Secure Protocols in VANETs: Availability Considerations*

The vehicular network technology provides several intelligent applications over road networks. These applications are classified into safety, efficiency, and infotainment based on their functionalities. Several studies have been proposed recently in this field where advanced and intelligent applications are developed for connected vehicles. This field of research seeks intensive and dedicated studies to enhance the confidentiality, integrity, and availability of the connecting network. In this work, we investigate the availability feature for vehicular network applications. First, we define the denial of service (DoS) attack and its different types. Then, we explore several possible DoS scenarios in the vehicular network environment. After that, we study the previous secure protocols that have generally considered and tackled the DoS attack on the vehicular network. Finally, we remark on the performance and functionalities of previous studies illustrating the main limitations and required work in this field. Thus we recommend future required work and studies in this field.