Cryptology ePrint Archive: BibTeX Citation of Report 2008/072

@misc{cryptoeprint:2008:072,
    author = {Alexandre M. Deusajute and Paulo S. L. M. Barreto},
    title = {The SIP Security Enhanced by Using Pairing-assisted Massey-Omura Signcryption},
    howpublished = {Cryptology ePrint Archive, Report 2008/072},
    year = {2008},
    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.