private void SignOperationTo()
{
try
{
var operation = DetermineOpearation();
var operationAsn1 = Asn1Formatter.SetCommandAsn1((int)Cmd.sign);
handler.Send(operationAsn1);
data = handler.Recieve();
if (Encoding.ASCII.GetString(Asn1Formatter.GetCertAsn1(data)) == "ESTABLISHED")
{
int certIndex = (int)CerificatesBox.Invoke(new Func <int>(() => CerificatesBox.SelectedIndex));
handler.Send(crypter.Sign(Encoding.ASCII.GetBytes(textBox1.Text), certIndex));
}
else
{
throw new Exception("Error while send");
}
}
catch (NullReferenceException ne)
{
var errorCode = Asn1Formatter.SetCommandAsn1((int)Cmd.error);
handler.Send(errorCode);
MessageBox.Show(ne.Message);
Console.WriteLine(ne.Message);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
private void GetCertsFromServer(object sender, EventArgs e)
{
var asn1Cmd = Asn1Formatter.SetCommandAsn1((int)Cmd.certs);
int.TryParse(textBox3.Text, out int port);
handler = new ClientSocket(textBox2.Text, port);
handler.Init();
handler.Send(asn1Cmd);
data = handler.Recieve();
BERelement certsNames = BERelement.DecodePacket(data);
CerificatesBox.DataSource = null;
CerificatesBox.Items.Clear();
foreach (var cert in certsNames.Items)
{
CerificatesBox.Items.Add(Encoding.ASCII.GetString(cert.Value));
}
CerificatesBox.SelectedIndex = 0;
}