FUNCTIONAL STABILITY OF A DISTRIBUTED REGISTRY IN THE CONTEXT OF A QUANTUM THREAT

The purpose of the research: to propose an approach to the formal analysis of the functional stability of distributed ledger systems for critical applications under conditions of quantum threat. Research methods: object-oriented analysis and synthesis of complex systems, system analysis, theory of modular cluster networks, graph theory, matrix theory, mathematical logic. Research results: the influence of architecture security and access policy on the functional stability of a distributed registry in the context of a quantum threat is shown, the concept and formulation of the problem of security analysis of a distributed registry architecture in terms of the theory of modular cluster networks, an approach to the synthesis of architecture with proven security properties is proposed. Scientific novelty: application of the theory of modular cluster networks to the analysis of the functional stability of distributed registry systems in the aspect of security, taking into account the influence of the quantum threat.