My employer uses Duo for two-factor authentication and offers three options: cellphone, landline, or security key. I go to the desired app (e.g. Outlook) in Firefox. I select the landline I want, Duo calls it, and I hit any key to authenticate. So far so good. But as of January 1st, my employer will drop support for landlines. I do not have or want a cellphone (long story).
That leaves one option: a security key that plugs into USB. I had a Yubico Security Key NFC made to work with Duo, and it succeeds when I test it from a Windows laptop. But I use a desktop running Buster (v10, oldstable). I understand there are NFC (near-field communication) readers that can support a security key. Has anyone managed to get an NFC reader working with a security key on a Debian desktop? If so, I'd like to know how to set that up. Thank you.
