[tor-relays] Storing ed25519_master_id_secret_key[_encrypted] on a smartcard?

[telekobold]

After being encouraged in today's relay operators meetup to follow up on
this: Anyone who has experiences with that?

On 21.02.23 13:18, telekobold wrote:
> Dear fellow relay operators,
> 
> currently, I'm operating a Tor relay (Middle/Guard) and a Tor Bridge.
> 
> Offline keys [1],[2] are a good way to secure a Tor relay, but I'm
> wondering if there is a standard way or something like a hacking guide
> how to store your ed25519_master_id_secret_key[_encrypted] on a
> smartcard or hardware token like a Nitrokey or Yubikey? This would even
> be more secure than storing it on a "normal" USB device.
> 
> Unfortunately I have not found much about this on the internet.
> 
> Kind regards
> telekobold
> 
> [1] https://support.torproject.org/relay-operators/offline-ed25519/
> [2]
> https://gitlab.torproject.org/legacy/trac/-/wikis/doc/TorRelaySecurity/OfflineKeys
> _______________________________________________
> tor-relays mailing list
> tor-relays at lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays