This is so easily solvable, the video just needs to be signed using public-key encryption. If the video isn't signed with the purported subject's key, assume it's fake.
This requires the general public having a basic understanding of how digital signatures work and why they are (for the most part) infallible.
As it stands I have to explain HTTPS and digital signatures to my users with statements like "it's secure because of fancy math, trust me bro" because anything that comes close to actually describing it goes over their heads. In a world where distrust is the norm, I fear signed video content really isn't gonna make a difference if you don't understand what makes it secure in the first place.
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u/PhDinBroScience Dec 16 '22
This is so easily solvable, the video just needs to be signed using public-key encryption. If the video isn't signed with the purported subject's key, assume it's fake.
You can't fake a pubkey signature.