Some KMS vendors require that you upload your root CA certificate to the KMS. All certificates that are signed by your root CA are then trusted by this KMS.
The root CA certificate that vSphere Virtual Machine Encryption uses is a self-signed certificate that is stored in a separate store in the VMware Endpoint Certificate Store (VECS) on the vCenter Server system.
Generate a root CA certificate only if you want to replace existing certificates. If you do, other certificates that are signed by that root CA become invalid. You can generate a new root CA certificate as part of this workflow.
- Log in to the vSphere Web Client, and select a vCenter Server system.
- Click Configure and select Key Management Servers.
- Select the KMS instance with which you want to establish a trusted connection.
- Select Root CA Certificate and click OK.
The Download Root CA Certificate dialog box is populated with the root certificate that vCenter Server uses for encryption. This certificate is stored in VECS.
- Copy the certificate to the clipboard or download the certificate as a file.
- Follow the instructions from your KMS vendor to upload the certificate to their system.
Some KMS vendors require that the KMS vendor restarts the KMS to pick up the root certificate that you upload.
What to do next
Finalize the certificate exchange. See Complete the Trust Setup.