public string ExecVigenereCipher(Mode mode, CipherVigenereDto dto)
{
int d = mode == Mode.Encrypt ? 1 : -1;
int pwi = 0, tmp;
var ns = "";
dto.Input = dto.Input.ToUpper();
dto.Key = dto.Key.ToUpper();
foreach (char t in dto.Input)
{
if (t < 65)
{
continue;
}
tmp = t - 65 + d * (dto.Key[pwi] - 65);
if (tmp < 0)
{
tmp += 26;
}
ns += Convert.ToChar(65 + tmp % 26);
if (++pwi == dto.Key.Length)
{
pwi = 0;
}
}
return(ns);
}
public void CheckIfVigenereCipherWorksCorrectly(string input, string key, string encryptedInput, Mode mode)
{
var service = new CipherService();
var dto = new CipherVigenereDto
{
Input = input,
Key = key
};
string actual = service.ExecVigenereCipher(mode, dto);
Assert.AreEqual(encryptedInput, actual);
}
public async Task <IActionResult> GetVigenereCipherDecode([FromQuery] CipherVigenereDto dto)
{
string result = _cipherService.ExecVigenereCipher(Mode.Decrypt, dto);
return(Ok(result));
}
