Overview#FIDO Alliance (https://fidoalliance.org/) is an open industry association with a focused mission: authentication standards to help reduce the world’s over-reliance on passwords.
FIDO Alliance manages functional certification programs for its core specifications (UAF, U2F and FIDO2) to validate product conformance and interoperability, and in addition has introduced programs to delineate security capabilities of FIDO Certified Authenticators as well as to test and validate the efficacy of biometric components.
FIDO2 is the overarching term for FIDO Alliance’s newest set of specifications. FIDO2 enables users to leverage common devices to easily authenticate to online services in both mobile and desktop environments. The FIDO2 specifications are the World Wide Web Consortium’s (W3C) Web Authentication API (WebAuthN) specification and FIDO Alliance’s corresponding Client To Authenticator Protocol (CTAP and CTAP2).