NServiceBus.RijndaelEncryptionService.RijndaelEncryptionService C# (CSharp) Method

        public RijndaelEncryptionService(
            string encryptionKeyIdentifier,
            IDictionary<string, byte[]> keys,
            IList<byte[]> decryptionKeys
            )
        {
            this.encryptionKeyIdentifier = encryptionKeyIdentifier;
            this.decryptionKeys = decryptionKeys;
            this.keys = keys;

            if (string.IsNullOrEmpty(encryptionKeyIdentifier))
            {
                Log.Error("No encryption key identifier configured. Messages with encrypted properties will fail to send. Add an encryption key identifier to the rijndael encryption service configuration.");
            }
            else if (!keys.TryGetValue(encryptionKeyIdentifier, out encryptionKey))
            {
                throw new ArgumentException("No encryption key for given encryption key identifier.", nameof(encryptionKeyIdentifier));
            }
            else
            {
                VerifyEncryptionKey(encryptionKey);
            }

            VerifyExpiredKeys(decryptionKeys);
        }