Abstract: AVP in intelligent transportation systems is an excellent solution for improving fuel efficiency and driving safety. Based on Internet of Things and 5G communication technology, autonomous vehicle platoons are susceptible to various attacks during the process of intelligent teaming and behavior communication, leading to safety accidents. To this end, an attribute-based revocable traceable access control scheme is proposed in combination with edge computing technology. Firstly, fine-grained access control is achieved using attribute-based encryption.  Secondly, dynamic updating of the platoon key is implemented using CRT, allowing for the message’s revocable storage and reducing the computational overhead on the vehicle-side through the assistance of roadside infrastructure. Furthermore, an anonymous user and traceability of malicious vehicles are achieved using an elliptic curve encryption mechanism. Finally, through security analysis and simulation experiments, it is shown that the scheme is feasible in terms of security and efficiency.

Key words: autonomous vehicle platoon (AVP), attribute-based encryption, access control, Chinese remainder theorem(CRT)