Re:Harnessing chaos in Cloudflare offices
by jjeaff on Friday March 08, 2024 @02:10PM
(#39644909)
That's interesting. But, assuming the research found it possible to verify which device a photo came from based on the sensor noise, doesn't that kind of go against the idea that there is a lot of entropy in sensor pattern noise?
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No, because you could have it that the device is always identifiable, but nevertheless producing a randomly varying sequence of images.
Take printers for example, with some known to print a signature. Clearly they can still print a sheet a solid colour (or a number 0-100, or something character or whatever) at random (given some random source & control for doing so I mean) despite the device being identifiable.