That model works reasonably well when the fleet is small, but it carries two structural flaws that grow worse with scale.
Smart cities are investing billions in connected infrastructure, from adaptive traffic lights to autonomous shuttle fleets, and every one of those systems inherits the security assumptions of the underlying vehicular network.
A centralized authentication model that buckles under load, or that can be toppled by compromising a single server, is a poor foundation for safety-critical transportation.
Even with those qualifications, BAS-IoV is a compelling demonstration that the perceived trade-off between blockchain-grade security and vehicular-grade speed is not inevitable.
BAS-IoV: lightweight blockchain-based authentication for secure and scalable internet of vehicles.