Implementing FIDO2 Authentication: A Developer's Step-By-Step Guide
Security Boulevard, Friday, December 6th, 2024
FIDO2 is the latest set of specifications from the FIDO Alliance, aiming to enable passwordless authentication.
It comprises two main components:
- WebAuthn API: A web standard published by the World Wide Web Consortium (W3C) that allows web applications to use public-key cryptography instead of passwords.
- Client to Authenticator Protocol (CTAP): A protocol that enables an external authenticator (like a hardware security key) to communicate with the client (like a web browser).
Key Benefits of FIDO2:
- Enhanced Security: Uses asymmetric cryptography, reducing the risk of credential theft.
- Improved User Experience: Eliminates the need for passwords, making authentication seamless.
- Phishing Resistance: Credentials are bound to specific origins, mitigating phishing attacks.
Why FIDO2?