Analiza QoS în baza GSPN Fuzzy a apărării prin mutarea ţintelor de atac a reţelelor de calculatoare

Abstract

Moving target defense (MTD) is a novel way to alter the asymmetric situation of attacks of computer networks (CN), and a lot of MTD studies have been carried out recently. However, relevant performance modeling and analysis for the defense mechanism of CN with the MTD technology is still absent. In this paper, we introduced a model of fuzzy generalized stochastic Petri (FGSPN), under which it is carried out QoS analysis of Web server defense process with uncertain parameters due to uncontrollable factors using typical kinds of MTD techniques. We also take a case study to describe the usage of the FGSPN model to show how it can be applied to the proposed approach, which better represents both dimensions of uncertainty, stochastic variability and inaccuracy in the shaping of CN with MTD.