WebAuthn
Web Authentication
identitymedium
WebAuthn is a W3C standard browser API that lets websites authenticate users with public key credentials instead of passwords. The browser talks to an authenticator, such as a platform biometric sensor or a USB security key, which signs a challenge tied to the site's origin. It is the web-facing half of FIDO2 and the technology behind passkeys.
Sources
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Tools worth considering
- YubiKey 5C NFC → Hardware security key supporting FIDO2, U2F, TOTP, and passkeys. Phishing-resistant in a way app codes are not, but buy two; losing your only key locks you out.
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