@misc{cryptoeprint:2017:403,
    author = {Masaaki Shirase},
    title = {Condition on composite numbers easily factored with elliptic curve method},
    howpublished = {Cryptology ePrint Archive, Report 2017/403},
    year = {2017},
    url = {https://eprint.iacr.org/2017/403},
}