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News
September 18, 2026
When Pictures Hinder Understanding: Illustrations May Impede Learning of Abstract Ideas
Illustrations can help remember specific actions but do not always make abstract ideas easier to learn. Researchers from HSE University and Humboldt University compared how people learn from texts with different levels of abstractness. They found that participants remembered illustrations better and performed better on related tasks after reading a multimedia text about yoga asanas than after reading an abstract text about the Nash equilibrium. The findings could help improve the selection of illustrations for educational and informational materials. The study has been published in Learning and Instruction.
September 17, 2026
'I Wish That People Would Place Greater Trust in Science'
When Tatiana Eremicheva chose Fundamental and Computational Linguistics as her field of study, she thought it would be about learning languages. Instead, she discovered it was about helping people. In this interview for the HSE Young Scientists project, she discusses science as a way of understanding the world, billiards as a team-building activity, and why learning to read is not always as easy as it seems.
September 15, 2026
Immunity to Chaos: How Personal Resources Help Us Cope with the Challenges of a Turbulent World
International conflicts, crises and digital overload—the modern world puts our minds to the test every day. Traditional psychology often focuses on the consequences: anxiety, depression, and psychosomatic disorders. But what if we looked at the problem differently—through the lens of the resources that prevent us from breaking down? Psychological immunity is precisely this set of resources. Alena Zolotareva and her group, Psychological Immunity as a Resource for Positive Functioning, are developing an integrative model of this phenomenon, adapting diagnostic tools and preparing for large-scale empirical research. Why do psychologists need to collaborate with medical professionals, and how could their research transform preventive care in clinics and corporations?

 

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Local Search Trajectories over S-box space

Journal of Information Security and Applications. 2022. Vol. 69. Article 103272.
Martínez-Díaz I., Legón-Pérez C. M., Rojas O., Sosa Gómez G., Oliva D.
Language: English
DOI
Keywords: cryptographylocal searchS-box
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Improved Objective Functions to Search for 8 × 8 Bijective S-Boxes With Theoretical Resistance Against Power Attacks Under Hamming Leakage Models
Martínez-Díaz I., Freyre-Echevarría A., Rojas O. et al., IEEE Access 2022 Vol. 10 P. 11886–11891
Added: September 18, 2026
Search-Space Reduction for S-Boxes Resilient to Power Attacks
Legón-Pérez C. M., Sánchez-Muiña R., Miyares-Moreno D. et al., Applied Sciences (Switzerland) 2021 Vol. 11 No. 11 Article 4815
Added: September 18, 2026
Probabilistic Evaluation of the Exploration–Exploitation Balance during the Search, Using the Swap Operator, for Nonlinear Bijective S-Boxes, Resistant to Power Attacks
Legón-Pérez C. M., Menéndez-Verdecía J. A., Martínez-Díaz I. et al., Information (Switzerland) 2021 Vol. 12 No. 12 Article 509
Added: September 18, 2026
Evolving Nonlinear S-Boxes With Improved Theoretical Resilience to Power Attacks
Freyre-Echevarría A., Martínez-Díaz I., Legón-Pérez C. M. et al., IEEE Access 2020 Vol. 8 P. 202728–202737
Added: September 18, 2026
Generation of Affine-Shifted S-Boxes with Constant Confusion Coefficient Variance and Application in the Partitioning of the S-Box Space
Martínez-Díaz I., Legón-Pérez C. M., Sosa Gómez G., Cryptography 2025 Vol. 9 No. 2 Article 45
Added: September 18, 2026
Mathematical problems and solutions of the Ninth International Olympiad in Cryptography NSUCRYPTO
Idrisova V. A., Tokareva N. N., Gorodilova A. A. et al., Prikladnaya Diskretnaya Matematika 2023 No. 62 P. 29–54
Every year the International Olympiad in Cryptography Non-Stop University CRYPTO (NSUCRYPTO) offers mathematical problems for university and school students and, moreover, for professionals in the area of cryptography and computer science. The main goal of NSUCRYPTO is to draw attention of students and young researchers to modern cryptography and raise awareness about open problems in ...
Added: March 19, 2024
An overview of the Eight International Olympiad in Cryptography “Non-Stop University CRYPTO”
Gorodilova A. A., Tokareva N. N., Agievich S. V. et al., Siberian Electronic Mathematical Reports 2022 Vol. 19 No. 1 P. A.9–A.37
Non-Stop University CRYPTO is the International Olympiad in Cryptography that was held for the eight time in 2021. Hundreds of university and school students, professionals from 33 countries worked on mathematical problems in cryptography during a week. The aim of the Olympiad is to attract attention to curious and even open scientific problems of modern ...
Added: March 19, 2024
Possibility of Recovering Message Segments Based on Side Information about Original Characters
Malashina A., Doklady Mathematics 2024 Vol. 108 No. 2 P. S282–S292
To provide secure information exchange in communication channels, the correctness of the operation of the relevant information protection systems must be preliminary studied. The mathematical algorithms used in such systems are correct and can theoretically provide the correct statistical properties of the output stream compared to the input. However, at the stage of implementation (programming) ...
Added: November 11, 2023
О возможности восстановления отрезков сообщения по информации о значениях исходных символов
А. Г. Малашина, Доклады Российской академии наук. Математика, информатика, процессы управления (ранее - Доклады Академии Наук. Математика) 2023 Т. 514 № 2 С. 138–149
В целях обеспечения защищенного информационного обмена в каналах связи необходимо предварительное исследование корректности работы соответствующих систем защиты информации. Несмотря на то что используемые в таких системах математические алгоритмы корректны и теоретически обеспечивают правильные статистические свойства выходного потока по сравнению с входным, на этапе реализации (программирования) данных алгоритмов защиты или на этапах сборки конечного оборудования (использования ...
Added: November 1, 2023
Information disclosure in the framework of kolmogorov complexity
Vereshchagin N., Theoretical Computer Science 2023 Vol. 940 P. 108–122
We consider the network consisting of three nodes 1, 2, 3 connected by two open channels 1 → 2 and 1 → 3. The information present in the node 1 consists of four strings x , y , z , w. The nodes 2, 3 know x , w and need to know y , z, respectively. ...
Added: December 19, 2022
Правовая информатика
Dmitrik N., М.: Инфотропик Медиа, 2022.
This is a textbook on legal informatics, that is, the theoretical part of the course "Information technologies for lawyers", which the author reads at the Faculty of Law of Lomonosov Moscow State University. Legal informatics consists of three parts: information theory, the theoretical foundations of information technology and the foundations of safe behavior in cyberspace. ...
Added: April 1, 2022
Новые находки памятников древнепермского языка и письма
Grishchenko A., Понарядов В. В., Урало-алтайские исследования 2021 № 4 (43) С. 7–34
The paper for the first time publishes monuments of the Old Permian language written with Abur, or the script of St. Stephen of Perm; these sources are previously unknown or have not been introduced into academic circulation. They are published here as facsimiles, with transliteration, transcription, and Russian translation. Perhaps the oldest of these inscriptions ...
Added: January 18, 2022
On the impossibility of an invariant attack on Kuznyechik
Fomin D., Journal of Computer Virology and Hacking Techniques 2022 Vol. 18 P. 61–67
Currently numerous cryptographic systems are based on SP-networks. These primitives are supposed to be secure but recent investigations show that some attacks are possible. The aim of this work is to study how secure the Russian standardized block cipher Kuznyechik over invariant attacks. We study the already known decompositions of its permutation and show the ...
Added: November 29, 2021
Применение статистических тестов NIST для анализа выходных последовательностей блочных шифров
Perov A., Научный вестник Новосибирского государственного технического университета 2019 Т. 76 № 3 С. 87–96
Modern iterative block ciphers are one of the most popular methods for providing a secure information exchange in internet networks. A widespread use of this technology and the development of computing power give rise to a whole list of threats to cryptanalysis of ciphers. Ensuring cryptographic security is in this case one of the key ...
Added: November 22, 2021
Using Machine Learning Technologies for Carrying out Statistical Analysis of Block Ciphers
Perov A., Conference: 2019 International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON) 2019 P. 851–854
This article presents the application of machine learning technologies to cryptography tasks, in particular, the statistical analysis of block ciphers. The author uses the Inception V3 neural network model, which is traditionally used for images recognition. A technology for adapting ciphertexts to the developed technique is proposed. The results of experiments on encrypted sequences are ...
Added: November 20, 2021
Automata Under Effective Observation
Babash A. V., , in: Proceedings of the 10th International Scientific and Practical Conference named after A. I. Kitov "Information Technologies and Mathematical Methods in Economics and Management (IT&MM-2020)"/, Moscow, Russia, October 15-16, 2020Vol. 2830.: CEUR Workshop Proceedings, 2021. P. 337–359.
A trapdoor cipher is a cipher whose algorithm contains some hidden structure (a trapdoor) providing the existence of a subliminal information channel. In cryptographic practice, there could be situations when a constructed cipher may contain some critical defect (a trapdoor) whose identification can significantly weaken the cryptographic strength of this cipher. In this paper, we ...
Added: November 2, 2021
Криптографические методы защиты информации для изучающих компьютерную безопасность
Los A., Nesterenko A., Rozhkov M., М.: Юрайт, 2021.
The textbook is intended for students of higher education institutions studying in the specialty 10.00.00. The main attention is paid to the rigorous mathematical justification, effective implementation and analysis of labor-intensive algorithms used in cryptographic applications. A description of modern cryptographic schemes and protocols that use the theoretical information presented is given. ...
Added: September 30, 2021
О способе построения дифференциально 2δ-равномерных подстановок на F_{2^{2m}}
Fomin D., Прикладная дискретная математика. Приложение 2021 № 14 С. 51–55
The paper studies new ways of con- structing differentially 2δ-uniform bijections over F_{2^{2m}} , m≥3, that are based on TU-construction. Some well known results on the constructing differentially 4-uniform permutations over F_{2^{2m}} are generalized in this work. The core idea is to use TU-construction and differentially δ-uniform bijections to construct 2^t · δ-uniform permutations. A generalized method for constructing 2m-bit differentially 4-uniform permutations ...
Added: September 22, 2021
Новые подходы к дешифрованию классических шифров. Приложения к процессам целевой подготовки молодых специалистов.
Babash A. V., Baranova E., В кн.: Информационные технологии в государственном управлении. Цифровая трансформация и человеческий капитал: сборник научных трудов 19-й научно-практической конференции (Москва, 29 апреля 2021 г.).: Проспект, 2021. С. 26–47.
Предлагаются новые атаки на шифр случайного гаммирования, шифр простой замены, шифр перестановки, дисковые шифры, блочные шифры с расчетом их трудоемкости и надежности. ...
Added: August 30, 2021
Информационные технологии в государственном управлении. Цифровая трансформация и человеческий капитал: сборник научных трудов 19-й науч.-практ._конф. (Москва, 29 апреля 2021 г.) /под ред. Н.И.Куренкова [и др.] - М.: Изд-во «Проспект», 2021
М.: Проспект, 2021.
В сборнике представлены конкурсные работы 19-й научно- практической конференции, посвященной вопросам текущего и перспективного использования современных ИКТ для решения задач управления крупными и целевыми проектами, построения информационных систем для органов государственной власти, местного самоуправления и рассмотрения процессов цифровой трансформации социально-экономического развития общества. ...
Added: August 30, 2021
Об одном представлении нелинейного преобразования алгоритма «Кузнечик» с помощью логических функций
Авраамова О. Д., Fomin D., Серов В. А. et al., Математические вопросы криптографии 2021 Vol. 12 No. 2 P. 21–38
In this paper we consider a bit-sliced implementation of the non-linear transformation shared by GOST R 34.12-2015 “Kuznyechik” block cipher and GOST R 34.11-2012 “Streebog” hash function. We combine analytical and computer methods to get a 226 Boolean operations representation. ...
Added: July 26, 2021
Криптографические методы защиты информации. Лабораторный практикум + Приложение: дополнительные материалы
Baranova E., Babash A. V., КноРус, 2022.
Посвящено рассмотрению практических вопросов защиты информации методами криптографии и стеганографии. В пособие включены описания лабораторных работ с комплектом исполняемых программных модулей. Все практические работы предваряет теоретический раздел и заключает перечень контрольных вопросов. Соответствует ФГОС ВО последнего поколения. Для студентов бакалавриата и магистратуры, обучающихся по направлению «Информационная безопасность». ...
Added: June 16, 2021
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