A Lightweight Key Agreement Scheme for UAV Network

With the wide application of Unmanned Aerial Vehicles (UAV), safety issues have become increasingly prominent. this paper proposes a lightweight key agreement scheme for UAV network (UAV-KAS) to solve the security problem of UAV communication, we use one-way hash for mutual identity authentication and Elliptic Curve Diffie-Hellman (ECDH) for key agreement, which improves the security of key agreement and reduces the calculation and communication cost of key agreement. The security and performance analysis show that the UAV-KAS has higher security and lower calculation cost. The proposed scheme improves the communication security problem of autonomous cooperation of UAVs. Moreover, it supports the joining and exiting of UAV, which improves the robustness of the UAVs network and can be applied to the dynamic network of UAVs with limited resources.