Passwordless Authentication
Discover the future of authentication beyond passwords. Covers FIDO2, WebAuthn, passkeys, biometric authentication, and practical strategies for migrating from password-based to passwordless authentication.
Key Terms
FIDO2
TrendingAn open authentication standard by the FIDO Alliance that enables passwordless authentication using public-key cryptography, comprising the WebAuthn web API and CTAP2 client-to-authenticator protocol.
Web Authentication
WebAuthn
A W3C web standard and core component of FIDO2 that provides a browser API for creating and using public-key credentials for passwordless, phishing-resistant authentication on the web.
Passkeys
TrendingA passwordless authentication credential based on FIDO2/WebAuthn that syncs across devices using platform cloud services, providing phishing-resistant authentication without requiring users to manage physical security keys.
Passwordless Authentication
TrendingAn authentication approach that verifies user identity without requiring a traditional password, using alternatives such as biometrics, security keys, magic links, or passkeys.
Biometric Authentication
An authentication method that verifies a user's identity using unique biological characteristics such as fingerprints, facial features, iris patterns, or voice recognition.
Recommended Books
NIST SP 800-63 Digital Identity Guidelines
Paul Grassi
NIST SP 800-63 Digital Identity Guidelines
Paul Grassi, James Fenton, Elaine Newton, Ray Perlner, Andrew Regenscheid
The NIST SP 800-63 Digital Identity Guidelines provide technical requirements for federal agencies implementing digital identity services. Revision 4 covers identity proofing (800-63A), authentication and lifecycle management (800-63B), and federation and assertions (800-63C). It defines Identity Assurance Levels (IAL), Authenticator Assurance Levels (AAL), and Federation Assurance Levels (FAL).
FIDO2 and WebAuthn: Passwordless Authentication
David Turner
FIDO2 and WebAuthn: Passwordless Authentication
David Turner, Christiaan Brand
A comprehensive developer guide to implementing FIDO2 and WebAuthn passwordless authentication. Covers the FIDO2 protocol, WebAuthn API, platform authenticators, roaming authenticators, passkeys, and practical implementation patterns.