On 2013-09-08 3:48 AM, David Johnston wrote:
Claiming the NSA colluded with intel to backdoor RdRand is also to accuse me personally of having colluded with the NSA in producing a subverted design. I did not.
Well, since you personally did this, would you care to explain the very strange design decision to whiten the numbers on chip, and not provide direct access to the raw unwhitened output.
A decision that even assuming the utmost virtue on the part of the designers, leaves open the possibility of malfunctions going undetected.
That is a question a great many people have asked, and we have not received any answers.
Access to the raw output would have made it possible to determine that the random numbers were in fact generated by the physical process described, since it is hard and would cost a lot of silicon to simulate the various subtle offwhite characteristics of a well described actual physical process.
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