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From: Theodore Tso <tytso@mit.edu>
To: Matt Mackall <mpm@selenic.com>
Cc: Jon Masters <jonathan@jonmasters.org>,
	Mike McGrath <mmcgrath@redhat.com>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>, Ray Lee <ray@madrabbit.org>,
	Adrian Bunk <bunk@kernel.org>,
	Marc Haber <mh+linux-kernel@zugschlus.de>,
	linux-kernel@vger.kernel.org
Subject: Re: Why does reading from /dev/urandom deplete entropy so much?
Date: Sat, 8 Dec 2007 13:05:57 -0500	[thread overview]
Message-ID: <20071208180557.GL17037@thunk.org> (raw)
In-Reply-To: <20071208174343.GK19691@waste.org>

On Sat, Dec 08, 2007 at 11:43:43AM -0600, Matt Mackall wrote:
> > Huh?  What's the concern?  All you are submitting is a list of
> > hardware devices in your system.  That's hardly anything sensitive....
> 
> Using MAC addresses -does- de-anonymize things though and presumably
> anonymous collection is a stated goal.

True, but for many machines, the MAC address is enough for someone
knowledgeable to (at least) determine what the manufacturer of your
machine is, and in many cases, the model number of your laptop (since
MAC addresses are assigned sequentially) and thus people can have a
very good idea of the contents of your PCI tree ---- if for some
reason anyone would even care, of course!

					- Ted

  parent reply	other threads:[~2007-12-08 18:07 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-04 11:41 Why does reading from /dev/urandom deplete entropy so much? Marc Haber
2007-12-04 14:16 ` Eric Dumazet
2007-12-04 16:18 ` Adrian Bunk
2007-12-04 16:47   ` Alan Cox
2007-12-04 18:17     ` Eric Dumazet
2007-12-05 21:26       ` Matt Mackall
2007-12-06  7:02         ` Eric Dumazet
2007-12-06 16:09           ` Matt Mackall
2007-12-09 12:42         ` Marc Haber
2007-12-09 16:16           ` Matt Mackall
2007-12-10 23:06             ` Marc Haber
2007-12-10 23:35               ` Matt Mackall
2007-12-11  1:34                 ` Theodore Tso
2007-12-11 19:46                   ` Phillip Susi
2007-12-11 20:02                     ` Ray Lee
2007-12-12  5:34                     ` David Schwartz
2007-12-04 16:54   ` Ray Lee
2007-12-04 16:55     ` Alan Cox
2007-12-04 18:02       ` Matt Mackall
2007-12-04 19:50         ` Theodore Tso
2007-12-04 20:36           ` Matt Mackall
2007-12-04 20:40           ` Alan Cox
2007-12-04 20:48             ` Mike McGrath
2007-12-04 21:54               ` Matt Mackall
2007-12-04 22:03               ` Theodore Tso
2007-12-04 22:12                 ` Mike McGrath
2007-12-04 22:28                   ` Matt Mackall
2007-12-04 21:08             ` Matt Mackall
2007-12-04 21:18               ` Mike McGrath
2007-12-04 22:15                 ` Matt Mackall
2007-12-04 22:23                   ` Mike McGrath
2007-12-04 22:33                     ` Matt Mackall
2007-12-05 14:26                       ` Mike McGrath
2007-12-05 14:49                         ` Theodore Tso
2007-12-08  7:38                           ` Jon Masters
2007-12-08 17:32                             ` Theodore Tso
2007-12-08 17:33                               ` Mike McGrath
2007-12-08 17:49                                 ` Theodore Tso
2007-12-08 17:54                                   ` Jon Masters
2007-12-08 18:15                                   ` Matt Mackall
2007-12-08 18:24                                     ` Theodore Tso
2007-12-08 19:36                                     ` entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?) Jeff Garzik
2007-12-08 19:53                                       ` Matt Mackall
2007-12-08 20:04                                         ` Jeff Garzik
2007-12-08 20:19                                           ` Matt Mackall
2007-12-08 21:07                                             ` Willy Tarreau
2007-12-08 20:31                                           ` Theodore Tso
2007-12-08 20:47                                             ` Jeff Garzik
2007-12-08 20:42                                       ` Willy Tarreau
2007-12-08 23:47                                         ` Theodore Tso
2007-12-09  1:07                                           ` Jon Masters
2007-12-08 18:31                                   ` Why does reading from /dev/urandom deplete entropy so much? Jeff Garzik
2007-12-08 20:26                                     ` David Schwartz
2007-12-08 17:43                               ` Matt Mackall
2007-12-08 17:47                                 ` Jon Masters
2007-12-08 18:05                                 ` Theodore Tso [this message]
2007-12-08 17:45                               ` Jon Masters
2007-12-10 16:37                           ` Pavel Machek
2007-12-04 18:01     ` Matt Mackall
2007-12-06 20:08       ` Bill Davidsen
2007-12-05 12:23     ` Marc Haber
2007-12-05 12:29   ` Marc Haber
2007-12-05 13:33     ` Theodore Tso
2007-12-05 15:10       ` Marc Haber
2007-12-06 19:32   ` Bill Davidsen
2007-12-08 22:03     ` Adrian Bunk
2007-12-08 22:10       ` Ismail Dönmez
2007-12-08 23:46         ` Theodore Tso
2007-12-09  5:21           ` Willy Tarreau
2007-12-09  6:52             ` Jon Masters
2007-12-09  6:21           ` Ismail Dönmez
2007-12-09 12:31             ` Theodore Tso
2007-12-09 14:06               ` Ismail Dönmez
2007-12-11 15:42       ` Bill Davidsen
2007-12-20 22:27         ` Marc Haber
2007-12-26 18:27           ` Phillip Susi
2007-12-04 18:49 ` Russ Dill

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