Cryptology ePrint Archive: BibTeX Citation of Report 2013/239

@misc{cryptoeprint:2013:239,
    author = {Craig Gentry and Kenny Goldman and Shai Halevi and Charanjit Julta and Mariana Raykova and Daniel Wichs},
    title = {Optimizing ORAM and Using it Efficiently for Secure Computation},
    howpublished = {Cryptology ePrint Archive, Report 2013/239},
    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.