To set up your Linux system for U2F:
- If you have a YubiKey NEO or YubiKey NEO-n ensure you have unlocked the U2F mode by following the instructions at http://yubi.co/unlockU2F. If you have a Security Key by Yubico (blue color), U2F is enabled by default (only U2F mode is supported on this product).
- Go to https://github.com/Yubico/libu2f-host/blob/master/70-u2f.rules and
download or create a copy of the file named 70-u2f.rules into the Linux directory:
If this file is already there, ensure that the content looks like the one provided on github.com/Yubico (link above).
Note: If your version of UDEV is lower than 188,
use the rules at https://github.com/Yubico/libu2f-host/blob/master/70-old-u2f.rules instead.
- Save your file, and then reboot your system.
- Ensure that you are running Google Chrome version 38 or later. Starting with Chrome version 39, you will be able to use the YubiKey NEO or YubiKey NEO-n in U2F+HID mode.