From: Oliver Neukum <oliver@neukum.name>
To: Marco Colombo <marco@esi.it>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] (0/4) Entropy accounting fixes
Date: Mon, 19 Aug 2002 16:22:39 +0200 [thread overview]
Message-ID: <200208191622.39957.oliver@neukum.name> (raw)
In-Reply-To: <Pine.LNX.4.44.0208191248130.26653-100000@Megathlon.ESI>
> > 1. You create a problem for in kernel users of random numbers.
> > 2. You forgo the benefit of randomness by concurrent access to
> > /dev/urandom 3. You will not benefit from hardware random number
> > generators as easily.
>
> You lost me. The kernel of course has "client" access to the internal
> pool. And since the userspace reads from /dev/random, it benefits
The kernel users of random numbers may be unable to block.
Thus the kernel has to have a PRNG anyway.
You may as well export it.
> from HRNG just the same way it does now. Point 2 is somewhat obscure
> to me. The kernel has only one observer to deal with, in theory.
In theory. In practice what goes out through eg. the network is
most important. Additional accesses to a PRNG bitstream unknown
outside make it harder to predict the bitstream.
Regards
Oliver
next prev parent reply other threads:[~2002-08-19 14:19 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-18 2:15 Oliver Xymoron
2002-08-18 2:23 ` [PATCH] (1/4) " Oliver Xymoron
2002-08-18 2:26 ` [PATCH] (2/4) Update input drivers Oliver Xymoron
2002-08-18 2:29 ` [PATCH] (3/4) SA_RANDOM user fixup Oliver Xymoron
2002-08-18 2:32 ` [PATCH] (4/4) entropy batching update Oliver Xymoron
2002-08-18 2:30 ` [PATCH] (0/4) Entropy accounting fixes Linus Torvalds
2002-08-18 2:59 ` Oliver Xymoron
2002-08-18 3:08 ` Linus Torvalds
2002-08-18 3:25 ` Linus Torvalds
2002-08-18 4:42 ` Oliver Xymoron
2002-08-18 4:53 ` Linus Torvalds
2002-08-18 5:05 ` Dmitri
2002-08-18 6:18 ` Oliver Xymoron
2002-08-22 3:33 ` David Wagner
2002-08-18 10:30 ` Alan Cox
2002-08-18 15:08 ` Oliver Xymoron
2002-08-18 17:31 ` Jonathan Lundell
2002-08-22 3:27 ` David Wagner
2002-08-18 4:30 ` Oliver Xymoron
2002-08-21 8:44 ` Rogier Wolff
2002-08-21 12:47 ` Oliver Xymoron
2002-08-18 5:28 ` Andreas Dilger
2002-08-18 5:53 ` Oliver Xymoron
2002-08-22 3:25 ` David Wagner
2002-08-18 3:05 ` Linus Torvalds
2002-08-18 3:51 ` Robert Love
2002-08-18 4:01 ` Linus Torvalds
2002-08-18 5:38 ` Oliver Xymoron
2002-08-19 4:21 ` Theodore Ts'o
2002-08-19 10:15 ` Marco Colombo
2002-08-19 10:25 ` Oliver Neukum
2002-08-19 11:03 ` Marco Colombo
2002-08-19 14:22 ` Oliver Neukum [this message]
2002-08-19 15:21 ` Marco Colombo
2002-08-19 16:29 ` Oliver Neukum
2002-08-19 12:39 ` Oliver Xymoron
2002-08-18 6:31 ` Robert Love
2002-08-18 6:48 ` Oliver Xymoron
2002-08-18 4:06 ` dean gaudet
2002-08-18 4:44 ` Oliver Xymoron
2002-08-18 7:31 ` Bernd Eckenfels
2002-08-18 9:48 ` Ralf Baechle
2002-08-20 12:51 ` Bernd Eckenfels
2002-08-18 16:58 ` Robert Love
2002-08-18 10:25 ` Alan Cox
2002-08-19 10:47 ` Marco Colombo
2002-08-19 12:29 ` Alan Cox
2002-08-19 12:56 ` Marco Colombo
2002-09-08 3:43 ` D. Hugh Redelmeier
2002-09-08 18:03 ` David Wagner
2002-09-09 16:53 ` Oliver Xymoron
2002-09-09 16:58 ` David Wagner
2002-09-09 19:47 ` Oliver Xymoron
2002-09-09 23:22 ` David Wagner
2002-09-16 22:51 ` dean gaudet
2002-09-17 1:18 ` Oliver Xymoron
2002-09-09 18:54 ` Kent Borg
2002-09-09 19:57 ` Oliver Xymoron
2002-09-09 20:11 ` Kent Borg
2002-08-18 4:57 ` Oliver Xymoron
2002-08-18 4:28 ` Oliver Xymoron
2002-08-18 4:51 ` Linus Torvalds
2002-08-18 5:24 ` Oliver Xymoron
2002-08-18 16:59 ` Linus Torvalds
2001-11-02 10:34 ` Pavel Machek
2002-08-23 20:16 ` Linus Torvalds
2002-08-18 17:03 ` Robert Love
2002-08-18 17:31 ` Oliver Xymoron
2002-08-18 16:54 ` Robert Love
2002-08-18 17:18 ` Oliver Xymoron
2002-08-18 17:20 ` Robert Love
2002-08-19 5:43 ` Theodore Ts'o
2001-11-02 10:05 ` Pavel Machek
2002-08-19 6:06 ` *Challenge* Finding a solution (When kernel boots it does not display any system info) louie miranda
2002-08-19 7:30 ` Gilad Ben-Yossef
2002-08-19 7:30 ` Ryan Cumming
2002-08-20 0:55 ` louie miranda
2002-08-19 13:52 ` [PATCH] (0/4) Entropy accounting fixes Oliver Xymoron
2002-08-20 8:59 ` Tommi Kyntola
2002-08-20 13:21 ` Oliver Xymoron
2002-08-20 16:19 ` Tommi Kyntola
2002-08-20 17:22 ` Oliver Xymoron
2002-09-08 3:51 ` D. Hugh Redelmeier
2002-09-08 4:31 ` Oliver Xymoron
2002-08-18 4:57 David Brownell
2002-08-18 6:02 ` Oliver Xymoron
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