Passkey support

[cbenhagen]

What feature would you like to see?

Please provide native Passkey (FIDO2/WebAuthn via CredentialManager) support directly within the Firebase Authentication Android SDK:

• Enroll a passkey
• Sign in with passkey
• Unenroll a passkey
• Query enrolled passkeys of a user

How would you use it?

Passwordless authentication and MFA.

User requests

Supporting passkeys is one of the top 10 requested features on the Firebase uservoice:
https://firebase.uservoice.com/forums/948424-general/suggestions/46647016-support-authentication-with-passkeys

By far the most votes in the public Cloud Identity Platform issue tracker:
https://issuetracker.google.com/issues/289237739

Requests for other Firebase SDKs

• iOS / macOS
• web
• Flutter

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.