Configure FIDO2 security key restrictions
This week is all about FIDO2 security keys. More specifically about configuring FIDO2 security key restrictions to make sure that users can only use specific FIDO2 security keys, or to prevent users from using specific FIDO2 security keys. That makes this blog post a follow up on this post about enabling password-less sign-in with security keys. In this post I’ll provide a short introduction about the FIDO2 security key AAGUID (and how to find it), followed by the steps to configure the FIDO2 security key restrictions. I’ll end this post by looking at the end-user experience. FIDO2 security key AAGUID According to the FIDO2 specification each authenticator should provide an Authenticator Attestation GUID (AAGUID) during attestation. An AAGUID is a 128-bit identifier that indicates the …