static void Vigenere(bool isEncrypt = true)
{
Console.WriteLine("Vigenere");
var userInput = "";
var key = "";
do
{
Console.Write("Enter the Key (or X to cancel):");
userInput = Console.ReadLine()?.ToLower().Trim();
if (userInput != "x")
{
if (!String.IsNullOrEmpty(userInput))
{
key = userInput;
}
else
{
Console.WriteLine("Enter a Valid Key");
}
}
} while (String.IsNullOrEmpty(userInput) && userInput != "x");
if (userInput == "x")
{
return;
}
if (!isEncrypt)
{
Console.Write(" You Cipher_Text Please:");
var plainText = Console.ReadLine();
if (plainText != null)
{
if (!Input.ValidateBase64(plainText))
{
Console.WriteLine("Cipher is ONLY base64");
}
else
{
CipherJob.Decipher(plainText, key);
}
}
else
{
Console.WriteLine("CipherText is Invalid!");
}
}
else
{
Console.Write("Your Plain_Text please:");
var plainText = Console.ReadLine();
if (plainText != null)
{
CipherJob.Encipher(plainText, key);
}
else
{
Console.WriteLine("Plaintext is Invalid!");
}
}
}
static void Cesar(bool isEncrypt = true)
{
Console.WriteLine("Cesar Cipher");
// byte per character
// 0-255
// 0-127 - latin
// 128-255 - change what you want
// ABCD - A 189, B - 195, C 196, D 202
// unicode
// AÄÖÜLA❌
var userInput = "";
var key = 0;
do
{
Console.Write("Shift amount please (or X to cancel):");
userInput = Console.ReadLine()?.ToLower().Trim();
if (userInput != "x")
{
if (int.TryParse(userInput, out var userValue))
{
key = userValue % 255;
if (key == 0)
{
Console.WriteLine("not a cipher option, nothing will change!");
}
else
{
Console.WriteLine($"Cesar key is: {key}");
}
}
}
} while (key == 0 && userInput != "x");
if (userInput == "x")
{
return;
}
if (!isEncrypt)
{
Console.Write("Cipher_Text please:");
var plainText = Console.ReadLine();
if (plainText != null)
{
if (!Input.ValidateBase64(plainText))
{
Console.WriteLine("Cipher is ONLY base64");
}
else
{
CipherJob.Decipher(plainText, $"{(char)key}");
}
}
else
{
Console.WriteLine("Cipher_Text is Invalid!");
}
}
else
{
Console.Write("Enter The Cipher_Text:");
var plainText = Console.ReadLine();
if (plainText != null)
{
CipherJob.Encipher(plainText, $"{(char)key}");
}
else
{
Console.WriteLine("Plain_text is Invalid!");
}
}
}