Semigroup of Matrices over GF{2s} and its Relation to AES. - Otokar Grosek; Julius Siska (Comput. Artif. Intell., 2003)

Extremal Generalized S-Boxes. - Otokar Grosek; Ladislav Satko; Karol Nemoga (Comput. Artif. Intell., 2003)

On Non-Polynomial Latin Squares. - Otokar Grosek; Peter Horák; Tran van Trung (Des. Codes Cryptogr., 2004)

A new matrix test for randomness. - Otokar Grosek; Milan Vojvoda; Róbert Krchnavý (Computing, 2009)

On complexity of round transformations. - Otokar Grosek; Peter Horák; Pavol Zajac (Discret. Math., 2009)

Automated Cryptanalysis. - Otokar Grosek; Pavol Zajac (Encyclopedia of Artificial Intelligence, 2009)

Automated Cryptanalysis of Classical Ciphers. - Otokar Grosek; Pavol Zajac (Encyclopedia of Artificial Intelligence, 2009)

Towards a Solution of the Golomb-Welch Conjecture ? - Peter Horák; Otokar Grosek (CoRR, 2012)

On quasigroups with few associative triples. - Otokar Grosek; Peter Horák (Des. Codes Cryptogr., 2012)

Coprime solutions to ax≡b (mod n). - Otokar Grosek; Stefan Porubský (J. Math. Cryptol., 2013)

A new approach towards the Golomb-Welch conjecture. - Peter Horák; Otokar Grosek (Eur. J. Comb., 2014)

On a mnemonic construction of permutations. - Eugen Antal; Otokar Grosek; Peter Horák (J. Math. Cryptol., 2017)

On generating invertible circulant binary matrices with a prescribed number of ones. - Tomás Fabsic; Otokar Grosek; Karol Nemoga; Pavol Zajac (Cryptogr. Commun., 2018)

Cryptology in the Slovak State During WWII. - Eugen Antal; Pavol Zajac; Otokar Grosek (HistoCrypt, 2019)

Remarks on breaking the Vigenère autokey cipher. - Otokar Grosek; Eugen Antal; Tomás Fabsic (Cryptologia, 2019)

Diplomatic Ciphers Used by Slovak Attaché During the WW2. - Eugen Antal; Pavol Zajac; Otokar Grosek (HistoCrypt, 2020)

A Cipher Based on Prefix Codes. - Otokar Grosek; Viliam Hromada; Peter Horák (Sensors, 2021)

A Note on the Maximum Size of a Prefix Code. - Viliam Hromada; Otokar Grosek (IEEE Access, 2022)

On the Maximum Size of a Prefix Code. - Peter Horák; Viliam Hromada; Otokar Grosek (IEEE Trans. Inf. Theory, 2023)