private void buttonStartClick(object sender, EventArgs e)
{
if (Thread.CurrentThread.GetApartmentState() == ApartmentState.STA)
{
Thread thread = new Thread(new ThreadStart(delegate { buttonStartClick(sender, e); }));
thread.IsBackground = true;
thread.Start();
return;
}
Rijndael aes = new Rijndael(Tools.StringToBytes(textBoxKey.Text));
Stream messageFile = new PKCSPaddedStream(aes, new FileStream(labelMessage.Text, FileMode.OpenOrCreate)),
cipherFile = new FileStream(labelCipher.Text, FileMode.OpenOrCreate);
IBlockCipherMode blockMode = null;
if (radioButtonCFB.Checked)
blockMode = new CipherFeedback(aes, Tools.StringToBytes(textBoxIv.Text));
else if (radioButtonCTR.Checked)
blockMode = new SegmentedIntegerCounter(aes, Tools.StringToBytes(textBoxIv.Text));
else if (radioButtonECB.Checked)
blockMode = new ElectronicCodeBook(aes);
else if (radioButtonCBC.Checked)
blockMode = new CipherBlockChaining(aes, Tools.StringToBytes(textBoxIv.Text));
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
long bytes;
if (radioButtonEncrypt.Checked)
{
bytes = messageFile.Length;
blockMode.Encrypt(messageFile, cipherFile);
}
else
{
bytes = cipherFile.Length;
blockMode.Decrypt(cipherFile, messageFile);
}
stopwatch.Stop();
Console.WriteLine(stopwatch.Elapsed + " (" + (stopwatch.Elapsed.Ticks / bytes) + " ticks/byte)");
MessageBox.Show("Cryption done!", stopwatch.Elapsed + " (" + (stopwatch.Elapsed.Ticks / bytes) + " ticks/byte)");
messageFile.Close();
cipherFile.Close();
}
public ChatTab(IBlockCipher cipher, PKCSPaddedStream stream, Socket socket)
: base()
{
this.cipher = cipher;
this.stream = stream;
Text = socket.RemoteEndPoint.ToString();
textBox.Multiline = true;
textBox.ReadOnly = true;
textBox.Size = new Size(479, 399);
textBox.Location = new Point(6, 6);
textBox.Font = new Font("Consolas", 10);
Controls.Add(textBox);
}