







Decentralized & Secure Messaging Get Delta Chat 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure and interoperable chatmail relays 🥳 Interactive...
Delta Chat: Delta Chat, decentralized secure messenger
Delta Chat is a decentralized and secure messenger app 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure and interoperable chatmail relays 🥳 Interactive ...

Delta Chat: Chatmail - replicable, fast and secure chatting infrastructure for all
Today, we are unveiling chatmail services, making onboarding with Delta Chat a breeze, with peace of mind: Convenience: Get a chatmail address in a few seconds Privacy: No questions asked, no name,...

Delta Chat is a decentralized and secure messenger app | Hacker News
This is useful if you want to keep the content of your messages secure, but if you need to keep your identity, social graph and the fact that you conversed with certain people obfuscated, I don't think Delta Chat via email is a good solution.
Delta Chat: Bringing E2E privacy to the Web: 4th security audit 😅
Delta Chat’s “web apps shared in a chat” come with a unique privacy promise but in January it was shown to be compromised. We got into a surprising struggle with Web browser sandboxing issues that ...

Building your own Delta Chat bot is easy. Read on for some basic information and maybe have a look at our example bots.
White Noise - Secure Private Messenger
A truly secure and private messenger that's lightning fast, massively scalable, and identity-free.

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.

Signal Messenger: Speak Freely
Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.

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.
Quiet - Private messaging. No servers.
Quiet is available for all major platforms. (And eventually the web, too!)

Making MLS more decentralized
It’s no secret that we at Phoenix R&D are big fans of the Messaging Layer Security (MLS) protocol, having helped it to come into existence. It’s a versatile group key agreement and messaging protocol that’s used to power both asynchronous and real-time applications. MLS is relatively

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.