The Tor 0.3.5 series includes client authorization for v3 onion services.
To configure client authorization on the service side, the "/authorized_clients/" directory needs to exist. Each file in that directory should be suffixed with ".auth" (i.e. "alice.auth"; the file name is irrelevant) and its content format MUST be:
The supported are: "descriptor". The supported are: "x25519". The is the base32 representation of the raw key bytes only (32 bytes for x25519).
How can I generate the ".auth" file?