title: Webauthn with Face ID and Touch ID
body: <p>Recently there is the possibility to verify a login with FaceID or TouchID. This is explained here <a href="https://developer.apple.com/videos/play/wwdc2020/10670/" rel="nofollow noreferrer">https://developer.apple.com/videos/play/wwdc2020/10670/</a>.</p>
  <p>Currently I can't find complete sample codes, but <a href="https://webkit.org/blog/11312/meet-face-id-and-touch-id-for-the-web/" rel="nofollow noreferrer">https://webkit.org/blog/11312/meet-face-id-and-touch-id-for-the-web/</a> is a good place to start.</p>
  <p>Unfortunately, I don't quite understand yet from what the variable &quot;challenge&quot; results. Do I have to generate a new random 32 character long value for each challenge?</p>
  <p>I also don't understand how the value of the variable credentialIdBuffer1 is calculated.</p>
  <p>I think I am not the only one who has these questions and others might find their answers here.</p>
  <p>I would be very grateful for your help.
  Best regards</p>