public CipherForm()
{
InitializeComponent();
caesarCipher = new CaesarCipher();
trithemiusCipher = new TrithemiusCipher();
xorEncryptionCipher = new XOREncryptionCipher();
bookCipher = new BookCipher();
theKnapsackProblemCipher = new TheKnapsackProblemCipher();
}
void Cipher_Click(object sender, RoutedEventArgs e)
{
if (Message.Foreground == Brushes.Gray || string.IsNullOrWhiteSpace(Message.Text))
{
MessageBoxError("Message can`t be empty!");
GetAllDefault(key: false);
}
else if (Key.Foreground == Brushes.Gray || string.IsNullOrWhiteSpace(Key.Text))
{
MessageBoxError("Key can`t be empty!");
GetAllDefault(message: false);
}
else
{
if (ComboBox.SelectedIndex == 0)
{
bool isNumber = int.TryParse(Key.Text, out int KeyNumber);
if (isNumber)
{
Result.Foreground = Brushes.Black;
if (KeyNumber >= 0 && KeyNumber <= 26)
{
Result.Text = (bool)CheckBoxDecrypt.IsChecked ? CaesarCipher.Decrypt(Message.Text, KeyNumber) : CaesarCipher.Encrypt(Message.Text, KeyNumber);
}
else
{
MessageBoxError("Rotation can`t be longer than 26 or shorter than 0!");
GetAllDefault(message: false);
}
}
else
{
MessageBoxError("Key must be number!");
GetAllDefault(message: false);
}
}
else
{
if (Key.Text.Any(x => char.IsWhiteSpace(x) || char.IsNumber(x)))
{
MessageBoxError("Key should not contain spaces or numbers!");
GetAllDefault(message: false);
}
else
{
Result.Foreground = Brushes.Black;
Result.Text = (bool)CheckBoxDecrypt.IsChecked ? VigenereCipher.Decrypt(Message.Text, Key.Text) : VigenereCipher.Encrypt(Message.Text, Key.Text);
}
}
}
}
private void tryXOREncryptDecrypt(Operation op)
{
string textToEncrypt = textBox1.Text;
if (CaesarCipher.CheckInput(textToEncrypt, out MatchCollection matches))
{
textBox1.BackColor = Color.White;
CaesarPswForm showPsw = new CaesarPswForm();
if (DialogResult.Cancel == showPsw.ShowDialog(this))
{
return;
}
textBox1.Text = xorEncryptionCipher.XOR(matches[0].Value,
Int32.Parse(showPsw.key), op);
}
else
{
textBox1.BackColor = Color.LightGoldenrodYellow;
MessageBox.Show("Text contain illegal character!", "Warning!", MessageBoxButtons.OK, MessageBoxIcon.Warning);
textBox1.BackColor = Color.White;
}
}
private void tryThrithemiusEncryptDecrypt(Operation op)
{
string textToEncrypt = textBox1.Text;
if (CaesarCipher.CheckInput(textToEncrypt, out MatchCollection matches))
{
textBox1.BackColor = Color.White;
TrithemiusPswForm showPsw = new TrithemiusPswForm();
do
{
if (DialogResult.Cancel == showPsw.ShowDialog(this))
{
return;
}
} while(showPsw.retry);
textBox1.Text = trithemiusCipher.Trithemius(matches[0].Value, op, showPsw.TrithemiusKeyArgs);
}
else
{
textBox1.BackColor = Color.LightGoldenrodYellow;
MessageBox.Show("Text contain illegal character!", "Warning!", MessageBoxButtons.OK, MessageBoxIcon.Warning);
textBox1.BackColor = Color.White;
}
}
