The Implementation And Performance Evaluation Of Wave Based Secured Vehicular Communication System

Communication security is one of the most significant issues to draw people's attention in vehicular ad-hoc networks (VANETs). To prevent from malicious nodes and ensure the confidence and integrity of the messages, vehicles have to authenticate each other and support message signature and encryption. As the most prospective approaches, though the generally accepted wireless access for vehicular environment (WAVE) specifications have standardized the security algorithms to exchange the confidential data between vehicles, few of systems consider two technical aspects of signature and encryption together and implement on the real on-board unit (OBU). In this paper, a WAVE based secured vehicular communication system has been developed and WAVE security algorithms ECDSA and ECIES have been implemented to enhance communication security. The certificate authority (CA) has been introduced to the algorithms for authentication and preventing from the malicious nodes. The alternative security levels have been designed according to the different types of messages. Considering the execution time and communication cost of the constituent steps, real-world test has been conducted in our proposed application scenarios to manifest how security procedures affect the communication performance. The results have attested that the system in different security levels can achieve a secure data transmission with no effect on communication.