Attribute-based authenticated protocol for secure communication of VANET

摘要

VANET (Vehicular Ad hoc Network) is prone to attack of safety and leakage of privacy, because of the large scale of networks, openness of the wireless communication channel and easy tracking of mobile vehicles. Motivated by the security requirements, an attribute-based authenticated protocol for secure communication of VANET was proposed, in which attribute-based signcryption and signature were used to help vehicles to securely receive a secret key and message from an RSU or other vehicles, and then the vehicles could anonymously receive different service with different attributes on behalf of the group, moreover attributes scheme was employed to accelerate the verification. The results showed that the scheme achieves confidentiality and authentication, at the same time, the maneuverability and efficiency of the communication and authentication are raised, and which is more suitable for the practical applications.