Vehicle trust management for connected vehicles : final research report.

Final research reportPDFTech ReportDTRT12GUTG11Computer securityIntelligent vehiclesMobile communication systemsVehicle safetyUnited StatesCarnegie-Mellon University. Technologies for Safe and Efficient Transportation University Transportation CenterLee, InsupBezzo, NicolaChang, JianCarnegie-Mellon University. Technologies for Safe and Efficient Transportation University Transportation CenterUniversity of PennsylvaniaUnited States. Dept. of Transportation. Research and Innovative Technology AdministrationUniversity Transportation Centers Program (U.S.)US Transportation CollectionThe goal of this project is to research a wide range of transportation-related issuesincluding: improving health and safety for all users of the transportation system, includingbicycles, pedestrians and transit modes; reducing carbon emissions and otherenvironmental impacts of transportation through a transition to zero-emission vehicles andfuels; and evaluating how increasingly autonomous vehicles affect driver behavior, safetyand performance.Consider a scenario where a vehicle on a highway broadcasts a message with an incidentreport (e.g., accident, traffic congestion, broken bridge) to the vehicles immediately behindit using the underlying V2V network. Each receiving vehicle forwards the message furtherdownstream. Additionally, if a forwarding vehicle (that is, the user driving it) believes themessage itself, it will endorse the message by signing it. A vehicle originating an incidentreport will always endorse it. Consequently, a vehicle receiving a V2V incident report willhave at least one endorsement associated with it. Upon receiving an incident report, avehicle needs to make a decision on whether it trusts the report based on all the vehiclesthat have endorsed the report. This decision is taken based on: (1) a trust triple computedfor each of the endorsers, and (2) combining the individual endorser trust triples to producean aggregate trust score for the message