[VWWHFSfQ]

> by fingerprinting and supported protocols. None of that would be present inherently in a UDP stream unless the application included it.

Much like TLS, both clients offer all the protocols, versions, and media encodings that they support so that they can find a common set that they can use together.

This is standard negotiation when establishing connections in WebRTC and it's obviously fingerprintable information.

[markisus]

You’re talking about WebRTC which may or may not make use of a TURN server. And I assume there are other uses of TURN which are completely unrelated to WebRTC.

Use of a TURN server does not imply hiding of negotiation details. The TURN RFC [1] does not mention anything related to media encodings or WebRTC negotiations at all.

[1] https://datatracker.ietf.org/doc/html/rfc5766