I wish to privately submit my public key (without it being sniffed on the internet). I found that I have 3 ways to connect to the keyserver securely:
hkps://<keyserver-url>(HKP over TLS)
Which one of the 3 is most secure? I'm surprised to find that the Tor keyservers only use hkp and not hkps.
https keyservers are working with ipv4 to search and submit keys but it's hard to find hkps server working with ipv4.