Creating a local Certificate Authority using OpenSSL

I was recently tasked with creating a local CA for a project, where we needed to verify custom client certificates, have the ability to revoke them at will, and we wanted to add additional custom fields to the certificates. Cool.

The first stop after searching a bit was this excellent howto by Jamie Nguyen. There’s a local mirror here.

Frankly, the only thing Jamie doesn’t go into detail about is how to add custom properties to, in my case, client certificates. Dustin Oprea has a write-up on this here (mirror).

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