June 23, 2021
Second Version of FIDO2 Client to Authenticator Protocol (CTAP) Now a Standard

FIDO logoThe FIDO Alliance has completed the CTAP 2.1 Specification. This follows the publication of the closely-related second version of the W3C Web Authentication (WebAuthn) specification.

Today’s FIDO Alliance announcement describes the enhancements in the second version as follows:

Enhancements to FIDO standards to accelerate passwordless in the enterprise

The FIDO Alliance has announced enhancements to its FIDO2 specifications, which include several new features that will be helpful for passwordless enterprise deployments and other complex security applications. Both FIDO2 specifications were recently updated by their governing bodies – with the World Wide Web Consortium (W3C) approving WebAuthn Level 2 and FIDO doing the same for CTAP 2.1.

Key to these enhancements is enterprise attestation, which provides enterprise IT with improved management of FIDO authenticators used by employees. Enterprise attestation enables better binding of an authenticator to an account, assists with usage tracking and other management functions including credential and pin management, and biometric enrollment required in the enterprise.

Other updates include support for cross-origin iFrames and Apple attestation, as well as improvements to resident credentials. More details on these and other FIDO specification enhancements are available here.

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