News:

• Jul. 2021: Our joint work "Efficient Generation of Quadratic Cyclotomic Classes for Shortest Quadratic Decompositions of Polynomials" with Eda Tekin is published in Cryptography and Communications.

• Feb. 2021: I give SİB 533 Simetrik Şifreleme Algoritmaları ve Güvenlik Analizleri at Gebze Technical University for the 2020-2021 Spring Term. Please check your student email accounts regularly.

• Jan. 2021: My work "A Generalization of the Subfield Construction" is available online.

• Oct. 2020: I give SİB 532 Kriptografide İleri Konular at Gebze Technical University for the 2020-2021 Fall Term. Please check your student email accounts regularly.

• Sep. 2020: My popular science article "Kuantum Bilgisayarlar ve Kriptoloji" is available in BİLGEM Teknoloji 10 (September 2020).

• Feb. 2020: Our joint work "Subspace Packings - Constructions and Bounds" with Tuvi Etzion, Sascha Kurz, and Ferruh Özbudak is published in Designs, Codes and Cryptography.

• Sep. 2019: I give BGM 501 Kriptolojiye Giriş at Istanbul Şehir University for the 2019-2020 Fall Term. All announcements will be on emails. Please check your official email accounts regularly.

• Dec. 2018: My Ph.D. thesis received METU M. Parlar Thesis of the Year Award.

Research Work:

Here is a list of my recent research articles:

1. K. Otal and E. Tekin, "Efficient generation of quadratic cyclotomic classes for shortest quadratic decompositions of polynomials", Cryptography and Communications (2021). (doi)

2. K. Otal, "A generalization of the subfield construction", IACR eprint archive (2021/075). (eprint)

3. T. Etzion, S. Kurz, K. Otal, and F. Özbudak, "Subspace packings - constructions and bounds", Designs, Codes and Cryptography 88, 1781–1810 (2020). (doi) (preprint)

4. T. Etzion, S. Kurz, K. Otal, and F. Özbudak, "Subspace packings", The 11.th International Workshop on Coding and Cryptography (WCC 2019), Saint-Jacut-de-la-Mer, France, March 31 - April 5, 2019. (preprint)

5. K. Otal, F. Özbudak, and W. Willems, "Self-duality of generalized twisted Gabidulin codes", Advances in Mathematics of Communications 12, 707–721 (2018). (doi) (preprint)

6. E. Martínez-Moro, K. Otal, and F. Özbudak, "Additive cyclic codes over finite commutative chain rings", Discrete Mathematics 341, 1873–1884 (2018). (doi) (preprint)

7. K. Otal and F. Özbudak, "Some new non-additive maximum rank distance codes", Finite Fields and Their Applications 50, 293–303 (2018). (doi)

8. K. Otal and F. Özbudak, "Constructions of cyclic subspace codes and maximum rank distance codes", In: M. Greferath, M. Pavcevic, N. Silberstein, and A. Vazquez-Castro (editors), Network Coding and Subspace Designs, Signals and Communication Technology, Springer, 43–66 (2018). (doi)

9. K. Otal and F. Özbudak, "Cyclic subspace codes via subspace polynomials", Designs, Codes and Cryptography 85, 191–204 (2017). (doi)

10. K. Otal and F. Özbudak, "Additive rank metric codes", IEEE Transactions on Information Theory 63, 164–168 (2017). (doi)

11. K. Otal and F. Özbudak, "Explicit constructions of some non-Gabidulin linear MRD codes", Advances in Mathematics of Communications 10, 589–600 (2016). (doi)

Professional Experience:

• Aug. 2018 – Present: Senior Researcher, TÜBİTAK BİLGEM, Kocaeli

• Oct. 2017 – Apr. 2018: Visiting Researcher, Department of Computer Science, Technion, Haifa

• Mar. 2016 – Apr. 2016: Visiting Researcher, Institute of Mathematics, University of Valladolid, Valladolid

• Sep. 2012 – Aug. 2018: Teaching & Research Assistant, Department of Mathematics, METU, Ankara

• Sep. 2010 – Aug. 2012: Teaching & Research Assistant, Department of Mathematics, TOBB ETU, Ankara

Academic Degrees:

• Sep. 2018: Ph.D. in Cryptography, METU

• Sep. 2012: M.S. in Mathematics, TOBB ETU

• Sep. 2010: B.S. in Mathematics, TOBB ETU