Per firm security design, currently it's only supported retrieving credential from HashiCorp via signed SSL certificate and we can't retrieve credentials from HashiCorp via Certificate from Ansible Automation Platform.

Would you please add a new Credential Type to Ansible Automation Platform version2.4+ to support HashiCorp Vault Secret Lookup via Certificate?

FYI...Please check attachment for desired UI layout for Credential Type 'HashiCorp Vault Secret Lookup via Certificate'.