Cryptology ePrint Archive: BibTeX Citation of Report 2015/727

@misc{cryptoeprint:2015:727,
    author = {Josep Balasch and Benedikt Gierlichs and Oscar Reparaz and Ingrid Verbauwhede},
    title = {DPA, Bitslicing and Masking at 1 GHz},
    howpublished = {Cryptology ePrint Archive, Report 2015/727},
    year = {2015},
    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.