Юджесой Асіл Йігіт2023-08-282023-08-282023Юджесой А. Й. Методи, засоби та технології забезпечення стійкості та безпеки критичної інформаційної інфраструктури : пояснювальна записка до кваліфікаційної роботи здобувача вищої освіти на другому (магістерському) рівні, спеціальність 125 Кібербезпека / А. Й. Юджесой ; М-во освіти і науки України, Харків. нац. ун-т радіоелектроніки. – Харків, 2023. – 59 с.https://openarchive.nure.ua/handle/document/23999The research object is the process of secure and fault-tolerant routing in critical information infrastructure. The research subject is the methods, tools, and technologies for providing the resilience and security of critical information infrastructure. The work aims to analyze models and methods of secure and fault-tolerant routing in critical information infrastructure. Research methods are analytical modeling, simulation, formalization, and comparison. An analysis of methods, tools, and technologies was carried out to ensure the resilience and security of Critical Information Infrastructure. The main security requirements for systems and networks as objects of Critical Information Infrastructures are defined. It was noted that for the sustainable functioning of such objects, it is necessary to develop complex solutions considering security, reliability, redundancy, and survivability technologies. A mathematical model of fault-tolerant and secure routing of fragmented confidential messages using composite paths in networks of critical information infrastructures is chosen. The simulation results of the selected model were analyzed, and its use was justified.enCritical InfrastructureSecurityFault-ToleranceRoutingCompromise ProbabilityModelingOther