private void button1_Click(object sender, EventArgs e)
{
if (verify_pictureBox(pictureBox1))
{
String message, message1, message2, message3;
Bitmap bmp = (Bitmap)pictureBox1.Image;
Bitmap bmp_res;
_SteganographyHelper steg = new _SteganographyHelper();
int selector;
string sym_alg_sel;
string key_hex;
string IV_hex;
string chipertxt;
int size;
string xml;
string ciphertxt_rsa;
selector = Convert.ToInt32(steg.extractText(bmp, 0, 0)); //0 for symmetric algorithm 1 for rsa algorithm
if (selector == 0)
{
sym_alg_sel = steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop); // type of sym algorithm (DES,3DES,Rijndael)
key_hex = steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop); // Key of the alg
IV_hex = steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop); //IV of the alg
chipertxt = steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop); //CipherText
//MessageBox.Show(chipertxt);
//MessageBox.Show(key_hex);
//MessageBox.Show(IV_hex);
//MessageBox.Show(sym_alg_sel);
sym_algorithm_dec(sym_alg_sel, key_hex, IV_hex, chipertxt);
}
else
{
bmp_res = (Bitmap)pictureBox1.Image;
}
if (selector == 1)
{
size = Convert.ToInt32(steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop));
xml = steg.extractText(bmp, steg.dec_w_stop, steg.dec_h_stop);
ciphertxt_rsa = steg.extractText(bmp, steg.w_stop, steg.dec_h_stop);
}
}
}
private void button3_Click(object sender, EventArgs e)
{
if (verify_pictureBox(pictureBox1))
{
Bitmap bmp = (Bitmap)pictureBox1.Image;
Bitmap bmp_res;
_SteganographyHelper steg = new _SteganographyHelper();
if (Algorithm.selector == 0)
{
bmp_res = steg.embedText(Algorithm.selector.ToString(), bmp, 0, 0); //0 for symmetric algorithm 1 for rsa algorithm
bmp_res = steg.embedText(Algorithm.sym_alg_selector, bmp, steg.w_stop, steg.h_stop); // type of sym algorithm (DES,3DES,Rijndael)
bmp_res = steg.embedText(Algorithm.KeyHex, bmp, steg.w_stop, steg.h_stop); // Key of the alg
bmp_res = steg.embedText(Algorithm.IVHex, bmp, steg.w_stop, steg.h_stop); //IV of the alg
bmp_res = steg.embedText(Algorithm.sym_ciphertext, bmp, steg.w_stop, steg.h_stop); //CipherText
//MessageBox.Show(Algorithm.selector.ToString());
//MessageBox.Show(Algorithm.sym_ciphertext);
}
else
{
bmp_res = (Bitmap)pictureBox1.Image;
}
if (Algorithm.selector == 1)
{
bmp_res = steg.embedText(Algorithm.selector.ToString(), bmp, 0, 0); //0 for symmetric algorithm 1 for rsa algorithm
bmp_res = steg.embedText(Algorithm.size.ToString(), bmp, steg.w_stop, steg.h_stop); //size of bits
bmp_res = steg.embedText(Algorithm.rsa_xml, bmp, steg.w_stop, steg.h_stop); //rsa xml export
bmp_res = steg.embedText(Algorithm.rsa_ciphertext, bmp, steg.w_stop, steg.h_stop);
}
//
pictureBox2.Image = bmp_res;
button2.Enabled = true;
}
}
