Cryptology ePrint Archive: BibTeX Citation of Report 2013/198

@misc{cryptoeprint:2013:198,
    author = {Zhizhou Li and Ten H. Lai},
    title = {On Evaluating Circuits with Inputs Encrypted by Different Fully Homomorphic Encryption Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2013/198},
    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.