In this tutorial I will describe how you can use Git to sign commits with an OpenPGP key. With this you can simply confirm that you really are the author. The commit is then displayed as signed on e.g. GitHub. I’m going to assume that you’ve already created an OpenPGP key. Otherwise you can search the net for instructions, or get what you need from my tutorial on Nitrokey Pro 2....
In this tutorial I will explain how to create an OpenPGP key with GnuPG (version 2.3.8) on the Nitrokey Pro 2. The requirement for this tutorial is that you already have the Nitrokey app installed. You can find instructions on how to do this in Gentoo here. Preperation The Nitrokey Pro 2 works in connection with GnuPG like a smart card, it is practically one. To check whether access to this is given, we enter the following as a normal user (owner Nitrokey) in the console:...