Cryptology ePrint Archive: BibTeX Citation of Report 2005/129

@misc{cryptoeprint:2005:129,
    author = {Zhaohui Cheng and Manos Nistazakis and Richard Comley and Luminita Vasiu},
    title = {On The Indistinguishability-Based Security Model of Key Agreement Protocols-Simple Cases},
    howpublished = {Cryptology ePrint Archive, Report 2005/129},
    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.