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Durabilité de l'acier inoxydable martensitique 17-4 PH obtenu par fabrication additive

Abstract : The goal of this work is to propose new methods that provide both a high security and a high energy efficiency for integrated circuits for the IoT.On the one side, we study the security of a mechanism dedicated to energy management. Wake-up radios trigger the wake-up of integrated circuits upon receipt of specific wake-up tokens, but they are vulnerable to denial-of-sleep attacks, during which an attacker replays such a token indefinitely to wake-up a circuit and deplete its battery. We propose a new method to generate unpredictable wake-up tokens at each wake-up, which efficiently prevents these attacks at the cost of a negligible energy overhead.On the other side, we improve on the energy efficiency of hardware countermeasures against fault and side-channel attacks, with two different approaches. First, we present a new combined countermeasure, which increases by four times the power consumption compared to an unprotected implementation, introduces no performance overhead, and requires less than 8 bits of randomness. Therefore, it has a lower energy overhead than existing combined protections. It consists in an algorithm-level power balancing that inherently detects faults. Then, we propose an adaptive implementation of hardware countermeasures, which consists in applying or removing these countermeasures on demand, during the execution of the protected algorithm, in order to tune the security level and the energy consumption. A security evaluation of all the proposed countermeasures indicates that they provide an efficient protection against existing hardware attacks.
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Submitted on : Wednesday, October 14, 2020 - 11:18:11 AM
Last modification on : Friday, October 16, 2020 - 3:05:18 AM


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  • HAL Id : tel-02966640, version 1



Maxime Montoya. Durabilité de l'acier inoxydable martensitique 17-4 PH obtenu par fabrication additive. Autre. Université de Lyon, 2019. Français. ⟨NNT : 2019LYSEM032⟩. ⟨tel-02966640⟩



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