rfc9420

A Messaging Layer Security (RFC 9420, MLS) implementation in TypeScript

Wrapper for OpenMLS, implementing the Messaging Layer Security (MLS) protocol (RFC 9420) for scalable end-to-end encrypted group messaging. Features TreeKEM key agreement, encrypted storage (SQLCipher/IndexedDB), and Web Crypto support. Optimized for Flutter and cross-platform applications (Android, iOS, Linux, macOS, Windows, Web). MIT Licensed.

Layered E2EE group-messaging protocol stack built on MLS (RFC 9420). Includes GBP base layer, GTP/GAP/GSP sub-protocols, SFrame media encryption, and cross-platform bindings for Rust, .NET, Node.js and Python.

Peer-to-peer, end-to-end encrypted alternative to Discord. Guilds, DMs, voice and video — no company, no account database, no server in the middle.

End-to-end-encrypted (MLS) chat over Tor onion services. Pure Rust + Tauri 2. macOS, Android, Linux, Windows. No phone, no email, no central server.

This crate is a repository of MLS / RFC9420-related data structures.

End-to-end encrypted messenger built on MLS (RFC 9420) rather than the Signal protocol. Rust crypto core, Axum server, React client, and a web build you can check against an attested manifest. Unaudited learning project — for anything that matters, use Signal.

Secure Group Messaging Protocol Stack 2026: MLS-Based E2EE Architecture