How to connect CRM through 3rd party service?

Hi,

My company is using 3rd party service (HDE One) for security matter. Every requests sent from our domain email must pass through this service. I have checked from Internet and found this.

https://www.powerobjects.com/2018/05/18/authentication-dynamics-365-using-azure-apps/

The problem is how can I get those parameter like clientId, clientSecret, Resource and Authority?