Cryptology ePrint Archive: BibTeX Citation of Report 2010/429

@misc{cryptoeprint:2010:429,
    author = {Geovandro C. C. F. Pereira and Marcos A. Simplício Jr and Michael Naehrig and Paulo S. L. M. Barreto},
    title = {A Family of Implementation-Friendly BN Elliptic Curves},
    howpublished = {Cryptology ePrint Archive, Report 2010/429},
    year = {2010},
    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.