public override void DisplayMenu()
{
StreamReader sr = null;
string file, line;
int counter = 0;
int key = 0;
Console.WriteLine("Welcome to decryption mode");
while (String.IsNullOrEmpty(Path))
{
Console.WriteLine("Enter path to file:");
Path = Console.ReadLine();
}
while (String.IsNullOrEmpty(FileName))
{
Console.WriteLine("Enter the file name:");
FileName = Console.ReadLine();
}
file = @Path + FileName;
Console.WriteLine(file);
try
{
sr = new StreamReader(file);
while ((line = sr.ReadLine()) != null)
{
key = int.Parse(line.Split('+')[0].ToString());
Decypher = CaesarCipher.Decrypt(line.Split('+')[1].ToString(), key);
Console.WriteLine($"The Cipher is: {Decypher}");
counter++;
}
}
catch (Exception)
{
Path = string.Empty;
FileName = string.Empty;
ExceptionHandler();
}
finally
{
if (sr != null)
{
sr.Close();
WriteToFile(Decypher, key);
Console.ReadLine();
}
}
}
private void encryptBtn_Click(object sender, EventArgs e)
{
var shift = 0;
if (!string.IsNullOrWhiteSpace(textToEncrypt.Text) && int.TryParse(charShift.Text, out shift))
{
if (decryptRB.Checked)
{
shift = shift * -1;
}
cipher.Text = CaesarCipher.Encrypt(textToEncrypt.Text, shift);
}
else
{
textToEncrypt.Text = "INVALID FORM DATA";
}
}
public override void DisplayMenu()
{
int keyMenu = 0;
bool success = false;
string cipherString;
Console.WriteLine("Welcome to encryption mode");
while (String.IsNullOrEmpty(Message))
{
Console.WriteLine("Enter message to encrypt:");
Message = Console.ReadLine();
if (String.IsNullOrEmpty(Message))
{
ErrorMessage();
}
}
while (!success)
{
Console.WriteLine("Enter the key:");
success = int.TryParse(Console.ReadLine(), out keyMenu);
if (!success)
{
ErrorMessage();
}
}
Key = keyMenu;
Cipher = CaesarCipher.Encrypt(Message, Key);
Console.WriteLine("The Cipher is: ");
Console.WriteLine(Cipher);
cipherString = new String(Cipher);
WriteToFile(cipherString, Key);
Console.WriteLine("Press any key to continue");
Console.ReadLine();
}