The Messaging Layer Security (MLS) Protocol
I like the idea conceptually, but what is the likelihood of broader adoption? I notice that Meta, Apple, and Google are conspicuously absent from the contributors. Historically (see e.g. Matter) it seems like standards that aren't written to conform to existing de facto implementations tend to be superseded by later ones that are.I'll admit to not having read the entirety of the RFC, but I'd also be curious about how the proposed approach maps to the current privacy/UX goals that the established players are pursuing, e.g. if WhatsApp wants to preserve cleartext moderation of E2E group chats, is that possible under this scheme, etc.