Assessment of Message Queue Telemetry and Transport (MQTT) protocol with Symmetric Encryption

Internet of Things - IoT is a data communication network used to share information between two devices. IoT is considered as a layered system with different protocols used to communicate information than the traditional internet. Message Queue Telemetry and Transport (MQTT) is one of the most common application layer protocols used for sharing information in IoT applications. MQTT protocol does not have any inbuilt mechanism to secure the information that is communicated between the two devices. MQTT protocol depends on lower layers for the security of information that is communicated. Our research aims at improving the security feature of MQTT protocol. Some experimental part of our research is been presented in this paper to measure the performance of MQTT protocol with standard encryption algorithms.