Cryptology ePrint Archive: BibTeX Citation of Report 2015/354

@misc{cryptoeprint:2015:354,
    author = {Jacek Samotyja and Kerstin Lemke-Rust and Markus Ullmann},
    title = {SEMA and MESD Leakage of TinyECC 2.0 on a LOTUS Sensor Node},
    howpublished = {Cryptology ePrint Archive, Report 2015/354},
    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.