[cabfpub] Ballot 199 - Require commonName in Root and Intermediate Certificates

[Peter Bowen]

> On Apr 25, 2017, at 8:03 AM, Gervase Markham via Public <public at cabforum.org> wrote:
> Certificate Field: subject:commonName (OID 2.5.4.3)
> Required/Optional: Required
> Contents: This field MUST be present and the contents MUST be an identifier 
> for the certificate such that the certificate's Name is unique across all 
> certificates issued by the issuing certificate.
What does "such that the certificate's Name is unique across all certificates issued by the issuing certificate” mean?  How is this a requirement on commonName, if this means the full subject Name?

Thanks,
Peter