Cryptology ePrint Archive: BibTeX Citation of Report 2006/315

@misc{cryptoeprint:2006:315,
    author = {Michael Backes and Joern-Mueller Quade and Dominique Unruh},
    title = {On the Necessity of Rewinding in Secure Multiparty Computation},
    howpublished = {Cryptology ePrint Archive, Report 2006/315},
    year = {2006},
    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.