In this paper, we introduce a new practical and secure architecture for vehicular black-box image sharing in VANET, which consists of black-box equipped vehicles, roadside units (RSUs) and a centralized traffic image control server (TICS). In our model, all vehicles that registered to TICS provide with their black-box images to TICS so that TICS manages all traffic images about the entire roads. Then, the vehicles can obtain up-to-date traffic images for any locations from TICS in real-time. For its efficient and secure use, we propose an RSU-assisted communication mechanism to minimize the communicational overheads, and anonymous authentication protocols for preserving vehicle's privacy. We also analyze the efficiency of our model using NS3 simulator.
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