Asymptotic methods for assessing information security indicators in computing systems with multilevel protection systems

The issues of using analytical models for assessing the security of information technologies from unauthorized access and maintaining the confidentiality of information were considered. Based on the methods of recovery theory and approximation of the functions used by one-parameter distributions, a mathematical apparatus of asymptotic theory has been developed for assessing the security of information technologies with multi-level protection systems, which allows quickly investigate the effectiveness of various protection frontiers and select multi-level protection systems that meet customer requirements. The obtained analytical relationships have found practical application in the operational assessment of probabilistic indicators of information security from unauthorized access in computing systems for various purposes.