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From: Dave Jones <davej@codemonkey.org.uk>
To: "Theodore Y. Ts'o" <tytso@mit.edu>,
	Paul Menzel <pmenzel+linux-random-number@molgen.mpg.de>,
	linux-kernel@vger.kernel.org
Subject: Re: Linux messages full of `random: get_random_u32 called from`
Date: Sun, 29 Apr 2018 19:07:29 -0400	[thread overview]
Message-ID: <20180429230728.whjg3fpeunxuvkyn@codemonkey.org.uk> (raw)
In-Reply-To: <20180429230202.rcsjtnp2jhbqyag2@codemonkey.org.uk>

On Sun, Apr 29, 2018 at 07:02:02PM -0400, Dave Jones wrote:
 > On Tue, Apr 24, 2018 at 09:56:21AM -0400, Theodore Y. Ts'o wrote:
 > 
 >  > Can you tell me a bit about your system?  What distribution, what
 >  > hardware is present in your sytsem (what architecture, what
 >  > peripherals are attached, etc.)?
 >  > 
 >  > There's a reason why we made this --- we were declaring the random
 >  > number pool to be fully intialized before it really was, and that was
 >  > a potential security concern.  It's not as bad as the weakness
 >  > discovered by Nadia Heninger in 2012.  (See https://factorable.net for
 >  > more details.)  However, this is not one of those things where we like
 >  > to fool around.
 >  > 
 >  > So I want to understand if this is an issue with a particular hardware
 >  > configuration, or whether it's just a badly designed Linux init system
 >  > or embedded setup, or something else.  After all, you wouldn't want
 >  > the NSA spying on all of your network traffic, would you?  :-)
 > 
 > Why do we continue to print this stuff out when crng_init=1 though ?

answering my own question, I think.. This is a tristate, and we need it
to be >1 to be quiet, which doesn't happen until..

 > [  165.806247] random: crng init done

this point.

	Dave

  reply	other threads:[~2018-04-29 23:07 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-24 11:48 Paul Menzel
2018-04-24 13:56 ` Theodore Y. Ts'o
2018-04-24 14:30   ` Paul Menzel
2018-04-24 15:49   ` Theodore Y. Ts'o
2018-04-24 15:56     ` Paul Menzel
2018-04-25  7:41       ` Theodore Y. Ts'o
2018-04-26  3:48         ` Paul Menzel
2018-04-29 14:22           ` Pavel Machek
2018-04-29 23:02   ` Dave Jones
2018-04-29 23:07     ` Dave Jones [this message]
2018-04-30  0:21       ` Theodore Y. Ts'o
2018-04-26  5:51 ` Pavel Machek
2018-04-26  4:11 Sultan Alsawaf
2018-04-26  5:00 ` Theodore Y. Ts'o
2018-04-26  5:05   ` Sultan Alsawaf
2018-04-26  7:32     ` Theodore Y. Ts'o
2018-04-26 15:17       ` Sultan Alsawaf
2018-04-26 19:25         ` Theodore Y. Ts'o
2018-04-26 20:22           ` Sultan Alsawaf
2018-04-26 20:47             ` Christian Brauner
2018-04-27  0:00               ` Theodore Y. Ts'o
2018-04-27 15:38                 ` Jason A. Donenfeld
2018-04-27 19:14                   ` Theodore Y. Ts'o
2018-04-26 23:56             ` Theodore Y. Ts'o
2018-04-27  5:20               ` Sultan Alsawaf
2018-04-27 20:10                 ` Theodore Y. Ts'o
2018-04-27 22:59                   ` Sultan Alsawaf
2018-04-29 14:32                   ` Pavel Machek
2018-04-29 17:05                     ` Sultan Alsawaf
2018-04-29 18:41                       ` Pavel Machek
2018-04-29 20:20                         ` Sultan Alsawaf
2018-04-29 21:18                           ` Pavel Machek
2018-04-29 21:34                             ` Sultan Alsawaf
2018-04-29 22:05                           ` Theodore Y. Ts'o
2018-04-29 22:26                             ` Sultan Alsawaf
2018-04-29 22:43                               ` Jason A. Donenfeld
2018-04-29 22:49                                 ` Sultan Alsawaf
2018-04-30  0:11                                   ` Theodore Y. Ts'o
2018-04-30  4:34                                     ` Sultan Alsawaf
2018-04-30 16:11                                       ` Theodore Y. Ts'o
2018-05-01 19:53                                         ` Pavel Machek
2018-04-29 22:43                             ` Pavel Machek
2018-04-30  0:32                             ` Laura Abbott
2018-04-30 21:12                             ` Jeremy Cline
2018-05-01 11:52                               ` Justin Forbes
2018-05-01 12:55                                 ` Theodore Y. Ts'o
2018-05-01 22:35                                   ` Justin Forbes
2018-05-02  0:02                                     ` Theodore Y. Ts'o
2018-05-02 12:09                                       ` Justin Forbes
2018-05-02 16:26                                         ` Theodore Y. Ts'o
2018-05-02 17:49                                           ` Laura Abbott
2018-05-02 22:25                                             ` Theodore Y. Ts'o
2018-05-03  6:19                                               ` Pavel Machek
2018-05-03 12:23                                               ` Justin Forbes
2018-05-02  0:43                                     ` Sultan Alsawaf
2018-05-02  0:56                                       ` Theodore Y. Ts'o
2018-05-02  1:11                                         ` Sultan Alsawaf
2018-04-29 18:30                   ` Sultan Alsawaf
2018-04-29 20:08                     ` Theodore Y. Ts'o
2018-05-18  1:27                   ` Trent Piepho
2018-05-18  2:32                     ` Theodore Y. Ts'o
2018-05-18 22:56                       ` Trent Piepho
2018-05-18 23:22                         ` Theodore Y. Ts'o
2018-05-21 18:39                           ` Trent Piepho
2018-04-29 14:29               ` Pavel Machek

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