private void LoadPublicKeyButton_Click(object sender, RoutedEventArgs e)
        {
            OpenFileDialog OpenDialog = new OpenFileDialog();

            OpenDialog.Title = "Wybierz plik zawierający klucz publiczny";

            if (OpenDialog.ShowDialog() == true)
            {
                string publicKey = File.ReadAllText(OpenDialog.FileName, Encoding.UTF8);
                RsaManager.SetKey(false, publicKey);
                PublicKeyTextBlock.Text = RsaManager.GetKeyString(false);
            }
        }
 private void GenerateKeyParButton_Click(object sender, RoutedEventArgs e)
 {
     PrivateKeyLoadingImage.Visibility = Visibility.Visible;
     PublicKeyLoadingImage.Visibility  = Visibility.Visible;
     PrivateKeyTextBlock.Text          = "";
     PublicKeyTextBlock.Text           = "";
     Task.Run(() =>
     {
         RsaManager.GenerateKeyPar();
         this.Dispatcher.Invoke(() =>
         {
             PrivateKeyLoadingImage.Visibility = Visibility.Collapsed;
             PublicKeyLoadingImage.Visibility  = Visibility.Collapsed;
             PrivateKeyTextBlock.Text          = RsaManager.GetKeyString(true);
             PublicKeyTextBlock.Text           = RsaManager.GetKeyString(false);
         });
     });
     //Task task = Task.Run((Action)RsaManager.generateKeyPar);
     //task.ContinueWith((t) =>
     //{
     //    PrivateKeyTextBlock.Text = RsaManager.GetKeyString(true);
     //    PublicKeyTextBlock.Text = RsaManager.GetKeyString(false);
     //});
 }