А.К. Kanaev – Dr.Sc. (Eng.), Professor,

Military Communication Academy named after Marshal of the Soviet Union S.M. Budenny of the Ministry of Defense  of the Russian Federation (St. Petersburg)

E-mail: kanaevak@mail.ru

А.N. Ivanin – Adjunct,

Military Communication Academy named after Marshal of the Soviet Union S.M. Budenny of the Ministry of Defense  of the Russian Federation (St. Petersburg)

E-mail: andreiivanin@gmail.com

М.А. Kolbasov – Officer,

Main Communications Department of the Russian Federation Armed Forces (Moscow)

Continuous improvement of modern weapons, the integration of information and the armed struggle, and in particular, the use of de structive technologies of computer and network attacks, as the variety of information weapons, without allowing the destruction of  infrastructure has a negative impact on both indicators of the ability of information to preserve its basic properties, such as confiden tiality, integrity and availability, and requirements for the communication system, and in particular, on the stability of the functioning  of transport communication networks for special purposes (TCNSP), leads to the need to obtain functionality clearly identifying the  performance of TCNSP given probability-time characteristics (PTC) of the network and computer attacks. Based on the method of  topological transformation of stochastic networks and GERT procedure, the model of the process of functioning of the transport  communication network of special purpose in the conditions of implementation of computer attacks on the level of telecommunication  services protection aimed at gaining access to the synchronous transport modules, streams of plesiochronous digital hierarchy and  ethernet frames is developed. Probabilistic-temporal characteristics are obtained that allow to investigate the influence of the pa rameters of the intruder's input actions on the performance of the network, expressed in the time spent on overcoming the corre sponding measurements of protection of telecommunication services. The probabilistic-temporal characteristics of special-purpose  transport communication network are determined under the conditions of uncertainly of the initial data for modeling, taking into ac count hypotheses on the laws of the distribution of time and the probabilities of overcoming the protection measurements using sta tistical testing method.

1. Bazovaya model' ugroz bezopasnosti personal'nykh dannykh pri ikh obrabotke v informatsionnykh sistemakh personal'nykh dannykh.  FSTEK Rossii. 2008. [in Russian]
2. Pritsker A.A.B. GERT: graphical evaluation and review technique. NASA. 1966.
3. Privalov A.A. Metod topologicheskogo preobrazovaniya stokhasticheskikh setey i ego ispol'zovanie dlya analiza sistem VMF. SPB.: VMA.  2001. [in Russian]
4. Kanaev A.K., Oparin E.V. Analiz ugroz bezopasnosti oborudovaniya seti taktovoy setevoy sinkhronizatsii. Materialy Mezhdunar. nauch.  konf., posvyashch. 15-letiyu Sankt-Peterburgskoy nauchnoy organizatsii «Arkticheskaya mezhdunarodnaya akademiya». 2019.  S. 135–142. [in Russian]
5. X.805. Security architecture for systems, providing end-to-end communications. Zheneva. 2004.
6. Kotsynyak M.A., Osadchiy A.I., Kotsynyak M.M., Lauta O.S., Dement'ev V.E., Vasyukov D.Yu. Obespechenie ustoychivosti informat sionno-telekommunikatsionnykh setey v usloviyakh informatsionnogo protivoborstva. SPb.: LO TsNIIS. 2014. [in Russian]
7. Korn G., Korn M. Spravochnik po matematike dlya nauchnykh rabotnikov i inzhenerov. M.: Nauka. 1978. [in Russian]
8. Taraskin A.F. Statisticheskoe modelirovanie i metod Monte–Karlo: Ucheb. posobie. Samara. 1997. [in Russian]
9. Boev V.D., Kondrashov Yu.V. Modelirovanie i proektirovanie sistem: Uchebnik. SPb.: VAS. 2016. [in Russian]