Again, that's not how it works.
There's no set of keys and certificates they could give to the NSA. Every iPhone 18 Pro and Pro Max has a unique set of cryptographic keys, most of which can't be accessed by Apple.
The first thing that happens is when photo sensor is initialized at the factory, it creates its own ECDSA P-256 signing key pair; the private key is never disclosed. The public key is signed by the factory's certificate authority.
This ain't X.509 where VeriSign's key pair is sitting in a HSM at their HQ and in theory could be forced to sign a fraudulent certificate or revoke someone's valid website certificate.