MQTTS broker

The next important piece in our reference framework is the secure communication channel between the device and the cloud. We are going to use MQTT as our communication channel. MQTT is described in the following quote from http://mqtt.org/faq:

MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely simple and lightweight messaging protocol, designed for constrained devices and low-bandwidth, high-latency or unreliable networks. The design principles are to minimise network bandwidth and device resource requirements whilst also attempting to ensure reliability and some degree of assurance of delivery.

We are going to use the MQTT over SSL or MQTTS. In our architecture, we are going to use Mosca (http://www.mosca.io/) as our MQTTS broker. Mosca is a Node.js MQTT broker. We will talk more about Mosca when we start working with it.