Poster: Hierarchical Integrity Checking in Heterogeneous Vehicular Networks

Autonomous driving is going to usher a new era of transport. The human driver will be slowly replaced by intelligent systems. The future vehicle will rely on a variety of sensors and algorithms instead of human assessment. Thus, strong requirements for security and safety have to be met, in order to guarantee the well-being of its passengers and environment. In this work, we present a privacy-friendly way of attesting both the hardware and the software components of a vehicle, in order to prove its safety and security to passengers and third parties, e.g. manufacturers and authorities. The proposed scheme introduces different hierarchical levels, in each of which an integrity identifier is calculated based on its sub-components. Finally, a single identifier is computed for the whole vehicle, in order to validate its integrity.