@misc{cryptoeprint:2017:786,
    author = {Giorgia Azzurra Marson and Bertram Poettering},
    title = {With one it is easy, with many it gets complicated: Understanding Channel Security for Groups},
    howpublished = {Cryptology ePrint Archive, Report 2017/786},
    year = {2017},
    url = {https://eprint.iacr.org/2017/786},
}