@misc{cryptoeprint:2018:986,
    author = {Sam Kim and David J. Wu},
    title = {Watermarking PRFs from Lattices: Stronger Security via Extractable PRFs},
    howpublished = {Cryptology ePrint Archive, Report 2018/986},
    year = {2018},
    url = {https://eprint.iacr.org/2018/986},
}