Yubikey 5 nfc / Protonmail app / fido2 problem

Pini

Hello every one,
I try to open my protonmail app, on a pixel 8/grapheneos, with a 2FA yubikey, via a nfc authentication. The nfc yubikey is detected by the phone and protonmail, but the system doesn't allow it to open protonmail. While using the same yubikey, viac usb-c connexion, it works well !
Can you help me ?
Thank's a lot.
Jp - France

fid03

Pini I'm guessing that's probably because Play services still doesn't support entering a PIN when using NFC. As far as I recall it will then just silently fail. I'm assuming you have to enter your PIN when using the Yubikey over USB, with Proton.

lvpha

Pini Try Key Driver https://apkpure.com/key-driver/com.kunzisoft.hardware.key it should prompt you to access the YubiKey

fid03

lvpha Try Key Driver https://apkpure.com/key-driver/com.kunzisoft.hardware.key it should prompt you to access the YubiKey

Sorry, but that app doesn't work for what the OP is trying to do (I just tested it, installed from Play Store), which is, as I understand it, to use their Yubikey with NFC.

Pini

Thank you guys for you answers !