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The purpose of the article: to identify and systematize the areas and problems of information security that are solved using visual analytics methods, as well as analysis of the applied data visualization models and their properties that affect the perception of data by the operator.Research method: a systematic analysis of the application of visual analytics methods for solving information security problems. Analysis of relevant papers in the field of information security and data visualization. The objects of research are: theoretical and practical solutions to information security problems through visual analysis. Visual analytics in the article is considered from several sides: from the point of view of the areas of application of visual analysis methods in information security, from the point of view of the tasks solved by the security analyst, from the point of view of the visualization models used and the data structures used, as well as from the point of view of the properties of data visualization models.The result: classification of visualization models is proposed, which differs from analogs in that it is based on the analysis of areas and tasks of information security and comparison of visualization models to them.The scope of the proposed approach is the creation of visualization models that can be used to increase the efficiency of operator interaction with information security applications. The proposed article will be useful both for specialists who develop information security systems and for students studying in the direction of training “Information Security”.
Keywords:  information security, visual analytics, data analysis, support and decision making, visualization model, data visualization.

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The aim of the research is to develop a structural and functional model of cyberspace as an element of its mathematical (analytical and simulation) model, which allows us to study the properties of cyberspace. Formation of the terminological basis of the research area.Research methods: theory of complex systems, synergetics.Research result: a structural and functional model has been developed that describes the process of forming information services based on cyberspace resources. In relation to cyberspace, the concept of “symbiont” is introduced as a universal concept that allows describing any element of cyberspace and its resources. The following terms are defined: cyberspace, information, computing and telecommunications resource. In addition, the formalization of resources and information services provided by cyberspace is presented. An example of forming an information service based on cyberspace resources is shown.
Keywords: information services, information resources, cyberspace resources, information service formation.

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Purpose: increasing the cryptographic strength level of the pseudo-random sequence generation function based on the «Kuznechik» encryption algorithm.Research methods: methods for constructing pseudo-random sequence generators using a strong cryptographic algorithm as a generation function in accordance with the recommendations of NIST SP 800-90. Methods of probability theory and mathematical statistics (statistical hypothesis testing, Pearson’s criterion), methods for estimating the entropy of a random process.Results: а method for development of the main component of the deterministic generator - the function for generating pseudo-random sequences based on the «Kuznechik» encryption algorithm (Russian encryption standard GOST R 34.12-2015) due to a number of the original algorithm modifications is proposed. Features of the algorithm allow to use it in a mode that combines the advantages of the well-known encryption modes of block ciphers (OFB and CTR encryption modes). A procedure for generating round keys and other modifications of the algorithm that increase its security while maintaining its performance have been developed and implemented. The generator operation was evaluated on the basis of the statistical properties of the output sequences (NIST SP 800-22 tests), Pearson’s χ2 criterion, and min-entropy (NIST 800-90B tests). According to the characteristics mentioned above, the proposed generation function is comparable with the reference version based on GOST 34.12-2015 «Kuznechik», but exceeds it in terms of security
Keywords: random bit generator, pseudo-random sequences, GOST R 34.12-2015 «Kuznechik», SP-network, Feistel network, Pearson’s criterion, min-entropy, NIST 800-90, NIST SP 800-22.

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Purpose: development of a methodology for automating the process of analyzing security threats in cyber-physical systems, which is based on the study and analysis of the system architecture and possible risks of threat implementation, as well as the capabilities of the intruder.
Method: the developed methodology is based on structuring information about the architectural features of cyber-physical systems. Structuring information and presenting it in the form of directories that are interconnected allows to determine the list of threats, vulnerabilities and attacks that are relevant to it based on structural and functional characteristics. When designing the database, an ontological approach was applied, which allows you to highlight concepts and their properties.
Results: methodological recommendations for analyzing the security of cyber-physical systems have been developed, based on the study and assessment of vulnerabilities and security threats. The analysis of the structural and functional characteristics of the cyber-physical system is carried out and the main features from the point of view of information security are highlighted. Integration of new methods for assessing risks, identifying current threats, and developing effective recommendations for cyber-physical systems made it possible to create a knowledge base about threats, attacks, vulnerabilities of CPS. New threats to CPS have been identified, which are associated with their specific properties: mobility, use of wireless networks, location outside the controlled area. The result of the study is a product presented in the form of a knowledge base that allows you to determine the degree of threat of a threat for a given structural and functional characteristics of a cyber-physical system. Implemented automatic updating of information about vulnerabilities from open databases.
Keywords: methodology, attacks, attack tools, structural and functional characteristics, threat base, ontology,
concepts, risks, damage.

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Research aim: analysis and assessment of the level of readiness of the requirements for the regulation of conflicts of interest contained in the current standards of the Russian Federation on information security and management systems, for compliance with national legislation, as well as their comparison with the requirements of ISO standards.Research method: a comprehensive analysis of regulating conflicts of interest problem was carried out the regulatory framework of the Russian Federation (273-FZ, Bank of Russia Ordinances No. 5511-U and standards for management systems and information security). The requirements contained in the national standards of the Russian Federation and international ISO standards are analyzed for their mutual correspondence. Results obtained: The research presents the comparison of the requirements of the federal law of the Russian Federation FZ-273 and standards for management systems and information security. Comparative table of requirements for resolving conflicts of interest is presented. The existing software of automated search and analysis of conflicts of interest are analyzed. It is proposed to use of modern automated tools for regulation of conflicts of interest in organizations.
Keywords: conflict of interest, federal law, information security, standard, GOST, ISO, corruption, Bank of Russia, software, conflict of interest analysis.

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The purpose of the article: the study of the roleand and meaningof cybersecurity at the present stage of world development as the main factor for ensuring national and international security of the 21st century.Research method: synthesis and scientific forecasting, peer review, comparative analysis of the cybersphere within the system approach.Results: the state and ways of developing cybersecurity of leading foreign countries on the example of the United States, the state and ways of developing cybersecurity and cybersecurity technology in the Russian Federation are presented with justification for discussion proposals on the disclosure of the term and the concept of “cybersecurity.”
Keywords: cloud computing, internet stuff, virtualization, cyberspace, infosphere, information security, functional stability, information warfare, monitoring, computer attack, crypto-system, information protection system, paradigm, eSIM technology.

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Purpose of the study: development of a method that allows detecting and identifying packets of the Tor network, including obfuscated packets on the local machine of the network user, by a Wireshark sniffer using the filter syntax based on the features of the Tor network packets characteristic of the TLS v1.2 and v1.3 encryption versions; studying the possibility of using the SSL Bump attack (decrypting https traffic on a virtual server using self-signed x.509 certificates) to overcome the obfuscation of Tor network packets.Method: software analysis of transmitted network packets, decomposition of the contents of data packets according to their size and belonging to encryption protocols, a comparative method in relation to different versions of the encryption protocol and resources, synthesis of filtering rules based on the syntax of the analyzer was used.Results: an applied method was developed that allows detecting and identifying packets of the Tor Network, including obfuscated packets on the local machine of the network user, by a Wireshark sniffer based on the filtering syntax based on the signs of encryption packets of the TLS v1.2 and v1.3 versions; data on the impossibility of using the SSL Bump attack to overcome the obfuscation of the Tor network was obtained.
Keywords: sniffer, TLS handshake, legal blocking of access, cybersecurity, deanonymization. 

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A method of ensuring the integrity of data transmitted over communication channels of VPNs of large-scale information systems functioning in the conditions of the destructive influence of the attacker is considered. The proposed method allows to recover data packets subjected to erasure and imitation.The purpose of the research is to increase the stability of data transmission over VPN communication channels by implementing the procedure for recovering erased IP-packets and increasing the level of imitation security of the transmitted data.Research methods: aggregation of methods of cryptographic control of data integrity and methods of redundant coding of data, application of methods of the theory of Markov random processes to determine the probability of providing satisfactory support for applications in conditions of destructive influence of an attacker with various parameters.Research results: analysis of the object of research - VPN of large-scale information systems was carried out. It leads to the conclusion about the need to protect data transmitted through such communication channels for the implementation of national strategies for economic development. A mathematical model of the functioning of a data transmission system over a VPN communication channel under the conditions of a destructive influence of an attacker is presented. A method is proposed to ensure the integrity of transmitted data based on an original scheme for sharing known solutions, generating a synergistic effect. The method allows recovering dmin-1 erased data packets.The proposed solution makes it possible to increase the stability and speed of data transmission over the communication channels of the network in the conditions of the destructive influence of the attacker and the imitation of data by the attacker.
Keywords: information security and protection, VPN, cryptographic insertion, packet erasure, error-correcting
coding, VPN protection against cyber threats, multipath routing, multidimensional route.

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