private static void Main(string[] args)
{
string plainText = "Attack at night with all forces";
string cipherText = "dwwdfn dw qljkw zlwk doo irufhv";
char[] cipher;
Console.WriteLine("Cipher text : ");
foreach (var item in cipherText)
{
Console.Write(item);
}
Console.WriteLine();
Console.WriteLine("Plain text : ");
//cipher = CaesarCipher.Encrypt(plainText, 3);
foreach (var item in CaesarCipher.Decrypt(cipherText, 3))
{
Console.Write(item);
}
Console.WriteLine();
}
static void Main(string[] args)
{
string continueResp = "yes";
string filepath;
while (continueResp.Equals("yes", StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("Select an operation:\n1)Encypt\n2)Decrypt\n3)Quit");
int op = Convert.ToInt32(Console.ReadLine());
switch (op)
{
case (int)Operations.Encrypt:
Console.WriteLine("Enter the filepath of the file: ");
filepath = Console.ReadLine();
try
{
if (File.Exists(filepath))
{
Console.WriteLine("Encrypting file...");
var msgToEncrypt = File.ReadAllText(filepath);
var encryptedMsg = CaesarCipher.Encrypt(msgToEncrypt);
var encryptedFile = filepath.Replace(".txt", "Encrypted.txt");
File.WriteAllText(encryptedFile, encryptedMsg);
Console.WriteLine(encryptedMsg);
}
else
{
Console.WriteLine("File does not exist. Try again");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
continue;
}
break;
case (int)Operations.Decrypt:
Console.WriteLine("Enter the filepath of the file: ");
filepath = Console.ReadLine();
try
{
if (File.Exists(filepath))
{
Console.WriteLine("Decrypting file...");
var msgToDecrypt = File.ReadAllText(filepath);
var decryptedMsg = CaesarCipher.Decrypt(msgToDecrypt);
var decryptedFile = filepath.Replace(".txt", "Decrypted.txt");
File.WriteAllText(decryptedFile, decryptedMsg);
Console.WriteLine(decryptedMsg);
}
else
{
Console.WriteLine("File does not exist. Try again");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
continue;
}
break;
case (int)Operations.Quit:
Environment.Exit(1);
break;
default:
Console.WriteLine("Invalid operation. Try again.\n");
continue;
}
Console.WriteLine("Continue operations (yes/no)?");
continueResp = Console.ReadLine();
}
}
