Cryptology ePrint Archive: BibTeX Citation of Report 2015/739

@misc{cryptoeprint:2015:739,
    author = {Hung  Dang and Yun Long Chong and Francois Brun and Ee-Chien Chang},
    title = {Fine-grained sharing of encrypted sensor data over cloud storage with key aggregation},
    howpublished = {Cryptology ePrint Archive, Report 2015/739},
    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.