private static void ShowCaesarEncryption()
{
Console.WriteLine("--*-- Caesar Cipher example --*--");
Console.WriteLine("Type a string to encrypt (or hit Enter to continue with default): ");
string inputText = Console.ReadLine();
if (inputText == "")
{
inputText = plainText;
}
Console.WriteLine("Enter the key value (numberic)");
string key = Console.ReadLine();
int intKey = 0;
if (!Int32.TryParse(key, out intKey))
{
intKey = -1;
}
Console.WriteLine("Encrypted text input with Caesar Cipher by {0} spaces:", intKey);
string cipherText = CaesarCipher.Encipher(inputText, intKey);
Console.WriteLine(cipherText);
Console.Write("\n");
Console.WriteLine("Decrypted Data:");
string t = CaesarCipher.Decipher(cipherText, intKey);
Console.WriteLine(t);
}
public ActionResult Index()
{
string password = "******";
int key = Convert.ToInt32(-2);
string cipherText = CaesarCipher.Encipher(password, key);
string t = CaesarCipher.Decipher(cipherText, key);
string burak = "";
return(View());
}
private void decipherButton_Click(object sender, EventArgs e)
{
// This text is added only once to the file.
if (!File.Exists(cipherTextPath))
{
return;
}
string cipherText = File.ReadAllText(cipherTextPath);
string vigenereKey = vigenereKeyTextBox.Text;
if (!cipherText.All(c => Char.IsLetterOrDigit(c) || c == ' '))
{
MessageBox.Show("The text must contains only alphanumeric characters in order to be encrypted!",
"Invalid input!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (!vigenereKey.All(c => Char.IsLetterOrDigit(c) || c == ' '))
{
MessageBox.Show("The key must contains only alphanumeric characters in order to be encrypted!",
"Invalid key!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
var vigenereDecryptionText = VigenereCipher.Decipher(cipherText, vigenereKey);
vigenereCipherRichTextBox.Text = vigenereDecryptionText;
int caesarKey = Convert.ToInt32(caesarKeyNumericUpDown.Value);
var plainText = CaesarCipher.Decipher(vigenereDecryptionText, caesarKey);
plainTextRichTextBox.Text = plainText;
File.WriteAllText(plainTextPath, plainText);
}
public void CaesarDecipherTest(string expected, string ciphered, int rot, bool squash = false)
{
Assert.AreEqual(expected, CaesarCipher.Decipher(ciphered, rot, squash));
}