zk-ScalHard: Scalable and Hardware-Rooted Privacy-Preserving Authentication for Secure OTA Updates in Zonal SDVs

arXiv:2607.07371 · cs.CR · Submitted 2026-07-08 · Read on arXiv

Shrikant Tangade, Bansi Pambhar, Valeria Loscri, Mauro Conti

cs.CR

Submitted: 2026-07-08

Comments: Official Technical Report (v2 updated with official repository and implementation details). Produced in collaboration with the SERENDIPITY Team (Inria), the autoMoTIVe-X Lab, and the University of Padua. Source code and implementation: https://github.com/autoMoTIVe-X/zk-ScalHard

Code: https://github.com/autoMoTIVe-X/zk-ScalHard

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Verification — 45× in this paper · explained in 2 episodes
• Aggregation — 20× in this paper · explained in 1 episode
• Data Sovereignty — 11× in this paper · explained in 2 episodes
• ECU Version Report — 9× in this paper
• Verifier — 9× in this paper · explained in 2 episodes
• Vehicle Version Manifest — 8× in this paper
• Benchmark — 4× in this paper · explained in 2 episodes
• Benchmarking — 4× in this paper · explained in 3 episodes
• Zero-Knowledge Proof — 4× in this paper
• United Nations — 3× in this paper
• Automotive Ethernet — 2× in this paper
• Communication Overhead — 2× in this paper · explained in 2 episodes
• Core — 2× in this paper · explained in 2 episodes
• Decode — 2× in this paper · explained in 2 episodes
• Decoupling — 2× in this paper · explained in 2 episodes
• High-Performance Computing Aggregation — 2× in this paper
• MSCA Seal of Excellence — 2× in this paper
• Public-Key Infrastructure — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• Adversarial Model — 1× in this paper · explained in 1 episode
• Computational overhead — 1× in this paper · explained in 2 episodes
• Digital Twin — 1× in this paper · explained in 5 episodes
• Steering — 1× in this paper · explained in 2 episodes
• Zero-Knowledge Proofs (ZKPs) — 1× in this paper · explained in 3 episodes
• Zonal-oriented Architectures — 1× in this paper

Sources

• Zero-Knowledge Proof Frameworks: A Systematic Survey

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