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The search for truly random numbers in the kernelThe search for truly random numbers in the kernelPosted Sep 19, 2013 6:25 UTC (Thu) by eru (subscriber, #2753)Parent article: The search for truly random numbers in the kernel
It seems the truly paranoid should solder their own hardware RNG. If I remember correctly, a basic RNG is not hard: wire a cheap transistor suitably and sample the resulting noisy signal. The last part is harder today. In the past, one could repurpose the printer port or an analogue joystick port for simple digitizing, but they have disappeared from current computers
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The search for truly random numbers in the kernel Posted Sep 20, 2013 17:13 UTC (Fri) by broonie (subscriber, #7078) [Link]
A sound card is usually pretty straightforward to get - a USB one can be added if required.
The search for truly random numbers in the kernel Posted Sep 20, 2013 17:37 UTC (Fri) by pizza (subscriber, #46) [Link]
There's not enough entropy (ie noise) in my server environment for audio-based entropy sources to work. I found that surprising, but that's what audio-entropyd determined.
I simply don't have any meaningful source of entropy available, which is why I'm resorting to hacking together some sort of USB-based RNG.
The search for truly random numbers in the kernel Posted Sep 20, 2013 20:33 UTC (Fri) by giraffedata (subscriber, #1954) [Link] I thought broonie's point was that you can use a sound processor to sample eru's transistor's output.
The search for truly random numbers in the kernel Posted Sep 21, 2013 13:19 UTC (Sat) by broonie (subscriber, #7078) [Link]
Yes, just using it as an ADC.
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