Documentation

[s-crypt]

There is not much documentation on this project, so I have a few questions.

• Is the data or metadata encrypted peer to peer?
  • If not E2EE, is the data encrypted at all?
• Does the data get sent to a server when a transfer is over a local network?

[szimek]

Hey!

I agree that it could be explained a bit better in both the app itself and this repo.

The only data that does not go through P2P connection is the initial exchange of messages required to establish P2P connection (so called signaling) - this goes through Firebase. All the other data, i.e. file metadata (e.g. its name) and the file data itself is sent through WebRTC P2P encrypted data channel.

You can read about security in WebRTC e.g. https://webrtc-security.github.io/ or https://bloggeek.me/is-webrtc-safe/.