FIDO Certified Authenticator Exam

In the context of FIDO, what is a 'trust anchor'?

The server-side component that stores all public keys A root certificate or public key that a relying party trusts to validate an attestation certificate chain The PIN or biometric used to unlock an authenticator A cryptographic nonce generated during the challenge-response flow

Correct Answer:

A root certificate or public key that a relying party trusts to validate an attestation certificate chain

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