linux-kernel - Re: [PATCH 0/2] Add in-kernel /dev/random equivalent

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Date:	Fri, 6 Jun 2014 13:59:00 +0200
From:	Pavel Machek <pavel@....cz>
To:	Stephan Mueller <smueller@...onox.de>
Cc:	Theodore Ts'o <tytso@....edu>, LKML <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH 0/2] Add in-kernel /dev/random equivalent

On Mon 2014-05-12 00:36:01, Stephan Mueller wrote:
> Hi,
> 
> as discussed in thread [1], an in-kernel equivalent to the blocking 
> /dev/random device behavior is suggested. This in-kernel blocking access to 
> the RNG can be used to seed deterministic random number generators with random 
> numbers that are directly backed by the underlying noise sources.
> 
> The following patch implements this concept by adding a third output pool, the 
> kernel_pool that is only accessible inside the kernel. That kernel_pool feeds 
> the blocking operation API calls to obtain random numbers.
> 
> Please find a test kernel module attached. You can unload it even while the 
> collection process is ongoing.
> 
> [1] https://lkml.org/lkml/2014/4/27/174
> 
> Stephan Mueller (2):
>   Addition of kernel_pool
>   Asynchronous and syncronous API for accessing kernel_pool
> 
>  drivers/char/random.c  | 163 
> +++++++++++++++++++++++++++++++++++++++++++++----
>  include/linux/random.h |  16 +++++
>  2 files changed, 166 insertions(+), 13 deletions(-)

 * Copyright (c) 2014
 *
 * Permission is hereby granted, free of charge, to any person
 *obtaining a copy
 * of this software and associated documentation files (the
 *"Software"), to deal
 * in the Software without restriction, including without limitation
 *the rights
 * to use, copy, modify, merge, publish, distribute, sublicense,
 *and/or sell
 * copies of the Software, and to permit persons to whom the Software
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...but module_license says this is GPL...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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