earticle

영어

The SMART Highway project combines road construction with advanced technology and vehicle telecommunication. A Vehicular Ad hoc Network (VANET) is the core technology of the SMART Highway, whose transport operation is based on road vehicle. The VANET is a next-generation networking technology that enables wireless communication between vehicles or between vehicles and a Road Side Unit (RSU). In the VANET system, a vehicle accident is likely to cause a serious disaster. Therefore, some information on safety is essential to serve as the key exchange protocol for communication between vehicles. However, the key exchange scheme of the general network proposed for a fast-moving communication environment is unsuitable for vehicles. In this paper, the initial communication from the RSU is passed only with group keys. Then the key value in the communication is updated when the vehicle itself uses Bloom filters to verify the proposed method. In the proposed VANET scheme, the distributed operations are focused on the RSU and more secure group communication can be achieved by minimizing the number of key exchanges. Accordingly, communication between multiple vehicles more efficient and secure key exchange at the vehicle certification by signcryption and vehicle certification method that uses a counting bloom filter for more efficient certification is proposed.