ed25519-sk and ecdsa-sk are newly supported public key types in OpenSSH 8.2 for MFA devices. see How to secure your SSH server with public key Ed25519 Elliptic Curve Cryptography. but I can not use them in github.com yet. May I ask when I can use these types of SSH pubic key?
Thanks for this feedback! We’re always working to improve GitHub, and we consider every suggestion we receive. I’ve logged your feature request in our internal feature request list. Though I can’t guarantee anything or share a timeline for this, I can tell you that it’s been shared with the appropriate teams for consideration.
Seconded. I would prefer to use this key type as well in order to take advantage of the 2fa options it includes.