A Single-Trace Message Recovery Attack on a Masked and Shuffled Implementation of CRYSTALS-Kyber

ePrint Report: A Single-Trace Message Recovery Attack on a Masked and Shuffled Implementation of CRYSTALS-Kyber

Sönke Jendral, Kalle Ngo, Ruize Wang, Elena Dubrova

Last year CRYSTALS-Kyber was chosen by NIST as a new, post-quantum secure key encapsulation mechanism to be standardized. This makes it important to assess the resistance of CRYSTALS-Kyber implementations to physical attacks. Pure side-channel attacks on post-quantum cryptographic algorithms have already been well-explored. In this paper, we present an attack on a masked and shuffled software implementation …

attack crystals-kyber eprint report implementation important key mechanism message ngo nist post-quantum quantum quantum secure recovery report single trace wang