Cryptology ePrint Archive: BibTeX Citation of Report 2009/541

@misc{cryptoeprint:2009:541,
    author = {Daniel V. Bailey and Lejla Batina and Daniel J. Bernstein and Peter Birkner and Joppe W. Bos and Hsieh-Chung Chen and Chen-Mou Cheng and Gauthier van Damme and Giacomo de Meulenaer and Luis Julian Dominguez Perez and Junfeng Fan and Tim Güneysu and Frank Gurkaynak and Thorsten Kleinjung and Tanja Lange and Nele Mentens and Ruben Niederhagen and Christof Paar and Francesco Regazzoni and Peter Schwabe and Leif Uhsadel and Anthony Van Herrewege and Bo-Yin Yang},
    title = {Breaking ECC2K-130},
    howpublished = {Cryptology ePrint Archive, Report 2009/541},
    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.