Cryptology ePrint Archive: BibTeX Citation of Report 2013/610

@misc{cryptoeprint:2013:610,
    author = {Jeroen Delvaux and Ingrid Verbauwhede},
    title = {Key-recovery Attacks on Various RO PUF Constructions via Helper Data Manipulation},
    howpublished = {Cryptology ePrint Archive, Report 2013/610},
    year = {2013},
    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.