private void btnExtract_Click(object sender, EventArgs e)
{
Bitmap bmp = new Bitmap(picStegImage.Image);
string extractedText = HideandExtract.extractText(bmp);
try
{
extractedText = crypto.DecryptStringAES(extractedText, txtExtractPassword.Text);
}
catch
{
MessageBox.Show("Wrong password", "Error");
return;
}
txtextractedText.Text = extractedText;
//System.IO.MemoryStream ms1 = new System.IO.MemoryStream(cipherbytes);
//CryptoStream cs1 = new CryptoStream(ms1, desobj.CreateDecryptor(), CryptoStreamMode.Read);
//cs1.Read(cipherbytes, 0, cipherbytes.Length);
//plainbytes2 = ms1.ToArray();
//cs1.Close();
//ms1.Close();
//txtextractedText.Text = Encoding.ASCII.GetString(plainbytes2);
}
private void btnEncode_Click_1(object sender, EventArgs e)
{
img = new Bitmap(txtFilePath.Text);
string text = "";
if (txtPlaintext.Text == "")
{
MessageBox.Show("Please enter a text.");
}
if (txtPassword.Text.Length < 6)
{
MessageBox.Show("Password is too Short.");
txtPassword.Text = "";
txtPassword.Focus();
}
else
{
text = crypto.EncryptStringAES(txtPlaintext.Text, txtPassword.Text);
//Program.Password = txtPassword.Text;
//cipherData = txtPlaintext.Text;
//plainbytes = Encoding.ASCII.GetBytes(cipherData);
//plainkey = Encoding.ASCII.GetBytes("0123456789abcdef");
//desobj.Key = plainkey;
//desobj.Mode = CipherMode.CBC;
//desobj.Padding = PaddingMode.PKCS7;
//System.IO.MemoryStream ms = new System.IO.MemoryStream();
//CryptoStream cs = new CryptoStream(ms, desobj.CreateEncryptor(), CryptoStreamMode.Write);
//cs.Write(plainbytes, 0, plainbytes.Length);
//cs.Close();
//cipherbytes = ms.ToArray();
//ms.Close();
//text = (Encoding.ASCII.GetString(cipherbytes));
txtEcncrypttext.Text = text;
img = HideandExtract.embedText(text, img);
MessageBox.Show("Message has been embedded.");
MessageBox.Show("Please save and continue.");
}
//for (int i = 0; i < img.Width; i++)
//{
// for (int j = 0; j < img.Height; j++)
// {
// Color pixel = img.GetPixel(i, j);
// if (i < 1 && j < txtPlaintext.TextLength * 7)
// {
/* Console.WriteLine("R=[" + i + "][" + j + "]=" + pixel.R);
* Console.WriteLine("G=[" + i + "][" + j + "]=" + pixel.G);
* Console.WriteLine("B=[" + i + "][" + j + "]=" + pixel.B);
*
* char[] PictureR = ConvertIntegerToBinary(pixel.R).ToCharArray();
* char[] PictureG = ConvertIntegerToBinary(pixel.G).ToCharArray();
* char[] PictureB = ConvertIntegerToBinary(pixel.B).ToCharArray();
*
* foreach (var item in PictureR)
* {
* Console.WriteLine("RBinary:" + item);
* }
* foreach (var item in PictureG)
* {
* Console.WriteLine("GBinary:" + item);
* }
* foreach (var item in PictureB)
* {
* Console.WriteLine("BBinary:" + item);
* }
*
*
*
* char Letter = Convert.ToChar(txtPlaintext.Text.Substring(j, 1));
*
*
*
* int Value = Convert.ToInt32(Letter);
* Console.WriteLine("Letter:" + Letter + "Value:" + Value);
*
* Console.WriteLine(ConvertIntegerToBinary(Value));
* char[] text = ConvertIntegerToBinary(Value).ToCharArray();
* foreach (var item in text)
* {
* Console.WriteLine(item);
* }*/
// }
// }
//}
}
