🔐 Managing FIDO

📱 Using Authnkey on Android

Download

• GitHub: https://github.com/mimi89999/Authnkey
• Google Play: https://play.google.com/store/apps/details?id=com.token2.fidobridge

Usage

1. Switch MiixKey to NFC+BT mode.
2. Connect via NFC.

💻 Using Ykman to Manage FIDO Credentials

Prerequisites

1. Download and install YubiKey Manager GUI — choose version 5.7.2 or earlier.
2. Ensure MiixKey is connected to your computer.
3. Open a terminal (PowerShell) with administrator privileges.

Steps

1. View Credentials List

Run the following command to view FIDO credentials on the device:

&"C:\Program Files\Yubico\YubiKey Manager\ykman.exe" -r MiixKey fido credentials list

Example output:

Enter your PIN:
Credential ID  RP ID        Username  Display name
c2fd23b1...    webauthn.io  TT4       TT4

2. Delete a Credential

Use the following command to delete a specific credential (replace [Credential ID] with the actual credential ID):

&"C:\Program Files\Yubico\YubiKey Manager\ykman.exe" -r MiixKey fido credentials delete [Credential ID]

Procedure:

1. Enter your PIN.
2. Confirm the deletion (type y).

Example output:

Enter your PIN:
Delete webauthn.io TT4 TT4 (c2fd23b12aa967566b776ff5cb26d94c5eafbd46c1bf2148af315c6b32a04e11010274a6ea9213c99c2f74b22492b320cf40262a94c1a950a0397f29250b60841ef0f8ffffff)? [y/N]:

3. Verify Deletion

Run the list command again to confirm the credential has been deleted:

&"C:\Program Files\Yubico\YubiKey Manager\ykman.exe" -r MiixKey fido credentials list