Efficient heterogeneous authentication scheme with privacy protection in air-ground collaboration scenario
An efficient heterogeneous authentication scheme was proposed,aiming at the problems of low efficiency of heterogeneous authentication,easy leakage of privacy and large computational overhead due to frequent communication between vehicle and UAV in air-ground collaboration scenarios.An efficient heterogeneous authentication protocol based on the Schnorr signature and physical unclonable function was designed to resist security threats such as clone attacks,physical attacks and replay attacks.A vehicle pseudonym generation method based on a fuzzy extractor and identity token was designed to protect users'privacy,and the identity of malicious vehicles was accurately traced to achieve conditional privacy protection.A handover authentication protocol based on key sharing was designed to reduce the amount of computation in the authentication process,to reduce the energy consumption of the UAV in the authentication process.Experimental results showed that the proposed scheme effectively improved the efficiency of vehicle and UAV authentication,and reduced the computational overhead by 54.8%on average compared with the existing schemes.