Cryptology ePrint Archive: BibTeX Citation of Report 2012/261

@misc{cryptoeprint:2012:261,
    author = {Michael Gerbush and Allison Lewko and Adam O'Neill and Brent Waters},
    title = {Dual Form Signatures: An Approach for Proving Security from Static Assumptions},
    howpublished = {Cryptology ePrint Archive, Report 2012/261},
    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.