METHOD OF RATIONAL SYNTHESIS OF SUBSYSTEMS FOR CRYPTOGRAPHIC PROTECTION OF INFORMATION IN CRITICAL INFRASTRUCTURE NETWORKS

The article examines the state of development of the methodology for building information protection subsystems of information systems of critical infrastructure objects, and separately highlights the issue of creating complex protection for complex systems. It is noted that complex systems are characterized by the presence of a significant number of disparate elements, which are combined into a single system to achieve a certain goal; the existence of complex, sometimes contradictory relationships and influences; powerful information flows between component subsystems. The analysis of the characteristics of complex information systems, which negatively affect the construction of information protection subsystems, was carried out, and the relevance of solving the tasks of creating complex protection for such systems, especially within the framework of the construction of a network of situation centers, was determined. It is noted that the implementation of a well-designed cryptographic information protection subsystem (CIP), which can provide reliable protection of the confidentiality and integrity of the information processed in the system, contributes to solving a significant num