Yes. That's one of the primary use cases of a YubiKey (or other FIDO 2 hardware keys). Please note that there are 2 types of passkeys: - resident keys: Actual

Yes. That's one of the primary use cases of a YubiKey (or other FIDO 2 hardware keys). Please note that there are 2 types of passkeys: - resident keys: Actually stored on the hardware key - non-resident keys: Keys that are recalculated on the fly based on a secret seed value, the domain that the service is for and the username. The advantage is that these don't take up any storage space Resident keys have the advantage that they remember the username. But there is only a limited number of keys (about 100 on new YubiKeys but there are still a lot of older hardware tokens being used) that you can store on a hardware token. Non-resident keys have the advantage that you can "store" an infinite number of them on your hardware token. See https://fy.blackhats.net.au/blog/2024-04-26-passkeys-a-shattered-dream/ https://fy.blackhats.net.au/blog/2024-04-26-passkeys-a-shatt...