A method begins by a processing module outputting a registration request message that includes requesting access to a local dispersed storage network (DSN) and requesting access to a global DSN. The method continues with the processing module receiving a registration response message that includes a global universal unique identifier (UUID) and a local UUID. The method continues with the processing module generating a global public-private key pair and a local public-private key pair and generating a global certificate signing request (CSR) based on the global UUID and a private key of the global public-private key pair. The method continues with the processing module generating a local CSR based on the local UUID and a private key of the local public-private key pair, sending the global and local CSRs to a certificate authority (CA), and receiving a signed global certificate and a signed local certificate.