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Authors: Ahmed Fraz Baig and Sigurd Eskeland

Affiliation: Norwegian Computing Center, Postboks 114 Blindern, 0314 Oslo, Norway

Keyword(s): Continuous Authentication, Homomorphic Encryption, Keystroke Dynamics, Behavioral Biometrics.

Abstract: Continuous authentication utilizes automatic recognition of certain user features for seamless and passive authentication without requiring user attention. Such features can be divided into categories of physiological biometrics and behavioral biometrics. Keystroke dynamics is proposed for behavioral biometrics-oriented authentication by recognizing users by means of their typing patterns. However, it has been pointed out that continuous authentication using physiological biometrics and behavior biometrics incur privacy risks, revealing personal characteristics and activities. In this paper, we consider a previously proposed keystroke dynamics-based authentication scheme that has no privacy-preserving properties. In this regard, we propose a generic privacy-preserving version of this authentication scheme in which all user features are encrypted —preventing disclosure of those to the authentication server. Our scheme is generic in the sense that it assumes homomorphic cryptographic p rimitives. Authentication is conducted on the basis of encrypted data due to the homomorphic cryptographic properties of our protocol. (More)

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Paper citation in several formats:
Baig, A. and Eskeland, S. (2022). A Generic Privacy-preserving Protocol for Keystroke Dynamics-based Continuous Authentication. In Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT, ISBN 978-989-758-590-6; ISSN 2184-7711, pages 491-498. DOI: 10.5220/0011141400003283

@conference{secrypt22,
author={Ahmed Fraz Baig. and Sigurd Eskeland.},
title={A Generic Privacy-preserving Protocol for Keystroke Dynamics-based Continuous Authentication},
booktitle={Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT,},
year={2022},
pages={491-498},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011141400003283},
isbn={978-989-758-590-6},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT,
TI - A Generic Privacy-preserving Protocol for Keystroke Dynamics-based Continuous Authentication
SN - 978-989-758-590-6
IS - 2184-7711
AU - Baig, A.
AU - Eskeland, S.
PY - 2022
SP - 491
EP - 498
DO - 10.5220/0011141400003283