Broadly, an end-to-end encrypted messaging protocol is one that ensures that only the participants in a conversation, and no intermediate servers, routers, or relay systems, can read and write messages. An end-to-end encrypted group messaging protocol is one that ensures this for all participants in a conversation of three or more people. End-to-end encrypted group […]
Is End-to-End Encryption Optional For Large Groups? - Dhole Moments
One of the recent topics in Messaging App Discourse is whether it makes sense to prioritize End-to-End Encryption (E2EE) when searching for an alternative to Discord. Who’s Saying “No&#…
ATSMS — end-to-end encrypted group messaging
Encrypted group messaging on AT Protocol identities, with no server ordering anything.
Group chats rule the world
Most of the interesting conversations in tech now happen in private group chats: Whatsapp, Telegram, Signal, small invite-only Discord groups. Being part of the right group chat can feel like having a peek at the kitchen of a restaurant but instead of food, messy ideas and gossip fly about in real time, get mixed, remixed, discarded, polished before they show up in a prepared fashion in public.
Key Agreement for Decentralized Secure Group Messaging with Strong Security Guarantees
Secure group messaging protocols, providing end-to-end encryption for group communication, need to handle mobile devices frequently being offline, group members being added or removed, and the possibility of device compromises during long-lived chat sessions. Existing work targets a centralized network model in which all messages are routed through a single server, which is trusted to provide a consistent total order on updates to the group state. In this paper we adapt secure group messaging for decentralized networks that have no central authority. Servers may still optionally be used, but they are trusted less. We define decentralized continuous group key agreement (DCGKA), a new cryptographic primitive encompassing the core of a decentralized secure group messaging protocol; we give a practical construction of a DCGKA protocol and prove its security; and we describe how to construct a full messaging protocol from DCGKA. In the face of device compromise our protocol achieves forward secrecy and post-compromise security. We evaluate the performance of a prototype implementation, and demonstrate that our protocol has practical efficiency.
Dash Chat
Secure messaging that keeps working when the internet doesn't. Dash Chat is an offline-first, end-to-end encrypted messenger for communities that need to stay connected.
The Future of Group Messaging
An analysis of modern messaging, and the evolutionary next steps.
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 …
How to Use Signal Encrypted Messaging
The best end-to-end encrypted messaging app has a host of security features. Here are the ones you should care about.
proto instant messenger
AIM-inspired group chat on the AT Protocol. Real-time chat rooms, presence, away messages — a safe space for community.
proto instant messenger
AIM-inspired group chat on the AT Protocol. Real-time chat rooms, presence, away messages — a safe space for community.
Confessions to a data lake
I’ve been building Confer: end-to-end encryption for AI chats. With Confer, your conversations are encrypted so that nobody else can see them. Confer can’t read them, train on them, or hand them over – because only you have access to them.
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!
Introducing AT-SMS - blog.boscolo.co
Open End-to-End Encrypted Messaging on AT Protocol
Introducing AT-SMS - blog.boscolo.co
Open End-to-End Encrypted Messaging on AT Protocol
The Catbird for Bluesky client app now has experimental end to end encrypted group chats. Built using AT Protocol primitives, all you need is to log into Catbird with your Bluesky account. Chat with friends, share images and posts, find your community again. Now available for testing:
Join the Catbird for Bluesky beta
testflight.apple.com