3 papers
math.GR2024
Binary bi-braces and applications to cryptography
Roberto Civino, Valerio Fedele
In a XOR-based alternating block cipher the plaintext is masked by a sequence of layers each performing distinct actions: a highly nonlinear permutation, a linear transformation, a…
cs.CR2024
Differential experiments using parallel alternative operations
Marco Calderini, Roberto Civino, Riccardo Invernizzi
The use of alternative operations in differential cryptanalysis, or alternative notions of differentials, are lately receiving increasing attention. Recently, Civino et al. managed…
math.CO2023
A definitely periodic chain in the integral Lie ring of partitions
Riccardo Aragona, Roberto Civino, Norberto Gavioli
Given an integer , we introduce the integral Lie ring of partitions with bounded maximal part, whose elements are in one-to-one correspondence to integer partitions with parts i…