https://repository.hneu.edu.ua/handle/123456789/176 2026-06-27T00:08:51Z 2026-06-27T00:08:51Z Poliakov A. https://repository.hneu.edu.ua/handle/123456789/40962 2026-06-22T10:32:44Z 2026-01-01T00:00:00Z

Назва: Features of token-based authentication and authorization in a web-oriented microservice architecture Автори: Poliakov A. Короткий огляд (реферат): In the context of the ongoing digital transformation of the economy, web-oriented information systems have become a foundational infrastructure for e-commerce, financial services, government e-services, and corporate information resources. The widespread adoption of distributed architectures, particularly microservices, along with the use of cloud and containerized platforms, increases the need for reliable authentication of both users and services while maintaining acceptable performance. Under these conditions, authentication mechanisms are no longer merely a local security component; they substantially affect scalability, fault tolerance, and the efficiency of computing resource utilization. One of the de facto standards for token-based authentication is the JSON Web Token (JWT), which is widely used across the OAuth 2.0 and OpenID Connect (OIDC) ecosystems, as well as in proprietary solutions for securing RESTful APIs and microservice interactions. Standards and normative documents (e.g., RFC 7519, RFC 7518, RFC 8032) define the token format and the permissible signing algorithms. At the same time, in practical web-application design, the choice of a specific cryptographic algorithm and authentication scheme is often made empirically, without relying on formalized models or quantitative criteria to assess the impact of this choice on latency, throughput, and system resource consumption. As a result, designers may adopt either overly “heavy” algorithms that significantly increase latency under high load, or overly “lightweight” mechanisms that do not provide an adequate cryptographic level of protection—an issue that is particularly critical for microservice architectures, where tokens may be verified repeatedly across a chain of services. An analysis of scientific publications and standards reveals that much of the research focuses on the security of authorization and authentication protocols, the stability of access schemes, and the construction of architectural templates for using JSON Web Tokens (JWT) in web services. However, the issue of comprehensively quantifying the impact of cryptographic algorithm choices for JWT token signing and specific authentication schemes on the performance of web-oriented applications within various architectural approaches (e.g., monolith, SOA, and microservices) has not been sufficiently researched. This issue is usually considered only for specific technology stacks or load scenarios. Thus, there is a need to develop models, methods, and software tools that enable a comparative analysis of these mechanisms using uniform criteria and performance metrics.

2026-01-01T00:00:00Z Коцюба В. П. https://repository.hneu.edu.ua/handle/123456789/40922 2026-06-22T06:52:17Z 2026-01-01T00:00:00Z

Назва: Розрахунок пропускної спроможності та кіберзахист інформаційно-телекомунікаційної мережі доступу Автори: Коцюба В. П. Короткий огляд (реферат): У розділі досліджено методичні засади проєктування інформаційно-телекомунікаційної мережі доступу спеціального призначення. Розглянуто структуру показників її властивостей, порядок визначення коефіцієнта доступності за пропускною спроможністю, резерву інформаційних можливостей, продуктивності окремих сегментів і потрібної швидкості передавання даних з урахуванням мережного навантаження. Наведено вимоги до телекомунікаційних послуг, цифрових потоків і вокодерів, охарактеризовано архітектури та обладнання мереж доступу. Систематизовано організаційні й технічні заходи кіберзахисту, зокрема криптографічний та антивірусний захист, міжмережне екранування, VPN, AAA, SIEM, IDS/IPS і DLP. Обґрунтовано комплексний підхід до забезпечення доступності, стійкості та захищеності мережі.

2026-01-01T00:00:00Z Ushakova I. Frolov O. Znakhur L. Znakhur S. Chyrva Yu. https://repository.hneu.edu.ua/handle/123456789/40338 2026-06-08T07:58:36Z 2026-01-01T00:00:00Z

Назва: Theoretical and Applied Aspects of Software Engineering : Architectural Solutions, Algorithmic Methods and Intelligent Systems Автори: Ushakova I.; Frolov O.; Znakhur L.; Znakhur S.; Chyrva Yu. Короткий огляд (реферат): The current theoretical and applied aspects of software engineering related to architectural solutions, algorithmic methods and intelligent systems are considered. The issue of building client architecture of modern web applications using microservice approaches, algorithmic aspects of geometric data processing regarding equal-chord decomposition of parametric curves, the use of artificial intelligence in agile project management, the features of modern recommendation systems and the possibilities of using chatbots in the activities of enterprises are highlighted. For scientists, teachers, graduate students and specialists in the field of information technology.

2026-01-01T00:00:00Z Tokariev V. V. https://repository.hneu.edu.ua/handle/123456789/40318 2026-06-04T18:43:18Z 2026-01-01T00:00:00Z

Назва: Methods and algorithms for multilevel control of mobile rehabilitation platforms Автори: Tokariev V. V. Короткий огляд (реферат): This text explores the development of advanced robotic wheelchairs for people with disabilities, focusing on methods for multilevel autonomous control and multimodal human-machine interfaces. To simplify the interaction process and bypass the limitations of traditional manual controls like joysticks, the implementation of delegated autonomy is proposed. This approach reduces user input to high-level scenarios, enabling the use of slow neurointerfaces (EEG, FNIRS). Furthermore, the monograph presents a technical and comparative analysis of electromechanical wheelchairs from major global manufacturers, including Invacare, Sunrise Medical, Permobil, and Pride Mobility. It details their digital integration, custom tracking platforms, IoT diagnostics, and advanced configurations.

2026-01-01T00:00:00Z