The White House wants to ‘cryptographically verify’ videos of Joe Biden so viewers don’t mistake them for AI deepfakes::Biden’s AI advisor Ben Buchanan said a method of clearly verifying White House releases is “in the works.”

  • JasSmith@sh.itjust.works
    link
    fedilink
    English
    arrow-up
    6
    ·
    9 months ago

    Great points and I agree. I also think the signature needs to be built into the stream in a continuous fashion so that snippets can still be authenticated.

    • cynar@lemmy.world
      link
      fedilink
      English
      arrow-up
      3
      ·
      9 months ago

      Agreed. Embed a per-frame signature it into every key frame when encoding. Also include the video file time-stamp. This will mean any clip longer than around 1 second will include at least 1 signed frame.

      • Natanael@slrpnk.net
        link
        fedilink
        English
        arrow-up
        1
        ·
        9 months ago

        Merkle tree hashes exists for this purpose

        Note that videos uses “keyframes” so you can’t extract arbitrary frames in isolation, you need to pull multiple if the frame you’re snapshotting isn’t a keyframe itself