[CentOS-virt] Would a hardware TRNG benefit VMs?
nanook at eskimo.com
Tue Jul 16 16:44:35 UTC 2013
I would second that, wish I had the knowledge to do it, but I can see a
lot of useful applications, never worry about having enough entropy for various
encryption engines, scientific projects, etc.
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On Tue, 16 Jul 2013, Digimer wrote:
> Date: Tue, 16 Jul 2013 12:20:17 -0400
> From: Digimer <lists at alteeve.ca>
> Reply-To: Discussion about the virtualization on CentOS
> <centos-virt at centos.org>
> To: Stefano Stabellini <stefano.stabellini at eu.citrix.com>
> Cc: Discussion about the virtualization on CentOS <centos-virt at centos.org>
> Subject: Re: [CentOS-virt] Would a hardware TRNG benefit VMs?
> 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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