Recent reputation-based security approaches for VANETs

One of the important problems of the February 6, 2023, Kahramanmaraş earthquake was those unexpected road blockages due to instantaneous congestion and disaster-related damage caused by forced changes in vehicle routes. Intelligent Transport Systems (ITS), which offer innovative methods to reduce accidents and prevent blockages by improving traffic management, play a vital role in academia and industry in today’s digital world. VANET, created using wireless communication technology between vehicles and roadside units and is an important component of ITS, provides infrastructure for many security-related and non-security applications for different traffic scenarios. However, the open communication nature of these networks makes them susceptible to attacks. It becomes necessary to take precautions against internal attacks, especially in disseminating emergency security-related messages. The inadequacy of cryptological approaches in internal attacks and their high computational complexity have led to the search for new security research in the literature. Reputation-based detection systems have become a popular solution for VANETs in recent years, both in terms of low computational cost and high attack resistance. In this study, recent reputation-based mechanisms designed for VANET in the literature are compared and examined based on various criteria such as design preferences, network parameters, and attack resistance. Thus, it is thought that this study will guide new studies to be conducted in this field in the future.