21Mar
Could videos be authenticated using private and public keys?
I saw a news report about now freely available software to make "deepfake" videos. Couldn't videos be internally marked using a private key, so that everyone could verify the originator using a public key? This could be built in to browsers so that everyone could see if something was fake or not.
Is it technically possible to mark a video stream throughout with something that can't be spoofed or removed? Then if a video had no mark, we would know it was rubbish.
