Side-channel attacks are performed on increasingly complex targets, starting to threaten superscalar CPUs supporting a complete operating system. The difficulty of both assessing the vulnerability of a device to them, and validating the effectiveness of countermeasures is increasing as a consequence. In this work we prove that assessing the side-channel vulnerability of a software implementation running on a CPU should take into account the microarchitectural features of the CPU itself. We characterize the impact of microarchitectural features and prove the effectiveness of such an approach attacking a dual-core superscalar CPU.

Side-channel security of superscalar CPUs: Evaluating the Impact of Micro-architectural Features

A. Barenghi;G. Pelosi
2018-01-01

Abstract

Side-channel attacks are performed on increasingly complex targets, starting to threaten superscalar CPUs supporting a complete operating system. The difficulty of both assessing the vulnerability of a device to them, and validating the effectiveness of countermeasures is increasing as a consequence. In this work we prove that assessing the side-channel vulnerability of a software implementation running on a CPU should take into account the microarchitectural features of the CPU itself. We characterize the impact of microarchitectural features and prove the effectiveness of such an approach attacking a dual-core superscalar CPU.
2018
Proceedings of the 55th Annual Design Automation Conference, DAC’18, San Francisco, CA, USA, June 24–28, 2018
978-145035700-5
Side Channel Attacks, Superscalar microarchitecture
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1066452
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