Security and Privacy

Security and privacy are two key requirements for vehicle‐to‐everything (V2X) communication and applications, but the impact they can have on communication bandwidth and latency must be considered. This chapter examines C‐V2X security through a more detailed study of different communication formats and interfaces. That includes vehicle‐to‐network (V2N), in which in a more conventional form, vehicles communicate with the mobile network; vehicle‐to‐vehicle (V2V), in which vehicles communicate directly with each other; and vehicle‐to‐infrastructure (V2I), in which vehicles communicate with the wireless‐enabled road infrastructure. The chapter looks at C‐V2X security from the standpoint of V2N communications and V2V/V2I interactions. Both European Union and US security architectures follow similar principles and rely on public key infrastructures to deliver digital certificates to on‐board units and roadside units, referred to as end entities hereafter – US Security Credential Management System terminology.