Cryptology ePrint Archive: BibTeX Citation of Report 2013/080

@misc{cryptoeprint:2013:080,
    author = {Grégory Landais and Jean-Pierre Tillich},
    title = {An efficient attack of a McEliece cryptosystem variant based on convolutional codes},
    howpublished = {Cryptology ePrint Archive, Report 2013/080},
    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.