contencrypt.asp

图书管理系统是用VC++做的有兴趣的可以来共同研究研究

<%
'========================================================================================
' 文 件 名: contencrypt.asp
' 版    本: 自由岭锋行业专用留言系统1.78 ( LF Message SyStem 1.78 )
' 说    明: 加密与解密文件 | 请小心修改为自己的风格
' 文件日期: 2005-12-24
' 设 计 者： 疾风之狼
'========================================================================================
' Copyright (C) 2001--2005 自由岭锋. All rights reserved.
' 网    站: http://lingfengnet.com,
' 电子邮件: [e-mail]
' 联系ＱＱ: 85112407
'========================================================================================
%>
<!-- #include file="key.asp" -->
<%
lingfengnet_ms_kdc_key = left(int(zylf_keypass),2)

Function EnCrypt(strCryptThis)
   Dim strChar, iKeyChar, iStringChar, i
   for i = 1 to Len(strCryptThis)
      iStringChar = Asc(mid(strCryptThis,i,1))
      iCryptChar = iStringChar Xor lingfengnet_ms_kdc_key
      strEncrypted =  strEncrypted & Chr(iCryptChar)
   next
   EnCrypt = strEncrypted
End Function

Function DeCrypt(strEncrypted)
Dim strChar, iKeyChar, iStringChar, i
   for i = 1 to Len(strEncrypted)
      iStringChar = Asc(mid(strEncrypted,i,1))
      iDeCryptChar = iStringChar Xor lingfengnet_ms_kdc_key
      strDecrypted =  strDecrypted & Chr(iDeCryptChar)
   next
   DeCrypt = strDecrypted
End Function
%>