Cryptology ePrint Archive: BibTeX Citation of Report 2015/583

@misc{cryptoeprint:2015:583,
    author = {Roel Maes and Vincent van der Leest and Erik van der Sluis and Frans Willems},
    title = {Secure Key Generation from Biased PUFs},
    howpublished = {Cryptology ePrint Archive, Report 2015/583},
    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.