Presenter: Rafael CARRERA RODRIGUEZ

Abstract:
The advent of quantum computing represents a threat for classical cryptography, which points the need for cryptographic schemes that are not a target of quantum algorithms. Propositions of this type of cryptography, called Post-quantum cryptography, have been under intense research and analysis from the scientific community, specially from the launch of the NIST Post Quantum Standardization Contest in 2016. Current respected algorithms, like CRYSTALS-Kyber, a lattice-based cryptography key encapsulation mechanism, are assumed to be mathematically safe under the black box model. However, implementations of secure algorithms may leak intermediate values through so-called side-channels. These side-channels can vary in nature, from power consumption to electromagnetic radiation. In this seminar, we explain the basics of CRYSTALS-Kyber and side-channel attacks, along with proposed attacks and countermeasures for hardware implementations.

Date: April 24, 2023 from 2 to 4 pm (salle de séminiaires, LIRMM*)