Securing solar energy‐harvesting road‐side unit using an embedded cooperative‐hybrid intrusion detection system

This study deals with the design and implementation of an Embedded Cooperative‐Hybrid Intrusion Detection System (ECHIDS) for a solar energy harvested Road Side Unit(RSU). In order to offer a high level of defense against the various attacks and to cope against the limited processing and energy resources of RSU, we suggest a cooperative IDS approach. In this approach, the RSUs do not depend only on their local view to make conclusions about the security status of their network, but also cooperate with their VANET server by exchanging security reports to create a more global and precise idea about the security situation of the whole network, the possible attacks and their origins. The other main contribution in this paper is the attempt to insert a Hybrid Intrusion Detection System functionality (combines all the three IDS techniques :signature based IDS, anomaly based IDS and behavioral based IDS) into the RSU itself. Each one of these IDSs has its own resistance strategy against certain classes of attacks which enhances RSUs’ immunity. The suggested IDS was prototyped using an experimental model based on the Ubicom IP2022 network processor development kit and different practical tests were performed to evaluate the effectiveness of the suggested solutions.