FIDO2

FIDO2 standard — WebAuthn + CTAP2 passwordless.

Definition

FIDO2 combines asymmetric public keys (P-256, RSA, Ed25519) on authenticators (Yubikey, Titan Key, smartphone) with User Verification (biometric, PIN). Resident keys (Discoverable Credentials) for usernameless login. Adopted by Microsoft Windows Hello, Apple Touch ID/Face ID, Google Account.

Origin

FIDO Alliance founded 2013 ; FIDO2 v1.0 (2019).

Example in context

A user authenticates to GitHub via FIDO2 Yubikey without a password.

Related terms

• Passkeys — FIDO2 UX evolution.