%0 Journal Article %A Nazarov, A. N. %D 2010 %I Begell House %K information security, next generation network, information-protection function, logical-and-probabilistic model %N 16 %P 1453-1463 %R 10.1615/TelecomRadEng.v69.i16.60 %T LOGICAL-AND-PROBABILISTIC MODELS FOR ESTIMATING THE LEVEL OF INFORMATION SECURITY OF MODERN INFORMATION AND COMMUNICATION NETWORKS %U https://www.dl.begellhouse.com/journals/0632a9d54950b268,4bfbdc2c196186e3,435960d72f2715db.html %V 69 %X The condition of achieving the allowed facility-protection level against attacks via information networks is formulated. Logical-and-probabilistic models for estimating the information network facility protection conditioned by irreversible, invariant, causal relations between all information-protection functions are developed. %8 2011-02-10