Cryptology ePrint Archive: BibTeX Citation of Report 2015/805

@misc{cryptoeprint:2015:805,
    author = {Tsutomu Iijima and Fumiyuki Momose and Jinhui Chao},
    title = {A classification of elliptic curves with respect to the GHS attack in odd characteristic},
    howpublished = {Cryptology ePrint Archive, Report 2015/805},
    year = {2015},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.