Cryptology ePrint Archive: BibTeX Citation of Report 2008/280

@misc{cryptoeprint:2008:280,
    author = {Jean-Luc Beuchat and Hiroshi Doi and Kaoru Fujita and Atsuo Inomata and Piseth Ith and Akira Kanaoka and Masayoshi Katouno and Masahiro Mambo and Eiji Okamoto and Takeshi Okamoto and Takaaki Shiga and Masaaki Shirase and Ryuji Soga and Tsuyoshi Takagi and Ananda Vithanage and Hiroyasu Yamamoto},
    title = {FPGA and ASIC Implementations of the $\eta_T$ Pairing in Characteristic Three},
    howpublished = {Cryptology ePrint Archive, Report 2008/280},
    year = {2008},
    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.