Enhanced Lightweight Group Signature Scheme for Violation Report in Vehicular Ad-Hoc Networks

Recently, Vehicular Ad-Hoc Networks (VANETs) have emerged as a key component of intelligent transportation systems, facilitating communication between vehicles and roadside infrastructure. However, VANETS has a major challenge in ensuring secure and reliable authentication of violation reports, especially in environments that are prone to malicious attacks and mobility. This work proposed a signature-based authentication scheme and leverages the Rivest-Shamir-Adleman (RSA) algorithm to verify violation reports that help protect the integrity and privacy of communication between vehicles and road infrastructure. To evaluate the proposed scheme, we used OMNeT++, Veins, and Simulation of Urban Mobility (SUMO) tools. In addition, we performed an all-round analysis for key performance metrics, i.e., validation and violation report numbers, communication overhead, computational overhead, and signature verification time. The results achieved proved the effectiveness of the proposed scheme in ensuring the efficient provision of robust signature-based authentication messages. We consider this work a stepping stone for further investigation into sophisticated security models that will be developed for still- and moving-vehicle environments