@misc{cryptoeprint:2016:1049,
    author = {Michal Kulis and Pawel Lorek and Filip Zagorski},
    title = {Randomized stopping times and provably secure pseudorandom permutation generators},
    howpublished = {Cryptology ePrint Archive, Report 2016/1049},
    year = {2016},
    url = {https://eprint.iacr.org/2016/1049},
}