Modeling and Verification of IEEE 802.11i Security Protocol in UPPAAL for Internet of Things

IEEE 802.11i is the IEEE standard that provides enhanced MAC security and has been widely used in wireless networks and Internet of Things. It improves IEEE 802.11 (1999) by providing a Robust Security Network (RSN) with two new protocols: the Four-Way Handshake and the Group Key Handshake. These protocols utilize the authentication services and port access control described in IEEE 802.1X to establish and change the appropriate cryptographic keys. In this paper, we carry out a formal modeling and verification approach based on timed automata for IEEE 802.11i protocol, using the UPPAAL model checker, to check correctness of the changes in IEEE 802.11i protocol and provide better security.