public string RequestChallenge(UserAndKeyHintMessage message) { try { byte[] challengeBuffer = new byte[16]; // Generate Random nonce RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider(); rng.GetBytes(challengeBuffer); DAL.Instance.SetActiveChallenge(message.UserId, message.PublicKeyHint, challengeBuffer); return Convert.ToBase64String(challengeBuffer); } catch (Exception) { return string.Empty; } }
public bool RemoveRegisteredKey(UserAndKeyHintMessage message) { bool retval = false; try { retval = DAL.Instance.RemoveRegisteredKey(message.UserId, message.PublicKeyHint); } catch (Exception) { } return retval; }