You can replace the default object storage API service endpoint server certificates with a single custom server certificate that is specific to your organization.
API service endpoints on Storage Nodes are secured and identified by X.509 server certificates. By default, every Storage Node is issued a certificate signed by the grid CA. These CA signed certificates can be replaced by a single common custom server certificate and corresponding private key.
You need to complete configuration on the server, and depending on the root Certificate Authority (CA) you are using, users might also need to install the root CA certificate in the in the API client they will use to access the system.