LAUSR

Internet of Things (IoT) is known as a hot topic in current decade. As a widely accepted IoT technology, wireless sensor network (WSN) is employed in fire alarming, agriculture, etc. However, how to devise a secure authentication scheme for WSNs is an open issue. In recent several years, authentication schemes about WSN with multi-gateway architecture have turned up. Unfortunately, security weaknesses may happen in historical schemes. Rather than simply improve the old schemes, we present a lightweight authentication scheme for multi-gateway WSNs in this paper. Based on the place of aim sensor, the process is divided into two cases: visiting sensor in and out of the scope of gateway. After the proof with ProVerif and analysis of the security properties, we deem that our scheme is away from usual attacks. Furthermore, the presented scheme is better than other recent schemes by performance comparison and it is practical by simulation study via the famous tool NS-3.