TY CONF TI BERNULLI NUMBERS IN CRYPTOGRAPHY KW encryption KW Bernoulli numbers KW cryptography KW data security KW recurrence relations JO OPERATOR EQUATIONS AND SOME RELATED ISSUES IN APPLIED MATHEMATICS AU Poltarabatko, R.S. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov