@misc{cryptoeprint:2021:293,
    author = {Nicolas Bordes and Joan Daemen and Daniël Kuijsters and Gilles Van Assche},
    title = {Thinking Outside the Superbox},
    howpublished = {Cryptology ePrint Archive, Report 2021/293},
    year = {2021},
    url = {https://eprint.iacr.org/2021/293},
}