An Interoperability System for Authentication and Authorization in VANETs

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Executive Summary

Vehicular Ad-Hoc NETworks (VANETs) have evolved considerably over the last years, promising to drastically reduce the number of traffic victims by increasing the overall road safety. Despite the wide number of potential applications VANETs also raise a broad range of critical security challenges mostly related with Privacy, which remains as an important factor to consider for the successful deployment of these technologies. To achieve privacy it is important to enforce the concepts of authentication and authorization via well proved mechanisms, i.e. Public Key Infrastructures (PKI) relying on a large set of regional Certification Authorities (CAs) with explicit cross-certification agreements to provide interoperability for vehicles and services.

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