A Scalable Group Authentication Scheme Based on Combinatorial Designs with Fault Tolerance for the Internet of Things

With the development of the Internet of Things, the scale of IoT system is becoming large. Due to the network congestion problems and the server capability, using unicast authentication will bring burden to the network link and server. In this paper, we propose a scalable group authentication scheme with fault tolerance based on combinatorial designs. Performance analysis of the proposed scheme is based on several metrics such as fault tolerance, scalability, energy consumption and storage overhead. Simulation results have shown that oval designs realize the best trade-off for all metrics.