Kalyna block cipher

This repository contains an implementation of the Kalyna block cipher as described in our paper. To cite this work, please use the following reference:

@misc{gewehr2026kalynablockcipherdesign,
      title={Kalyna Block Cipher: From Design Space Exploration to ASIC Design}, 
      author={Carlos Gewehr and Levent Aksoy and Mariia Rodinko and Roman Oliynykov and Samuel Pagliarini},
      year={2026},
      eprint={2607.22269},
      archivePrefix={arXiv},
      primaryClass={cs.CR},
      url={https://arxiv.org/abs/2607.22269}, 
}

This work was supported by the National Science Foundation under Award No. 2414083, by the U.S. National Academy of Sciences (NAS) and the Office of Naval Research Global (ONRG) through the Science and Technology Center in Ukraine (STCU) under STCU project number 7127 in the framework of the International Multilateral Partnerships for Resilient Education and Science System in Ukraine (IMPRESS-U), and by the Estonian Research Council through the funding of the international multilateral partnership IMPRESS-U project "EAGER: Hardware-Efficient Realization of UA Cryptographic Standards".