linux-kernel - Re: [PATCH v2] crypto: sun4i-ss: support the Security System PRNG

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Message-ID: <20161207120900.GC20680@gondor.apana.org.au>
Date:   Wed, 7 Dec 2016 20:09:00 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     davem@...emloft.net, maxime.ripard@...e-electrons.com,
        wens@...e.org, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] crypto: sun4i-ss: support the Security System PRNG

On Mon, Dec 05, 2016 at 01:57:38PM +0100, Corentin Labbe wrote:
>
> So how to expose PRNG to user space ? or more generally how to "use" a PRNG ?

We do have the algif_rng interface.

> I found hisi-rng, crypto4xx_ and exynos-rng which seems to be PRNG used as hwrng.

Thanks for checking.  Patches to remove these are welcome.

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