Lecture
This lecture covers the implementation of End-to-End Encryption (E2E) in Zoom meetings, focusing on client key management, identity verification mechanisms, and the development of a Transparency Tree for ensuring immutable keys. It also discusses the challenges of device identification and the use of SigChains. The roadmap includes phases for enhancing security, such as real-time security measures and the integration of Multi-Factor Authentication (MFA). The lecture emphasizes the importance of confidentiality, integrity, and abuse prevention in the context of large-scale video conferencing. Various cryptographic algorithms are employed to secure meeting data and ensure secure key distribution.