[keycloak-user] Integrating with enterprise PKI e.g. Entrust..

Hi there, hope you can help. I’ve searched the documentation, and nothing seems to jump out that clarifies this so… I have a set of web apps and services, all secured with Keycloak using OAuth and JWT, with Single-Sign-On. I have a potential customer who is looking for us to integrate our app suite with their enterprise PKI solution for IDP and SSO. Is there a way that Keycloak can enable this for us, so that we can keep our app architecture isolated from the customers specific security architecture, or will we have to produce a version of our apps and services that have a dedicated integration to the enterprise PKI solution’s services? Sorry if this is a bit of noob question! sincere thanks, Jon