Cryptology ePrint Archive: BibTeX Citation of Report 2005/097

@misc{cryptoeprint:2005:097,
    author = {Yassine Lakhnech and Laurent Mazare},
    title = {Computationally Sound Verification of Security Protocols Using Diffie-Hellman Exponentiation},
    howpublished = {Cryptology ePrint Archive, Report 2005/097},
    year = {2005},
    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.