Kozina, G. L., Yu. V. Savchenko, V. O. Voskoboinyk, D. I. Prokopovich-Tkachenko, and V. V. Katsiuba. 2024. “MATHEMATICAL APPROACH TO IMPROVING THE PERFORMANCE OF THE PROGRAMMED IMPLEMENTATION OF THE SM4 CRYPTOALGORITHM”. Systems and Technologies 68 (2), 78-85. https://doi.org/10.32782/2521-6643-2024-2-68.9.