[CentOS-virt] Would a hardware TRNG benefit VMs?
Digimer
lists at alteeve.ca
Wed Jul 17 04:02:03 UTC 2013
On 16/07/13 18:01, Pete Travis wrote:
>
> On Jul 16, 2013 10:20 AM, "Digimer" <lists at alteeve.ca
> <mailto:lists at alteeve.ca>> wrote:
> >
> > On 16/07/13 06:30, Stefano Stabellini wrote:
> > > On Mon, 15 Jul 2013, Digimer wrote:
> > >> On 15/07/13 07:04, Stefano Stabellini wrote:
> > >>> On Sat, 13 Jul 2013, Digimer wrote:
> > >>>> Hi all,
> > >>>>
> > >>>> I've been curious about using hardware true random number
> generators
> > >>>> in my VM clusters. This got me wondering about the VM's /dev/random
> > >>>> source... If I setup a hardware TRNG on the host, would the VM's
> also
> > >>>> benefit from it?
> > >>>
> > >>> Xen VMs would not be able to benefit from it. I don't know about KVM.
> > >>
> > >> Would you be able to elaborate on why not? I know Xen and KVM
> differ, but this
> > >> is not a topic I have seen discussed at all before, so any insight
> would be
> > >> helpful and appreciated! :)
> > >
> > > Because we don't have a paravirtualized interface to export the
> > > randomness to the guest.
> > > It would be a nice small little project to do that though.
> > >
> >
> > Ah, ok. I'm an admin, not a programmer, so I am not sure what would be
> > needed. Given how popular VMs are now, I can imagine it would be a nice
> > feature to have. If it's a "small" project, then all the better! :)
> >
> > Thanks!
> >
> > --
> > Digimer
> > Papers and Projects: https://alteeve.ca/w/
> > What if the cure for cancer is trapped in the mind of a person without
> > access to education?
> >
>
> There is such a thing, see
> https://fedoraproject.org/wiki/Features/Virtio_RNG
>
> --Pete
Ok, that is _awesome_! I hope it gets into RHEL 7. Thank you kindly for
the link!
--
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?
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