Cryptology ePrint Archive: BibTeX Citation of Report 2014/857

@misc{cryptoeprint:2014:857,
    author = {Jonathan Katz and Andrew Miller and Elaine Shi},
    title = {Pseudonymous Broadcast and Secure Computation from Cryptographic Puzzles},
    howpublished = {Cryptology ePrint Archive, Report 2014/857},
    year = {2014},
    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.