C# Cryptography api simple usage

namespace RookIEBox{
    using System;
    using Microsoft.Win32;
    using System.Security.Cryptography;

    public class Register{
        public bool Verify(){
            RegistryKey regKey = Registry.CurrentUser.CreateSubKey("Software\\RookieSoft");
            if(regKey != null){
                //System.Console.WriteLine(regKey.GetValue("").ToString());
                regKey.SetValue("Year", 0xEE);
                regKey.Close();
            }
            System.Console.WriteLine(GetKeyString());
            return true;
        }

        private string GetKeyString(){
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            Byte[] db_key = new Byte[des.Key.Length + des.IV.Length];
            des.Key.CopyTo(db_key, 0);
            des.IV.CopyTo(db_key, des.IV.Length);

            return System.Convert.ToBase64String(db_key);
        }

        public static void Main(){
            Register reg = new Register();
            reg.Verify();
        }
    };
}