Inter-Class vs. Mutual Information as Side-Channel Distinguishers

Olivier Rioul 1, 2 Annelie Heuser 1, 2 Sylvain Guilley 3, 2 Jean-Luc Danger 3, 2
1 COMNUM - Communications Numériques
LTCI - Laboratoire Traitement et Communication de l'Information
3 SSH - Secure and Safe Hardware
LTCI - Laboratoire Traitement et Communication de l'Information
Abstract :

A novel “interclass information” side-channel distin- guisher is compared to mutual information analysis. Interclass information possesses properties similar to mutual information but uses a different comparing strategy between the underlying conditional distributions. It is shown that interclass information can outperform mutual information in side-channel analysis, es- pecially under low noise. The theoretical comparison is confirmed by simulations.

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https://hal.telecom-paristech.fr/hal-02287308
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Submitted on : Friday, September 13, 2019 - 4:50:49 PM
Last modification on : Thursday, October 17, 2019 - 12:37:03 PM

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  • HAL Id : hal-02287308, version 1

Citation

Olivier Rioul, Annelie Heuser, Sylvain Guilley, Jean-Luc Danger. Inter-Class vs. Mutual Information as Side-Channel Distinguishers. 2016 IEEE International Symposium on Information Theory (ISIT'16), Jul 2016, Barcelona, Spain. ⟨hal-02287308⟩

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