A Tale of Two Boards: On the Influence of Microarchitecture on Side-Channel Leakage
Arora, Vipul (Riscure)
Buhan, Ileana (Radboud Universiteit Nijmegen)
Perin, G. (TU Delft Cyber Security)
Picek, S. (TU Delft Cyber Security)
Grosso, Vincent (editor)
Pöppelmann, Thomas (editor)
Advances in cryptography have enabled the features of confidentiality, security, and integrity on small embedded devices such as IoT devices. While mathematically strong, the platform on which an algorithm is implemented plays a significant role in the security of the final product. Side-channel attacks exploit the variations in the system’s physical characteristics to obtain information about the sensitive data. In our scenario, a software implementation of a cryptographic algorithm is flashed on devices from different manufactures with the same instruction set configured for identical execution. To analyze the influence of the microarchitecture on side-channel leakage, we acquire thirty-two sets of power traces from four physical devices. While we notice minor differences in the leakage behavior for different physical boards from the same manufacturer, our results confirm that the difference in microarchitecture implementations of the same core will leak different side-channel information. We also show that TVLA leakage prediction should be treated with caution as it is sensitive to both false positives and negatives.
To reference this document use:
Smart Card Research and Advanced Applications - 20th International Conference, CARDIS 2021, Revised Selected Papers, 13173
20th International Conference on Smart Card Research and Advanced Applications, CARDIS 2021, 2021-11-11 → 2021-11-12, Virtual, Online
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 0302-9743, 13173 LNCS
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© 2022 Vipul Arora, Ileana Buhan, G. Perin, S. Picek