Highly Efficient Anonymous IoT Authentication using Composite Hashing

Considering many Internet of Things (IoT) devices are resource-limited and their identities might disclose sensitive information, highly efficient and anonymous IoT authentication scheme is desirable for these IoT scenarios. In this paper, we propose a new anonymous IoT authentication scheme, using the composite hashing. The merits of this work are four-fold. (1) A new anonymous IoT authentication scheme is proposed; (2) the pre-calculation of pseudonym vectors can tackle Denial-of-Service attacks or unreliable connection issues; (3) the evaluations and analysis demonstrate its excellent performance in terms of computation, communication, and security properties; (4) an instantiation of applying this scheme on a standard IOT protocol like MQTT is described. Its excellent performances make it very attractive for those resource-limited IoT devices with anonymity requirement.