Cryptology ePrint Archive: BibTeX Citation of Report 2009/368

@misc{cryptoeprint:2009:368,
    author = {Klaas Ole Kuertz and Henning Schnoor and Thomas Wilke},
    title = {A Simulation-Based Treatment of Authenticated Message Exchange},
    howpublished = {Cryptology ePrint Archive, Report 2009/368},
    year = {2009},
    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.