Cryptology ePrint Archive: BibTeX Citation of Report 2011/692

@misc{cryptoeprint:2011:692,
    author = {Cheng Chen and Zhenfeng Zhang and Dengguo Feng},
    title = {Fully Secure (Doubly-)Spatial Encryption under Simpler Assumptions},
    howpublished = {Cryptology ePrint Archive, Report 2011/692},
    year = {2011},
    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.