PRIVÉ: Towards Privacy-Preserving Swarm Attestation

Nada El Kassem, Wouter Hellemans, Ioannis Siachos, Edlira Dushku, Stefanos Vasileiadis, Dimitrios S. Karas, Liqun Chen, Constantinos Patsakis, Thanassis Giannetsos

2025

Abstract

In modern large-scale systems comprising multiple heterogeneous devices, the introduction of swarm attestation schemes aims to alleviate the scalability and efficiency issues of traditional single-Prover and single-Verifier attestation. In this paper, we propose PRIV´E , a privacy-preserving, scalable, and accountable swarm attestation scheme that addresses the limitations of existing solutions. Specifically, we eliminate the assumption of a trusted Verifier, which is not always applicable in real-world scenarios, as the need for the devices to share identifiable information with the Verifier may lead to the expansion of the attack landscape. To this end, we have designed an enhanced variant of the Direct Anonymous Attestation (DAA) protocol, offering traceability and linkability whenever needed. This enables PRIV´E to achieve anonymous, privacy-preserving attestation while also providing the capability to trace a failed attestation back to the compromised device. To the best of our knowledge, this paper presents the first Universally Composable (UC) security model for swarm attestation accompanied by mathematical UC security proofs, as well as experimental benchmarking results that highlight the efficiency and scalability of the proposed scheme.

Paper Citation

in Harvard Style

El Kassem N., Hellemans W., Siachos I., Dushku E., Vasileiadis S., Karas D., Chen L., Patsakis C. and Giannetsos T. (2025). PRIVÉ: Towards Privacy-Preserving Swarm Attestation. In Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT; ISBN 978-989-758-760-3, SciTePress, pages 247-262. DOI: 10.5220/0013629000003979

in Bibtex Style

@conference{secrypt25,
author={Nada El Kassem and Wouter Hellemans and Ioannis Siachos and Edlira Dushku and Stefanos Vasileiadis and Dimitrios Karas and Liqun Chen and Constantinos Patsakis and Thanassis Giannetsos},
title={PRIVÉ: Towards Privacy-Preserving Swarm Attestation},
booktitle={Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT},
year={2025},
pages={247-262},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013629000003979},
isbn={978-989-758-760-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT
TI - PRIVÉ: Towards Privacy-Preserving Swarm Attestation
SN - 978-989-758-760-3
AU - El Kassem N.
AU - Hellemans W.
AU - Siachos I.
AU - Dushku E.
AU - Vasileiadis S.
AU - Karas D.
AU - Chen L.
AU - Patsakis C.
AU - Giannetsos T.
PY - 2025
SP - 247
EP - 262
DO - 10.5220/0013629000003979
PB - SciTePress