Lecture
This lecture delves into the intricacies of SwissCovid and CrowdNotifier, explaining the encryption process, key verification, and the role of private keys in ensuring data security and anonymity. The instructor discusses the challenges of proximity measurement using Bluetooth technology and the importance of key rotation to prevent tracking. The session also covers the implementation of contact tracing in public spaces and the minimal data exchange required for effective notification, highlighting the balance between privacy and public health.