Privastead is a home security camera solution focused on privacy, utilizing end-to-end encryption through the OpenMLS implementation of the Messaging Layer Security (MLS) protocol. The software-only solution works with existing IP cameras and operates with minimal trust assumptions. The Rust implementation includes a camera hub, mobile app, and untrusted server. Privastead guarantees that only the hub and mobile app can access unencrypted videos, with the server unable to decrypt them. However, timing of events and livestreams is not hidden from potential adversaries. The project founder, Ardalan Amiri Sani, a Computer Science professor at UC Irvine, oversees the project. Controversially, the app is limited to pairing with one camera, potentially impacting performance with high resolutions.
https://github.com/privastead/privastead