To work on iOS, it requires compatible apps, and for the launch, three apps work with the YubiKey 5Ci.

We will change only the second YubiKey slot so you will still be able to use your YubiKey for two-factor auth like normal.But the key is only part of the equation. Configure your YubiKey to use challenge-response modeĪ YubiKey has at least 2 “slots” for keys, depending on the model. Once you’ve got the above libraries installed, setup is simple. As I mentioned earlier, the main objective of setting this up was booting without a keyboard, so I installed the tool from source as detailed in its README. I initially installed this from Ubuntu’s repository as well, but the version they’ve got is fairly out of date and required both a YubiKey and passphrase instead of just the YubiKey. yubikey-luks is what lets you use the YubiKey as an authentication method for a LUKS setup.I installed it from the Ubuntu repository and had no problems. yubikey-personalization allows you to change the settings on your YubiKey.Next, there were two packages that I needed to configure everything: I set a passphrase like normal-the process I describe in this post allows access with either this passphrase or the YubiKey. While I waited for my YubiKey to arrive, I installed Ubuntu 20.04 with full-disk encryption (using the default option of LUKS, or Linux Unified Key Setup) on the computer. Preparationįirst off, you need a YubiKey, if you don’t have one already. In this post I’ll show you how you can do the same. This allowed me to avoid the need to type a password without giving up security. I didn’t really want to haul a keyboard and monitor around with me, so I came up with an alternative solution: using a YubiKey as my method of authentication. Because this computer was intended for use with sensitive information/source code, I needed to encrypt the disk, which meant that I’d need to enter a passphrase before I could boot it up. However, there was an immediate issue with this plan. Recently I built a small desktop computer to run applications that were a bit much for my laptop to handle, intending to bring it with me when I work outside my apartment.

Alternative yubikey