Cryptology ePrint Archive: BibTeX Citation of Report 1997/003

@misc{cryptoeprint:1997:003,
    author = {Claude Crepeau},
    title = {Efficient Cryptographic Protocols Based on Noisy Channels.},
    howpublished = {Cryptology ePrint Archive, Report 1997/003},
    year = {1997},
    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.