private static void PerformEncryptOperation(out string plainText, out string cipherText, out int shift)
{
AppMessage("Welcome to encryption mode \nEnter message to encrypt");
plainText = Console.ReadLine();
shift = 0; cipherText = string.Empty;
if (plainText != "")
{
try
{
AppMessage("Enter the shift");
shift = int.Parse(Console.ReadLine());
if (shift <= 26 && shift > 0)
{
AppMessage("Cipher is");
cipherText = new string(CaesarCipher.Encrypt(plainText, shift));
Console.WriteLine(cipherText);
}
else
{
ErrorMessage("Enter a number between 1 to 26");
}
}
catch (Exception e)
{
ErrorMessage(e.Message);
}
}
else
{
ErrorMessage("Invalid input");
}
}
