Built a self-hosted messenger.

[wardcore@infosec.exchange]

Built a self-hosted messenger.

Encryption: X25519 key exchange, XChaCha20-Poly1305 for messages. New devices require approval from a trusted device before key exchange. Server never touches plaintext.

LAN mode: UDP broadcast on :45678, clients discover each other and exchange public keys automatically.

Stack: Flutter (Android, Windows, macOS, Linux).

Still in beta.

GitHub - wardcore-dev/onyx: Private and anonymous self-hosted messenger.

Private and anonymous self-hosted messenger. Contribute to wardcore-dev/onyx development by creating an account on GitHub.

GitHub (github.com)

#FOSS #Selfhosted #Privacy #Flutter #OpenSource