Cryptology ePrint Archive: BibTeX Citation of Report 2008/457

@misc{cryptoeprint:2008:457,
    author = {Rafael Dowsley and Jeroen van de Graaf and Jörn Müller-Quade and Anderson C. A. Nascimento},
    title = {On the Composability of Statistically Secure Bit Commitments},
    howpublished = {Cryptology ePrint Archive, Report 2008/457},
    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.