I am very opposed to this. It means surrendering all trust in pictures to Big Tech. If at some time only photos signed by Sony, Samsung, etc. are considered genuine, then photos taken with other equipment, e.g., independently manufactured cameras or image sensors, will be dismissed out of hand. If, however, you were to accept photos signed by the operating system on those devices regardless of who is the vendor, that would invalidate the entire purpose because everyone could just self-sign their pictures. This means that the only way to effectively enforce your approach is to surrender user freedom, and that runs contrary to the Free Software Movement and the many people around the world aligned with it. It would be a very dystopian world.
It would also involve trusting those corporations not to fudge evidence themselves.
I mean, not everything photo related would have to be like this.
But if you wanted you photo to be able to document things, to provide evidence that could send people to prison or be executed…
The other choice is that we no longer accept photographic, audio or video evidence in court at all. If it can no longer be trusted and even a complete novice can convincingly fake things, I don’t see how it can be used.
There’s no need to make these things Big Tech, so if that’s why you are opposed to it, reconsider what you are actually opposed to. This could be implemented in a FOSS way or an open standard.
So you not trust HTTPS because you’d have to trust big tech? Microsoft and Google and others sign the certificates you use to trust that your are sending your password to your bank and not a phisher. Like how any browser can see and validate certificates, any camera could have a validation or certificate system in place to prove that the data is straight from an unmodified validated camera sensor.