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Authors: Houssem Maghrebi and Davide Alessio

Affiliation: UL Identity Management & Security, France

Keyword(s): White-box Cryptography, Masking, Higher-order Computational Attacks, Leakage Detection, AES.

Abstract: White-box cryptography was first introduced by Chow et al. in 2002 as a software technique for implementing cryptographic algorithms in a secure way that protects secret keys in an untrusted environment. Ever since, Chow et al.’s design has been subject to the well-known Differential Computation Analysis (DCA). To resist DCA, a natural approach that white-box designers investigated is to apply the common side-channel countermeasures such as masking. In this paper, we suggest applying the well-studied leakage detection methods to assess the security of masked white-box implementations. Then, we extend some well-known side-channel attacks (i.e. the bucketing computation analysis, the mutual information analysis, and the collision attack) to the higher-order case to defeat higher-order masked white-box implementations. To illustrate the effectiveness of these attacks, we perform a practical evaluation against a first-order masked white-box implementation. The obtained results have demon strated the practicability of these attacks in a real-world scenario. (More)

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Paper citation in several formats:
Maghrebi, H. and Alessio, D. (2020). Revisiting Higher-order Computational Attacks against White-box Implementations. In Proceedings of the 6th International Conference on Information Systems Security and Privacy - ICISSP; ISBN 978-989-758-399-5; ISSN 2184-4356, SciTePress, pages 265-272. DOI: 10.5220/0008874602650272

@conference{icissp20,
author={Houssem Maghrebi. and Davide Alessio.},
title={Revisiting Higher-order Computational Attacks against White-box Implementations},
booktitle={Proceedings of the 6th International Conference on Information Systems Security and Privacy - ICISSP},
year={2020},
pages={265-272},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008874602650272},
isbn={978-989-758-399-5},
issn={2184-4356},
}

TY - CONF

JO - Proceedings of the 6th International Conference on Information Systems Security and Privacy - ICISSP
TI - Revisiting Higher-order Computational Attacks against White-box Implementations
SN - 978-989-758-399-5
IS - 2184-4356
AU - Maghrebi, H.
AU - Alessio, D.
PY - 2020
SP - 265
EP - 272
DO - 10.5220/0008874602650272
PB - SciTePress

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