Abstract
Applying appropriate security measures in wireless Vehicle-to-X (V2X) communication systems is very important since vehicles and roadside units must trust in information received over this channel. State-of-the-art V2X security solutions are based on Elliptic Curve Cryptography (ECC) using the NIST P-256 curve. For long-term use of such security infrastructure, updatability of security measures as well as cryptographic agility must be ensured.
In this paper a process for trust migration is proposed that maintains a fully functional Public Key Infrastructure (PKI) at all times for all entities. To ensure secure long-term operation, multiple security measures are highlighted, analyzed and evaluated. By adjusting the certificate format, new elliptic curves can be supported and flexibility is rendered possible. The evaluation provides a comprehensive analysis and identifies the steps required to deploy a secure and reliable V2X PKI even if cryptographic algorithms change in the future.
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Posielek, JF., Bißmeyer, N., Strobel, A. (2017). A Security Migration Concept for Vehicle-to-X Communication to Allow Long-Term PKI Operation. In: Pirovano, A., et al. Communication Technologies for Vehicles. Nets4Cars/Nets4Trains/Nets4Aircraft 2017. Lecture Notes in Computer Science(), vol 10222. Springer, Cham. https://doi.org/10.1007/978-3-319-56880-5_11
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DOI: https://doi.org/10.1007/978-3-319-56880-5_11
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