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Документ Rationale for improving authentication protocols in the conditions of postquantum cryptography(Національний авіаційний університет, 2024) Havrylova, Alla; Aksonova, Iryna; Khokhlachova, Yuliia; Milevska, Tetiana; Dunaiev, SergiiThe paper studies the relevance of the issues of encrypting confidential data for their transmission over unsecured channels of information and communication networks. An analysis of encrypted information exchange on the Internet based on the Google service was carried out in terms of the volume of encrypted web traffic. It is concluded that the difference in traffic volumes between countries is due to the popularity of the types of devices used, the geographic access infrastructure, as well as the availability of software that provides modern types of encryptions. The role of the HTTPS protocol in ensuring the security of working with resources on the Internet is substantiated. The NIST security requirements for modern information and communication systems in the post-quantum period are analyzed. It is determined that within a short period of time the power of computing devices increases exponentially, which entails an increase in the implementation of both already known and new attacks on cryptographic algorithms that ensure the strength of security services in networks. Based on the results of this study, the results of a comparative analysis of the complexity of classical and quantum algorithms were demonstrated. The classification of special attacks was considered according to the signs of influence on computing processes, according to access to systems and means, as well as according to the specifics of the attacks themselves. Solutions submitted for participation in the NIST competition for the definition of security standards through electronic digital signature mechanisms, encryption algorithms and key encapsulation are analyzed. The results of the analysis are presented in the form of a scheme of security and stability of the proposed protocols and algorithms. It is recommended to use TLS protocols to ensure the integrity and authenticity of users when establishing communication sessions with websites. A scheme of the process of authenticated encryption and authentication of an encrypted message transmitted over a TLS connection has been developed. A process scheme has been developed for authentication encryption and decryption of information when establishing a communication session in TLS protocols. A comparative analysis of the characteristics of the TLS 1.3 and TLS 1.2 protocols was carried out.Документ Modeling of security systems for critical infrastructure facilities(PC Technology Center, 2022) Yevseiev, Serhii; Hryshchuk, Ruslan; Molodetska, Kateryna; Nazarkevych, Mariia; Hrytsyk, Volodymyr; Milov, Oleksandr; Korol, Olha; Milevskyi, Stanislav; Korolev, Roman; Pohasii, Serhii; Tkachov, Andrii; Melenti, Yevgen; Lavrut, Oleksandr; Havrylova, Alla; Herasуmov, Serhii; Holotaistrova, Halyna; Avramenko, Dmytro; Vozniak, Roman; Voitko, Oleksandr; Yerhidzei, Kseniia; Mykus, Serhii; Pribyliev, Yurii; Akhiiezer, Olena; Shyshkin, Mykhailo; Opirskyy, Ivan; Harasymchuk, Oleh; Mykhaylova, Olha; Nakonechnyy, Yuriy; Stakhiv, Marta; Tomashevsky, BogdanThe development of Industry 4.0 technologies is based on the rapid growth of the computing capabilities of mobile wireless technologies, which has made it possible to significantly expand the range of digital services and form a conglomeration of socio-cyber-physical systems and smart technologies. The First Section discusses the issues of building security systems based on the proposed Concept of multi-contour security systems, taking into account the hybridity and synergy of modern targeted cyber-attacks, their integration with social engineering methods. This approach not only increases the level of security, but also forms an objective approach to the use of post-quantum security mechanisms based on the proposed Lotka-Volterra models. The Second Section analyzes the features of the functioning of social Internet services and establishes their role in ensuring the information security of the state. An approach is proposed to identify signs of threats in the text content of social Internet services, which will allow to quickly respond to changing situations and effectively counteract such threats. A classifier of information security profiles of users of social Internet services has been developed to assess the level of their danger as potential participants in disinformation campaigns. A method for identifying and evaluating the information and psychological impact on user communities in services is proposed. Models of conflict interaction of user groups in social Internet services are considered on the example of civil movements. To effectively counter threats to information security of the state, it is proposed to use the concept of synergistic user interaction and self-organization processes in a virtual community. Particular attention is paid to countering the manipulation of public opinion in the decision-making process by users of social Internet services. The Third Section proposes a biometric security system that works to authenticate users based on a comparison of their fingerprints and certain templates stored in a biometric database. A method for determining the contour based on the passage of a curve and the filtering function of contour lines has been developed. The stage of skeletal identification is analyzed in detail. The Ateb-Gabor method with wave thinning has been developed. The performance of skeletal algorithms such as the Zhang-Suen thinning algorithm, the Hilditch algorithm, and the Ateb-Gabor method with wave decimation is analyzed. The presented results of experiments with biometric fingerprints based on the NIST Special Database 302 database showed the effectiveness of the proposed method. The software and firmware were developed using the Arduino Nano.Документ Justification of directions for improving authentication protocols in information and communication systems(Національний авіаційний університет, 2023) Havrylova, Alla; Khokhlachova, Yuliia; Tkachov, Andrii; Voropay, Natalya; Khvostenko, VladyslavThe analysis of information about the conducted cyber-threats makes it possible to identify modern information security problems when transmitted through unprotected communication channels. When conducting such an analysis, various components of the methods of implementing cyber threats are considered, but in this paper, it is proposed to pay attention to the motivational component of the emergence of threats and the existing effective tools for countering them. Such a comprehensive approach will make it possible to predict various modes of cyberattacks that cybercriminals can use against certain systems and to prepare the necessary digital security systems for the implementation of future threats. The influence of the exponential growth of the capacities of computing devices on the growth of the possibilities of implementing attacks by cybercriminals on cryptographic algorithms was also revealed. In this regard, the work considered the possibilities of increasing the level of resistance to such interventions, which are ensured by the NIST requirements for stability and security in the conditions of the post-quantum period. To determine the level of security of data transmission over an insecure network with privacy, integrity and authentication, a comparative analysis of the capabilities of information transmission protocols was conducted. The results of the analysis are presented in the form of a scheme of security and stability of protocols and algorithms that made it to the finals of the NIST competition. To ensure the integrity and authenticity of users when establishing communication sessions with websites, it is recommended to use TLS protocols. A scheme of the process of authenticated encryption and verification ofthe authenticity of an encrypted message transmitted using a TLS connection has been developed. The process diagram of authentication encryption and decryption of information when establishing a communication session in TLS protocols has been developed. A comparative analysis of different versions of TLS protocols was carried out.Документ Improved umac algorithm with crypto-code mceliece's scheme(Premier Publishing s.r.o., Austria, 2020) Yevseiev, S. P.; Havrylova, AllaThe article discusses the mathematical model of the mini-version of the UMAC hashing algorithm, using various cryptoalgorithms as a pseudo-random substrate when generating key data, presents the results of studies of the considered mini-versions. A new approach is proposed to ensure the cryptographic stability of this hashing algorithm based on Mac-Elis crypto-code constructions on modified elliptic codes. This approach will provide the required level of cryptographic security in post-quantum cryptography.