[CentOS-virt] Would a hardware TRNG benefit VMs?

Tue Jul 16 16:20:17 UTC 2013
Digimer <lists at alteeve.ca>

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! :)


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