@misc{cryptoeprint:2015:812,
    author = {Alex Biryukov and Léo Perrin and Aleksei Udovenko},
    title = {The Secret Structure of the S-Box of Streebog, Kuznechik and Stribob},
    howpublished = {Cryptology ePrint Archive, Report 2015/812},
    year = {2015},
    url = {https://eprint.iacr.org/2015/812},
}