CCIS Seminar - Monday 12 November 2007 - salle A. Pnueli CE3
16:00:00 - Salle de salle A. Pnueli CE3

Boris Koepf, ETH Zurich

Formal Models for Side-Channel Attacks

Abstract: Side-channel attacks have become so effective that they pose a real threat to the security of cryptographic algorithms. This threat is not covered by traditional notions of cryptographic security and models for proving resistance against it are only now emerging. In this talk, I will present work on such a model. It is based on concrete and realistic assumptions about the attacker and it is tailored to synchronous hardware, where faithful system models are available. The model leads to meaningful metrics for assessing the resistance of a system to side-channel attacks. I will show how these metrics can be computed and be used for analyzing nontrivial hardware implementations for their vulnerability to timing attacks.

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