Performance Evaluation of Pseudonym Reload over Cellular Technology

Security credential systems are used by vehicles to secure communications in Cooperative Intelligent Transportation Systems (C-ITS). Privacy protection of vehicles/passengers is ensured by a pseudonymization mechanism of communication identities and certificates. Vehicles request pseudonym certificates from the Public Key Infrastructure (PKI) and change them frequently. They renew their certificates pool by requesting new certificates from the PKI.In this paper, we present and discuss the performance of pseudonym certificate reloading from the PKI over cellular network (4G). We conducted several tests, statically and while driving, in order to evaluate the performance in both scenarios.