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"Every type of video authentication system I've ever heard proposed can be defeated by simply pointing a 'trusted' video camera at a screen playing a fake video
by Reason077 7y ago
"Every type of video authentication system I've ever heard proposed can be defeated by simply pointing a 'trusted' video camera at a screen playing a fake video."
That's a good point. But I'm imagining situations where the camera itself is a reasonably secure device. For example, a city CCTV camera or a police body worn camera.
If a video stream can be securely (cryptographically) matched to a particular device, with an unforgeable (blockchain?) timestamp, it would increase confidence in video evidence presented in court, for example.