public static byte[] secretDataToByte(SecretData data)
{
if (data == null)
{
return(null);
}
//byte[] byteArray = null;
//if (data.SecretText != "")
//{
// Console.WriteLine(data.SecretText);
// byteArray = Encoding.UTF8.GetBytes(data.SecretText);
//}
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, data);
ms.Seek(0, 0);
StreamReader rdr = new StreamReader(ms);
string str = rdr.ReadToEnd();
byte[] byteArray = Encoding.ASCII.GetBytes(str);
return(byteArray);
}
private void button2_Click(object sender, EventArgs e)
{
button1.Enabled = true;
button2.Enabled = false;
button3.Enabled = true;
incomingData = null;
serverSocket.Start();
Console.WriteLine("Server Started");
clientSocket = serverSocket.AcceptTcpClient();
Console.WriteLine("Accept connection from client");
BinaryFormatter bformatter = new BinaryFormatter();
NetworkStream networkStream = clientSocket.GetStream();
incomingData = (PacketData)bformatter.Deserialize(networkStream);
Console.WriteLine(incomingData.stegoLength);
SecretData tempSecretDt = new SecretData();
tempSecretDt.SecretImage = incomingData.secretImage;
tempSecretDt.SecretText = incomingData.secretText;
byte[] secretByte = Converter.secretDataToByte(tempSecretDt);
Console.WriteLine(secretByte.Length);
ElementRGB carrier = Converter.imageToElementRGB(incomingData.realImage);
temp = Steganography.CreateStegoImage(carrier, secretByte, (Bitmap)incomingData.realImage);
}
public static SecretData ExtractSecretData(Image StegoImage, int stegoLength)
{
//Operasi extraksi secret data di sini
List <int> embededData = new List <int>();
int s1, s2, s3;
ElementRGB rgbData = Converter.imageToElementRGB(StegoImage);
for (int i = 0; i < stegoLength; i++)
{
s1 = rgbData.Red.ElementAt(i) % 3;
s2 = rgbData.Green.ElementAt(i) % 3;
s3 = rgbData.Blue.ElementAt(i) % 3;
embededData.Add(s1);
embededData.Add(s2);
embededData.Add(s3);
}
//while ((embededData.Count % 8) != 0)
embededData.RemoveAt(embededData.Count - 1);
int[] base3Data = new int[embededData.Count];
for (int i = 0; i < embededData.Count; i++)
{
base3Data[i] = embededData.ElementAt(i);
}
int[] base2Data = Converter.base3ToBase2(base3Data);
BitArray binaryData = Converter.NumericToBinary(base2Data);
byte[] byteData = Converter.ToByteArray(binaryData);
SecretData secretData = Converter.byteToSecretData(byteData);
return(secretData);
}
private void Form1_Load(object sender, EventArgs e)
{
data = new SecretData();
//pictureBox3.Image = null;
//stegoLength = 18;
//byte[] outStream = System.Text.Encoding.ASCII.GetBytes(msg);
//serverStream.Write(outStream, 0, outStream.Length);
//serverStream.Close();
//serverStream.Flush();
}
public static SecretData byteToSecretData(byte[] array)
{
//Console.WriteLine(array.Length);
//String msg = Encoding.UTF8.GetString(array);
//SecretData data = new SecretData();
//data.SecretText = msg;
//Console.WriteLine(msg);
MemoryStream memStream = new MemoryStream(array);
BinaryFormatter binForm = new BinaryFormatter();
//memStream.Write(array, 0, array.Length);
memStream.Seek(0, 0);
memStream.Position = 0;
SecretData data = (SecretData)binForm.Deserialize(memStream);
return(data);
}
private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Image = incomingData.stegoImage;
stegoLength = incomingData.stegoLength;
SecretData data = new SecretData();
if (data.SecretText != null)
{
data = Steganography.ExtractSecretData(incomingData.stegoImage, incomingData.stegoLength);
textBox1.Text = data.SecretText;
}
else
{
pictureBox2.Image = incomingData.secretImage;
}
serverSocket.Stop();
}