Cryptology ePrint Archive: BibTeX Citation of Report 2015/379

@misc{cryptoeprint:2015:379,
    author = {Jingwei Li, Anna Squicciarini, Dan Lin, Smitha Sundareswaran, Chunfu Jia},
    title = {MMBcloud-tree: Authenticated Index for Verifiable Cloud Service Selection},
    howpublished = {Cryptology ePrint Archive, Report 2015/379},
    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.