Before you use the encryption function, EVS must be granted the permission to access KMS. If you have the right to grant the permission, you can grant the permission directly. If you do not have the permission, contact a user with the security administrator permissions to add the security administrator permission for you. Then, you can grant the permission. For more information about EVS, see the Elastic Volume Service User Guide.
There are two types of CMKs that can be used: