@misc{cryptoeprint:2017:161,
    author = {Giorgia Azzurra Marson and Bertram Poettering},
    title = {Security Notions for Bidirectional Channels},
    howpublished = {Cryptology ePrint Archive, Report 2017/161},
    year = {2017},
    url = {https://eprint.iacr.org/2017/161},
}