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Turbid: A High-Entropy Random Generator (2005) (av8n.com)
26 points by Tomte on June 14, 2017 | hide | past | favorite | 1 comment


> It uses the thermal fluctuations intrinsic to the computer’s audio I/O system.

Took me a bit to find it, but here's the source of the entropy. This leaves out one of the most underserved clients of randomness: virtual machine guests. In that case I think it better to stick with haveged[0], or pass the host's entropy down to the guest and call it a day.

We really don't need a "constant" source of entropy as such is provided by Torbid, unless you're using some piece of software that insists on reading from /dev/random instead of urandom. Instead we need just enough random bytes to seed a well tested and suitable CSPRNG, such as one based on the Fortuna algorithm[1].

0. http://www.issihosts.com/haveged/

1. https://en.m.wikipedia.org/wiki/Fortuna_(PRNG)




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