Blockchain-assisted Cross-Domain Authentication and Access Control for Low-altitude UAV

Abstract

With the development of unmanned aerial vehicles (UAVs) technology and the expansion of UAV application scenarios, the demand for communication and airspace resources is increasing explosively. Traditional UAV authentication and access control schemes cannot meet the requirements of seamless access, and face security and efficiency challenges. Considering the mobility of UAVs, cross-domain authentication operations are repeatedly performed, resulting in low efficiency. Centralized authentication scheme faces the risk of single point of failure. In addition, relying solely on cryptography methods cannot meet regulatory requirements. To solve the above challenges, we present a blockchain-assisted UAV authentication and access control scheme, where regulatory authority (RA) and service provider (SP) collaborate on-chain to conduct UAV management efficiently and securely. Specifically, Automatic Dependent Surveillance Broadcast (ADS-B) is introduced to help regulation in our scheme. Access point (AP) completes the UAV access based on ADS-B signals and on-chain information, which makes the access process reliable and secure. We demonstrate the feasibility and efficiency of our scheme through extensive experiments.