Re: random(4) changes

Pavel Machek
2016-04-26T18:44:45Z

Hi1

> > When dropping the add_disk_randomness function in the legacy /dev/random, I
> > would assume that without changes to add_input_randomness and
> > add_interrupt_randomness, we become even more entropy-starved.
>
> Sure, but your system isn't doing anything magical here. The main
> difference is that you assume you can get almost a full bit of entropy
> out of each interrupt timing, where I'm much more conservative and
> assume we can only get 1/64th of a bit out of each interrupt timing.

Maybe 1/64th of a bit is a bit too conservative? I guess we really
have more than one bit of entropy on any system with timestamp
counter....

Making it 1/2 of bit (or something) should be very easy way to improve
entropy early during boot...

Best regards,
Pavel
--
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