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Vehicular ad-hoc networks (VANETs) will enable a wide variety of future inter-vehicle and vehicle-to-roadside applications. These services will span a large range of functionality, such as those supporting vehicular safety, to those used for best-effort roadside advertising. To support this wide range, the IEEE 802.11p standard defines seven communication channels, consisting of a single control channel...
We propose a framework for a secure RSU-to-OBU message broadcasting in VANETs using proxy signatures. We consider a VANET infrastructure for which the network assumptions are similar to the current standards of VANET communications. The main purpose of our scheme is to provide message integrity, authenticate the broadcast messages, and authenticate the RSU to the OBUs. We set the appropriate liabilities...
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