Software-Defined Network enabled Vehicle to Vehicle secured data transmission protocol in VANETs

Software-Defined Network (SDN) improves the performance of the network model by managing the whole system through a programmed software. Nowadays, the concept of SDN can be applied in several application areas such as Wireless Sensor Network (WSN), Internet of Things (IoT) communications, cloud-fog computing, Vehicular Ad-hoc Networks (VANETs), etc. To improve the overall network performance, we have integrated SDN technology in the VANET system for Vehicle to Vehicle(V2V) communication. Security is a major concern in the SDN enabled VANET system. The main objective of this paper is to design an authentication protocol which will establish a common session key for secure communication. Further, this paper provides a solution to protect against the RSU compromisation attack which is always a challenging task. The simulation using the Scyther tool confirms that all the private information is being protected during the protocol run. Moreover, informal security analysis shows that the protocol has no security weaknesses. Besides, the proposed protocol achieves better performance in the aspect of security features and also in terms of computation and communication overheads.