Cryptology ePrint Archive: BibTeX Citation of Report 2010/466

@misc{cryptoeprint:2010:466,
    author = {Benwen Zhu and Bo Zhu and Kui Ren},
    title = {PEKSrand: Providing Predicate Privacy in Public-key Encryption with Keyword Search},
    howpublished = {Cryptology ePrint Archive, Report 2010/466},
    year = {2010},
    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.