using System.Collections.Generic;
using System.Text;
using System.Globalization; 


#region Encrypt Password
    public string EncryptPwd(string szPwd)
    {
        string str = szPwd;
        string szEncrypt = "";
        int nIndex = 101, nFormat;
        foreach (char c in szPwd)
        {
            nFormat = ((int)c ^ nIndex) & 0xFF;
            szEncrypt += nFormat.ToString("X");
        }
        return szEncrypt;
    } 
    #endregion

   //Function which is used to decrypt password
   #region Decrypt Password
    public string DecryptPwd(string szPwd)
    {
        int nLength = szPwd.Length;
        string szPwdDecrypt = "";
        string szArray = szPwd;
        if ((nLength % 2) != 0)
            return "";
        int ii;
        string st;
        for (ii = 0; ii < nLength; ii += 2)
        {
            char[] szByte = new char[8];
            szByte[0] = szArray[ii];
            szByte[1] = szArray[ii + 1];
            szByte[2] = '\0';
            st = szByte[0].ToString();
            st += szByte[1].ToString();
            int uChar = Int32.Parse(st, NumberStyles.HexNumber);
            szPwdDecrypt += (char)((uChar ^ 101) & 0xff);
        }
        return szPwdDecrypt;
    }

    #endregion    // 3 mar 08