Cryptology ePrint Archive: BibTeX Citation of Report 2009/634

@misc{cryptoeprint:2009:634,
    author = {Charles Bouillaguet and Orr Dunkelman and Ga\"etan Leurent and Pierre-Alain Fouque},
    title = {Attacks on Hash Functions based on Generalized Feistel - Application to Reduced-Round Lesamnta and SHAvite-3_{512}},
    howpublished = {Cryptology ePrint Archive, Report 2009/634},
    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.