Cryptology ePrint Archive: BibTeX Citation of Report 2014/309

@misc{cryptoeprint:2014:309,
    author = {Craig Gentry and Allison Lewko and Amit Sahai and Brent Waters},
    title = {Indistinguishability Obfuscation from the Multilinear Subgroup Elimination Assumption},
    howpublished = {Cryptology ePrint Archive, Report 2014/309},
    year = {2014},
    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.