TY CONF TI APPLICATION OF MULTI-FACTOR AUTHENTICATION TO ENSURE KEY INFRASTRUCTURE RESILIENCE IN DISTRIBUTED LEDGER TECHNOLOGY SYSTEMS TO SOME DESTRUCTIVE INFLUENCES KW distributed ledger technology KW key infrastructure KW multi-factor authentication KW resistance to destructive influences JO CHALLENGING ISSUES IN SYSTEMS MODELING AND PROCESSES AU Plotkin, A.S. AU Kuznetsov, E.D. AU Starodubov, K.V. AU Gromov, Y.Y. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov