Персона: Вавренюк, Александр Борисович
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Институт интеллектуальных кибернетических систем
Цель ИИКС и стратегия развития - это подготовка кадров, способных противостоять современным угрозам и вызовам, обладающих знаниями и компетенциями в области кибернетики, информационной и финансовой безопасности для решения задач разработки базового программного обеспечения, повышения защищенности критически важных информационных систем и противодействия отмыванию денег, полученных преступным путем, и финансированию терроризма.
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Александр Борисович
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- ПубликацияОткрытый доступSynchronous Stream Encryption Using an Additional Channel to Set the Key(2021) Vavrenyuk, A. B.; Makarov, V. V.; Shurygin, V. A.; Вавренюк, Александр Борисович; Шурыгин, Виктор Александрович© 2020 Elsevier B.V.. All rights reserved.The article describes the possibility to refuse the direct transfer of the key from the sender to the recipient in the synchronous stream encryption scheme. We suggest creating a table of correspondence between the key information K, and the time of sending an email or phone call. The sender will have one instance of such a table, and the recipient will have another. The format of the key information in the simplest case includes the PRNG key itself, which determines the logic of operation of the PRNG nonlinear function, the code of the type of the used PRNG nonlinear function, and the PRNG design code. We offer 2 ways of interaction between the sender and the recipient of messages. Consider two possible options for encryption schemes: when the superposition of a sequence from the output of the PRNG on the input sequence is performed by the XOR operation, and when the encryption process is performed with a stochastic transformation of R, and the operation decryption operation backward stochastic transformation R-1. We present the scheme of one of the simplest possible variants for constructing the block R of the stochastic transformation.
- ПубликацияТолько метаданныеUsing a Neural Network to Convert a Radio Signal from an RTL-SDR Receiver to Text(2020) Vildyaeva, M. V.; Egorova, E. A.; Vavrenyuk, A. B.; Вавренюк, Александр Борисович© 2020 IEEE.Voice recognition technology is now becoming increasingly popular. By translating an oral speech into text, people receive information for study, presented in a convenient format for working with it. This article deals in detail with interaction with RTL-SDR to obtain a digital signal with recording radio conversations and further converting them into a text document. The aim of the study is to find and implement a method that effectively solves the above-mentioned tasks. The problems associated with a large amount of audio information, which takes up a lot of memory resources for processing, are analyzed. The use of a neural network as a means of recognizing audio information is considered: this method provides the optimal way to obtain a finished text document while minimizing the steps of work and its execution time. The results obtained are analysed and conclusions are drawn on the further development of the study.
- ПубликацияТолько метаданныеDevelopment of an Anti-fraud System with Real-Time Analytics(2022) Shaymardanov, T. A.; Vavrenyuk, A. B.; Вавренюк, Александр Борисович© 2022 IEEE.A large number of payments, transactions, logins are made daily. Our task was to implement an anti-fraud system for making decisions when processing bank payments. This paper describes the challenges that many companies around the world face on a daily basis. It describes the architecture of the solution, design patterns, and also describes the issues of fault tolerance and scalability of this system.
- ПубликацияТолько метаданныеDevelopment of Analytical Module for Improving the Quality of the Automated Dialogue System(2020) Shaymardanov, T. A.; Kolosov, R. V.; Vavrenyuk, A. B.; Makarov, V. V.; Вавренюк, Александр Борисович© 2020 IEEE.We have developed a system of automated robot to human dialogs. The system allows you to automatically make hundreds of calls per minute. The core of our system uses a full-text search by preliminary specified keys. The developed system showed high work efficiency but required the development of new analytical methods to improve call quality. This paper describes the basis of system architecture and the development of a Hadoop-based analytic module to solve existing problems. It also describes the methods and solutions that we used. It discusses the system requirements for availability and scalability.
- ПубликацияТолько метаданныеAnalysis of an Efficiency of Parallelization of Algorithms Running on Computing Cluster Based on Single-Board Diskless Computers Raspberry PI 3 Model B(2021) Vavrenyuk, A. B.; Matveeva, D. V.; Lukyantsev, N. M.; Makarov, V. V.; Вавренюк, Александр Борисович© 2021 IEEE.This article is devoted to the analysis of parallelization efficiency of algorithms for solving linear systems of equations. The article presents an assessment of the quality of optimization of two algorithms for distributing the computational load between cluster nodes. The hardware is a computing cluster based on single-board computers with Linux Debian 8 as an operation system. Hydra Process Manager with an Slurm resource manager that implements a queue for multi-user access to the system is used to run and debug parallel tasks. The resulting system is planned to be used in the future in the educational process of MEPhI (Moscow Engineering Physics Institute) for a laboratory workshop on parallel computing.
- ПубликацияТолько метаданныеAutomated Flow Meter for LPG Cylinders(2022) Shurygin, V. A.; Yadykin, I. M.; Vavrenyuk, A. B.; Шурыгин, Виктор Александрович; Ядыкин, Игорь Михайлович; Вавренюк, Александр Борисович© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.The article discusses the stages of practical implementation of measuring the flow of liquefied gas from a cylinder. The gas flow rate is determined based on the revealed dependence of the inductance of the gas cylinder on the mass of the gas and the ambient temperature. Devices for carrying out reference measurements and stages of calibration of flow meters and requirements for the design of the measuring system are given. An example of the implementation of an automated measuring system for calibration is considered.
- ПубликацияТолько метаданныеPerformance Evaluation of a Cluster Computing System Running OpenBSD Based on Single-Board Computers(2020) Vavrenyuk, A. B.; Makarov, V. V.; Pryakhin, V. S.; Pavlov, M. P.; Vasileva, A. A.; Вавренюк, Александр Борисович© 2020, Springer Nature Switzerland AG.This report discusses the principles of the development of cluster computing systems based on single-board computers. It reviews main software and hardware used for this purpose and compares them. The analysis is carried out and the most effective and suitable solutions are selected, as well as the rationale for their choice to solve the problem. It was reviewed three variants of single-board computers, operating system choice and different message passing interfaces that can to be used for this cluster computing system. In the practical part of this article a working cluster construction algorithm is presented and the features of the operating system (OS) are described. Cluster performance is also assessed depending on the number of nodes and OS being used. The report materials can be used as a guide for creating a cluster computing system that is not inferior to its counterparts in speed and to a large extent surpasses them in security.
- ПубликацияТолько метаданныеStudy of the possibilities of using virtualization tools to optimize the cluster resources management(2019) Radiskhlebova, A. A.; Vavrenyuk, A. B.; Rusakova, A. S.; Makarov, V. V.; Вавренюк, Александр Борисович© 2019 IEEE A cluster is a combination of a set of separate computing resources to use them as a single system. Cluster management is related to the distribution of resources between tasks. In most cases, the cluster management system provides resources without taking into account the features of the started tasks, which can result in slower performance of the programs executed on the cluster. Virtualization tools provide more options for flexible management of running applications, which allows you to gain an advantage optimizing the allocation of tasks to cluster nodes in comparison with the classic scheduler. The article reviews various methods and tools of virtualization, discusses their use for solving the problem of optimizing the cluster resources management.
- ПубликацияТолько метаданныеFlash Memory—Formation, Development and Prospects(2020) Vavrenyuk, A. B.; Makarov, V. V.; Shurygin, V. A.; Вавренюк, Александр Борисович; Шурыгин, Виктор Александрович© 2020, Springer Nature Switzerland AG.The history of the emergence, the current state, as well as prospects for the development of flash memory is presented. The physical processes underlying the operation of flash memory, the varieties of its architecture are shown, the modern element base of flash memory is given. The main points are presented, such as the concept of flash memory, floating gate transistors, quantum mechanical Fowler—Nordheim effect (FN—tunneling), hot electron injection, a combination of these recording methods, their advantages and disadvantages, various NOR and NAND flash memory architectures and their combinations, cell varieties and bad block culling. Prospects of further development of flash memory are considered. Currently, attempts are being made to move from two-dimensional topology to three-dimensional. These developments allow the use of metal nanocrystals in the production of memory chips, without making almost any changes in the technological process. A material capable of doubling the capacity of conventional flash memory chips by adding self-forming metal nanocrystals to the production stage of chips by introducing a third dimension into the memory matrix has been developed. At this stage of development continues to dominate flash memory, the prospects of which is devoted to the article is given.
- ПубликацияТолько метаданныеEncrypted Data Transmission Over an Open Channel(2019) Vavrenyuk, A. B.; Makarov, V. V.; Shurygin, V. A.; Tcibisov, D. V.; Вавренюк, Александр Борисович; Шурыгин, Виктор Александрович© 2019, Springer Nature Switzerland AG. This paper discusses methods for transmitting cipher messages over an open communication channel using an additional channel for transmitting a secret key. Set of the possible one-time keys are contained in the table on the sending and receiving side. The key to encrypt and decrypt a message is selected based on a signal that can be transmitted over an additional channel at a specified time or a timestamp in the cipher message itself. The proposed method also allows the use of a truly random number generator to obtain secret keys, which provides an absolutely strong cipher. Two variants of forming and using tables with secret keys are proposed. Estimations of the required time for encryption and decryption of data, as well as the necessary amount of memory for storing tables are given.