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SubjectRe: [PATCH 3/3] hwrng: msm - Add support for prng v2
On Fri, Jun 22, 2018 at 11:27:59AM +0300, Stanimir Varbanov wrote:
> Hi Herbert,
>
> On 06/21/2018 02:53 PM, Herbert Xu wrote:
> > On Thu, Jun 21, 2018 at 02:27:10PM +0300, Stanimir Varbanov wrote:
> >>
> >> OK, I just wanted to say that it is _not_ PRNG and the register names
> >> gives us wrong impression.
> >
> > So does it generate one bit of output for each bit of hardware-
> > generated entropy like /dev/random? Or does it use a hardware-
> > generated seed to power a PRNG?
>
> I believe it is the second one. Isn't the second one SP 800-90A?

In that case it should switch over to algif_rng.

Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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