3 ms·
The question is, which sources are "known secure"? There have been AMD systems where RDRAND is broken and always returns the same value -- I bet those users wou
by CJefferson 5y ago
The question is, which sources are "known secure"? There have been AMD systems where RDRAND is broken and always returns the same value -- I bet those users would have been happy if their webcam got mixed in.
- IgorPartola 5y agoEven if their webcam was pointed at a black wall in a dark room?
- CJefferson 5y agoI just checked and my camera, even if a close the cover and put it under a blanket, still doesn't return straight zeroes. As long as there is some "fuzz" there is something useful to generate randomness. Also, it would be reasonable for the RNG to notice some source is returning input of no value (straight zeroes) and reject it.
- adzm 5y agoYou can actually use a camera sensor as a kind of Geiger counter by blocking normal light eg with foil and measuring fluctuations in the results!