@misc{cryptoeprint:2018:1120,
    author = {Masahito Gotaishi and Shigeo Tsujii},
    title = {Organizational Cryptography for Access Control},
    howpublished = {Cryptology ePrint Archive, Report 2018/1120},
    year = {2018},
    url = {https://eprint.iacr.org/2018/1120},
}