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Information × Registration Number 0213U005912, 0112U004916 , R & D reports Title Develop a methodology for assessing the level of functional safety of computer networks popup.stage_title Head Mjasichev O. A., Registration Date 06-08-2013 Organization Khmelnytskiy National University popup.description2 The object of study - the functioning of the information system under attack illegal users as a single-channel version, and an n-channel dialogue in the local and global information environments. The purpose of research is to provide a sustainable process of computer systems and networks in attacks by anticipating situations that develop in the course of illegal intrusion into the information field in time, and to adjust the parameters of the system. Methods of research: мethods of probability theory, reliability theory and mathematical modeling, system analysis, theory of algorithms and application programming. Experimental studies based on modern methods of programming, design and prototyping. In the course of the work: built differential Markov process model of information system (IS) in terms of attacks illegal users in a single-channel version of the dialogue; defined by the equation of probability functions of the states of the process (state protection information system (SPIS)) in time and on a set of these functions, and the main indicator of the effectiveness of the protection of information; conducted a comprehensive study of the obtained probability functions of the states of the system of protection of information systems in time; developed a method of applying the main indicator of the reliability of protection in the face of uncertainty in the parameter; summarizes the results obtained in case SPIS n-channel dialogue communication with the illegal users; developed a model of the transient SPIS; practically verified the theoretical results. The results of research: received method of estimating the level of functional information system security; designed and implemented algorithms and software prediction of the functioning of the IC process for illegal incursions into its information field in time. The study was conducted in the open joint-stock company "TEMP." The results can be used by enterprises and institutions whose activities are connected with the use of modern information systems. Product Description popup.authors Джулій Андрій Володимирович Мясіщев Олександр Анатолієвич Чешун Віктор Миколайович popup.nrat_date 2020-04-02 Close