From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: ep93xx: toss the device ID into the entropy pool
Date: Tue, 23 Jun 2015 22:39:40 +0200 [thread overview]
Message-ID: <2274537.5rEXu4xPQS@wuerfel> (raw)
In-Reply-To: <1434638859-27381-1-git-send-email-linus.walleij@linaro.org>
On Thursday 18 June 2015 16:47:39 Linus Walleij wrote:
> @@ -862,6 +863,12 @@ static const char __init *ep93xx_get_soc_id(void)
> if (id != id2)
> return "invalid";
>
> + /* Toss the unique ID into the entropy pool */
> + add_device_randomness(&id2, 4);
> + add_device_randomness(&id3, 4);
> + add_device_randomness(&id4, 4);
> + add_device_randomness(&id5, 4);
> +
>
A stupid question from someone who does not understand computer
security: Is there any concern about being able to identify a
particular machine based on the random numbers generated at
runtime afterwards?
Arnd
next prev parent reply other threads:[~2015-06-23 20:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 14:47 [PATCH] ARM: ep93xx: toss the device ID into the entropy pool Linus Walleij
2015-06-18 17:15 ` Hartley Sweeten
2015-06-23 20:39 ` Arnd Bergmann [this message]
2015-06-24 6:14 ` Michael van der Westhuizen
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