private void EncryptOperationTo()
{
try
{
crypter = new Crypter();
var operation = DetermineOpearation();
var operationAsn1 = Asn1Formatter.SetCommandAsn1((int)Cmd.cipher);
byte[] buffer;
handler.Send(operationAsn1);
data = handler.Recieve();
var text = (string)CerificatesBox.Invoke(new Func <string>(() => CerificatesBox.Text));
var asn1Cert = Asn1Formatter.SetCertNameAsn1(Encoding.ASCII.GetBytes(text));
handler.Send(asn1Cert);
data = handler.Recieve();
byte[] cert = Asn1Formatter.GetCertAsn1(data);
crypter.FromBytesToCert(cert);
byte[] symivBytes = Asn1Formatter.SetSymKeyAndIVAsn1(crypter.GetEncryptedSymKey(), crypter.IV);
handler.Send(symivBytes);
data = handler.Recieve();
if (Encoding.ASCII.GetString(Asn1Formatter.GetCertAsn1(data)) == "ESTABLISHED")
{
text = (string)textBox1.Invoke(new Func <string>(() => textBox1.Text));
buffer = crypter.Encrypt(Encoding.ASCII.GetBytes(text));
handler.Send(buffer);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
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);
}
}