Side Channel Counter-measures based on Randomized AMNS Modular Multiplication

Christophe Negre; Christophe Negre

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Paper

Side Channel Counter-measures based on Randomized AMNS Modular Multiplication

Topics: Applied Cryptography

In Proceedings of the 18th International Conference on Security and Cryptography SECRYPT - Volume 1, 611-619, 2021

Authors: Christophe Negre ^{1

;

2}

Affiliations: ¹ DALI, Université de Perpignan, France ; ² LIRMM, Université de Montpellier and CNRS, France

Keyword(s): Exponentiation, DSA, Scalar Multiplication, ECC, Randomization, AMNS, Side Channel Analysis, Counter-measure.

Abstract: The paper presents counter-measures based on dynamic randomization against side channel analysis like differential and correlation power analysis. The building block of the proposed counter-measure is a randomization of the modular multiplication in AMNS for a prime p. We use this randomized modular multiplication to inject randomization during the whole computation in DSA exponentiation and Co-Z elliptic curve scalar multiplication. We analyze the level of randomization injected and, through implementations results, we evaluate the penalty in terms of performance of the proposed counter-measures.

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Paper citation in several formats:

Negre, C. (2021). Side Channel Counter-measures based on Randomized AMNS Modular Multiplication. In Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-524-1; ISSN 2184-7711, SciTePress, pages 611-619. DOI: 10.5220/0010599706110619

@conference{secrypt21,
author={Christophe Negre.},
title={Side Channel Counter-measures based on Randomized AMNS Modular Multiplication},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT},
year={2021},
pages={611-619},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010599706110619},
isbn={978-989-758-524-1},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT
TI - Side Channel Counter-measures based on Randomized AMNS Modular Multiplication
SN - 978-989-758-524-1
IS - 2184-7711
AU - Negre, C.
PY - 2021
SP - 611
EP - 619
DO - 10.5220/0010599706110619
PB - SciTePress