On: Biometric YubiKey

[Someone1234]

What services even support multiple keys?

That's been my biggest struggle, I want a primary and backup key but almost every service I use only allows one at a time. I cannot duplicate the same key because it increments internally to avoid replay.

[sakisv → Someone1234]

Not as many as I would like, but: google, github, hetzner, ovh, gandi, gitlab, bitwarden are some that support multiple keys.

[acheron9383 → sakisv]

I suppose for sites that only allow one, you can store their backup codes in bitwarden behind you multi-key service. Still annoying.

[tialaramex → Someone1234]

Facebook, GitHub and Google are common sites which allow multiple keys.

[sowbug → Someone1234]

Is there a service that limits to a single key? I've never encountered one.

[chowell → sowbug]

AWS only allows one U2F token to be registered at a time.

[notfoss → sowbug]

Zoho.

[taeric → sowbug]

twitter. :(

[gleenn → Someone1234]

Google does, and IIRC Github does too.