public IActionResult CaesarVisualization([FromBody] CaesarCipherViewModel viewModel)
{
CaesarCipher cipher = new CaesarCipher(viewModel.Key)
{
Alphabet = Alphabets.GetAlphabet((Alphabets.AlphabetType)viewModel.AlphabetType)
};
cipher.Alphabet = Alphabets.GetAlphabet((Alphabets.AlphabetType)viewModel.AlphabetType);
string[] results = new string[4] {
"alphabet", "newalphabet", "output", "input"
};
string encrypted = "";
string input = viewModel.Message;
input = StringHelper.ReplaceWhitespace(input, "");
input = input.ToUpper();
int alphabetLength = cipher.Alphabet.Length;
int newKey = (viewModel.Key) % alphabetLength;
string cipherAlphabet = "";
for (int i = 0; i < alphabetLength; i++)
{
if ((i + newKey) >= alphabetLength)
{
cipherAlphabet += cipher.Alphabet[i + newKey - alphabetLength];
}
else
{
cipherAlphabet += cipher.Alphabet[i + newKey];
}
}
results[0] = cipher.Alphabet;
results[1] = cipherAlphabet;
results[3] = input;
try
{
encrypted = cipher.Encrypt(viewModel.Message);
results[2] = encrypted;
}
catch (NullReferenceException)
{
}
catch (Exception)
{
return(BadRequest(new { Result = false, Message = Text.InvalidCharacter }));
}
return(Json(results));
}
public IActionResult CaesarDecrypt([FromBody] CaesarCipherViewModel viewModel)
{
CaesarCipher cipher = new CaesarCipher(viewModel.Key)
{
Alphabet = Alphabets.GetAlphabet((Alphabets.AlphabetType)viewModel.AlphabetType)
};
string decrypted = "";
try
{
decrypted = cipher.Decrypt(viewModel.Message);
}
catch (Exception)
{
return(BadRequest(new { Result = false, Message = Text.InvalidCharacter }));
}
return(Json(decrypted));
}