Cryptology ePrint Archive: BibTeX Citation of Report 2008/316

@misc{cryptoeprint:2008:316,
    author = {Dan Boneh and David Freeman and Jonathan Katz and Brent Waters},
    title = {Signing a Linear Subspace: Signature Schemes for Network Coding},
    howpublished = {Cryptology ePrint Archive, Report 2008/316},
    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.