ABSTRACT
Internet of Vehicles (IoV) represents a complex and dynamic environment of collaboration and data exchange between vehicles, infrastructure devices, pedestrians, cloud nodes, and other components. Establishing a trust relationship between such objects has proven to be unavoidable for allowing secure access to services such as routing, road safety consigns, and traffic data accessibility. However, security and privacy issues become more complex in such a context characterized by the large volume of data and the geographical dispersion and the dynamicity of involved objects. In this work, we present security and privacy issues encountered in an IoV environment and recently proposed solutions. Moreover, we propose an approach to improve IoV security and privacy while respecting latest advancements in IoV architectures which are based on edge, fog, and cloud layers. Practically, we consider the fog paradigm, which has recently emerged, to handle authentication and authorization of IoV devices at the edge level. Thus, a trust authority is deployed at every fog node along with an interfog authority allowing the handover and collaboration between fog nodes. This approach improves the manageability of low-level devices, thus allowing detecting threats at the fog node level, as well as allows the isolation of threats protecting the overall system from infections.
