Ejemplo n.º 1
0
        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);
        }
Ejemplo n.º 2
0
        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);
        }
Ejemplo n.º 3
0
        private void btnCreateStegoImage_Click(object sender, EventArgs e)
        {
            //data = new SecretData();
            data.SecretImage = new Bitmap(pictureBox2.Image);

            byte[]     secretByte = Converter.secretDataToByte(data);
            ElementRGB carrier    = Converter.imageToElementRGB(pictureBox1.Image);

            Console.WriteLine(secretByte.Length);
            pictureBox3.Image = Steganography.CreateStegoImage(carrier, secretByte, (Bitmap)pictureBox1.Image);
            stegoLength       = carrier.StegoLength;

            pictureBox3.SizeMode = PictureBoxSizeMode.StretchImage;
            pictureBox3.Refresh();
            btnSendImage.Enabled = true;
            MessageBox.Show("Stego Image Created");
        }
Ejemplo n.º 4
0
        public static Image elementRGBToImage(ElementRGB data)
        {
            Bitmap img = new Bitmap(data.width, data.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);

            int i = 0;

            for (int x = 0; x < data.width; x++)
            {
                for (int y = 0; y < data.height; y++)
                {
                    Color imageColor = Color.FromArgb(data.Red.ElementAt(i), data.Green.ElementAt(i), data.Blue.ElementAt(i));
                    img.SetPixel(x, y, imageColor);
                    i++;
                }
            }

            return(img);
        }
Ejemplo n.º 5
0
        public static ElementRGB imageToElementRGB(Image img)
        {
            ElementRGB raw        = new ElementRGB();
            Bitmap     inputImage = new Bitmap(img);
            Color      pixelColor = new Color();

            raw.width  = inputImage.Width;
            raw.height = inputImage.Height;

            raw.Red   = new List <int>();
            raw.Green = new List <int>();
            raw.Blue  = new List <int>();

            for (int x = 0; x < inputImage.Width; x++)
            {
                for (int y = 0; y < inputImage.Height; y++)
                {
                    pixelColor = inputImage.GetPixel(x, y);

                    if (int.Parse(pixelColor.R.ToString()) != 0)
                    {
                        if (int.Parse(pixelColor.R.ToString()) == 255)
                        {
                            raw.Red.Add(int.Parse(pixelColor.R.ToString()) - 2);
                        }
                        else
                        {
                            raw.Red.Add(int.Parse(pixelColor.R.ToString()));
                        }
                    }
                    else
                    {
                        raw.Red.Add(2);
                    }

                    if (int.Parse(pixelColor.G.ToString()) != 0)
                    {
                        if (int.Parse(pixelColor.G.ToString()) == 255)
                        {
                            raw.Green.Add(int.Parse(pixelColor.G.ToString()) - 2);
                        }
                        else
                        {
                            raw.Green.Add(int.Parse(pixelColor.G.ToString()));
                        }
                    }
                    else
                    {
                        raw.Green.Add(2);
                    }

                    if (int.Parse(pixelColor.B.ToString()) != 0)
                    {
                        if (int.Parse(pixelColor.B.ToString()) == 255)
                        {
                            raw.Blue.Add(int.Parse(pixelColor.B.ToString()) - 2);
                        }
                        else
                        {
                            raw.Blue.Add(int.Parse(pixelColor.B.ToString()));
                        }
                    }
                    else
                    {
                        raw.Blue.Add(2);
                    }
                }
            }

            return(raw);
        }
Ejemplo n.º 6
0
        public static Image CreateStegoImage(ElementRGB rawData, byte[] secretData, Bitmap carrierImage)
        {
            Bitmap StegoImage = carrierImage;

            BitArray secretBits = Converter.ToBitArray(secretData);

            int[] numericBits = Converter.BinaryToNumeric(secretBits);
            int[] base3Data   = Converter.base2ToBase3(numericBits);

            //Operasi Steganography di sini

            temp = new int[base3Data.Length + 1];
            int[] embededData = new int[base3Data.Length + 1];
            for (int i = 0; i < base3Data.Length; i++)
            {
                embededData[i] = base3Data[i];
                temp[i]        = base3Data[i];
            }
            embededData[base3Data.Length] = 0;

            int index = 0;
            int ptr = 0;
            int f1, f2, f3;


            for (int x = 0; x < rawData.width; x++)
            {
                for (int y = 0; y < rawData.height; y++)
                {
                    if (ptr + 2 <= base3Data.Length)
                    {
                        //Manipulasi Pixel//////////

                        //MessageBox.Show(rawData.Red.ElementAt(index) + " " + rawData.Green.ElementAt(index) + " " + rawData.Blue.ElementAt(index));

                        f1 = rawData.Red.ElementAt(index) % 3;
                        f2 = rawData.Green.ElementAt(index) % 3;
                        f3 = rawData.Blue.ElementAt(index) % 3;


                        ///////////////////////////////////////////////////////////////////////////////
                        if (f1 == embededData.ElementAt(ptr))
                        {
                            rawData.Red[index] = rawData.Red.ElementAt(index);
                        }
                        else
                        {
                            rawData.Red[index] = rawData.Red.ElementAt(index) + embededData.ElementAt(ptr) - f1;
                        }
                        /////////////////////////////////////////////////////////////////////////////////
                        /////////////////////////////////////////////////////////////////////////////////
                        if (f2 == embededData.ElementAt(ptr + 1))
                        {
                            rawData.Green[index] = rawData.Green.ElementAt(index);
                        }
                        else
                        {
                            rawData.Green[index] = rawData.Green.ElementAt(index) + embededData.ElementAt(ptr + 1) - f2;
                        }
                        /////////////////////////////////////////////////////////////////////////////////
                        /////////////////////////////////////////////////////////////////////////////////
                        if (f3 == embededData.ElementAt(ptr + 2))
                        {
                            rawData.Blue[index] = rawData.Blue.ElementAt(index);
                        }
                        else
                        {
                            rawData.Blue[index] = rawData.Blue.ElementAt(index) + embededData.ElementAt(ptr + 2) - f3;
                        }
                        /////////////////////////////////////////////////////////////////////////////////

                        //MessageBox.Show(f1+" "+embededData.ElementAt(ptr)+" "+f2+" "+embededData.ElementAt(ptr+1)+" "+f3+" "+embededData.ElementAt(ptr+2)+"\n"+rawData.Red.ElementAt(index)+" "+rawData.Green.ElementAt(index)+" "+rawData.Blue.ElementAt(index));

                        ptr += 3;

                        ////////////////////////////

                        Color imageColor;
                        //if (rawData.Blue.ElementAt(index) != -1 && rawData.Red.ElementAt(index)!= -1 && rawData.Green.ElementAt(index)!=-1)
                        {
                            imageColor = Color.FromArgb(rawData.Red.ElementAt(index), rawData.Green.ElementAt(index), rawData.Blue.ElementAt(index));
                            StegoImage.SetPixel(x, y, imageColor);
                        }

                        index++;
                    }
                }
            }
            rawData.StegoLength = index;

            return(StegoImage);
        }