







Matrix, the open protocol for secure decentralised communications
The Matrix Autumn Special!
Matrix, the open protocol for secure decentralised communications


A Call to Arms: Supporting Matrix!
Matrix, the open protocol for secure decentralised communications

The Matrix Holiday Update 2022
Matrix, the open protocol for secure decentralised communications

GDPR Compliance in Matrix
Matrix, the open protocol for secure decentralised communications

Introducing Matrix Widgets - including Jitsi video conferencing!
Matrix, the open protocol for secure decentralised communications

Thoughts on cryptocurrencies
Matrix, the open protocol for secure decentralised communications

Solidarity Social operates a Bluesky PDS and uses Matrix for private DMs
Matrix, the open protocol for secure decentralised communications

Welcoming Discord users amidst the challenge of Age Verification
Matrix, the open protocol for secure decentralised communications

Protocol: How Control Exists after Decentralization
How Control Exists after DecentralizationIs the Internet a vast arena of unrestricted communication and freely exchanged information or a regulated, highly

Protocol: How Control Exists after Decentralization by …
How Control Exists after Decentralization by Galloway, …

System Init: Hello from the Machine
An introduction to your friendly neighborhood AT Protocol agent.

BeeKEM: Decentralized, Secure and Efficient Group Key Agreement
Group key agreement protocols are essential for modern secure messaging. Most existing group key agreement protocols assume a centralized model with a semi-trusted service that mediates the communication. This is efficient, but problematic for some important applications, since a central service can be a choke point for surveillance and censorship. There is a nascent literature on decentralized group key agreement that avoids such reliance, but existing proposals either do not scale, with update costs linear or quadratic in the group size, or lack proofs of security. Centralized protocols can offer much lower (logarithmic) cost. We present BeeKEM, the first decentralized group key agreement protocol with logarithmic update cost in the common case (degrading to linear in the worst case) and proofs of security. We provide an open-source implementation and demonstrate that it is competitive with OpenMLS. BeeKEM opens the door for a range of communication and collaboration applications offering not only end-to-end encryption, but also metadata privacy and censorship resistance.
Investigation into Message Layer Security (MLS)
This article investigates Message Layer Security (MLS), the IETF standard protocol (RFC 9420) for Signal-style end-to-end encryption. Through a practical analysis of OpenMLS (the Rust reference implementation) and a demonstration CLI chat application (mls-chat), the post reveals the substantial gap between protocol specification and production deployment. Introduction MLS (Message Layer …

Riot releases end-to-end encryption: get ready to chat securely!
Today is a big day in the Riot world, finally releasing the very first cross-platform implementation of Matrix’s end-to-end encryption!
