private void openPrivateKeyToolStripMenuItem_Click(object sender, EventArgs e)
{
if (privateKey != null)
{
privateKey.Dispose();
privateKey = null;
}
openFileDialog1.Title = "Open Private Key";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
try
{
string privateKeyFile;
using (var streamReader = new StreamReader(openFileDialog1.FileName, Encoding.UTF8))
{
privateKeyFile = streamReader.ReadToEnd();
}
privateKey = RSAKeys.ImportPrivateKey(privateKeyFile);
}
catch (Exception ex)
{
privateKey = null;
resetOpenFileDialog();
MessageBox.Show("Error while importing Private Key" + Environment.NewLine + ex.Message);
return;
}
label6.Text = openFileDialog1.FileName;
}
resetOpenFileDialog();
toggleControls();
}
public static void SaveKeys(string keyFileName)
{
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(2048))
{
try
{
// Can be verified via:
// openssl rsa -in private.key -pubout > public2.pem
using (StreamWriter writer = File.CreateText(keyFileName + "_public.pem"))
{
writer.Write(RSAKeys.ExportPublicKey(rsa));
}
using (StreamWriter writer = File.CreateText(keyFileName + "_private.key"))
{
writer.Write(RSAKeys.ExportPrivateKey(rsa));
}
}
catch (Exception e)
{
MessageBox.Show("Error while writing keys to files." + Environment.NewLine + e.Message);
}
finally
{
rsa.PersistKeyInCsp = false;
}
}
}
