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From: Herbert Xu <herbert@gondor.apana.org.au>
To: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>,
	davem@davemloft.net, maxime.ripard@free-electrons.com,
	Chen-Yu Tsai <wens@csie.org>,
	linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] crypto: sun4i-ss: support the Security System PRNG
Date: Thu, 15 Dec 2016 14:09:04 +0800	[thread overview]
Message-ID: <20161215060904.GB13152@gondor.apana.org.au> (raw)
In-Reply-To: <CANc+2y7C-=S_5MZuqP0Q+y2FwHqS2_p9-iYuAu1A1tXqzxp_oA@mail.gmail.com>

On Thu, Dec 15, 2016 at 12:47:16AM +0530, PrasannaKumar Muralidharan wrote:
> Should there be a mandate that driver will be accepted only when it
> passes 'rngtest'. This will make sure that prng drivers won't get
> added in future.

You cannot use software to distinguish between a PRNG and an HRNG.
We can only rely on the veracity of the documentation.

Cheers,
-- 
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

      reply	other threads:[~2016-12-15  6:09 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-05 10:48 [PATCH v2] crypto: sun4i-ss: support the Security System PRNG Corentin Labbe
2016-12-05 12:37 ` Herbert Xu
2016-12-05 12:57   ` Corentin Labbe
2016-12-07 12:09     ` Herbert Xu
2016-12-07 12:51       ` Corentin Labbe
2016-12-08  9:06         ` Herbert Xu
2016-12-08  9:24           ` Corentin Labbe
2016-12-08 11:01             ` PrasannaKumar Muralidharan
2016-12-13 14:10           ` Corentin Labbe
2016-12-13 15:23             ` PrasannaKumar Muralidharan
2016-12-13 15:33               ` Corentin Labbe
2016-12-14  5:05             ` Herbert Xu
2016-12-14  6:03               ` Corentin Labbe
2016-12-14 19:17               ` PrasannaKumar Muralidharan
2016-12-15  6:09                 ` Herbert Xu [this message]

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