Cryptology ePrint Archive: BibTeX Citation of Report 2012/658

@misc{cryptoeprint:2012:658,
    author = {Eike Kiltz and Krzysztof Pietrzak and Mario Szegedy},
    title = {Digital Signatures with Minimal Overhead from Indifferentiable Random Invertible Functions},
    howpublished = {Cryptology ePrint Archive, Report 2012/658},
    year = {2012},
    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.