TY CONF TI KEY INFRASTRUCTURE AND PRINCIPLES OF ITS OPERATION IN DISTRIBUTED LEDGER TECHNOLOGY SYSTEMS KW distributed ledger technology KW key infrastructure KW key management systems KW resistance to destructive influences JO CHALLENGING ISSUES IN SYSTEMS MODELING AND PROCESSES AU Plotkin, A.S. 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