TY - JOUR AU - T. A. Bonich AU - M. A. Panferov AU - N. N. Tokareva TI - On the number of $\ell$-suitable Boolean functions in constructions of filter and combining models of stream ciphers JO - Prikladnaâ diskretnaâ matematika PY - 2023 SP - 21 EP - 28 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDM_2023_4_a2/ LA - en ID - PDM_2023_4_a2 ER -