private void button2_Click(object sender, EventArgs e)
{
string plain_text = richTextBox1.Text;
byte[] plain_text_bytes = Encoding.ASCII.GetBytes(plain_text);
Gost3411CryptoServiceProvider hash = new Gost3411CryptoServiceProvider();
byte[] signature = csp.SignData(plain_text_bytes, hash);
BERelement main_seq = new BERelement(0x30);
BERelement sign_seq = new BERelement(0x30);
//sign_seq.AddItem(new BERelement(0x0c, Encoding.UTF8.GetBytes("sign")));
sign_seq.AddItem(new BERelement(0x02, signature));
sign_seq.AddItem(new BERelement(0x02, plain_text_bytes));
main_seq.AddItem(sign_seq);
byte[] test = main_seq.GetEncodedPacket().ToArray();
File.WriteAllBytes("asn2", test);
/*
* BERelement mSeq = BERelement.DecodePacket(test);
* BERelement sSeq = null;
* sSeq = mSeq.Items[0];
* var signed2 = sSeq.Items[0].Value;
* MessageBox.Show(signed2.Length.ToString());
* var msg = sSeq.Items[1].Value;
*/
//send data
try
{
Int32 port = 9595;
TcpClient client = new TcpClient("127.0.0.1", port);
NetworkStream stream = client.GetStream();
stream.Write(mode, 1, 1);
// stream.Write(signature, 0, signature.Length);
//stream.Write(plain_text_bytes, 0, plain_text_bytes.Length);
stream.Write(test, 0, test.Length);
stream.Close();
client.Close();
}
catch (ArgumentNullException exception)
{
MessageBox.Show("ArgumentNullException: " + exception);
}
catch (SocketException exception)
{
MessageBox.Show("SocketException: " + exception);
}
}
