From: David Laight <David.Laight@ACULAB.COM>
To: "'Jason A. Donenfeld'" <Jason@zx2c4.com>,
"Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Cc: Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Jann Horn <jannh@google.com>,
"Dominik Brodowski" <linux@dominikbrodowski.net>,
Guenter Roeck <linux@roeck-us.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
Theodore Ts'o <tytso@mit.edu>,
Sandy Harris <sandyinchina@gmail.com>
Subject: RE: [PATCH] random: allow writes to /dev/urandom to influence fast init
Date: Wed, 23 Mar 2022 14:01:34 +0000 [thread overview]
Message-ID: <7cde489e73c8448b95a1b7bc6ed1d75b@AcuMS.aculab.com> (raw)
In-Reply-To: <CAHmME9rsvxczJrhPwRX6nyrh9NB2AuJqkEKrTLx-G-T1J6_czQ@mail.gmail.com>
From: Jason A. Donenfeld
> Sent: 23 March 2022 04:48
...
> - Plenty of things are seeding the RNG correctly, and buildroot's
> shell script is just "doing it wrong".
>
> On that last point, I should reiterate that buildroot's shell script
> still isn't actually initializing the RNG, despite what it says in its
> echo; there's never been a way to initialize the RNG from a shell
> script, without calling out to various special purpose ioctl-aware
> binaries.
Perhaps the very first write after boot could be assumed to
be valid initialisation data?
(On top of a few other tests.)
Then I need a patch against 5.10 :-)
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2022-03-23 14:01 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 19:14 Jason A. Donenfeld
2022-03-22 20:42 ` Linus Torvalds
2022-03-22 23:54 ` Jason A. Donenfeld
2022-03-23 2:15 ` David Laight
2022-03-23 2:50 ` Jason A. Donenfeld
2022-03-23 8:43 ` Rasmus Villemoes
2022-03-24 14:12 ` Jason A. Donenfeld
2022-03-23 11:45 ` David Laight
2022-03-23 3:35 ` Theodore Ts'o
2022-03-23 4:00 ` Jason A. Donenfeld
2022-03-23 12:31 ` Theodore Ts'o
2022-05-23 17:59 ` Pavel Machek
2022-03-23 4:30 ` Alex Xu (Hello71)
2022-03-23 4:47 ` Jason A. Donenfeld
2022-03-23 14:01 ` David Laight [this message]
2022-03-23 19:53 ` Jason A. Donenfeld
2022-03-24 18:01 ` Eric Biggers
2022-03-24 3:18 ` Jason A. Donenfeld
2022-03-24 16:28 ` Alex Xu (Hello71)
2022-03-24 17:20 ` Jason A. Donenfeld
2022-03-24 19:03 ` Alex Xu (Hello71)
2022-03-24 18:26 ` Eric Biggers
2022-03-24 18:31 ` Jason A. Donenfeld
2022-06-19 16:44 ` Pavel Machek
2022-03-24 19:53 ` Eric Biggers
2022-03-24 20:25 ` Jason A. Donenfeld
2022-06-19 16:56 ` Pavel Machek
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