基于区域划分的无人机通信物理层组密钥分发OA

Physical layer group secret key distribution is a promising and effective method for ensuring the security of Unmanned Aerial Vehicle(UAV)communication.However,existing solutions have high complexity in key updates due to the constantly changing topology of UAV networks.A Zone Partitioning based UAV Communication Physical Layer Group Key Distribution(ZPGKD)algorithm for the physical layer of UAV communication is proposed,which dynamically divides the network into different regions based on the joining order of UAV nodes,and each region maintains an independent group key.By using the proposed ZPGKD algorithm,the keys within and between regions can be updated separately,effectively reducing the cost of key updates when the drone network topology changes.In addition,Hash-based message authentication codes are used to verify key distribution information to resist malicious tampering attacks and ensure key integrity.Theoretical analysis and simulation results show that ZPGKD algorithm not only significantly reduces communication overhead during key updates compared to traditional group key distribution algorithms,but also effectively limits the exposure of paired keys by UAV network nodes.These results validate the effectiveness of the proposed region-based physical layer group key distribution algorithm in UAV networks with dynamically changing nodes and high security requirements.