It wasn't elaborated on in the original comment, but yes you're absolutely correct, the imaging sensor itself would also need to be part of the cryptographic chain-of-trust. This is likely the most crucial part of such a system, as all the other hardware aspects are already starting to become generally available.
> Anyway who is gonna build this?
If and when specialized imaging sensors become available, I don't see this being a huge lift. One wouldn't even need purpose-built cameras for all but the most high-assurance recording requirements. Remote attestation and trusted code execution is already being incorporated into most newer devices. Bringing it all together would mostly be a software problem at that point.
Of course, there would also need to be a value proposition to justify any kind of work towards this. I personally see this as an inevitability given the frightening pace of progress in the ML field, and the increasing public concern over things like deepfakes.
You could start a startup building the specialized imaging sensors, with the aim of being acquired by $bigtech so they can tell congress "yes we are doing something about deepfakes" and eventually tell consumers "you can tell that photos taken by our devices/posted to our site are real, the other sites are full of BS"
I don't see how it all comes together without a partnership between the tech companies that display media (Youtube, Facebook, Twitter, etc.) and the tech companies that provide hardware (Apple, Google, Samsung, etc.) Maybe what's needed is to go through a nonprofit like the Partnership on AI.
Google is an interesting target because they are basically the only company that's both a media displayer and a hardware provider. If Android devices get a "verified non-deepfake" capability before Apple devices get it, I could see that as being a significant leg up for Android actually. It encroaches on Apple's traditional branding of "we make products for important people". I wonder if the Titan M has capabilities which could be leveraged. https://android-developers.googleblog.com/2018/10/building-t...
Google would probably sell loads of Pixel phones if it upranked "verified non-deepfake" Youtube videos recorded using Pixel cameras & microphones. Every aspiring Youtube star would know to record using a Pixel. The deepfake thing is a pretty good excuse to defend against an antitrust lawsuit, especially if Google can say that the capability will eventually roll out to competing hardware.
> Anyway who is gonna build this?
If and when specialized imaging sensors become available, I don't see this being a huge lift. One wouldn't even need purpose-built cameras for all but the most high-assurance recording requirements. Remote attestation and trusted code execution is already being incorporated into most newer devices. Bringing it all together would mostly be a software problem at that point.
Of course, there would also need to be a value proposition to justify any kind of work towards this. I personally see this as an inevitability given the frightening pace of progress in the ML field, and the increasing public concern over things like deepfakes.
Thank you for your comments!