Cryptology ePrint Archive: BibTeX Citation of Report 2014/413

@misc{cryptoeprint:2014:413,
    author = {Josep Balasch and Benedikt Gierlichs and Vincent Grosso and Oscar Reparaz and François-Xavier Standaert},
    title = {On the Cost of Lazy Engineering for Masked Software Implementations},
    howpublished = {Cryptology ePrint Archive, Report 2014/413},
    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.