Cryptology ePrint Archive: BibTeX Citation of Report 2010/042

@misc{cryptoeprint:2010:042,
    author = {Qingfeng Cheng and Chuangui Ma and Fushan Wei},
    title = {A modified eCK model with stronger security for tripartite authenticated key exchange},
    howpublished = {Cryptology ePrint Archive, Report 2010/042},
    year = {2010},
    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.