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Purpose
The Windows WebAuthn API provides Win32 apps a way to register new phishing-resistant credentials or sign in a user via the Windows Hello platform authenticator and/or external FIDO2 security keys, leveraging the Web Authentication (WebAuthn) and Client to Authenticator Protocol (CTAP) specifications.
Developer audience
The Windows WebAuthn API is designed for use by C/C++ developers of Windows applications. Developers can use this Windows API to register new phishing-resistant credentials or sign in a user using the Windows Hello platform authenticator and/or external FIDO2 security keys, leveraging the Web Authentication (WebAuthn) and Client to Authenticator Protocol (CTAP) specifications.
Runtime requirements
| Requirement | Value |
|---|---|
| Operating system | Windows 10 version 1903 and later Windows 11 |
| Header | webauthn.h |