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Re: FYI/RFC: early-rng-init-tools

On Sun, 2019-02-24 at 20:10 +0000, Thorsten Glaser wrote:
> Hi Philipp,
> >FTR this is supposedly fixed on the main architectures featuring an
> >in the CPU by linux 4.19.20-1, which enabled RANDOM_TRUST_CPU. Which
> Ben
> that’s what I referred to by…
> >>• it does not use/add CPU RNG output where present
> >>  ‣ though Linux can now do that itself, some command-line flag…
> … but that only helps if the CPU has such instructions,

Indeed, on x86 this requires the RDRAND instruction which Intel
introduced in 2011 (Ivy Bridge core) and AMD only implemented in 2015
(Excavator core).


Ben Hutchings
The obvious mathematical breakthrough [to break modern encryption]
would be development of an easy way to factor large prime numbers.
                                                           - Bill Gates

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