Cryptology ePrint Archive: BibTeX Citation of Report 2015/491

@misc{cryptoeprint:2015:491,
    author = {Nishanth Chandran and Melissa Chase and Feng-Hao Liu and Ryo Nishimaki and Keita Xagawa},
    title = {Re-encryption, functional re-encryption, and multi-hop re-encryption:  A framework for achieving obfuscation-based security and instantiations  from lattices},
    howpublished = {Cryptology ePrint Archive, Report 2015/491},
    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.