Cryptology ePrint Archive: BibTeX Citation of Report 2007/434

@misc{cryptoeprint:2007:434,
    author = {Xibin Lin and Chang-An Zhao and Fangguo Zhang and Yanming Wang},
    title = {Computing the Ate Pairing on Elliptic Curves with Embedding Degree $k=9$},
    howpublished = {Cryptology ePrint Archive, Report 2007/434},
    year = {2007},
    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.