Matrix

Matrix is a next gen chat network.

Authentication

• MAS: https://element-hq.github.io/matrix-authentication-service/setup/installation.html
• Macaroons based authentication notes : https://research.google/pubs/macaroons-cookies-with-contextual-caveats-for-decentralized-authorization-in-the-cloud/

Matrix-ActivityPub interoperability

• Introduction : https://conf.kde.org/event/5/contributions/134/attachments/91/107/Akademy2023SlideTemplate.pdf

Usage scenario

We would like to use Matrix chat clients to post User authorized updates via ActivityPub messaging to our blog.Ideally, we don't want to post links or use Mastodon/Fediverse at all to avoid URL replay/amplification attacks.

In KDE plasma, we can use native qt6 matrix clients to access Synapse homeserver at matrix.open-neurosecurity.org.

See also

• Matrix-Synapse homeserver : https://github.com/element-hq/synapse
• ActivityPub