Risk analysis study of ITS communication architecture

Intelligent Transportation Systems (ITS) are cooperative systems based on vehicular communications. They involve different actors like manufacturers, transportations authorities and users and enable diverse ITS applications to enhance safety in transportation systems. One of the ultimate design goals of ITS is to have a robust system that resists to various security attacks. Thus, security remains a major challenge before the deployment of such systems. In this paper, we present the ITS framework and communication architecture in Europe. Then, we identify inherent threats in this architecture. Finally, and using ETSI threat analysis methodology, we propose a risk analysis of ITS.