Cryptology ePrint Archive: BibTeX Citation of Report 2006/108

@misc{cryptoeprint:2006:108,
    author = {Chunxiang Gu and Yuefei Zhu and Yajuan Zhang},
    title = {Efficient Public Key Encryption with Keyword Search Schemes from Pairings},
    howpublished = {Cryptology ePrint Archive, Report 2006/108},
    year = {2006},
    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.