Cryptology ePrint Archive: BibTeX Citation of Report 2007/131

@misc{cryptoeprint:2007:131,
    author = {Mohammad Reza Reyhanitabar and Shuhong Wang and Reihaneh Safavi-Naini},
    title = {Noninteractive Manual Channel  Message Authentication Based On eTCR Hash Functions},
    howpublished = {Cryptology ePrint Archive, Report 2007/131},
    year = {2007},
    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.