安全技巧之用CFS編碼對(duì)函式庫(kù)進(jìn)行加密
2007-03-08 賽迪網(wǎng)安全社區(qū)
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本文介紹一種用CFS編碼對(duì)函式庫(kù)進(jìn)行加密的方法。
<%
'********************************************
'**
'*CFS Encode Function*
'**
'*Produced by ASP-Zone*
'**
'*Main website is located at*
'*http://asp.diy.com.tw/*
'**
'*E-MAIL:*
'*thiefghost@games.com.tw*
'**
'*Use this function:*
'*<!--#include file="Codefun.fun" -->*
'**
'*2001/8/3*
'**
'********************************************
'Encode Function
Function CfsEnCode(CodeStr)
Dim CodeLen
Dim CodeSpace
Dim NewCode
CodeLen = 30
CodeSpace = CodeLen - Len(CodeStr)
If Not CodeSpace < 1 Then
For cecr = 1 To CodeSpace
CodeStr = CodeStr & Chr(21)
Next
End If
NewCode = 1
Dim Been
For cecb = 1 To CodeLen
Been = CodeLen + Asc(Mid(CodeStr,cecb,1)) * cecb
NewCode = NewCode * Been
Next
CodeStr = NewCode
NewCode = Empty
For cec = 1 To Len(CodeStr)
NewCode = NewCode & CfsCode(Mid(CodeStr,cec,3))
Next
For cec = 20 To Len(NewCode) - 18 Step 2
CfsEnCode = CfsEnCode & Mid(NewCode,cec,1)
Next
End Function
Function CfsCode(Word)
For cc = 1 To Len(Word)
CfsCode = CfsCode & Asc(Mid(Word,cc,1))
Next
CfsCode = Hex(CfsCode)
End Function
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