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While it does not seem enough to guarantee authenticity, this scheme does seem like it would prevent creating a video from scratch pretending to be taken at a p
by ewidar 1y ago
While it does not seem enough to guarantee authenticity, this scheme does seem like it would prevent creating a video from scratch pretending to be taken at a protected location without having express knowledge of the key or the flickering at that moment in time.
Definitely interesting for critical event and locations, but quite niche.
- SoftTalker 1y agoMy question would be, who does have "express knowledge of the key or the flickering at that moment in time" and are they trustworthy?
- ewidar 1y agoThat would be whoever owns the private key, no? It's similar to any other private/public key scheme: it just serves to prove the signature was generated by the owner (here whoever owns the location at which the video is taken). But I guess you could imagine multiple flickering patterns per location, with each pattern being owned by a different entity (an NGO + a governement + a private company for example), in essence doing a multi-sig of the video.