private void RefreshRequiredSize() { Trithemius t = new Trithemius(null); t.LeastSignificantBits = (int)bitsNumericUpDown.Value; try { byte[] msg; if (textRadioButton.Checked) { if (message == null) return; msg = Encoding.UTF8.GetBytes(message); } else { if (string.IsNullOrEmpty(msgOpenDialog.FileName)) return; msg = File.ReadAllBytes(msgOpenDialog.FileName); } if (!string.IsNullOrEmpty(passwordBox.Text)) msg = AESThenHMAC.SimpleEncryptWithPassword(msg, passwordBox.Text); int msgSize = t.GetRequiredSize(msg); requiredSizeBox.Text = SizeToString(msgSize); if (msgSize > maxSize) { requiredSizeLabel.ForeColor = Color.Red; } else { requiredSizeLabel.ForeColor = Color.Black; } } catch (FileNotFoundException ex) { ShowError(ex); } finally { t.Dispose(); } }
private Trithemius MakeTrithemius() { Trithemius t = new Trithemius(OpenBitmap(pathTextbox.Text)); t.Color = (PixelColor)(pixelValueComboBox.SelectedIndex + 1); t.InvertBits = invertBox.Checked; if (!string.IsNullOrEmpty(seedBox.Text)) { t.Seed = new TrithemiusSeed(seedBox.Text); } t.LeastSignificantBits = (int)bitsNumericUpDown.Value; return t; }