2 FAQ

1. Does deregister passkey remove passkey from device?

   No. When you deregister the passkey it only gets removed from server and not from device or your device’s keychain or password manager. Since passkey works on public-private key infrastructure, and deregistering the passkey removes public key from server , the device’s private key cannot be used to authenticate and access login to the application or for any other use.

2. Does the user need to re-register for passkey after certain time duration?

   No. Passkeys have no expiry. Hence the passkey created once does not require any re-registration.

3. Is there support for cross-platform application for passkey?

   No. As of May’23, cross platform support for passkeys is not enabled. So a passkey created for android device cannot be used to authenticate an iPhone device and same is for similar other cross channel cases.

4. Can I still use “alternate login” for application login?

   No. If the bank provides option for passkey login then alternate login cannot be used for application login on mobile devices. It’s an either “Passkey” or “Alternate Login” option.

5. Can I use passkey for siri/iMessage type payments?

   No. Passkeys can only be used for application login.

6. What versions of Android and iOS are supported for passkeys?

   Android 9 and higher. iOS/iPad OS 16 and higher.

   For more on info on passkey support for chrome and android refer to this link : https://developers.google.com/identity/passkeys/supported-environments#chrome-passkey-support-summary