A Review of Authentication Methods in Internet of Drones

Unmanned aerial vehicles (UAV), also known as drones, are wireless communication devices that have flexibility, mobility, and efficiency as their core attributes. These features enable UAV to play vital roles in various application scenarios, such as traffic prediction, emergency rescue, military reconnaissance, etc. Therefore, UAV have attracted considerable attention in the rapidly developing wireless communication technology. Internet of Drones(IoD) is an internet formed by a large number of UAV. To ensure the security and legitimacy of IoD, authentication of UAV nodes is required. However, the dynamic change of IoD topology and the frequent authentication may cause instability of inter-node communication. Therefore, designing efficient and lightweight authentication solutions has significant meaning. In this paper, we review the latest research on UAV authentication mechanisms. We also discuss the application of traditional techniques and the development of emerging technologies. Finally, we provide a further outlook on the development direction of the authentication research in IoD.