Amirkhanova , D. and Mamyrbayev О. 2023. CRYPTOGRAPHIC ANALYSIS OF THE SCHEME OF POLYLINEAR CRYPTOGRAPHY. Bulletin of Abai KazNPU. Series of Physical and mathematical sciences. 83, 3 (Sep. 2023), 114–122. DOI:https://doi.org/10.51889/2959-5894.2023.83.3.014.