Cryptology ePrint Archive: BibTeX Citation of Report 2015/845

@misc{cryptoeprint:2015:845,
    author = {Zvika Brakerski and Craig Gentry and Shai Halevi and Tancrède Lepoint and Amit Sahai and Mehdi Tibouchi},
    title = {Cryptanalysis of the Quadratic Zero-Testing of GGH},
    howpublished = {Cryptology ePrint Archive, Report 2015/845},
    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.