Cryptology ePrint Archive: BibTeX Citation of Report 2009/374

@misc{cryptoeprint:2009:374,
    author = {Alex Biryukov and Orr Dunkelman and Nathan Keller and Dmitry Khovratovich and Adi Shamir},
    title = {Key Recovery Attacks of Practical Complexity on AES Variants With Up To 10 Rounds},
    howpublished = {Cryptology ePrint Archive, Report 2009/374},
    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.