private void KeyFileNoButton_Click(object sender, EventArgs e)
        {
            MasterForm frm = new MasterForm();

            frm.Show();
            frm.PerformRefresh();
            this.Close();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            FileOP.SelectKeyFile();
            Crypto.EncryptFile(FileOP.GetFile(), FileOP.KeyFileToBits(FileOP.GetKeyFile()));
            FileOP.ClearKeyFile();
            MasterForm frm = new MasterForm();

            frm.Show();
            frm.PerformRefresh();
            this.Close();
        }