Private chat for the post-quantum era
A peer-to-peer messenger with a Python CLI and a new Android testing build, using a hybrid X25519 plus ML-KEM session handshake.
The archive contains the installable Python package, source code, tests, license, and README for PQCove Chat.
Verify the archive before installing. The checksum below is SHA-256 for
pqcove-chat-0.2.1.zip.
3b5e2e3e75dc0b88c2853913ff3707d9decd3036928d93259829dfba3a024037
The Android application is available for interface and device testing. It is not a production release and must not be used for sensitive or real-world communications.
The native Kotlin and Jetpack Compose build includes an English chat UI, local Alice and Bob demonstration, Wi-Fi endpoint controls, Bluetooth Classic screens, protocol primitives, Android Keystore envelopes, and the PQCove launcher icon.
The complete dual-signed post-quantum handshake, encrypted persistence, Python interoperability suite, release signing, and independent security review are still release blockers.
Installation, local-network chat, and license details now live on focused pages.
Set up the ZIP package on Windows, Linux, or macOS and verify the SHA-256 checksum before installing.
Use the cove-style terminal client with fast command autocomplete, /lazy quick connect, help chat, and theme controls.
Run one machine as the listening node and connect from another IP address on the same LAN.
Read the project license page, open the canonical source, or download the QGPL text used in the package.
PQCove Chat is a research prototype, not an independently audited cryptographic product.
X25519 and ML-KEM-768 combine into directional AES-256-GCM session keys.
Each session derives a matching 9-digit pairing PIN: XXX-XXX-XXX.
Private keys are encrypted at rest with passphrase-based scrypt and AES-GCM.
The zip includes source and tests so the protocol path can be inspected locally.