Biblio

In this paper1 is proposed a graph model, designed to solve security challenges of information systems (IS). The model allows to describe information systems at two levels. The first is the transport layer, represented by the graph, and the second is functional level, represented by the semantic network. Proposed model uses "subject-object" terms to establish a security policy. Based on the proposed model, one can define information system security features location, and choose their deployment in the best way. In addition, it is possible to observe data access control security features inadequacy and calculate security value for the each IS node. Novelty of this paper is that one can get numerical evaluation of IS security according to its nodes communications and network structure.