@misc{cryptoeprint:2020:531,
    author = {Serge Vaudenay},
    title = {Centralized or Decentralized? The Contact Tracing Dilemma},
    howpublished = {Cryptology ePrint Archive, Report 2020/531},
    year = {2020},
    url = {https://eprint.iacr.org/2020/531},
}