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The Web Authentication Working Group will develop recommendation-track specifications defining an API, as well as signature and attestation formats which provide an asymmetric cryptography-based foundation for authentication of users to Web Applications.


Standard

https://www.w3.org/Webauthn/
https://github.com/w3c/webauthn
https://www.w3.org/TR/webauthn/


Overview

https://webauthn.guide/
https://slides.com/fidoalliance/webauthn-overview


Browser Support

https://webauthn.me/browser-support


Awesome Webauthn

https://github.com/herrjemand/awesome-webauthn


Demo

https://webauthndemo.appspot.com/
https://webauthn.org/
https://webauthn.me/ & https://webauthn.me/debugger
https://webauthntest.azurewebsites.net/ & GitHub
https://developer.chrome.com/docs/devtools/webauthn/
https://github.com/herrjemand/FIDO2WebAuthnSeries


Usage more than Account Security

https://blog.cloudflare.com/cap-expands-support/ - More devices, fewer CAPTCHAs, happier users


Opensource

https://github.com/google/OpenSK - OpenSK is an open-source security keys written in Rust
https://github.com/solokeys/solo - Solo: open security key supporting FIDO2 & U2F over USB + NFC
https://github.com/makerdiary/nrf52-u2f - nRF52 FIDO U2F Security Key
https://github.com/conorpp/u2f-zero - U2F USB token optimized for physical security, affordability, and style