A secure group management scheme for join/leave procedures of UAV squadrons

Abstract

This paper proposes a secure group management scheme for the join/leave procedures of UAV squadrons. All public keys of the group members are owned by the leader of the group. In the join procedure of the groups, the public keys are exchanged by the leader of each group to generate a session key of each UAV. The leader generates a group matching key using the session key and broadcasts it to the member. Each member of the group generates a group key using the group matching key. Therefore, the entire UAV does not need to communicate with each other and proceed leave procedure. This minimizes the public key transmission cost and the number of group key renewals. As a result, the newly created group renews the new group key and can exchange the information securely between the groups using this group key. We derive the proposed scheme as a formula and visualize the cost in the join/leave procedures. For objective evaluation, we show the comparison between the existing join/leave procedures and the proposed join/leave procedures