What tools can I use to generate X.509 certificates? [closed]

Question

When I Google this, I find many places that recommend using the PluralSight tool to generate a certificate, but this tool is no longer available.

Does anyone know of another tool that will easily create and install a certificate?

Edit:

Tool available in a new URL: Plural-sight self cert tool.

Answer 1

You can use openssl to create self signed certificates. Several tutorial are available, following being one of them.

http://www.akadia.com/services/ssh_test_certificate.html

Answer 2

If you are looking for an admin tool you already got some good answers; however if you need to generate certificates from code here are a couple alternatives you can try out (full disclosure: I am a developer for these products), Versile Python (Git repos: python 2, python 3) and Versile Java (Git repo). They do not fully implement X.509, but enough to create basic certificates including some of the main certificate extensions.