You can use the vCloud Availability Installer Appliance to create trust connections and handle certificate updates.
The vCloud Availability Installer Appliance uses the following methods to trust certificates.
Create a trust by using the SSL certificate for a specific IP address and port.
Create a trust with a host VM by using SSH certificate.
The vCloud Availability Installer Appliance can determine that a certificate is trusted from another endpoint, that is trusted using SSL or SSH certificate.
The vCloud Availability solution interacts with the following certificate endpoints.
vCenter Server Lookup Service
vSphere Replication Manager
vSphere Replication Cloud Service
vSphere Replication Server
vCloud Availability Portal