I described the relationship between OpenID and FIDO during the October 21, 2021 FIDO Alliance plenary meeting, including how OpenID Connect and FIDO are complementary. In particular, I explained that using WebAuthn/FIDO authenticators to sign into OpenID Providers brings phishing resistance to millions of OpenID Relying Parties without them having to do anything!
The presentation was:
- OpenID and FIDO (PowerPoint) (PDF)