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From: "Michael S. Zick" <lkml@morethan.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Ingo Molnar <mingo@elte.hu>, Willy Tarreau <w@1wt.eu>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	security@kernel.org, Linux@hera.kernel.org, stable@kernel.org,
	Cox <alan@lxorguk.ukuu.org.uk>,
	Arjan@hera.kernel.org, List <linux-kernel@vger.kernel.org>,
	Alan@hera.kernel.org, Eric Paris <eparis@redhat.com>,
	Jake Edge <jake@lwn.net>,
	linux-security-module@vger.kernel.org, mingo@redhat.com,
	Matt Mackall <mpm@selenic.com>, Dave Jones <davej@redhat.com>,
	James Morris <jmorris@namei.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Roland McGrath <roland@redhat.com>
Subject: Re: [Security] [patch] random: make get_random_int() more random
Date: Sat, 16 May 2009 10:09:28 -0500	[thread overview]
Message-ID: <200905161009.32178.lkml@morethan.org> (raw)
In-Reply-To: <20090516075746.4b8f3ed6@infradead.org>

On Sat May 16 2009, Arjan van de Ven wrote:
> On Sat, 16 May 2009 09:28:16 -0500
> "Michael S. Zick" <lkml@morethan.org> wrote:
> > 
> > Still getting kernel messages that there isn't a test for the rng - -
> > One (of many) ways to test the quality is to submit a bit string
> > sample to the Berlekamp-Massey algorithm; perhaps from repeated calls
> > to the generation function (it depends on your desired confidence
> > level).
> > 
> 
> or we bite the bullet and implement the Fortuna PRNG algorithm
> and feed it as much as we can, rather than caring if any if the sources
> is not 100.000% perfect.
> 

A reasonable cross-platform solution.
I just had to ping for supporting the VIA specific hardware solution.

Mike

  reply	other threads:[~2009-05-16 15:09 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-04 18:51 [PATCH] proc: avoid information leaks to non-privileged processes Jake Edge
2009-05-04 19:00 ` [Security] " Linus Torvalds
2009-05-04 19:51   ` Arjan van de Ven
2009-05-04 20:20     ` Eric W. Biederman
2009-05-04 22:24       ` Linus Torvalds
2009-05-04 23:26         ` Arjan van de Ven
2009-05-04 23:54         ` Linus Torvalds
2009-05-05  7:51           ` Eric W. Biederman
2009-05-05 15:17             ` Linus Torvalds
2009-05-05 15:35               ` Linus Torvalds
2009-05-05 16:18                 ` Matt Mackall
2009-05-05 16:10               ` Matt Mackall
2009-05-05  5:50         ` Matt Mackall
2009-05-05  6:31           ` Ingo Molnar
2009-05-05  8:14             ` Eric W. Biederman
2009-05-05 19:52               ` Ingo Molnar
2009-05-05 20:22                 ` Matt Mackall
2009-05-05 21:20                   ` Eric W. Biederman
2009-05-06 10:33                     ` Ingo Molnar
2009-05-06 10:30                   ` Ingo Molnar
2009-05-06 16:25                     ` Matt Mackall
2009-05-06 16:48                       ` Linus Torvalds
2009-05-06 17:57                         ` Matt Mackall
2009-05-07  0:50                           ` Matt Mackall
2009-05-07 15:02                             ` Ingo Molnar
2009-05-07 18:14                               ` Matt Mackall
2009-05-07 18:21                                 ` Ingo Molnar
2009-05-07 18:41                                 ` Ingo Molnar
2009-05-07 19:24                                   ` Matt Mackall
2009-05-07 15:16                           ` Florian Weimer
2009-05-07 16:55                             ` Matt Mackall
2009-05-07 17:53                               ` Linus Torvalds
2009-05-07 18:42                                 ` Matt Mackall
2009-05-06 20:09                         ` [patch] random: make get_random_int() more random Ingo Molnar
2009-05-06 20:41                           ` Matt Mackall
2009-05-06 20:51                             ` Ingo Molnar
2009-05-06 21:10                               ` Matt Mackall
2009-05-06 21:24                                 ` Ingo Molnar
2009-05-14 22:47                           ` Jake Edge
2009-05-14 22:55                             ` [Security] " Linus Torvalds
2009-05-15 13:47                               ` Ingo Molnar
2009-05-15 15:10                                 ` Jake Edge
2009-05-16 10:00                                 ` Willy Tarreau
2009-05-16 10:39                                   ` Ingo Molnar
2009-05-16 12:02                                     ` Eric W. Biederman
2009-05-16 14:00                                       ` Michael S. Zick
2009-05-16 14:28                                         ` Michael S. Zick
2009-05-16 14:57                                           ` Arjan van de Ven
2009-05-16 15:09                                             ` Michael S. Zick [this message]
2009-05-16 14:32                                       ` Matt Mackall
2009-05-16 13:58                                     ` Willy Tarreau
2009-05-16 15:23                                       ` Linus Torvalds
2009-05-16 15:47                                         ` Willy Tarreau
2009-05-16 15:54                                         ` Oliver Neukum
2009-05-16 16:05                                           ` Linus Torvalds
2009-05-16 16:17                                             ` Linus Torvalds
2009-05-15  1:16                           ` Américo Wang
2009-05-06 20:25                       ` [Security] [PATCH] proc: avoid information leaks to non-privileged processes Ingo Molnar
2009-05-06 20:52                         ` Matt Mackall
2009-05-05  8:58           ` Andi Kleen

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