How one can be sure there is no mitm when e2e enabled?

As I read in lib-jitsi-meet/ at master · jitsi/lib-jitsi-meet · GitHub, lib-jitsi-meet uses the double ratchet algorithm to guarantee secure connection. However, how can one be sure there is no mitm during the handshake phase of e2e? In many e2e applications there exists something that identifies the connection (like security code, qr-code, emojis and so on)

We haven’t implemented user verification yet, it’s still work in progress. The plan is to use a SAS (Short Authentication String) which will show either numbers or emoji for users to compare.

@saghul, Thanks for such a fast reply!
Any ETA on that topic?

No ETA sorry.