A location-updating based self-healing group key management scheme for VANETs

With the development of wireless network, smart devices, and vehicles, Vehicular Ad-hoc Networks (VANETs), a special application of the Internet of Things, have emerged as a prominent research focus. Communication within VANETs is typically group-based, necessitating a robust group key management scheme to secure communication in such an ad-hoc network. In this work, we take into consideration the fast movement feature of vehicles and propose a location-updating based group key management scheme that empowers vehicle nodes with self-healing function. We apply the location information into the key computation for the group key management scheme. Furthermore, we conduct comprehensive security and performance analyses, demonstrating the efficiency of our scheme and its scalability for large-scale VANETs. Lastly,, we discuss how to advance our proposed scheme to achieve greater capacity with some modifications.