Cryptology ePrint Archive: BibTeX Citation of Report 2008/251

@misc{cryptoeprint:2008:251,
    author = {Sebastian Gajek and Mark Manulis and Olivier Pereira and Ahmad-Reza Sadeghi and Jörg Schwenk},
    title = {Universally Composable Security Analysis of TLS---Secure Sessions with Handshake and Record Layer Protocols},
    howpublished = {Cryptology ePrint Archive, Report 2008/251},
    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.