Cryptology ePrint Archive: BibTeX Citation of Report 2009/228

@misc{cryptoeprint:2009:228,
    author = {Benedikt Gierlichs and Lejla Batina and Bart Preneel and Ingrid Verbauwhede},
    title = {Revisiting Higher-Order DPA Attacks: Multivariate Mutual Information Analysis},
    howpublished = {Cryptology ePrint Archive, Report 2009/228},
    year = {2009},
    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.