Side-channel attacks against Dilithium and countermeasures evaluation

Abstract

This paper provides a comprehensive study of side-channel attacks (SCA) and fault injection attacks (FIA) on lattice-based schemes, with an emphasis on the Dilithium signature scheme. The paper also examines a number of individual countermeasures capable of providing/improving protection against existing SCA/FIAs. The performance evaluation shows that the considered countermeasures cause a reasonable level of performance loss in real-world applications.