Cryptology ePrint Archive: BibTeX Citation of Report 2007/245

@misc{cryptoeprint:2007:245,
    author = {Mikhail J. Atallah and Marina Blanton and Keith B. Frikken},
    title = {Incorporating Temporal Capabilities in Existing Key Management Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2007/245},
    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.