Cryptology ePrint Archive: BibTeX Citation of Report 2015/712

@misc{cryptoeprint:2015:712,
    author = {David Bernhard and Bogdan Warinschi},
    title = {On Limitations of the Fiat­–Shamir Transformation},
    howpublished = {Cryptology ePrint Archive, Report 2015/712},
    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.