Assessment of attribute-based credentials for privacy-preserving road traffic services in smart cities
Vehicular Ad-Hoc NETworks (VANETs), a pillar for the Internet of Vehicles, aim to improve road safety by preventing and reducing traffic accidents. While VANETs offer a great variety of safety and infotainment applications, there remain a number of security and privacy challenges, such as, user profiling and vehicle tracking, which, must be addressed. This paper contributes with a framework to address security and privacy issues in VANETs. The proposed framework consists of i) an inter-domain authentication system able to provide a near realtime certificate status service, ii) a mechanism to quantitatively evaluate the trust level of a CA and establish a on-the-fly interoperability relationship, and iii) a privacy enhancing model that addresses privacy in terms of linkability.