Cryptology ePrint Archive: BibTeX Citation of Report 2014/307

@misc{cryptoeprint:2014:307,
    author = {Alessandro Barenghi and Gerardo Pelosi and  Francesco Regazzoni},
    title = {Simulation-Time Security Margin Assessment against Power-Based Side Channel Attacks},
    howpublished = {Cryptology ePrint Archive, Report 2014/307},
    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.