From: krzk@kernel.org (Krzysztof Kozlowski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/3] crypto: hw_random - Add new Exynos RNG driver
Date: Tue, 28 Mar 2017 20:43:08 +0300 [thread overview]
Message-ID: <20170328174308.lwcogz2ae3bwnumr@kozik-lap> (raw)
In-Reply-To: <93183073.lKE0KLq0vu@tauon.atsec.com>
On Tue, Mar 28, 2017 at 07:41:47PM +0200, Stephan M?ller wrote:
> Am Dienstag, 28. M?rz 2017, 18:48:24 CEST schrieb Krzysztof Kozlowski:
>
> Hi Krzysztof,
>
> > I tested a little bit and:
> > 1. Seeding with some value
> > 2. generating random,
> > 3. kcapi_rng_destroy+kcrng_init, (I cannot do a hardware reset except
> > reboot of entire system)
> > 4. seeding with the same value as in (1) - different random numbers.
> >
> > Doing a system reboot and repeating above - different random numbers
> > (all are different: step (2) and in (4)).
> >
> > Your test case also produces different random values every time.
>
> Then I would assume that simply adding an outer loop to your for() loop to
> inject seed larger than the minimum required seed size should be fine.
Yes, makes sense. I'll send an updated version of patch.
Best regards,
Krzysztof
next prev parent reply other threads:[~2017-03-28 17:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-25 16:26 [PATCH v3 0/3] crypto: hw_random - Add new Exynos RNG driver Krzysztof Kozlowski
2017-03-25 16:26 ` [PATCH v3 1/3] " Krzysztof Kozlowski
2017-03-26 15:20 ` PrasannaKumar Muralidharan
2017-03-26 16:01 ` Krzysztof Kozlowski
2017-03-26 16:05 ` Stephan Müller
2017-03-26 16:46 ` PrasannaKumar Muralidharan
2017-03-26 17:05 ` Stephan Müller
2017-03-26 18:09 ` Krzysztof Kozlowski
2017-03-26 17:11 ` Stephan Müller
2017-03-26 18:00 ` Krzysztof Kozlowski
2017-03-26 21:25 ` Stephan Müller
2017-03-27 4:23 ` PrasannaKumar Muralidharan
2017-03-27 13:53 ` Stephan Müller
2017-03-28 16:48 ` Krzysztof Kozlowski
2017-03-28 17:41 ` Stephan Müller
2017-03-28 17:43 ` Krzysztof Kozlowski [this message]
2017-03-25 16:26 ` [PATCH v3 2/3] ARM: exynos_defconfig: Enable Exynos RNG and user-space crypto API Krzysztof Kozlowski
2017-03-25 16:26 ` [PATCH v3 3/3] ARM: multi_v7_defconfig: " Krzysztof Kozlowski
2017-03-25 16:32 ` [PATCH v3 0/3] crypto: hw_random - Add new Exynos RNG driver Stephan Müller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170328174308.lwcogz2ae3bwnumr@kozik-lap \
--to=krzk@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox