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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 aga
by jjeaff 3y ago
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?
- OJFord 3y agoNo, 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.