Amazon.SimpleNotificationService.Util.Message.GetMessageBytesToSign C# (CSharp) Method

        private byte[] GetMessageBytesToSign()
        {
            string stringToSign = null;

            if (this.IsNotificationType)
                stringToSign = BuildNotificationStringToSign();
            else if (this.IsSubscriptionType || this.IsUnsubscriptionType)
                stringToSign = BuildSubscriptionStringToSign();
            else
                throw new AmazonClientException("Unknown message type: " + this.Type);

            byte[] bytesToSign = UTF8Encoding.UTF8.GetBytes(stringToSign);
            return bytesToSign;
        }