Cryptology ePrint Archive: BibTeX Citation of Report 2015/851

@misc{cryptoeprint:2015:851,
    author = {Benoît Cogliati and Yannick Seurin},
    title = {Beyond-Birthday-Bound Security for Tweakable Even-Mansour Ciphers with Linear Tweak and Key Mixing},
    howpublished = {Cryptology ePrint Archive, Report 2015/851},
    year = {2015},
    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.