A Practical Template Attack on CRYSTALS-Dilithium

ePrint Report: A Practical Template Attack on CRYSTALS-Dilithium

Alexandre Berzati, Andersson Calle Viera, Maya Chartouni, Steven Madec, Damien Vergnaud, David Vigilant

This paper presents a new profiling side-channel attack on the signature scheme CRYSTALS-Dilithium, which has been selected by the NIST as the new primary standard for quantum-safe digital signatures. This algorithm has a constant-time implementation with consideration for side-channel resilience. However, it does not protect against attacks that exploit intermediate data leakage. We exploit such a leakage on a …

algorithm attack attacks channel data data leakage digital digital signatures eprint report exploit nist profiling protect quantum quantum-safe report resilience safe side-channel side-channel attack signature signatures standard template