I work at Axis, which makes surveillance cameras.[0] This comment is my own, and is not on behalf of the company. I'm using a throwaway account because I'd rather not be identified (and because surveillance is quite controversial here). Axis has developed a way to cryptographically sign video, using TPMs (Trusted Platform Module) built into the cameras and embedding the signature into the h.264 stream.[1] The video c…
But most videos where we're worried about deep fakes are videos that come from other people's cameras, where we don't know which signature should be valid, nor whether it should have a signature.