Kozina Galyna Leonidivna

Position

Associate Professor of the Department IBtaN

Academic degree

Candidate of Physics and Mathematics

Academic title

docent

Education

higher

1978, Leningrad State University, majoring in Operations Research, diploma qualification – mathematician

Subjects taught

Basics of cryptography and steganography

Methods for constructing and analyzing cryptosystems

Digital Signature Protocols

Applied steganography

Applied cryptology

Main languages of communication

Ukrainian.

Theses:

  • PhD thesis:

    05.15.16 «Use of computing, mathematical modeling and mathematical methods in scientific research»: «Algorithms and estimates for some vector optimization problems on multi-colored graphs», year of defense – 1994, Zaporizhzhia State University (Zaporizhzhia).

Scientific interests:

  • Cryptographic methods of information protection

  • Cryptanalysis methods

  • Steganographic information protection

Scientist accounts

Total scientific papers: 40, of which 6 are patents, 2 are textbooks.

Year of commencement of activities at the university: 1987.

Main scientific works

  1. Kozina G. L. Mathematical approach to increasing the speed of software implementation of the SM4 crypto algorithm / Kozina G. L., Savchenko Yu. V., Voskoboynyk V. O., D. I. Prokopovych-Tkachenko, Katsyuba V. V. // Systems and Technologies, No. 2 (68), 2024. – P. 78-85.

  2. Kozina G. L. Steganographic protection system for photographs using fragile watermarks / Kozina G. L., Savchenko Yu. V., Voskoboynik V. O., Karpukov L. M. // Systems and Technologies, No. 2 (64), 2022. – P. 75-81.

  3. Karpukov L. M. Method of increasing information security in communication channels using microwave filters with attenuation poles at given frequencies / Karpukov L. M., Voskoboynik V. O., Savchenko Yu. V., Kozina G. L. // Systems and Technologies, No. 2 (64), 2022. – P. 64-74.

  4. Kozina, G.L., Savchenko, D.K. Aggregate Signature Protocol with Group Leader. Cybern Syst Anal 57, 165–172 (2021). https://doi.org/10.1007/s10559-021-00340-2 (Translated from Kibernetyka ta Systemnyi Analiz, No. 1, January–February, 2021, pp. 191–200.) (Kozina G.L. Aggregate Signature Protocol with Group Leader / Kozina G.L., Savchenko D.K. // Cybernetics and System Analysis. – 2021. – No. 1 (57). – P.165-172.)

  5. Galchenko A.V. Modification of the Meng deniable encryption algorithm / Galchenko A.V., Kozina G.L. // Radioelectronics. Informatics. Management. – 2016. – No. 2. – P.77-86.

  6. Kalinin D.A. Speed ​​of ciphers «KALINA» and AES / Kalinin D.A., Kozina G.L. // Radioelectronics. Informatics. Management. – 2013. – No. 1. – P.62-65.

  7. Nikulishchev G.I. Anonymity as a criterion for assessing the security of blind electronic digital signature protocols / Nikulishchev G.I., Kozyna G.L. // Legal, regulatory and metrological support of the information security system in Ukraine. – 2012. – No. 2.–P.59-65.

  8. Nikulishchev G.I. Elliptic and hyperelliptic curves over finite vector fields / Nikulishchev G.I., Kozina G.L., Nelasa G.V. // Applied Radio Electronics. – Kharkov, 2011, Vol. 10, – No. 2. P. 188-191.

  9. Kozina G.L. Collective signing of various documents by unequal participants in the protocol / G.L. Kozina, L.M. Karpukov, D.M. Pisa, M.A. Moldovyan //Information protection: scientific and technical journal. – K:DUICT, 2009, - No. 3. – P. 74-80.

  10. Kozina, G. Discrete Optimization Problems with Interval Data: Pareto Set of Solutions or Set of Weak Solutions? Reliable Computing. 2004. - V. 10, N 6, pp. 469 - 487.

  11. Kozyna G.L. Research of extremal problems on graphs with interval parameters. Bulletin of Zaporizhzhia State University. N 1, 1999, pp. 63-68.

  12. Kozina, G.L. and Perepelitsa, V.A. Interval Spanning Trees Problem: Solvability and Computational Complexity. Interval Computations, 1, 1994, pp. 42-50.

Contacts

Address:

69063, Ukraine, Zaporizhzhia, Zhukovsky str. 64, building 3

Classroom:

32nd

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Past events
SEP 29 Tue
Academic Council Meeting
audio 253
SEP 25 Fri
International conference within the framework of the «Night of Science»!
SEP 25 Fri
«Science Night-2026» at Zaporizhzhia Polytechnic
SEP 25 Fri
2nd International Scientific and Practical Conference «Business Ecosystems: Sustainable Developme...
SEP 25 Fri
Charity campaign «Help at every step»
SEP 25 Fri
2nd International Scientific and Practical Conference «Business Ecosystems: Sustainable Developme...
SEP 24 Thu
Children’s Scientific Conference «My New Ukraine»
SECTION 4. Computer
SEP 23 Wed
Children’s Scientific Conference «My New Ukraine»
SECTION 3. Technical
SEP 23 Wed
A word that tempers the spirit: a creative meeting with Valentyna Vislenko on the Day of Defender...
Aud. 513
SEP 22 Tue
Children’s Scientific Conference «My New Ukraine»
SECTION 2. Humanitarian
SEP 21 Mon
We are building a student bridge between America and Ukraine!
Zoom
SEP 21 Mon
Children’s Scientific Conference «My New Ukraine»
SECTION 1. Economic
SEP 21 Mon
Viewing of the documentary «Kherson. The Resistance Continues» for Peace Day
Education Hub, Room 513
SEP 20 Sun
All-Ukrainian Student and Pupil Competition in Translation Studies «Between the Lines: Think, Tra...
SEP 20 Sun
Global Youth Survey in preparation for the Post-2030 Youth Education and Learning Agenda
SEP 19 Sat
The additional enrollment for bachelor’s degrees is coming to an end!
SEP 19 Sat
Additional intake for bachelor’s degrees in September!
SEP 18 Fri
InduTwin Language Team Task International Virtual Academic Mobility Program for Bachelor’s ...
SEP 17 Thu
Increasing the energy efficiency of a house using HERZ equipment
SEP 14 Mon
Recruitment for clubs of the Children’s and Youth Scientific University «Zaporizhzhia Polyt...
SEP 11 Fri
We invite you to participate in the IdeasLab acceleration program!
SEP 10 Thu
Access to licensed software through the Autodesk Education academic program!
SEP 04 Fri
English Speaking Club with native speakers on the topic of «Stereotypes»
Youth hub «FREETIME»
SEP 04 Fri
Are you a freshman? You’re not really a student without a formal initiation!