Is it possible to rekey a connection between a Tor client and a relay? By rekey I mean perform the usual x25519 key exchange to change the session key on the fly, without tearing the circuit down.
1 Answer
Not possible yet. Proposal 262 is still open and there is no other rekey mechanism.
- Thank you. This is exactly what I was looking for. This proposal seems to be specifically for AEZ, and I recall the decision was to consider ChaCha20-Poly1305 instead, so the prop may not get much traction.forest– forest2018-09-15 06:55:13 +00:00Commented Sep 15, 2018 at 6:55