[PATCH] getrandom: new applet

Denys Vlasenko vda.linux at googlemail.com
Sun Jul 3 16:44:22 UTC 2016


On Tue, Jun 28, 2016 at 6:56 PM, Etienne CHAMPETIER
<champetier.etienne at gmail.com> wrote:
> first user of this applet will be LEDE (OpenWrt) to save an urandom seed
> using getrandom() (so we are sure /dev/urandom pool is initialized)


Please be more specific which task you want to achieve with this tool.

I googled for this name and no such tool exists (yet?) in distros,
I hesitate to introduce a new tool and then have an API collision
when they add something similar.

BTW, I know that security people would scream bloody murder,
but wouldn't

cd /proc && cat cpuinfo meminfo stat interrupts diskstats slabinfo
schedstat buddyinfo >/dev/random

in practice work quite satisfactorily for adding some entropy at boot time?
If you don't think so, can you demonstrate a setup where the output is
predictable?


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