No, that would actually be feasible with enough effort.
The real question is what do you do if someone takes a screenshot of that image? Since the picture must be in a format that can be shown, nothing is stopping people from writing software that just strips the authentication from the camera file.
Edit: misread the problem. You need to get a private key to make forgeries and be able to say “no look, this was taken with a camera”. Stripping the signature from photographs is the opposite of what we want here.
As a programmer, I gotta say, that’s probably not technically feasible in a sensible way.
Every camera has got to have an embedded key, and if any one of them leaks, the system becomes worthless.
No, that would actually be feasible with enough effort.
The real question is what do you do if someone takes a screenshot of that image? Since the picture must be in a format that can be shown, nothing is stopping people from writing software that just strips the authentication from the camera file.
Edit: misread the problem. You need to get a private key to make forgeries and be able to say “no look, this was taken with a camera”. Stripping the signature from photographs is the opposite of what we want here.