Cryptology ePrint Archive: BibTeX Citation of Report 2012/139

@misc{cryptoeprint:2012:139,
    author = {Ta Vinh Thong },
    title = {Formal verication of secure ad-hoc network routing protocols using deductive model-checking},
    howpublished = {Cryptology ePrint Archive, Report 2012/139},
    year = {2012},
    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.