Cryptology ePrint Archive: BibTeX Citation of Report 2014/349

@misc{cryptoeprint:2014:349,
    author = {Eli Ben-Sasson and Alessandro Chiesa and Christina Garman and Matthew Green and Ian Miers and Eran Tromer and Madars Virza},
    title = {Zerocash: Decentralized Anonymous Payments from Bitcoin},
    howpublished = {Cryptology ePrint Archive, Report 2014/349},
    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.