On Sun, 1 May 2022 18:35:00 +0200
Emmanuel Deloget <[email protected]> wrote:
> > There is also the case (that on my systems at least) udev
> > initialisation reads from /dev/[u]random well before the S20
> > script loads any saved entropy.
> > I've not tried to find out what the value is used for.
>
> I find at least one occurrence where the goal is to create a
> random delay in udev-watch.c [1].
Yes, but that spot does seem to have a fallback.
But why is the seeding being run only at S20, way after udev?
seedrng would not _have_ to rely on /dev/{,u}random being there, we
could as well mknod our own node(s) and could hence run way earlier, i
assume. Would that help? We'd probably have less jitter accumulated if
fewer other stuff did run before us, but still.
thanks,
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