Cryptology ePrint Archive: BibTeX Citation of Report 2013/324

@misc{cryptoeprint:2013:324,
    author = {Anne Canteaut and María Naya-Plasencia and Bastien Vayssiere},
    title = {Sieve-in-the-Middle: Improved MITM Attacks (Full Version)},
    howpublished = {Cryptology ePrint Archive, Report 2013/324},
    year = {2013},
    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.