Cybersecurity: Education, Science, Technique

Journal Information
EISSN : 26634023
Current Publisher: Borys Grinchenko Kyiv University (10.28925)
Total articles ≅ 39
Filter:

Latest articles in this journal

Cybersecurity: Education, Science, Technique; doi:10.28925/2663-4023

Yanina Roy, Nataliia Mazur, Olena Riabchun
Cybersecurity: Education, Science, Technique, Volume 3, pp 97-103; doi:10.28925/2663-4023.2019.3.97103

Svitlana Shevchenko, Pavlo Skladannyi, Maksym Martseniuk
Cybersecurity: Education, Science, Technique, Volume 4, pp 62-71; doi:10.28925/2663-4023.2019.4.6271

Abstract:The article is devoted to the problem of information security, namely the study of the characteristics of antivirus programs which are standardized in Ukraine. The study used statistical methods to analyze the characteristics of antivirus software and comparative methods of comparing the various types of such programs. Relying on researches in scientific literature, the main threats to information security in the field of information technology were analyzed. The emphasis is placed on the fact that antivirus software is the most effective protection against malicious software (malware). The basic methods of work of the antivirus – signature and heuristic – are described. The list of standardized in Ukraine antivirus programs is determined. The study was based on the quantitative and qualitative results which while testing had obtained by the independent testing laboratory AV-Comparatives (Austria), the independent Virus Bulletin (VB) laboratory for testing and certification in the field of security, the Center for antivirus protection information of the State Special Communication Service of Ukraine. The comparative analysis of the main characteristics of antivirus programs was carried out, namely: antivirus and anti-spyware; anti-phishing; anti-rootkit protection against exploits; Intrusion Prevention System; Real-time protection; parental control; host-based firewall; antispam; protection against network attacks; home network protection; anti-theft; password management.
Tyhanskyi Mykhailo, Partyka Andrii, Krysko Rostyslaw
Cybersecurity: Education, Science, Technique, Volume 4, pp 32-43; doi:10.28925/2663-4023.2019.4.3243

Abstract:Using of traditional logic elements in digital electronics has ensured the development of a wide range of electronic devices for many years. In parallel, research and development of logical elements are carried out on the basis of other non-traditional physical phenomena or effects, in particular logic elements based on the phenomenon of superconductivity, the prospect of which is the use of very small energy consumption and ultrahigh performance. For superconducting logic elements, using various Josephson cryoelectronic structures, known as Josephson cryotrons, based on the stationary and non-stationary effects of Josephson. On the basis of the Josephson cryotrons, one can create Josephson elements of computer memory, and Josephson elements of digital logic. The main requirements for the Josephson cryotrons are a stable operating mode and high speed or short switching time. Information about the mode of operation and the speed give us the transition characteristics of the cryotrons - the time dependence of the voltage on the cryotron while changing its logical state, which can be obtained either experimentally, or theoretically. This work aims at a search for new ways of increasing the switching rate of digital logical operators by employing physical structures other than the traditional semiconductor-based schemes. We propose the principles of designing digital logical operators based on Josephson cryotrons, whose operation utilizes the stationary and dynamical Josephson effects, and describe the operational principles of the logical elements “AND” and “OR” bases on tunneling Josephson junctions “superconductor-insulator-superconductor”. Our proposed mathematical models for the commutation processes in such logical elements allowed us to calculate their transition characteristics during the switching and to determine the main parameters in such models. It was shown that the logical elements “AND” and “OR” can be implemented on individual cryotrons and that their logical state can be controlled by input signals in a form of current pulses. Such logical elements meet all the requirements for digital logical elements and have switching time of about 2-3 ps, which indicates their significantly increased switching rate.
Anton Kulikovskyi
Cybersecurity: Education, Science, Technique, Volume 4, pp 85-89; doi:10.28925/2663-4023.2019.4.8589

Abstract:The article describes the use of information and telecommunication systems in public and private institutions and disadvantages for the construction of information and telecommunication systems for decentralization. The analysis of recent researches and publications on the subject of the block is conducted. The paper describes the principle of the technology, the block and the ways in which a block protects itself from attempting to make unauthorized changes or deletion of data. The expediency and perspectives of using information security technologies from the point of view of the triad of information security services as confidentiality, integrity and accessibility are considered. The rapid development of information technology is expected to rapidly increase and increase, and also threatens the information and telecommunication systems that have most of these systems. A promising direction for the construction of information and telecommunication systems is the use of decentralization. Therefore, it is important to analyze the use of Blockchain technology for the construction of decentralized information and telecommunication systems in terms of information security.
Mariya Nazarkevych, Yaroslav Voznyi, Oksana Troyan
Cybersecurity: Education, Science, Technique, Volume 4, pp 72-84; doi:10.28925/2663-4023.2019.4.7284

Abstract:Image filtering attempts to achieve greater resolution. There is a large number of filters that allows you to bring images with clear borders. In addition, noise is present when digitizing images. One of the most common types of filtering is the Gabor filter. It allows you to restore the image with the contour allocation at a certain frequency. Its core looks like elements of the Fourier basis, which is multiplied by Gaussian. The widespread use of Gabor filters for filtration is due to the fact that it gives a strong response at those points of the image where there is a component with local features of frequency in space and orientation. It is proposed to use the Ateb-Gabor filter, which greatly expands the well-known Gabor filter. The Ateb-Gabor filter combines all the properties of a harmonic function, which is multiplied by Gaussian. As a harmonic function, it is proposed to use the Ateb-functions that greatly extend the trigonometric effect. The developed filter is applied to the images. The Ateb-Gabor filter depends on the frequency and directions of the quasiperiodic structure of the image. Usually, to simplify the task, the average image frequency is calculated. It is unchanged at every point. Filtration of images is based on the generalized Ateb-Gabor filter. Influence of filtering parameters on images is investigated. The properties of periodic Ateb-functions are investigated. The value of the period from which the filtering results depend on is calculated. Ateb-Gabor filtering allowed for wider results than the classic Gabor filter. The one-dimensional Gabor filter based on the Ateb-functions gives the possibility to obtain more lenient or more convex forms of function at the maximum described in this study. In this way, filtration with a large spectrum of curves can be realized. This provides quick identification, since a more versatile kind of filtering has been developed.
Andrii Bondarchuk, Zoreslava Brzhevska, Nadiia Dovzhenko, Anatoliy Makarenko, Valentin Sobchuk
Cybersecurity: Education, Science, Technique, Volume 4, pp 54-61; doi:10.28925/2663-4023.2019.4.5461

Abstract:Sensor networks are one of the most relevant and promising technologies for wide application in various spheres of human life. Relatively inexpensive components, namely, sensor nodes are combined into one network. Due to the use of a significant number of nodes, in addition to the overall impact on functionality, this also leads to a decrease in the reliability of the network. Wireless connectivity has a number of limitations when it comes to the direct connection to the public communications network or the next-generation networks with optical components. For example, the relatively small distance to send information between constituent components. It follows next idea -sooner or later there will be the denial of nodes, which will lead to the isolation of other sensors. To avoid this, or at least to ensure the network connectivity during a failover, more nodes on a separate site need to be used. Also, due to the presence of connectivity between touch nodes, there are a number of general features that should be taken into account when designing such a network and deploying it in real-world conditions. One of these tasks is to ensure the accuracy of packets of information’s transfer between the sensor nodes, as violations of its integrity, quality, reliability and safety can lead to serious consequences. Due to insignificant volumes of memory, sensor nodes are not able to capture data about all nodes, their physical addresses, metrics for the fastest transmission of information packets. In view of this, the number of requests for the same node may exceed the critical rate at a certain time. However, there may also be a situation where a node that has not been earlier tested can be connected to the network. In this case, the question of the authenticity of the data that will circulate in the network from a similar, hidden node to others is sharply raised. Therefore, it is necessary to study the existing and the introduction of new algorithms for the transmission of information in the presence of hidden nodes in wireless sensory networks at the present stage of development.
Vadym Abramov
Cybersecurity: Education, Science, Technique, Volume 4, pp 24-31; doi:10.28925/2663-4023.2019.4.2431

Abstract:An overview of computer network simulation tools is being conducted in order to create a methodology for studying the relevant disciplines in higher school. The analysis of positive and negative properties of virtual and physical means of simulation of computer networks is carried out. It is concluded that the best for educational institutions are combined models that are quite budget and allow to compile and study practically unlimited topologies of networks, as well as gain experience with real physical equipment. The analysis of virtual simulation tools shows that they contain the means of interaction of the virtual network with external real equipment. This makes it possible to create a composite platform in which part of the model is virtual and the part is actually physical. This allows budget funds to quickly create models of large numbers of networks and allows students to get more information on working with hardware in conditions close to real industrial networks. The platform of the combined modeling is very convenient to use for researching systems on the Internet of Things. It helps in designing to simulate and explore real-world control systems for a large number of virtual "Smart Things" that are presented in the new Cisco Packet Tracer 7.0 simulator. These virtual things can be controlled from external means of the real world through laptops, tablets, etc. Create realistic control programs and related software for this and adjust them in conditions of maximum approximation to reality. New modeling technologies are the basis for the emergence of new teaching methods that are used at the Kiev University of B. Grinchenko.
Yurii I. Khlaponin, Svitlana V. Kondakova, Yevheniia Ye. Shabala, Liliia P. Yurchuk, Pavlo S. Demianchuk
Cybersecurity: Education, Science, Technique, Volume 4, pp 6-13; doi:10.28925/2663-4023.2019.4.613

Abstract:The article is devoted to the study of trends in cybercrime, which is a threat to the country's information security. The place and role of cybersecurity in the system of national security are determined. The state of the system of protection against cyber attacks in the developed countries of the world, such as France, Japan, China, South Korea and the United Kingdom, was analyzed. The main shortcomings and perspectives of protection of cyberspace are revealed. The use of modern information technologies in state structures, as well as in society in general, proposes solving information security problems as one of the main ones. The economy, logistics and security of the country increasingly depend on the technical infrastructure and its security. To improve the effectiveness of the fight against cybercrime, developed countries have long started the appropriate work needed to create their own cyber security strategy. Incidents in the field of cybersecurity affect the lives of consumers information and many other services and cyber attacks aimed at various objects of infrastructure of electronic communications systems or technological processes management. Modern world trends in the development of cybercrime and the strengthening of cyber attacks indicate an increase in the value of combating it for the further development of society, which in turn predetermines the assignment of certain groups of social relations of the cybersphere to the competence of legal regulation. The current situation with cybercrime requires constant improvement of methods the fight against cybercrime, the development of information systems and methods aimed at ensuring the cyber security of the country. Necessary tasks are the development of a national strategy on cybersecurity, which will include tactical and strategic priorities and tasks in this area for state bodies. So, the issue of cyberspace security, the fight against cybercrime is relevant both at the international level and at the level of the individual country, and therefore needs further consideration.
Ruslan Hryshchuk, Olga Hryshchuk
Cybersecurity: Education, Science, Technique, Volume 4, pp 14-23; doi:10.28925/2663-4023.2019.4.1423

Abstract:The problem of cyber security in the era of the creation of quantum computers is of particular relevance. Specifically, the data are at risk which are confidential or whose value depends on their integrity. In order to find a way out of the situation which happened in the article, a thorough comprehensive analysis of the current state of the known cryptosystems was carried out, based on a systematic approach. In particular, the advantages and disadvantages of models of cryptosystems which were created on the basis of cognitive cryptography are stated, the theory of dynamic chaos, constructive, quantum and post-quantum cryptography. The issue of cryptosystem models based on DNA algorithms is also raised, proxy cryptosystem models, attribute cryptosystems, packet and non-commutative cryptography. As a result of the research, it was found out that the greatest interest in terms of security today is integral cryptography. The lack of scientifically justified models of cryptosystems based on integrated cryptography has led to the development of one of these models. The model is developed on the basis of the proposed concept, which is based on the main principals of integral cryptography. As a result of the research, a generalized model of the cryptosystem was developed, which in the future is proposed to be called the cryptosystem of Fredholm. It is shown that the essence of the encryption and decryption procedures is reduced to solving the direct and inverse problem, which is described by the integral equation of Fredholm of the first-order. The article emphasizes in particular that compared to the known models of cryptosystems, the proposed model has a number of significant advantages. The first advantage is the guaranteed theoretical and practical cryptostability, which is due to the incorrectness of the inverse decryption problem. The second advantage of the proposed model is the absence of effective algorithms for cryptanalysis due to the lack of prevalence of integral cryptography in modern cyber security systems. The developed model serves the theoretical basis for the further development of appropriate cryptographic algorithms and research of their security parameters.