She's clarified in the discussion thread that it is all SubCAs chained to
the a CAs root certificate that must be disclosed, regardless of who
controls the private key.

Jeremy

-----Original Message-----
From: dev-security-policy
[mailto:dev-security-policy-bounces+jeremy.rowley=digicert.com@lists.mozilla
.org] On Behalf Of Kurt Roeckx
Sent: Wednesday, May 14, 2014 2:37 PM
To: Kathleen Wilson
Cc: mozilla-dev-security-pol...@lists.mozilla.org
Subject: Re: Question about disclosing subCA certs

On Wed, May 14, 2014 at 01:08:12PM -0700, Kathleen Wilson wrote:
> All,
> 
> In response to the CA Communication, I have received the following
question.
> 
> Question: Please clarify Action #5: Do you expect public disclosure of 
> all subordinate CA certificates, or just those issued to third parties?
> 
> Answer:
> http://www.mozilla.org/en-US/about/governance/policies/security-group/
> certs/policy/inclusion/ "8. ...  The term "subordinate CA" below 
> refers to any organization or legal entity that is in possession or 
> control of a certificate that is capable of being used to issue new 
> certificates. ...
> 9. We encourage CAs to technically constrain all subordinate CA 
> certificates. For a certificate to be considered technically 
> constrained, the certificate MUST include an Extended Key Usage (EKU) 
> extension specifying all extended key usages that the subordinate CA 
> is authorized to issue certificates for. ...
> 10. We recognize that technically constraining subordinate CA 
> certificates as described above may not be practical in some cases. 
> All certificates that are capable of being used to issue new 
> certificates, that are not technically constrained, and that directly 
> or transitively chain to a certificate included in Mozilla's CA 
> Certificate Program MUST be audited in accordance with Mozilla's CA 
> Certificate Policy and MUST be publicly disclosed by the CA that has 
> their certificate included in Mozilla's CA Certificate Program. ..."
> 
> So, my interpretation of the policy is that it applies to all, both 
> internally-operated and externally-operated, sub CA certs.

I think what you're saying is all those CA certs for which they control the
private key.


Kurt

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