Project period: 2024-2027

Presentation

Software-defined vehicles depend on frequent over-the-air updates and on a distributed ecosystem of vehicle, network, and cloud components. This architecture improves the ability to evolve vehicle software, but it also creates new entry points for attacks and allows vulnerabilities to propagate across entire fleets. Security decisions must therefore account for the software update, the vehicle context, and the scale of deployment together.

The project studies automated and adaptive methods for protecting this update ecosystem. Its work combines cybersecurity, safety, and fleet-impact analysis to quantify risks from natural-language vulnerability descriptions. It also explores distributed update delivery using differential updates, peer-to-peer content distribution, and coordinated vehicle-to-network and vehicle-to-vehicle communication, including resilience under intermittent connectivity.

Partners

  • VEDECOM
  • SCN Team at Télécom Sud-Paris

Results

  • A distributed OTA architecture based on differential updates, IPFS, and ThingsBoard orchestration.
  • An adaptive OTA risk-quantification framework combining cybersecurity, safety, and fleet-impact assessment.
  • A contextual scoring approach that adjusts risk according to update criticality and vulnerability location.

Publications

  • Khaoula Sghaier, Ghada Gharbi, Badis Hammi, Pierre Merdrignac, Pierre Parrend, and Didier Verna. 2026. “OTARQ: Adaptive and Automated Risk Quantification Method for OTA Updates in SDVs.” International Conference on Privacy, Security, and Trust (PST). Paper.
  • Khaoula Sghaier, Ghada Gharbi, Badis Hammi, Pierre Merdrignac, Pierre Parrend, and Didier Verna. 2026. “Approche automatisée pour l’évaluation des risques des mises à jour OTA dans les véhicules définis par logiciel.” RESSI. Paper.
  • Khaoula Sghaier, Arslane Hamza-Cherif, Pierre Merdrignac, Ghada Gharbi, Chahrazed Ksouri, Bechir Yengui, Badis Hammi, Pierre Parrend, and Didier Verna. 2026. “Dual-Path V2N/V2V OTA Update Distribution for SDVs: Design and Experimental Evaluation.” Vehicular Technology Conference (VTC). Paper.

Project page: SDV