Hello,
related to this... I'd like to point out something that is bugging me...

Section 7.1.5 of the BR stipulates...

First paragraph: "For a Subordinate CA Certificate to be considered Technically 
Constrained..."

Second paragraph: "If the Subordinate CA Certificate includes the 
id-kp-serverAuth extended key usage, then the Subordinate CA Certificate MUST 
include the Name Constraint..."

An strict reading of these two paragraphs would drive to the consequence that 
if the EKU exist, then the name constraint MUST be there too. It's evident that 
this is intended for a CA to be considered as technically constrained, but I 
think it can lead to an incompatibility with the Mozilla Policy, that expects 
all issuing CAs to include the EKU constraint since 1/1/2019

Maybe my comment is irrelevant, but as said, it was unsettling me.

Best,
Pedro
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