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Authors: Jacek Cichoń ; Krzysztof Majcher and Mirosław Kutyłowski

Affiliation: Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław, Poland

Keyword(s): Fair Authentication, Authentication with Errors, Privacy Protection, GDPR, Markov Chain, Absorbing State, Rapid Mixing.

Abstract: We consider a fair authentication process where at each moment of the protocol execution each participant has almost the same certainty about the identity of the other participant. We combine this property with authentication with errors: each authentication bit may be replaced to the wrong value. Thereby, an observer attempting to derive the secret key(s) used for authentication in a cryptanalytic way has substantially harder job due to an unknown error pattern (learning secrets with errors). We show that the presented protocol satisfies subtle requirements of the GDPR Regulation of data minimization in case of failure.

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Paper citation in several formats:
Cichoń, J.; Majcher, K. and Kutyłowski, M. (2021). Fair Mutual Authentication. In Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-524-1; ISSN 2184-7711, SciTePress, pages 754-759. DOI: 10.5220/0010579507540759

@conference{secrypt21,
author={Jacek Cichoń. and Krzysztof Majcher. and Mirosław Kutyłowski.},
title={Fair Mutual Authentication},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT},
year={2021},
pages={754-759},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010579507540759},
isbn={978-989-758-524-1},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT
TI - Fair Mutual Authentication
SN - 978-989-758-524-1
IS - 2184-7711
AU - Cichoń, J.
AU - Majcher, K.
AU - Kutyłowski, M.
PY - 2021
SP - 754
EP - 759
DO - 10.5220/0010579507540759
PB - SciTePress