@misc{cryptoeprint:2015:779,
    author = {Masao KASAHARA},
    title = {A Simple Scheme, for Strengthening Product-sum Type PKC},
    howpublished = {Cryptology ePrint Archive, Report 2015/779},
    year = {2015},
    url = {https://eprint.iacr.org/2015/779},
}