Cryptology ePrint Archive: BibTeX Citation of Report 2013/856

@misc{cryptoeprint:2013:856,
    author = {Michel Abdalla and Pierre-Alain Fouque and Vadim Lyubashevsky and Mehdi Tibouchi},
    title = {Tightly-Secure Signatures From Lossy Identification Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2013/856},
    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.