Cryptology ePrint Archive: BibTeX Citation of Report 2010/589

@misc{cryptoeprint:2010:589,
    author = {Christina Boura and Anne Canteaut and Christophe De Canni\`ere},
    title = {Higher-order differential properties of Keccak and Luffa},
    howpublished = {Cryptology ePrint Archive, Report 2010/589},
    year = {2010},
    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.