public MainWindow()
    {
        InitializeComponent();
        var sp = new StringProvider();

        ViewModel             = new MainWindowViewModel();
        ViewModel.Greeting    = string.Concat(sp.GetGreeting(), " ", sp.GetConference(), sp.GetPunctuation());
        this.DataContext      = ViewModel;
        this.StringEncoder    = new StringUtilities(EncodingFormats.ASCII);
        this.CertificateStore = new Dictionary <string, Certificate>();
    }