cmd-chat

Hi HN, This is cmd-chat, a Python terminal chat app designed around a few constraints: - No central servers - No message or key persistence - No plaintext credentials ever sent over the network Authentication uses *SRP*, and messages are encrypted after key exchange. All data lives in memory only and disappears when the process exits. This was partly a learning project and partly an experiment in building a “minimum-trust” chat system using standard cryptographic primitives. Curious to hear thoughts on the threat model, crypto choices, and overall design.

Hi HN, I built cmd-chat, a peer-to-peer terminal chat application written in Python. It focuses on privacy and simplicity: - End-to-end encrypted messaging (SRP authentication + symmetric encryption) - No servers, no databases, no logs - Nothing written to disk — everything runs in RAM - Pure CLI/terminal-based UX The goal was to explore how far you can push secure communication with minimal infrastructure and zero persistence. I’d really appreciate feedback on the security model, protocol design, and any ideas for improvement. Thanks!