1. Alsdurf, H., et al.: Covi white paper (2020)
2. Avitabile, G., Botta, V., Iovino, V., Visconti, I.: Towards defeating mass surveillance and sars-cov-2: the pronto-c2 fully decentralized automatic contact tracing system. Cryptology ePrint Archive, Report 2020/493 (2020). https://eprint.iacr.org/2020/493
3. Fraunhofer AISEC: Pandemic contact tracing apps: Dp-3t, pepp-pt ntk, and Robert from a privacy perspective. Cryptology ePrint Archive, Report 2020/489 (2020). https://eprint.iacr.org/2020/489
4. Lecture Notes in Computer Science;A Abadi,2017
5. Abadi, A., Terzis, S., Dong, C.: Feather: lightweight multi-party updatable delegated private set intersection. Cryptology ePrint Archive, Report 2020/407 (2020). https://eprint.iacr.org/2020/407