Assessment of Key Infrastructure Resilience in Distributed Ledger Technology Systems to Destructive Impacts

The article addresses the issues related to the need to assess the stability of key infrastructure in systems based on distributed ledger technology against destructive influences. As a method for solving the problem, we propose the use of a mathematical model of stability based on fuzzy logic, built by taking into account the criteria of key infrastructure stability in such systems, categorized by criticality using the method of direct expert evaluation, as well as a classification of potentially destructive influences affecting stability. The results of the research allow for an assessment of the stability of key infrastructure in systems built on distributed ledger technology, enabling the identification of weaknesses in existing information systems, and by eliminating them, increasing the stability of such systems against destructive influences.