A Software Defined Networking-Oriented Security Scheme for Vehicle Networks

In the intelligent transportation system (ITS), vehicle networks (VNs) can well solve the network related problems. However, as VNs are expected to have a wide range of applications in future services, security challenges are widely recognized. Consequently, security solutions for VNs are urgently needed. In this paper, we propose a new security strategy for VNs. We first construct the network architecture for VNs through the software defined networking. The security schemes are then embedded in the protocol to defend the common security attacks in the network. Moreover, in order to meet the security requirements of different data and computation overhead, several security schemes are studied for anti-replay, anti-eavesdropping, anti-tamper, anti-wormhole, and anti-forger, through the selection of packets to choose different modules. In particular, we focus on the anti-replay security scheme and use sequence number algorithm and MAC complete sequence number method in master and multi-service modules, respectively. The security schemes are simulated and analyzed by NS-2, which shows that the performance of the proposed security schemes is superior in terms of packet delivery ratio, average end-to-end delay, and control overhead.