2 ms·
Couldn't you just take a picture with the same camera and then hash it? The probability of getting the exact same set of pixels is small and it's certainly not
by Houshalter 12y ago
Couldn't you just take a picture with the same camera and then hash it? The probability of getting the exact same set of pixels is small and it's certainly not predictable.
- happyhappy 12y agoI wondered the same thing. Noise in the picture should also make it extremely hard to predict. For cryptographic use one would only need 256 bits of entropy to seed a CPRNG, and I can't see how this amount of entropy wouldn't be present in a normal photo.