Cryptology ePrint Archive: BibTeX Citation of Report 2015/191

@misc{cryptoeprint:2015:191,
    author = {Xiao Shaun Wang, Chang Liu, Kartik Nayak, Yan Huang and Elaine Shi},
    title = {iDASH Secure Genome Analysis Competition Using ObliVM},
    howpublished = {Cryptology ePrint Archive, Report 2015/191},
    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.