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(A "solution" which requires end users to authenticate everything themselves is going to have the same level of adoption as pgp, i.e. near zero)
Not to mention the inevitable abuse by whoever controls the keys.
And how do you solve the problem of a powerful entity telling you that the cropped image is authentic, or there will be consequences? People know what's going on, they bend for fear of breaking. No technology is changing that.
If it is cropped, then it would not be provably authentic. So anyone seeing it, could see that it is modified.
> how do you solve the problem of a powerful entity telling you that the cropped image is authentic
Well, because you can check. You verify the image yourself, see that it is not authenticated, and then you know.
Powerful entity can tell you to install their root certificate just like it happens in China. This is a different problem.
Advertisers are going to want to postprocess images and have the green check.
You could of course fake green checkmark in CSS but this is already an issue with faking other browser UI elements, including address bar–it’s a known problem.
One way to solve this is having a browser picker, that is a button you click in trusted area of browser UI that lets you inspect any image on the page. Similar thing is possible with smartphone UI, you go to app overview/carousel and long press on an image in app, this launches photo inspection portal.
(1) a trusted application
(2) using a builtin device camera
(3) of a device running attested trusted operating system
(4) and any subsequent edits reference such photo’s original hash.
Hopefully stronger assertions could come in the future. This is just to combat digital forgeries and synthetically generated images. It also does nothing against real-world forgeries like actors wearing costumes or makeup.
That's the opposite of what we should do. If you do case by case then people will always find reasons why it's no big deal if "their" side did it while it's really bad when the other side did it.
No, we need to universally condemn this. No matter who did it and when and how. This is lying and propaganda, and it's bad even if I agree with the ends. But the means are to be condemned by everybody.
Kind of the dual to "I disagree with what you are saying but I'll fight for your right to say it." It's now "I agree with what you are trying to achieve but I'll fight against the way in which you are trying to achieve it."
Oh you now want a 360 degree shot to prove this didn't happen? Well then they stand behind a tree or a car or some other object to hide parts of the scene behind. etc. etc. There is no technical solution to this problem.
Older photo is the real one.
Not at all. I'm not sure what I said that makes you think that.
What I say, though, is that we don't know (either individually or as a society) how to operate in this new environment. It's making it hard to stay sane as an individual, and to stay functioning as a society.
Humanity is, after all, crawling out of at least the last 3000 years of recorded history of rulers telling everyone else how to live, like it or not.
We've only really been doing this democracy thing semi-successfully for a handful of centuries.
In the overall scheme of things, we're still pretty new at not being ordered around by people stronger than us. It's a hard habit to break on both sides.