Cryptology ePrint Archive: BibTeX Citation of Report 2012/050

@misc{cryptoeprint:2012:050,
    author = {Jeremy Constantin and Andreas Burg and Frank K. Gurkaynak},
    title = {Investigating the Potential of Custom Instruction Set Extensions for SHA-3 Candidates on a 16-bit Microcontroller Architecture},
    howpublished = {Cryptology ePrint Archive, Report 2012/050},
    year = {2012},
    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.