Vasyl Ustimenko

100 papers C 7Journal 52Unranked 27
YearRankTypeTitle / Venue / Authors
2026 J jnl
On quadratic equations of q-regular tree and their applications in Graph Theory and Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki
2025 J jnl
New key establishment protocol based on random 1 walks in infinite forest.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki
2025 — conf
On Algebraic Graphs of Large Girth and New Families of Message Authentication Codes (short paper).
CQPC
Vasyl Ustimenko, Oleksandr Pustovit
2025 — conf
On Symbolic Computations over Arbitrary Commutative Rings via Temporal Jordan-Gauss Graphs and Multivariate Cryptosystems.
CPITS
Vasyl Ustimenko, Oleksandr Pustovit
2025 J jnl
On graph based pseudo quadratic multivariate maps of prescribed degree as instruments of key establishment.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki
2025 J jnl
On graph based pseudo quadratic multivariate maps of prescribed degree as instruments of key establishment.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki
2025 J jnl
On symbolic computations and Post Quantum Cryptography with Lie Geometries.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2025 J jnl
On symbolic computations over arbitrary commutative rings and cryptography with the temporal Jordan-Gauss graphs.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2025 — conf
On the Postquantum Protocol-Based Short Digital Signatures with Multivariate Maps Over Arithmetical Rings.
FICC (3)
Vasyl Ustimenko, Oleksandr Pustovit
2025 — conf
On the expanding graphs of large girth and algorithms of key establishment.
ITTAP
Vasyl Ustimenko, Tymoteusz Chojecki
2025 — conf
On the stream ciphers based on the hidden algebraic graphs (short paper).
CPITS II
Vasyl Ustimenko, Oleksandr Pustovit, Tymofii Svyrydenko
2025 — ed.
Proceedings of the Classic, Quantum, and Post-Quantum Cryptography co-located with International Conference on Problems of Infocommunications. Science and Technology, CQPC@PICST 2025, Kyiv, Ukraine, August 5, 2025.
CQPC
Volodymyr Sokolov, Vasyl Ustimenko, Mariya Nazarkevych
2025 — ed.
Proceedings of the Cybersecurity Providing in Information and Telecommunication Systems II, Kyiv, Ukraine, October 26, 2025 (online).
CPITS II
Volodymyr Sokolov, Vasyl Ustimenko, Tamara Radivilova, Mariya Nazarkevych
2025 — ed.
Proceedings of the Workshop on Cybersecurity Providing in Information and Telecommunication Systems, CPITS 2025, Kyiv, Ukraine, February 28, 2025 (online).
CPITS
Volodymyr Sokolov, Vasyl Ustimenko, Tamara Radivilova, Mariya Nazarkevych
2024 — conf
Implementation of New Families of Graph-based Stream Ciphers with the Hidden Multivariate Nature.
CPITS
Vasyl Ustimenko, Oleksandr Pustovit
2024 — conf
Jordan-Gauss graphs and quadratic public keys of Multivariate Cryptography.
ITTAP
Vasyl Ustimenko, Oleksandr Pustovit
2024 — conf
On Graphs Defined by Equations and Cubic Multivariate Public Keys.
FICC (3)
Vasyl Ustimenko, Tymoteusz Chojecki, Michal Klisowski
2024 — conf
On Implemented Graph-Based Generator of Cryptographically Strong Pseudorandom Sequences of Multivariate Nature.
FICC (3)
Vasyl Ustimenko, Tymoteusz Chojecki
2024 J jnl
On Schubert cells of Projective Geometry and quadratic public keys of Multivariate Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2024 — conf
On Schubert cells of projective geometry and pseudo-quadratic public keys of multivariate cryptography (short paper).
CPITS II
Vasyl Ustimenko, Oleksandr Pustovit
2024 J jnl
On affine forestry over integral domains and families of deep Jordan-Gauss graphs.
IACR Cryptol. ePrint Arch.
Tymoteusz Chojecki, Grahame Erskine, James Tuite, Vasyl Ustimenko
2024 J jnl
On historical Multivariate Cryptosystems and their restorations as instruments of Post-Quantum Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2024 J jnl
On short digital signatures with Eulerian transformations.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2024 J jnl
On the Jordan-Gauss graphs and new multivariate public keys.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki, Aneta Wróblewska
2024 J jnl
On the cryptosystems based on two Eulerian transfor-mations defined over the commutative rings Z
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2024 — ed.
Proceedings of the Classic, Quantum, and Post-Quantum Cryptography co-located with International Conference on Problems of Infocommunications. Science and Technology (PICST 2024), Kyiv, Ukraine, August 6, 2024 (online).
CQPC
Volodymyr Sokolov, Vasyl Ustimenko, Mariya Nazarkevych
2024 — ed.
Proceedings of the Cybersecurity Providing in Information and Telecommunication Systems II, Kyiv, Ukraine, October 26, 2024 (online).
CPITS II
Volodymyr Sokolov, Vasyl Ustimenko, Tamara Radivilova, Mariya Nazarkevych
2024 — ed.
Proceedings of the Workshop Cybersecurity Providing in Information and Telecommunication Systems (CPITS 2024), Kyiv, Ukraine, February 28, 2024 (online).
CPITS
Volodymyr Sokolov, Vasyl Ustimenko, Tamara Radivilova, Mariya Nazarkevych
2023 — conf
Expanding Extremal Graphs and Implemented Solutions of Post Quantum Cryptography.
CPITS
Vasyl Ustimenko, Oleksandr Pustovit
2023 C conf
Extremal algebraic graphs, quadratic multivariate public keys and temporal rules.
FedCSIS
Vasyl Ustimenko, Aneta Wróblewska
2023 J jnl
Extremal algebraic graphs, quadratic multivariate public keys and temporal rules.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Aneta Wróblewska
2023 — conf
Families of Stream Ciphers based on Non-Bijective Multivariate Encryption Maps of High Degree.
CPITS II
Vasyl Ustimenko, Oleksandr Pustovit
2023 — conf
Linear Codes of Schubert Type and Quadratic Public Keys of Multivariate Cryptography (short paper).
CQPC
Vasyl Ustimenko
2023 J jnl
Linear codes of Schubert type and quadratic public keys of Multivariate Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2023 C conf
On Extremal Algebraic Graphs and implementations of new cubic Multivariate Public Keys.
FedCSIS
Vasyl Ustimenko, Tymoteusz Chojecki, Michal Klisowski
2023 J jnl
On Extremal Algebraic Graphs and implementations of new cubic Multivariate Public Keys.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki, Michal Klisowski
2023 — conf
On families of stream ciphers based on the approximations of regular forests.
ITTAP
Vasyl Ustimenko, Oleksandr Pustovit
2023 J jnl
On implemented graph based generator of cryptographically strong pseudorandom sequences of multivariate nature.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Tymoteusz Chojecki
2023 — ed.
Proceedings of the Cybersecurity Providing in Information and Telecommunication Systems II co-located with International Conference on Problems of Infocommunications. Science and Technology (PICST 2023), Kyiv, Ukraine, October 26, 2023 (online).
CPITS II
Volodymyr Sokolov, Tamara Radivilova, Vasyl Ustimenko, Mariya Nazarkevych
2023 — ed.
Proceedings of the Cybersecurity Providing in Information and Telecommunication Systems, CPITS 2023, co-located with International Conference on Problems of Infocommunications. Science and Technology (PICST 2023), Kyiv, Ukraine, February 28, 2023 (online).
CPITS
Volodymyr Sokolov, Tamara Radivilova, Vasyl Ustimenko, Mariya Nazarkevych
2023 — ed.
Proceedings of the Workshop on Classic, Quantum, and Post-Quantum Cryptography (CQPC 2023) co-located with International Conference on Problems of Infocommunications. Science and Technology (PICST 2023), Kyiv, Ukraine, August 1, 2023 (online).
CQPC
Volodymyr Sokolov, Vasyl Ustimenko, Mariya Nazarkevych
2023 — conf
Schubert cells and quadratic public keys of Multivariate Cryptography.
ITTAP
Vasyl Ustimenko
2022 J jnl
New results on algebraic graphs of large girth and their impact on Extremal Graph Theory and Algebraic Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2022 — conf
On D(n; q) quotients of large girth and hidden homomorphism based cryptographic protocols.
FedCSIS (Communication Papers)
Vasyl Ustimenko, Michal Klisowski
2022 J jnl
On Extremal Algebraic Graphs and Multivariate Cryptosystems.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2022 — conf
On Multivariate Maps of High Degree for the Post Quantum Protection of Virtual Organizations (short paper).
CPITS
Vasyl Ustimenko, Tymoteusz Chojecki
2022 J jnl
On fast computations of numerical parameters of homogeneous algebraic graphs of large girth and small diameter and encryption of large files.
IACR Cryptol. ePrint Arch.
Tymoteusz Chojecki, Vasyl Ustimenko
2022 J jnl
On new results on Extremal Graph Theory, Theory of Algebraic Graphs and their applications in Cryptography and Coding Theory.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2022 J jnl
On the families of graphs with the fastest growth of girth and their usage in cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2022 — conf
On-Time Dependent Linguistic Graphs and Solutions of Postquantum Multivariate Cryptography (short paper).
CPITS
Vasyl Ustimenko, Oleksandr Pustovit
2022 — ed.
Proceedings of the Cybersecurity Providing in Information and Telecommunication Systems, CPITS 2022, co-located with International Conference on Problems of Infocommunications. Science and Technology (PICST 2022), Kyiv, Ukraine, October 13, 2022 (online).
CPITS
Volodymyr Sokolov, Tamara Radivilova, Vasyl Ustimenko, Mariya Nazarkevych
2021 — conf
Eulerian Transformations and Postquantum Access Control Protocol-Based Algorithms (short paper).
CPITS II (2)
Vasyl Ustimenko, Oleksandr Pustovit
2021 — conf
New Cryptosystems of Noncommutative Cryptography based on Eulerian Semigroups of Multivariate Transformations (short paper).
CPITS I
Vasyl Ustimenko, Oleksandr Pustovit
2021 J jnl
On Extremal Expanding Algebraic Graphs and post-quantum secure delivery of passwords, encryption maps and tools for multivariate digital signatures.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2021 J jnl
On computations with Double Schubert Automaton and stable maps of Multivariate Cryptography.
CoRR
Vasyl Ustimenko
2021 J jnl
On effective computations in special subsemigroups of polynomial transformations and protocol based multivariate cryptosystems.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2020 J jnl
On Multivariate Algorithms of Digital Signatures Based on Maps of Unbounded Degree Acting on Secure El Gamal Type Mode.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2020 J jnl
On Multivariate Algorithms of Digital Signatures of Linear Degree and Low Density.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2020 J jnl
On Multivariate Algorithms of Digital Signatures on Secure El Gamal Type Mode.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2019 — conf
Expanding graphs of the Extremal Graph Theory and expanded platforms of Post Quantum Cryptography.
FedCSIS (Position Papers)
Vasyl Ustimenko, Urszula Romanczuk-Polubiec, Aneta Wróblewska
2019 J jnl
On Noncommutative Cryptography and homomorphism of stable cubical multivariate transformation groups of infinite dimensional affine spaces.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko, Michal Klisowski
2019 J jnl
On affine Cremona semigroups, corresponding protocols of Non-commutative Cryptography and encryption with several nonlinear multivariate transformations on secure Eulerian mode.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2019 J jnl
On inverse protocols of Post Quantum Cryptography based on pairs of noncommutative multivariate platforms used in tandem.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2019 J jnl
On semigroups of multiplicative Cremona transformations and new solutions of Post Quantum Cryptography.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2019 J jnl
On the Constructions of New Symmetric Ciphers Based on Nonbijective Multivariate Maps of Prescribed Degree.
Secur. Commun. Networks
Vasyl Ustimenko, Urszula Romanczuk-Polubiec, Aneta Wróblewska, Monika Katarzyna Polak, Eustrat Zhupa
2018 C conf
On the implementation of new symmetric ciphers based on non-bijective multivariate maps.
FedCSIS
Vasyl Ustimenko, Urszula Romanczuk-Polubiec, Aneta Wróblewska, Monika Polak, Eustrat Zhupa
2017 J jnl
A geometric approach to orbital recognition in Chevalley-type coherent configurations and association schemes.
Australas. J Comb.
Vasyl Ustimenko, Andrew J. Woldar
2017 J jnl
On desynchronised El Gamal algorithm.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2017 J jnl
On new multivariate cryptosystems based on hidden Eulerian equations over finite fields.
IACR Cryptol. ePrint Arch.
Vasyl Ustimenko
2015 J jnl
Algorithms for generation of Ramanujan graphs, other Expanders and related LDPC codes.
Ann. UMCS Informatica
Monika Polak, Vasyl Ustimenko
2015 — ch.
Graph based cubical multivariate maps and their cryptographical applications.
Advances on Superelliptic Curves and their Applications
Michal Klisowski, Vasyl Ustimenko
2014 — conf
On LDPC Codes Based on Families of Expanding Graphs of Increasing Girth without Edge-Transitive Automorphism Groups.
CSS
Monika Polak, Vasyl Ustimenko
2014 J jnl
On Multivariate Cryptosystems Based on Computable Maps with Invertible Decomposition.
Ann. UMCS Informatica
Vasyl Ustimenko
2014 — conf
On Multivariate Cryptosystems Based on Polynomially Compressed Maps with Invertible Decomposition.
CSS
Urszula Romanczuk-Polubiec, Vasyl Ustimenko
2014 J jnl
On New Examples of Families of Multivariate Stable Maps and their Cryptographical Applications.
Ann. UMCS Informatica
Aneta Wróblewska, Vasyl Ustimenko
2014 C conf
On multivariate cryptosystems based on maps with logarithmically invertible decomposition corresponding to walk on graph.
FedCSIS
Vasyl Ustimenko
2014 J jnl
On two windows multivariate cryptosystem depending on random parameters.
IACR Cryptol. ePrint Arch.
Urszula Romanczuk-Polubiec, Vasyl Ustimenko
2013 C conf
Examples of Ramanujan and expander graphs for practical applications.
FedCSIS
Monika Polak, Vasyl Ustimenko
2013 — ch.
On Dynamical Systems of Large Girth or Cycle Indicator and Their Applications to Multivariate Cryptography.
Artificial Intelligence, Evolutionary Computing and Metaheuristics
Vasyl Ustimenko, Urszula Romanczuk
2013 — ch.
On Extremal Graph Theory, Explicit Algebraic Constructions of Extremal Graphs and Corresponding Turing Encryption Machines.
Artificial Intelligence, Evolutionary Computing and Metaheuristics
Vasyl Ustimenko, Urszula Romanczuk
2013 J jnl
On the applications of Extremal Graph Theory to Coding Theory and Cryptography.
Electron. Notes Discret. Math.
Monika Polak, Urszula Romanczuk, Vasyl Ustimenko, Aneta Wróblewska
2013 J jnl
On the key exchange and multivariate encryption with nonlinear polynomial maps of stable degree.
Ann. UMCS Informatica
Vasyl Ustimenko, Aneta Wróblewska
2013 J jnl
On the key exchange with nonlinear polynomial maps of stable degree
CoRR
Vasyl Ustimenko, Aneta Wróblewska
2012 J jnl
Dynamical systems as the main instrument for the constructions of new quadratic families and their usage in cryptography.
Ann. UMCS Informatica
Vasyl Ustimenko, Aneta Wróblewska
2012 J jnl
LDPC Codes Based on Algebraic Graphs.
Ann. UMCS Informatica
Monika Polak, Vasyl Ustimenko
2012 J jnl
On Families of Graphs of Large Cycle Indicator, Matrices of Large Order and Key Exchange Protocols With Nonlinear Polynomial Maps of Small Degree.
Math. Comput. Sci.
Urszula Romanczuk, Vasyl Ustimenko
2012 C conf
On LDPC Codes Corresponding to Infinite Family of Graphs A(k;K).
FedCSIS
Monika Polak, Vasyl Ustimenko
2012 — conf
On some mathematical aspects of data protection in cloud computing.
HPCS
Vasyl Ustimenko
2012 J jnl
On the Comparison of Cryptographical Properties of Two Different Families of Graphs with Large Cycle Indicator.
Math. Comput. Sci.
Michal Klisowski, Vasyl Ustimenko
2012 J jnl
On the family of cubical multivariate cryptosystems based on the algebraic graph over finite commutative rings of characteristic 2.
Ann. UMCS Informatica
Urszula Romanczuk, Vasyl Ustimenko
2011 J jnl
On LDPC codes corresponding to affine parts of generalized polygons.
Ann. UMCS Informatica
Monika Polak, Vasyl Ustimenko
2011 C conf
On the implementation of stream ciphers based on a new family of algebraic graphs.
FedCSIS
Vasyl Ustimenko, Stanislaw Kotorowicz, Urszula Romanczuk
2011 J jnl
On the key exchange with new cubical maps based on graphs.
Ann. UMCS Informatica
Urszula Romanczuk, Vasyl Ustimenko
2011 J jnl
On the key expansion of
Ann. UMCS Informatica
Vasyl Ustimenko, Aneta Wróblewska
2011 J jnl
Performance of algebraic graphs based stream-ciphers using large finite fields.
Ann. UMCS Informatica
Abderezak Touzene, Vasyl Ustimenko, Marwa AlRaissi, Imene Boudelioua
2011 J jnl
The implementation of cubic public keys based on a new family of algebraic graphs.
Ann. UMCS Informatica
Michal Klisowski, Urszula Romanczuk, Vasyl Ustimenko
2010 — conf
On the implementation of public keys algorithms based on algebraic graphs over finite commutative rings.
IMCSIT
Michal Klisowski, Vasyl Ustimenko
2009 — ch.
On the Cryptographical Properties of Extremal Algebraic Graphs.
Algebraic Aspects of Digital Communications
Vasyl Ustimenko
2008 — conf
On the hidden discrete logarithm for some polynomial stream ciphers.
IMCSIT
Vasyl Ustimenko
2001 — conf
CRYPTIM: Graphs as Tools for Symmetric Encryption.
AAECC
Vasyl Ustimenko