Security Approach on MQTT based Smart Home

Smart home technology is the concept of integrating Information and Communication Technology (ICT) into home appliances, which facilitates the simple tasks to be automated and controlled remotely, thus improves the quality of life of smart home inhabitants. In this paper we propose to implement the security among M2M smart home objects over 6LoWPAN networks, with the help of an enhanced mutual authentication and key establishment scheme. In the enhanced mutual authentication, a hybrid cryptography is used for secure authentication and suitable key establishment, for 6LoWPAN resource constrained devices. A handover ticket is generated for secure authentication, when there is mobility among nodes. In addition to it, we propose to use a communication protocol, MQTT (Message Queueing Telemetry Transport), which is a light weight, publish subscribe based protocol and more compatible with resource constrained devices like smart home objects in 6LoWPAN networks and gives better results in M2M communication.