public static void SaveKey(RsaKeyPair Key)
{
string json = Key.ToJson();
byte[] bytes = Crypto.RsaEncrypt(masterKey.PublicCsp, System.Text.Encoding.UTF8.GetBytes(json));
string filename = $"{path}\\{Key.Hash.Replace("+", "").Replace("=", "").Replace("/", "").Substring(0, 16)}.key";
if (System.IO.File.Exists(filename))
{
System.IO.File.Delete(filename);
}
System.IO.File.WriteAllBytes(filename, bytes);
}
private void exportButton_Click(object sender, RoutedEventArgs e)
{
RsaKeyPair key = ((Button)e.OriginalSource).DataContext as RsaKeyPair;
Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
dlg.FileName = MakeValidFileName((string.IsNullOrWhiteSpace(key.Note) ? "" : key.Note + ".") + (key.PublicOnly ? "Public." : "") + key.Hash.Substring(0, 16));//key.Hash.Substring(0,16);
dlg.Filter = "JSON (.json)|*.json|plain text (*.txt)|*.txt|All files (*.*)|*.*";
dlg.FilterIndex = 1;
dlg.RestoreDirectory = true;
dlg.Title = "Export Key";
if (dlg.ShowDialog() == true)
{
try
{
if (System.IO.File.Exists(dlg.FileName))
{
System.IO.File.Delete(dlg.FileName);
}
if (dlg.FileName.EndsWith(".JSON", StringComparison.InvariantCultureIgnoreCase))
{
System.IO.File.WriteAllText(dlg.FileName, key.ToJson());
}
else
{
string text = key.PublicKey;
if (!key.PublicOnly)
{
text += "\n" + key.PrivateKey;
}
text += "\n";
System.IO.File.WriteAllText(dlg.FileName, text);
}
MessageBox.Show("File saved", "Success", MessageBoxButton.OK, MessageBoxImage.Asterisk);
}
catch (Exception ex)
{
MessageBox.Show($"Encountered an error while trying to write to\n{dlg.FileName}", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}