linux-kernel - Re: [PATCH v2 3/4] crypto: exynos - Reseed PRNG after generating 2^16 random bytes

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Message-ID: <CAJKOXPeCoks3jx6GCLiCj4OwmeT362rz8k+Yt_Mk516N4rrRHQ@mail.gmail.com>
Date:   Mon, 11 Dec 2017 15:57:17 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Łukasz Stelmach <l.stelmach@...sung.com>
Cc:     robh+dt@...nel.org, Stephan Mueller <smueller@...onox.de>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Kukjin Kim <kgene@...nel.org>, linux-crypto@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v2 3/4] crypto: exynos - Reseed PRNG after generating 2^16
 random bytes

On Mon, Dec 11, 2017 at 3:06 PM, Łukasz Stelmach <l.stelmach@...sung.com> wrote:
> Cc: Marek Szyprowski <m.szyprowski@...sung.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>

Same as in 1/4 and 2/4.

>
> Reseed PRNG after reading 65 kB of randomness. Although this may reduce
> performance, in most cases the loss is not noticeable.

You missed the comment about mentioning the change in time. Both from
me and Stephan.

Best regards,
Krzysztof