Cryptology ePrint Archive: BibTeX Citation of Report 2009/583

@misc{cryptoeprint:2009:583,
    author = {Charles Bouillaguet and Jean-Charles  Faugère and Pierre-Alain Fouque and Ludovic Perret},
    title = {Differential-Algebraic Algorithms for the Isomorphism of Polynomials Problem},
    howpublished = {Cryptology ePrint Archive, Report 2009/583},
    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.