[arch-general] [arch-gen] does using tmp-rng enables tpm at all?

Javier Vasquez j.e.vasquez.v at gmail.com
Wed Dec 24 21:22:52 UTC 2014


> On Wed, Dec 24, 2014 at 3:03 PM, Daniel Micay <danielmicay at gmail.com> wrote:
>
> Ivy Bridge and later have an RDRAND instruction exposing a hardware
> random number generator so there's no need for any TPM stuff. RDSEED
> will be provided by Broadwell and later for lower-level access to the
> hardware entropy rather than via a CSPRNG. It's already leveraged by the
> kernel and libraries like the C++ <random> implementation in libstdc++.

Great to know.  Perhaps there will be no need for rng-tools neither
haveged for those processors, :-)

Bad thing my i5/i7 processors are still sandy bridge.  So whether I
use tpm-rng (rng-tools doesn't read it, so no luck), or I use haveged,
or nothing, :-)

Thanks for answering.

-- 
Javier


More information about the arch-general mailing list