Reauthentication scheme for mobile wireless sensor networks

Wireless sensor networks consist of static as well as mobile sensor nodes. Due to deployment of the sensor nodes, generally in an unattended and hostile environment, it becomes a critical issue as well as a cumbersome task to safeguard these nodes against various kinds of security attacks. The mobility of sensor nodes is a significant issue because these nodes continuously move from one region to another region and reconnect to other sensor nodes. Reauthentication and locating the node movement are the primary security issues in Mobile Wireless Sensor Networks (MWSNs). Many previous security algorithms available in the literature only consider the issues of static sensor nodes. In this paper, we propose an energy efficient mobile node authentication algorithm. For mobile node authentication, we design the reauthentication approach for mobile nodes and also design an authentication framework for securing MWSNs. The proposed protocol is compared with existing mobile node authentication protocols available in the literature. We observe that the proposed protocol provides low overhead while achieving the security requirements for mobile wireless sensor networks. (C) 2019 Elsevier Inc. All rights reserved.