Abstract: Internet of Things (IoT) connected devices will be reaching people seamlessly in future days. With the passage of time in the context of IoT, many protocols have been devised for secured transmission, including XMPP, CoAP AMQP, ZigBee, 6LoWPAN, LWM2M etc. In Addition to above, The Message Queue Telemetry Transport (MQTT) is extensively used protocols in most IoT based communication network. The security aspects for the IoT domain is an open field of research and analysis. Since, MQTT standard has no mandatory requirements regarding the security services; therefore, manipulating the security issues in MQTT platforms seems very easy. This paper looks to evaluate the proposed security enhanced IoT protocols with the security analysis with a focus to MQTT protocol. Basing on test result and analysis, a Secured Message Queue Telemetry Transport (SMQTT) protocol is proposed..........
Keywords: IoT, MQTT, SMQTT, 6LoPAN, CoAP, ZigBee, Authentication, Encryption, Cryptography, ProVerif
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