Secure exchange

P2P Chat

Direct Encrypted ExchangeWhen trust is personal, remove the unnecessary middleman.

A simple encrypted P2P connection workflow using host/listener and client roles, a shared generated key, and a dedicated p2pchat_files folder for transfers.

Plain English

P2P Chat creates a direct encrypted connection between a host and client so they can exchange messages and files without third-party servers.

What it teaches

  1. direct secure exchange
  2. shared-secret handling
  3. host/client setup
  4. safe file transfer boundaries

Use when

  1. Two trusted parties need direct encrypted chat
  2. Files should move without cloud storage
  3. Operators need a simple no-server transfer path

What it observes

  1. Host IP and port
  2. Encryption type
  3. Shared key match
  4. Allowed IP and connected state

Requirements

  1. Host and client must choose the same encryption type
  2. Shared generated key must be delivered out-of-band
  3. Files must be placed inside p2pchat_files
  4. Network/firewall must allow the chosen host port

Manual-backed details

  1. Recommended encryption options are AES-256-GCM or ChaCha20-Poly1305.
  2. The listener only accepts a connection that presents the exact key and connects from an allowed IP.
  3. Files are sent from the chat window with /send filename.ext and land in the recipient's p2pchat_files folder.

Next step

Have one side host, generate a key, share IP/port/key out-of-band, connect from the client, then transfer only files staged in p2pchat_files.

Product links

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