private void EncryptButton_Click(object sender, RoutedEventArgs e)
{
string plainText = InputBox.Text;
string rawKey = KeyBox.Text;
string cipherText = "";
switch ((Cryptoanalyzer.EncryptionMethods)EncryptionMethodBox.SelectedIndex)
{
case Cryptoanalyzer.EncryptionMethods.Shift:
cipherText = Cryptoanalyzer.EncryptShiftCipher(plainText, int.Parse(rawKey));
break;
case Cryptoanalyzer.EncryptionMethods.OneTimePad:
cipherText = Cryptoanalyzer.EncryptOneTimePad(plainText, rawKey);
break;
case Cryptoanalyzer.EncryptionMethods.Affine:
string[] keys = rawKey.Split(',', ';', ':', ' ');
cipherText = Cryptoanalyzer.EncryptAffineCipher(plainText,
int.Parse(keys[0]), int.Parse(keys[1]));
break;
case Cryptoanalyzer.EncryptionMethods.Polynomial:
var polynomials = PolynomialCipher.EncodeMessage(InputBox.Text, int.Parse(rawKey));
cipherText = string.Join("\r\n", polynomials);
break;
case Cryptoanalyzer.EncryptionMethods.Multiplicative:
cipherText = Cryptoanalyzer.EncryptMultiplicativeCipher(plainText, int.Parse(rawKey));
break;
case Cryptoanalyzer.EncryptionMethods.PolynomialBlock:
cipherText = Cryptoanalyzer.EncryptPolynomialBlockCipher(InputBox.Text, int.Parse(rawKey));
break;
case Cryptoanalyzer.EncryptionMethods.Bifid:
cipherText = Cryptoanalyzer.EncryptBifidCipher(plainText, rawKey);
break;
case Cryptoanalyzer.EncryptionMethods.Atbash:
cipherText = Cryptoanalyzer.DecryptAtbashCipher(plainText);
break;
case Cryptoanalyzer.EncryptionMethods.MorseCode:
string[] morseCodeChars = rawKey.Split(',', ';', ':', ' ');
cipherText = morseCodeChars.Length <= 3
? Cryptoanalyzer.EncryptMorseCode(plainText)
: Cryptoanalyzer.EncryptMorseCode(plainText, morseCodeChars[0], morseCodeChars[1], morseCodeChars[2]);
break;
case Cryptoanalyzer.EncryptionMethods.Ascii:
cipherText = Cryptoanalyzer.EncryptAsciiEncoding(plainText, int.Parse(rawKey));
break;
case Cryptoanalyzer.EncryptionMethods.Vigenere:
cipherText = Cryptoanalyzer.EncryptVigenereCipher(plainText, rawKey);
break;
}
OutputBox.Text = cipherText;
}
private void UpdateCipherText(bool decrypt)
{
if (!IsLoaded)
{
return;
}
PolynomialOutputBox.Text = "";
if (decrypt)
{
// Parse the polynomials and decode them
List <List <double> > coeffs = new List <List <double> >();
string[] inputPolynomials = InputBox.Text.Split('\r', '\n', StringSplitOptions.RemoveEmptyEntries);
foreach (string inputPoly in inputPolynomials)
{
List <double> polyCoeffs = new List <double>();
foreach (string inputCoeff in inputPoly.Split(' ', StringSplitOptions.RemoveEmptyEntries))
{
polyCoeffs.Add(Double.Parse(inputCoeff));
}
polyCoeffs.Reverse();
// Send the coefficients to be decoded
PolynomialOutputBox.Text += PolynomialCipher.DecodePolynomial(polyCoeffs, (int)KeyBox.Value) + "\r\n";
}
}
else
{
var polynomials = PolynomialCipher.EncodeMessage(InputBox.Text, (int)KeyBox.Value);
foreach (string output in polynomials)
{
PolynomialOutputBox.Text += output + "\r\n";
}
}
return;
// Don't do this:
// Generate one gigantic polynomial for the entire message
Debug.WriteLine("Encryption started: " + DateTime.Now);
PolynomialOutputBox.Text +=
PolynomialCipher.CoeffsToPolynomial(PolynomialCipher.EncryptString(InputBox.Text, 1));
Debug.WriteLine("Encryption Finished: " + DateTime.Now);
}
private async void DecryptButton_Click(object sender, RoutedEventArgs e)
{
string cipherText = InputBox.Text;
string rawKey = KeyBox.Text;
string plainText = "";
List <List <double> > coeffs;
string[] inputPolynomials;
switch ((Cryptoanalyzer.EncryptionMethods)EncryptionMethodBox.SelectedIndex)
{
#region Shift
case Cryptoanalyzer.EncryptionMethods.Shift:
plainText = Cryptoanalyzer.DecryptShiftCipher(cipherText, int.Parse(rawKey));
break;
#endregion
#region OTP
case Cryptoanalyzer.EncryptionMethods.OneTimePad:
plainText = Cryptoanalyzer.DecryptOneTimePad(cipherText, rawKey);
break;
#endregion
#region Affine
case Cryptoanalyzer.EncryptionMethods.Affine:
string[] keys = rawKey.Split(',', ';', ':', ' ');
try
{
plainText = Cryptoanalyzer.DecryptAffineCipher(cipherText,
int.Parse(keys[0]), int.Parse(keys[1]));
}
catch (ArgumentException ex)
{
await new ContentDialog()
{
Content = "Failed to decrypt message, check key: " + ex.Message,
Title = "Error",
PrimaryButtonText = "OK"
}.ShowAsync();
}
break;
#endregion
#region Polynomial
case Cryptoanalyzer.EncryptionMethods.Polynomial:
// Parse the polynomials and decode them
coeffs = new List <List <double> >();
inputPolynomials = InputBox.Text.Split('\r', '\n', StringSplitOptions.RemoveEmptyEntries);
foreach (string inputPoly in inputPolynomials)
{
List <double> polyCoeffs = new List <double>();
foreach (string inputCoeff in inputPoly.Split(' ', StringSplitOptions.RemoveEmptyEntries))
{
polyCoeffs.Add(double.Parse(inputCoeff));
}
polyCoeffs.Reverse();
// Send the coefficients to be decoded
plainText += PolynomialCipher.DecodePolynomial(polyCoeffs, int.Parse(rawKey)) + "\r\n";
}
break;
#endregion
#region Multiplicative
case Cryptoanalyzer.EncryptionMethods.Multiplicative:
plainText = Cryptoanalyzer.DecryptMultiplicativeCipher(cipherText, int.Parse(rawKey));
break;
#endregion
#region Atbash
case Cryptoanalyzer.EncryptionMethods.Atbash:
plainText = Cryptoanalyzer.DecryptAtbashCipher(cipherText);
break;
#endregion
#region Morse Code
case Cryptoanalyzer.EncryptionMethods.MorseCode:
string[] morseCodeChars = rawKey.Split(',', ';', ':', ' ');
plainText = morseCodeChars.Length != 2
? Cryptoanalyzer.DecryptMorseCode(cipherText)
: Cryptoanalyzer.DecryptMorseCode(cipherText, morseCodeChars[0], morseCodeChars[1], morseCodeChars[2]);
break;
#endregion
#region Polynomial Block
case Cryptoanalyzer.EncryptionMethods.PolynomialBlock:
// Parse the polynomials and decode them
string[] blockInputPolynomials = InputBox.Text.Split('\r', '\n', StringSplitOptions.RemoveEmptyEntries);
List <List <double> > blockCoeffs = blockInputPolynomials.Select(PolynomialCipher.ParsePolynomial).ToList();
plainText = Cryptoanalyzer.DecryptPolynomialBlockCipher(blockCoeffs, int.Parse(rawKey));
break;
#endregion
#region ASCII Encoding
case Cryptoanalyzer.EncryptionMethods.Ascii:
plainText = Cryptoanalyzer.DecryptAsciiEncoding(cipherText, int.Parse(rawKey));
break;
#endregion
#region Vigenere
case Cryptoanalyzer.EncryptionMethods.Vigenere:
plainText = Cryptoanalyzer.DecryptVigenereCipher(cipherText, rawKey);
break;
#endregion
}
OutputBox.Text = plainText;
}
