Cryptology ePrint Archive: BibTeX Citation of Report 2009/167

@misc{cryptoeprint:2009:167,
    author = {François Arnault and Thierry Berger and Cédric Lauradoux and Marine Minier and Benjamin Pousse},
    title = {A new approach for FCSRs},
    howpublished = {Cryptology ePrint Archive, Report 2009/167},
    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.