The Impact of Run-Time Variability on Side-Channel Attacks Targeting FPGAs

• URL: http://arxiv.org/abs/2409.01881v2
• Date: Mon, 16 Sep 2024 10:07:30 GMT
• Title: The Impact of Run-Time Variability on Side-Channel Attacks Targeting FPGAs
• Authors: Davide Galli, Adriano Guarisco, William Fornaciari, Matteo Matteucci, Davide Zoni,
• Abstract summary: This work proposes a fine-grained dynamic voltage and frequency scaling actuator to investigate the effectiveness of desynchronization countermeasures. The goal is to highlight the link between the enforced run-time variability and the vulnerability to side-channel attacks of cryptographic implementations targeting FPGAs.
• Score: 5.795035584525081
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: To defeat side-channel attacks, many recent countermeasures work by enforcing random run-time variability to the target computing platform in terms of clock jitters, frequency and voltage scaling, and phase shift, also combining the contributions from different actuators to maximize the side-channel resistance of the target. However, the robustness of such solutions seems strongly influenced by several hyper-parameters for which an in-depth analysis is still missing. This work proposes a fine-grained dynamic voltage and frequency scaling actuator to investigate the effectiveness of recent desynchronization countermeasures with the goal of highlighting the link between the enforced run-time variability and the vulnerability to side-channel attacks of cryptographic implementations targeting FPGAs. The analysis of the results collected from real hardware allowed for a comprehensive understanding of the protection offered by run-time variability countermeasures against side-channel attacks.

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