Efficient and Timely Revocation of V2X Credentials
Gianluca Scopelliti
Network and Distributed System Security (NDSS) Symposium 2024 · Day 1 · Applied Cryptography
In the rapidly evolving landscape of Intelligent Transport Systems (ITS), the security and trustworthiness of Vehicle-to-Everything (V2X) communication are paramount for ensuring road safety and enabling advanced functionalities like autonomous driving and platooning. A fundamental pillar of this security is the ability to efficiently and promptly revoke cryptographic credentials belonging to misbehaving or malicious vehicles. However, existing V2X standards often provide ambiguous guidance on revocation mechanisms, and current implementations frequently struggle with scalability, reactivity, or both, leaving critical windows during which malicious actors can cause harm.