Raspberry Pi FIDO2 Key

This project converts an RPi 5 or RPi Zero/ Zero 2 W to a FIDO2 Security Key

⚠️ DO NOT USE THIS IN PRODUCTION, THE CRYPTOGRAPHIC KEYS ARE STORED IN CLEARTEXT

For visual outputs, connect an LED to GPIO 16.

Install Raspberry Pi OS Lite on the Raspberry Pi. (Lite is preferred for faster boot time).

You should be able to access the RPi Terminal with a keyboard + screen or via SSH.

Installation steps:

1. Install Git

sudo apt-get update
sudo apt-get install git

2. Get this repository URL

   Click on the Green <> Code button on this page and copy the URL

3. Clone this repository

git clone <Repository URL>

git clone https://github.com/AdityaMitra5102/RPi-FIDO2-Security-Key.git

4. Go into the folder

   Use cd to go into the folder you just cloned

   cd RPi-FIDO2-Security-Key
   

5. Make the installer executable

sudo chmod +x installer.sh

6. Run the installer as root

sudo ./installer.sh

7. Wait till the system reboots.

The RPi will now behave like a security key. Connect the RPi to the PC via the USB C port.

Power consideration with RPi 5

The device ideally draws around 4w (5v, 800 mA). Normal laptops or phones (without Thunderbolt) may not be able to provide this amount. Hence, it is recommended to power the device via GPIO pins or POE if you notice the device being unable to boot up or frequently shutting down.

Video Demo

https://youtu.be/K7gz3Q2Wtug