Linux-style kernel PRNGs and the FIPS140-2 test

Adam Fields fields at surgam.net
Tue Jan 15 15:41:38 EST 2002


Thor Lancelot Simon says:
> Many operating systems use "Linux-style" (environmental noise
> stirred with a hash function) generators to provide "random"
> and pseudorandom data on /dev/random and /dev/urandom
> respectively.  A few modify the general Linux design by adding an
> output buffer which is not stirred so that bits which have already
> been output are not stirred into the pool of "new" "random" data
> (IMO, not doing this is insane, but that's a different subject).
[...]

Does the above description also apply to truerand, or is that subtly
different?
				- Adam

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