An SDN Architectural Framework for VANET Security and Data Storage

Vehicular Ad hoc NETworks (VANETs) are an active area of research because of their potential to improve road safety and to enhance traffic efficiency. High dynamic connections, sensitive information sharing, and time-sensitivity nature of VANET make it an eye-catching field for attackers. Software-defined networking (SDN) can be used to implement any network, due to the separation of the control program and data plane. In this paper, we have proposed an SDN architectural framework to enhance the storage capacity and to provide security to prevent specific VANET attacks. The storage capacity is enhanced using B+ tree and the security to the storage is provided using X.509 public key certification. On the other hand, we have used signaling game-theoretic solutions in the architectural framework to prevent the attacks. The framework provides end-to-end security to the communication between devices of VANET. Experimentation results show efficient data retrieval with less computational complexity and 98% attack detection and prevention with high throughput and less delay.