Cryptology ePrint Archive: BibTeX Citation of Report 2008/039

@misc{cryptoeprint:2008:039,
    author = {Shuhong Wang and Reihaneh Safavi-Naini},
    title = {New Results on Unconditionally Secure Multireceiver Manual Authentication},
    howpublished = {Cryptology ePrint Archive, Report 2008/039},
    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.