewWords;$ @, w0 j* S$ R3 Y9 O
}" F4 X5 i+ R# ]% q5 O# r$ ~6 Z
</SCRIPT>* c* [/ s% \. E7 U3 b+ N
<BODY>& d& X6 P3 Z0 \& ]4 w
<form name=pw>2 i  Y+ A; Q% J% }& G2 D* \
<input type=button onclick="password()" value="解密">  q; O% y6 Y$ _) X& R  @
<br>- Q# g9 e) f# E$ V
<textarea name="txtpw" cols="100" rows="100"></textarea>( G' H5 G: E' o% c: e# J
</form>5 D6 w; v" P$ f
</BODY>7 B$ _3 [0 O, ?' f
</HTML>% d4 q% J  y+ w$ J2 X% t6 Z+ n+ s+ G

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：
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<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" +% y7 S& H5 Q, o7 M; h
"";
var s= Carbosoft( sJsCmds);; D  N% f' l4 L
document.write (s);
</script>
</head><body></body></html>

　　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：

<script>& D8 e, P, i! f% 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 ); }- J$ u' m3 y0 W* v  \7 a3 F
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" +) X! `6 r9 N7 \8 a) w+ K& ~  ?
"";. I; k' ]+ u  c& T/ O& L
var s= Carbosoft( sJsCmds);
</script>% f0 W0 x' p. W( Z" s
<form name=qq>
<textarea name=ww cols=100 rows=10></textarea>5 y  q/ c$ ~% l3 ]9 ^
<input onclick='ww.value=s' type=button value="解密">
</form>
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方法三：5 k  u" x, i: n! l

　　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：

<HTML>/ r/ a2 _( J/ |1 E9 u7 W+ t
<BODY>
<SCRIPT LANGUAGE="javascript">9 F, g3 ]/ C, T. u
function Decode() {7 C; j% u. C& o. w- [1 j
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function d (enc) {document.write(codeIt(key,enc));}- u: x5 |/ b: h2 j& y
var key = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\"\ \|#$%&\'()*+,-.\/:;<=>?@[\\]^_\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;}. {' x7 ?. k, m1 e
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
Decode();2 o% C; m3 ?1 y0 c% e3 Q: i, P8 r* Q
</SCRIPT>
</BODY>; @* k, B' q8 b
</HTML>+ P, u# @$ u* d" g

　　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：" P  v% w9 `+ j
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<HTML>4 q1 o1 i8 I" k. j
<BODY>
<SCRIPT LANGUAGE="javascript">
function Decode() {: ^* W* t6 I0 o" l: G* z; A
d("FrfmnD");d("FruyvDFgwhqjfWnyeseysuEXpydy%whqjf~J~XWghwEXfkjJpgXDFIgwhqjfD");d("FmufyWrffjKuieqdEX?klfulfK$ajuXWwklfulfEXfubfIrfmnGWwryhgufEsx}{~}XD");d("FfqfnuDejFIfqfnuD");d("FIruyvD");d("FxkvaD");d("FIxkvaD");d("FIrfmnD");d("W");return 0;}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">! W: _3 ~$ J  z) C9 T/ F
function d (enc) {alert(codeIt(key,enc));}: b" z* @  f# b5 Y! `
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>% J' B! G* g  n( ~" o
<SCRIPT LANGUAGE="javascript">
Decode();
</SCRIPT>' n* p4 x) }) n& E+ ~7 I1 ^/ H: }  d
</BODY>0 z8 g# o1 Y  W+ v
</HTML>

　　哈哈！！:=)是不是很精彩！！

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