Cryptology ePrint Archive: BibTeX Citation of Report 2015/032

@misc{cryptoeprint:2015:032,
    author = {Zvika Brakerski and Vinod Vaikuntanathan},
    title = {Constrained Key-Homomorphic PRFs from Standard Lattice Assumptions Or: How to Secretly Embed a Circuit in Your PRF},
    howpublished = {Cryptology ePrint Archive, Report 2015/032},
    year = {2015},
    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.