Cryptology ePrint Archive: BibTeX Citation of Report 2009/292

@misc{cryptoeprint:2009:292,
    author = {Daniel J. Bernstein and Tanja Lange and Ruben Niederhagen and Christiane Peters and Peter Schwabe},
    title = {Implementing Wagner's generalized birthday attack against the SHA-3 round-1 candidate FSB},
    howpublished = {Cryptology ePrint Archive, Report 2009/292},
    year = {2009},
    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.