How to Build Your Own CA (Certificate Authority) for Signing Certificates Using Raspberry Pi + YubiKey

The article discusses how to build a small, local Certificate Authority (CA) using Raspberry Pi and YubiKey. In today’s world, security is crucial, and using your own CA can significantly enhance online privacy. The author outlines the steps to configure the Raspberry Pi as a CA unit and how to integrate it with YubiKey for securely storing private keys. There are also tips on using the Step CA tool, which simplifies the process of creating SSL certificates. Finally, the author presents the advantages of running a local CA, including better control over your own certificates and their lifecycle. This is an ideal solution for those looking to increase the security of their online projects while learning more about cryptography and certification.