@misc{cryptoeprint:2021:257,
    author = {Shoichi Kamada},
    title = {Cryptanalysis of the quantum public-key cryptosystem OTU  under heuristics from Szemer\'{e}di-type statements},
    howpublished = {Cryptology ePrint Archive, Report 2021/257},
    year = {2021},
    url = {https://eprint.iacr.org/2021/257},
}