@misc{cryptoeprint:2020:1493,
    author = {Daniel J. Bernstein},
    title = {Verified fast formulas for control bits for permutation networks},
    howpublished = {Cryptology ePrint Archive, Report 2020/1493},
    year = {2020},
    url = {https://eprint.iacr.org/2020/1493},
}