If everyday people are allowed to possess hardware that can sign images, it would only require someone feeding the fake images into the sensor that would be rec

If everyday people are allowed to possess hardware that can sign images, it would only require someone feeding the fake images into the sensor that would be recording. Then, they would have a verified yet still fake image, which if anything would lead to more people falling for it. You could require that information about the recording also be included (gps, timestamp, etc.) but not only does that harm privacy, it means that when someone fakes it then people will trust the fake even more.