public void BigBytesData(int length)
        {
            NetMQMessage plainMessage = new NetMQMessage();

            plainMessage.Append(new byte[length]);
            new Random().NextBytes(plainMessage[0].Buffer);
            byte[] data = m_serverSecureChannel.EncryptApplicationBytes(plainMessage[0].Buffer);
            List <NetMQMessage> sslMessages = new List <NetMQMessage>();


            int o = 0;

            bool result = m_clientSecureChannel.ResolveRecordLayer(data, out o, out sslMessages);

            List <NetMQMessage> plainMessages = new List <NetMQMessage>();

            foreach (var netmq in sslMessages)
            {
                //大包合并包
                plainMessages.Add(m_clientSecureChannel.DecryptApplicationMessage(netmq));
            }
            Assert.AreEqual(plainMessage.Sum(p => p.BufferSize), plainMessages.Sum(f => f.Sum(p => p.BufferSize)));
            byte[] encryptBytes = new byte[plainMessages.Sum(e => e.Sum(f => f.BufferSize))];
            int    offset       = 0;

            foreach (var p in plainMessages)
            {
                foreach (var frame in p)
                {
                    Buffer.BlockCopy(frame.Buffer, 0, encryptBytes, offset, frame.BufferSize);
                    offset += frame.BufferSize;
                }
            }
            Assert.AreEqual(plainMessage[0].Buffer, encryptBytes);
        }