Abstract
In modern large-scale systems, composed of heterogeneous devices, swarm attestation schemes have emerged to address the scalability and efficiency limitations of traditional single-Prover and single-Verifier approaches. While the PRIVÉ swarm attestation scheme represents the first privacy-preserving swarm attestation scheme, its reliance on classical cryptographic techniques renders it vulnerable to quantum attacks. In this paper, we propose PQ-PRIVÉ, a post-quantum (PQ), privacy-preserving, scalable, and accountable swarm attestation scheme. Our design enables anonymous attestation while preserving device attribute privacy, and its quantum-resistant construction ensures suitability for deployment in the post-quantum era. To the best of our knowledge, this work presents the first PQ-secure swarm attestation scheme. Furthermore, we present experimental benchmarking results that demonstrate the efficiency and scalability of the proposed approach.