@misc{cryptoeprint:2017:429,
    author = {Christian Badertscher and Christian Matt and Ueli Maurer},
    title = {Strengthening Access Control Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2017/429},
    year = {2017},
    url = {https://eprint.iacr.org/2017/429},
}