[Resource Topic] 2020/681: An F-algebra for analysing information leaks in the presence of glitches

Welcome to the resource topic for 2020/681

Title:
An F-algebra for analysing information leaks in the presence of glitches

Authors: Vittorio Zaccaria

Abstract:

This report deals with the problem of identifying the potential correlations between the observable power consumption of a digital circuit and its inputs, when the operating conditions of the circuit involve a logic hazard (also known as glitch). This problem is of utmost importance when the circuit is a cryptographic primitive that must ensure that secret input data (e.g., keys) does not leak. We present a universal algebra construction that allows to derive a set of artefacts from a digital circuit among which a conservative estimate of the Boolean expression that the circuit might leak as well as the extended input/output correlation matrix [1]. This allows the evaluation of the robustness against side channel attacks through a set of constructions that fall under the umbrella of robust probing security [2]. We believe that such a formalisation is well suited for CAD synthesis tools to help the design of more robust cryptographic primitives.

ePrint: https://eprint.iacr.org/2020/681

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