SNOVA is a variant of a UOV-type signature scheme over a noncommutative ring. In this article, we demonstrate that certain parameters provided by authors in SNOVA fail to meet the NIST security level, and the complexities are lower than those claimed by SNOVA
VOX is a UOV-like hash-and-sign signature scheme from the Multivariate Quadratic (MQ) family. In 2023, the submitters of VOX updated the sets of recommended parameters of VOX, due to the rectangular MinRank attack proposed by Furue and Ikematsu. In this work we demonstrate the insecurity of the updated VOX, from both the practical and the theoretical aspects, and more works need be done with respect of the security analysis of VOX.
5th PQC Standardization Conference (2024) [in-person]
Fifth PQC Standardization Conference
Starts: April 10, 2024The NIST PQC conference will be held at the: Hilton Washington DC/Rockville Hotel 1750 Rockville Pike Rockville, MD 20852
Security and Privacy: post-quantum cryptography