public async Task <User> GetUser(string _username, string _password)
{
User user = await _userRepository.GetUserByUsername(_username);
if (user == null)
{
return(null);
}
byte[] salt = Convert.FromBase64String(user.Salt);
bool equal = _cryptographyService.AreEqual(_password, user.Password, salt);
if (equal)
{
return(user);
}
return(null);
}