The Long Tail of Work Left Until ActivityPub Has E2EE
Summary
The article analyzes end-to-end encryption for ActivityPub in the Fediverse, focusing on MLS-based messaging, key transparency, and the Public Key Directory. It explains three goals (Fundamental, Security, Authenticity), the required MLS implementations, and how communities can contribute and audit the work. It also discusses adoption challenges and governance for a secure, decentralized identity layer.