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Communication Dans Un Congrès Année : 2023

Improved alpha-information bounds for higher-order masked cryptographic implementations

Résumé

Embedded cryptographic devices are usually pro- tected against side-channel attacks by masking strategies. In this paper, the security of protected cryptographic implementations is evaluated for any masking order, using alpha-information measures. Universal upper bounds on the probability of success of any type of side-channel attack are derived. These also provide lower bounds on the minimum number of queries required to achieve a given success rate. An important issue, solved in this paper, is to remove the loss factor due to the masking field size.
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Dates et versions

hal-04136985 , version 1 (11-07-2023)

Identifiants

  • HAL Id : hal-04136985 , version 1

Citer

Yi Liu, Julien Béguinot, Wei Cheng, Sylvain Guilley, Loïc Masure, et al.. Improved alpha-information bounds for higher-order masked cryptographic implementations. IEEE Information Theory Workshop (ITW 2023), IEEE, Apr 2023, Saint Malo, France. ⟨hal-04136985⟩
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