Skychat on Skycoin Blog

Skychat: Group Messaging on a Peer-to-Peer Mesh

Thu, 04 Jun 2026 00:00:00 +0000

Skychat is the chat application that ships with skywire — direct messages and group conversations between visors. It is also, quietly, one of the best stress tests the project has. A group chat exercises almost everything underneath it at once: the encrypted transport mesh, the CXO data layer that synchronizes shared state, presence and reconnection, and the unforgiving question every messaging system eventually faces — when you send a message, does it actually arrive?

Skychat D1: Group Chat Over CXO

Tue, 12 May 2026 00:00:00 +0000

Skychat got DM-shaped messaging years ago. Group chat is a different shape — multi-party, lossy-tolerant, with members joining and leaving — and it’s been an open feature gap. Today’s PR stack ships D1 group chat: the first design iteration, owner-centric, riding on CXO feeds, with end-to-end encryption optional via per-group AES keys.

The D1 model

D1 picks the smallest viable shape that lets a group of people exchange messages reliably:

Skychat Pairing: End-to-End Encryption + Consent

Tue, 28 Apr 2026 00:00:00 +0000

Skychat — Skywire’s built-in messaging app — had been a “best-effort” DM system since it shipped. Any peer who knew your public key could open a chat-app stream to you and send a message. Bodies traveled in cleartext on the wire (over Noise-encrypted transports, but with no app-layer secret of their own), and there was no mechanism to refuse a sender ahead of time. Today’s PR stack changes both of those: consent-gated pairing, plus end-to-end encrypted message bodies that the transport layer never sees in plaintext.