@misc{cryptoeprint:2019:007,
    author = {Matthias Hamann and Matthias Krause},
    title = {Tight Security Bounds for Generic Stream Cipher Constructions},
    howpublished = {Cryptology ePrint Archive, Report 2019/007},
    year = {2019},
    url = {https://eprint.iacr.org/2019/007},
}