Cryptology ePrint Archive: BibTeX Citation of Report 2015/104

@misc{cryptoeprint:2015:104,
    author = {Rafael Dowsley and Jörn Müller-Quade and Tobias Nilges},
    title = {Weakening the Isolation Assumption of Tamper-proof Hardware Tokens},
    howpublished = {Cryptology ePrint Archive, Report 2015/104},
    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.