本文介绍一种用CFS编码对函式库进行加密的方法。

<%
'********************************************
'**
'*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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