Cryptology ePrint Archive: BibTeX Citation of Report 2014/551

@misc{cryptoeprint:2014:551,
    author = {Daniel Augot and Pierre-Alain Fouque and Pierre Karpman},
    title = {Diffusion Matrices from Algebraic-Geometry Codes with Efficient SIMD Implementation},
    howpublished = {Cryptology ePrint Archive, Report 2014/551},
    year = {2014},
    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.