TESTING OF REGULAR EXPRESSION APPARATUS IN ANALYSIS OF FUNCTIONAL PROFILE OF PROTECTION

Abstract

The article analyzes the possibilities of using regular expressions to build a functional security profile (FSP) in information systems. The methodology consists in the use of regular expressions, such as the construction of syntax trees, the definition of partial and internal patterns, as well as the development of algorithms for searching for substrings in the text. A functional security profile is considered as a string sequence where each character represents a specific security element. Using regular expressions, it is possible to automate the process of checking for completeness, consistency, and identification of security features in information systems. The purpose of this paper is to demonstrate regular expressions as an effective tool for analyzing security features, as they allow standardizing and optimizing the process of assessing the security of information systems. Practical examples of the use of syntactic trees, which provide effective detection of prefixes, substrings and other string structures, were considered. The methodology for searching for partial patterns in text data is described, which is the basis for automated decision-making systems during the state examination of information systems. Conclusions. The scientific novelty lies in the use of the obtained results to create software that supports decision-making on the assessment of the functional security profile, which significantly reduces the analysis time and increases the efficiency of the process. The work emphasizes the importance of using regular expressions in modern methods of ensuring information security.