On 2013-09-09 3:18 PM, Greg Rose wrote:
I actually hate to point this out, but having access to something that "looks like" a raw entropy source proves nothing.
A genuine hardware noise source will show colored noise, which is very hard to simulate in software, and especially hard to simulate at any reasonable speed.
If the entropy source is real, it will show its analog characteristics leaking into the digital abstraction. The correlations and anti correlations between nearby bits will reflect the analog values of the circuit, thus no two chips will show quite the same correlations, and the correlations will vary with temperature and overclocking. These analog variations would be compelling evidence that the entropy source is the claimed circuit or something very like the claimed circuit.
Any Intel misconduct would show up in the color of the noise, it being very hard to create a digital pseudo noise source that displays subtly varying color at high speed, while hardware true random noise sources almost unavoidably display subtly varying noise color.)
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