Dear Mozilla team,

I have a clarification that I need to discuss with you please.

We have a 2-level CA hierarchy where the Root CA sits at the top level while 
Issuing CAs comes at the second level.
As part of the regular issuing CA re-key, we are going to add technical 
constraints to all issuing CAs in order to have separate Issuer CAs for Server 
Authentication, Code Signing, and Time Stamping uses. That will be reflected to 
the Issuing CAs’ certificates as follows:
Issuing CA

EKU

Devices Certification Authority

serverAuth
clientAuth

Corporate Certification Authority

clientAuth
Microsoft Document Signing
(1.3.6.1.4.1.311.10.3.12)

Code Signing Certification Authority

codeSigning

Timestamping Certification Authority

timeStamping


According to our reading of Mozilla policy section 1.1, and given the above 
constraints; we assume that the Corporate Certification Authority and its 
underlying certificates (EE certificates) don’t fall under Mozilla’s scope. 
Could you please confirm?
Kindly note that the rationale behind our question is that there cases where we 
will not be able to have an EKU in EE certificates issued by the Corporate 
Certification Authority when the purpose/use of certificate is not matching 
with any of the standard EKUs.

Thank you in advance.


Kind Regards,

Mohamed Abdelshahid

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Principal PKI Consultant

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