TY JOUR TI Ensuring Information Security for Clocked Network Synchronization System on the Basis of the System Entropy Analysis KW Telecommunication system KW clocked network synchronization system KW differential entropy KW threat KW information security JO Proceedings of Petersburg Transport University AU Kanaev, A.K. AU Oparin, E.V. AU Oparina, E.V. PY 2022 IS 19 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"