Cryptology ePrint Archive: BibTeX Citation of Report 2008/399

@misc{cryptoeprint:2008:399,
    author = {Arpita Patra and Ashish Choudhary and C. Pandu Rangan},
    title = {Round Efficient Unconditionally Secure Multiparty Computation Protocol},
    howpublished = {Cryptology ePrint Archive, Report 2008/399},
    year = {2008},
    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.