Institute of Electrical and Electronics Engineers
In this paper, the authors propose a navigation scheme that utilizes the online road information collected by a Vehicular Ad hoc NETwork (VANET) to guide the drivers to desired destinations in a real-time and distributed manner. The proposed scheme has the advantage of using real-time road conditions to compute a better route and at the same time, the information source can be properly authenticated. To protect the privacy of the drivers, the query (destination) and the driver who issues the query are guaranteed to be unlikable to any party including the trusted authority. The authors make use of the idea of anonymous credential to achieve this goal. In addition to authentication and privacy preserving, their scheme fulfills all other necessary security requirements.