RingAuth: User Authentication Using a Smart Ring

Jack Sturgess, Simon Birnbach, Simon Eberz, Ivan Martinovic

2025

Abstract

We show that by using inertial sensor data generated by a smart ring, worn on the finger, the user can be authenticated when making mobile payments or when knocking on a door (for access control purposes). We also demonstrate that smart ring data can authenticate payments made with a smartwatch, and vice versa, such that either device can act as an implicit second factor for the other when worn on the same arm. To validate the system, we conducted a user study (n=21) to collect finger and wrist motion data from users as they perform gestures, and we evaluate the system against an active impersonation attacker. We develop payment authentication and access control models for which we achieve equal error rates of 0.04 and 0.02, respectively.

Paper Citation

in Harvard Style

Sturgess J., Birnbach S., Eberz S. and Martinovic I. (2025). RingAuth: User Authentication Using a Smart Ring. In Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT; ISBN 978-989-758-760-3, SciTePress, pages 96-107. DOI: 10.5220/0013494900003979

in Bibtex Style

@conference{secrypt25,
author={Jack Sturgess and Simon Birnbach and Simon Eberz and Ivan Martinovic},
title={RingAuth: User Authentication Using a Smart Ring},
booktitle={Proceedings of the 22nd International Conference on Security and Cryptography - Volume 1: SECRYPT},
year={2025},
pages={96-107},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013494900003979},
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 - RingAuth: User Authentication Using a Smart Ring
SN - 978-989-758-760-3
AU - Sturgess J.
AU - Birnbach S.
AU - Eberz S.
AU - Martinovic I.
PY - 2025
SP - 96
EP - 107
DO - 10.5220/0013494900003979
PB - SciTePress