public void Setup()
{
_rsa = new HitaiAsymmetricEncryptionProvider();
_rsaPublic = new HitaiAsymmetricEncryptionProvider();
var kp = new Keypair {
Exponent = _e,
Modulus = _n
};
kp.SetPrivateExponentAsync(_d.ToByteArray(), "password").Wait();
_rsa.SetKeyPair(kp, "password");
_rsaPublic.SetKeyPair(kp.ToPublic());
}
private async void butGenerate_Click(object sender, EventArgs e)
{
// validate form
textBox_name.Text = textBox_name.Text.Trim();
bool nameValid = !string.IsNullOrWhiteSpace(textBox_name.Text);
textBox_email.Text = textBox_email.Text.Trim();
bool emailValid = !string.IsNullOrWhiteSpace(textBox_email.Text);
if (emailValid)
{
try {
new MailAddress(textBox_email.Text);
}
catch {
emailValid = false;
}
}
if (!nameValid)
{
MessageBox.Show("Jméno musí být vyplněno.");
return;
}
if (!emailValid)
{
MessageBox.Show("E-mail není v pořádku.");
return;
}
butGenerate.Enabled = false;
progressBar.Style = ProgressBarStyle.Marquee;
int selectedItem = comboBox_model.SelectedIndex;
await Task.Factory.StartNew(() => {
switch (selectedItem)
{
case 0: // .NET RSA
var sym = new SystemAsymmetricEncryptionProvider();
sym.EnsurePositiveModulus();
_aep = sym;
break;
case 1: // Hitai RSA
var hiaep = new HitaiAsymmetricEncryptionProvider();
try {
hiaep.GenerateNewKeypair(_cancellationTokenSource.Token);
}
catch (OperationCanceledException) {
Cancelled = true;
return;
}
_aep = hiaep;
break;
default:
throw new NotImplementedException();
}
});
if (Cancelled)
{
return;
}
progressBar.Style = ProgressBarStyle.Continuous;
butGenerate.Enabled = true;
var passwordCreationDialog = new CreatePasswordDialog();
if (passwordCreationDialog.ShowDialog() != DialogResult.OK)
{
return;
}
Keypair = _aep.GetPrivateKey(passwordCreationDialog.Password);
Keypair.CreationTime = DateTime.Now;
Keypair.Expires = dateTimePicker.Value;
Keypair.UserId = $"{textBox_name.Text} <{textBox_email.Text}>";
Keypair.RsaProvider =
Array.IndexOf(AsymmetricEncryptionController.ProviderList, _aep.GetType());
textBox_id.Text = Keypair.ShortId;
butSave.Enabled = true;
}
