What 2FA methods are available?

Currently, we have very limited support for 2FA with SSH.

A small fraction of the login nodes currently support ed25519-sk and edcsa-sk keys, which use a compatible FIDO2 security key for 2FA (not all FIDO2 security keys support it). In the future, all HPC login nodes will support them. See the FAQ page on keys for more information.

Additional 2FA methods for SSH authentication may come in the future.