From: Greg KH <gregkh@suse.de>
To: Valdis.Kletnieks@vt.edu
Cc: Krzysztof Halasa <khc@pm.waw.pl>,
Jon Masters <jonathan@jonmasters.org>,
Adrian Bunk <bunk@stusta.de>,
"Frank Ch. Eigler" <fche@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: kernel.org status: establishing a PGP web of trust
Date: Fri, 7 Oct 2011 09:59:11 -0700 [thread overview]
Message-ID: <20111007165911.GA2022@suse.de> (raw)
In-Reply-To: <15324.1318004954@turing-police.cc.vt.edu>
On Fri, Oct 07, 2011 at 12:29:14PM -0400, Valdis.Kletnieks@vt.edu wrote:
> On Fri, 07 Oct 2011 00:16:01 +0200, Krzysztof Halasa said:
>
> > > Wouldn't the fact that I attend the keysigning party and claim that I was
> > > the owner of key B4D3D7B0, and then subsequently signing your key with
> > > that same key, prove that I actually controlled key B4D3D7B0?
> >
> > I don't think it's needed. Alice claims ownership of key B4D3D7B0, gets
> > signatures on B4D3D7B0 public key. Bob (who actually controls B4D3D7B0)
> > reads Alice's mail and signs something "in Alice's name". Alice loses.
>
> You got that 180 degrees out of phase. Jon said he wanted a keysigning party
> where I would prove that I own key B4D3D7B0 (which is, in fact, my key) by
> signing something random. My claim is that if I can take Jon's key and sign it
> with B4D3D7B0, that's already proving I control the key, and another signing
> of something else doesn't prove anything regarding my control of the key.
>
> Now mind you, it *does* have its uses - for example, "sign the random string
> I just e-mailed you" will verify that I have control of the e-mail address that the
> key claims to be attached to. But that's different from proving I have control
> of the actual key.
If you are worried about this type of thing, then just use the tool
'caff' when signing keys, it handles all of this type of thing
automatically as well as making it very easy to sign keys. I just found
it a few days ago and it's already saved me tons of time.
greg k-h
next prev parent reply other threads:[~2011-10-07 17:18 UTC|newest]
Thread overview: 188+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-30 23:50 kernel.org status: establishing a PGP web of trust H. Peter Anvin
2011-09-30 23:59 ` kernel.org status: hints on how to check your machine for intrusion Greg KH
2011-10-01 1:15 ` David Miller
2011-10-01 4:54 ` Greg KH
2011-10-01 7:35 ` Willy Tarreau
2011-10-01 14:07 ` Greg KH
2011-10-01 18:06 ` Steven Rostedt
2011-10-01 18:13 ` David Miller
2011-10-01 18:29 ` Steven Rostedt
2011-10-01 18:34 ` Willy Tarreau
2011-10-01 21:23 ` Henrique de Moraes Holschuh
2011-10-01 21:30 ` Henrique de Moraes Holschuh
2011-10-03 9:28 ` Maarten Lankhorst
2011-10-01 18:40 ` Steven Rostedt
2011-10-01 18:45 ` Steven Rostedt
2011-10-03 9:47 ` gmack
2011-10-01 22:06 ` Frank A. Kingswood
2011-10-03 9:49 ` gmack
2011-10-01 14:17 ` akwatts
2011-10-01 14:28 ` Greg KH
2011-10-01 16:29 ` Andy
2011-10-01 16:56 ` Willy Tarreau
2011-10-01 17:19 ` Andy
2011-10-01 17:54 ` Andreas Schwab
2011-10-01 22:32 ` H. Peter Anvin
2011-10-01 17:54 ` Willy Tarreau
2011-10-01 18:40 ` Andy
2011-10-01 19:06 ` Willy Tarreau
2011-10-01 19:24 ` Greg KH
2011-10-01 20:07 ` Willy Tarreau
2011-10-01 20:29 ` Andreas Schwab
2011-10-01 20:32 ` Willy Tarreau
2011-10-01 20:24 ` Andy
2011-10-01 22:43 ` Willy Tarreau
2011-10-02 0:10 ` H. Peter Anvin
2011-10-02 5:35 ` Willy Tarreau
2011-10-02 1:58 ` tmhikaru
2011-10-02 2:26 ` Greg KH
2011-10-02 3:30 ` Andy
2011-10-02 4:39 ` Greg KH
2011-10-02 6:59 ` Willy Tarreau
2011-10-02 12:03 ` Andy
2011-10-02 18:27 ` Willy Tarreau
2011-10-11 1:16 ` Andrew Watts
2011-10-02 3:31 ` tmhikaru
2011-10-07 9:28 ` Andrea Arcangeli
2011-10-13 2:34 ` Re " Matthew W.S. Bell
2011-10-13 10:59 ` Matthew W.S. Bell
2011-10-18 15:13 ` Jean Delvare
2011-10-18 15:21 ` Greg KH
2011-10-18 16:08 ` Jean Delvare
2011-10-01 14:05 ` kernel.org status: establishing a PGP web of trust Greg KH
2011-10-01 22:07 ` Rafael J. Wysocki
2011-10-01 22:26 ` Greg KH
2011-10-02 23:02 ` Nobuhiro Iwamatsu
2011-10-02 23:09 ` Greg KH
2011-10-03 9:14 ` Steven Rostedt
2011-10-03 14:13 ` Greg KH
2011-10-03 15:09 ` Steven Rostedt
2011-10-01 21:33 ` Rafael J. Wysocki
2011-10-01 22:27 ` H. Peter Anvin
2011-10-01 22:36 ` Randy Dunlap
2011-10-01 22:52 ` Ted Ts'o
2011-10-02 1:04 ` Rafael J. Wysocki
2011-10-02 1:04 ` H. Peter Anvin
2011-10-02 11:54 ` Rafael J. Wysocki
2011-10-02 17:53 ` H. Peter Anvin
2011-10-02 18:14 ` Rafael J. Wysocki
2011-10-02 18:19 ` H. Peter Anvin
2011-10-02 18:39 ` Willy Tarreau
2011-10-02 19:02 ` H. Peter Anvin
2011-10-02 19:24 ` Willy Tarreau
2011-10-02 19:29 ` Rafael J. Wysocki
2011-10-02 18:24 ` Henrique de Moraes Holschuh
2011-10-02 18:31 ` H. Peter Anvin
2011-10-02 19:31 ` Rafael J. Wysocki
2011-10-02 20:42 ` Henrique de Moraes Holschuh
2011-10-03 9:32 ` Adrian Bunk
2011-10-03 16:28 ` Frank Ch. Eigler
2011-10-03 18:04 ` Adrian Bunk
2011-10-04 20:29 ` Valdis.Kletnieks
2011-10-04 22:39 ` Adrian Bunk
2011-10-04 23:17 ` Frank Ch. Eigler
2011-10-05 4:37 ` Valdis.Kletnieks
2011-10-05 7:54 ` Adrian Bunk
2011-10-05 17:06 ` Ted Ts'o
2011-10-05 19:23 ` Adrian Bunk
2011-10-05 19:50 ` Adrian Bunk
2011-10-05 20:09 ` Greg KH
2011-10-05 21:25 ` Adrian Bunk
2011-10-05 23:47 ` Ted Ts'o
2011-10-06 7:16 ` Adrian Bunk
2011-10-05 23:57 ` Thomas Gleixner
2011-10-06 0:07 ` Jeremy Fitzhardinge
2011-10-06 0:18 ` Chris Friesen
2011-10-06 7:30 ` Thomas Gleixner
2011-10-06 17:19 ` Valdis.Kletnieks
2011-10-06 8:04 ` Adrian Bunk
2011-10-06 10:22 ` Thomas Gleixner
2011-10-06 11:10 ` Adrian Bunk
2011-10-06 11:05 ` Josh Boyer
2011-10-06 11:19 ` Adrian Bunk
2011-10-05 4:23 ` Valdis.Kletnieks
2011-10-05 20:00 ` Arnaud Lacombe
2011-10-05 20:19 ` Adrian Bunk
2011-10-05 20:36 ` Arnaud Lacombe
2011-10-05 23:55 ` Greg KH
2011-10-06 0:23 ` Arnaud Lacombe
2011-10-06 0:50 ` Arnaud Lacombe
2011-10-06 5:25 ` Greg KH
2011-10-06 13:44 ` Valdis.Kletnieks
2011-10-06 14:43 ` Arnaud Lacombe
2011-10-06 10:05 ` Alan Cox
2011-10-06 17:05 ` Krzysztof Halasa
2011-10-06 15:58 ` Jon Masters
2011-10-06 17:39 ` Mark Brown
2011-10-06 17:45 ` Krzysztof Halasa
2011-10-06 17:52 ` Mark Brown
2011-10-06 17:48 ` Greg KH
2011-10-06 18:08 ` H. Peter Anvin
2011-10-06 18:14 ` H. Peter Anvin
2011-10-06 19:50 ` Valdis.Kletnieks
2011-10-06 22:16 ` Krzysztof Halasa
2011-10-07 16:29 ` Valdis.Kletnieks
2011-10-07 16:59 ` Greg KH [this message]
2011-10-07 16:59 ` Arnaud Lacombe
2011-10-07 18:22 ` Valdis.Kletnieks
2011-10-08 5:02 ` Jon Masters
2011-10-08 14:36 ` Valdis.Kletnieks
2011-10-08 15:28 ` Geert Uytterhoeven
2011-10-08 15:48 ` Krzysztof Halasa
2011-10-08 17:59 ` Jon Masters
2011-10-08 21:06 ` Krzysztof Halasa
2011-10-08 21:09 ` H. Peter Anvin
2011-10-09 3:01 ` Jon Masters
2011-10-08 15:44 ` Krzysztof Halasa
2011-10-08 15:16 ` Krzysztof Halasa
2011-10-05 19:43 ` Arnaud Lacombe
2011-10-02 18:36 ` Randy Dunlap
2011-10-02 22:46 ` Valdis.Kletnieks
2011-10-02 23:16 ` Josh Boyer
2011-10-03 0:24 ` H. Peter Anvin
2011-10-02 22:54 ` Guenter Roeck
2011-10-02 22:58 ` H. Peter Anvin
2011-10-02 23:23 ` Olof Johansson
2011-10-02 23:27 ` H. Peter Anvin
2011-10-03 0:44 ` Jeremy Fitzhardinge
2011-10-03 1:00 ` Dmitry Torokhov
2011-10-03 1:00 ` Guenter Roeck
2011-10-03 1:09 ` Ted Ts'o
2011-10-03 1:21 ` Jeremy Fitzhardinge
2011-10-03 1:22 ` H. Peter Anvin
2011-10-03 1:42 ` Andrew Morton
2011-10-03 1:43 ` H. Peter Anvin
2011-10-03 3:15 ` Geoff Levand
2011-10-03 3:29 ` Ted Ts'o
2011-10-03 3:38 ` Dmitry Torokhov
2011-10-03 3:54 ` Ted Ts'o
2011-10-03 4:02 ` Andrew Morton
2011-10-03 4:33 ` Ted Ts'o
2011-10-03 0:43 ` Lee Mathers
2011-10-03 9:53 ` Jonathan Cameron
2011-10-04 22:34 ` Ralf Baechle
2011-10-05 19:12 ` Maciej W. Rozycki
2011-10-06 13:27 ` Cambridge, UK key signing meeting. Thursday 13th Oct Jonathan Cameron
2011-10-11 16:33 ` Jonathan Cameron
2011-10-02 18:20 ` kernel.org status: establishing a PGP web of trust Henrique de Moraes Holschuh
2011-10-03 1:18 ` Ben Pfaff
2011-10-03 1:49 ` H. Peter Anvin
2011-10-03 11:19 ` Jiri Kosina
2011-10-03 22:56 ` Josh Triplett
2011-10-04 4:49 ` Ted Ts'o
2011-10-04 4:52 ` H. Peter Anvin
2011-10-04 5:11 ` Ted Ts'o
2011-10-04 16:37 ` H. Peter Anvin
2011-10-04 7:15 ` Jiri Kosina
2011-10-04 19:23 ` Rafael J. Wysocki
2011-10-06 3:14 ` John Johansen
2011-10-06 4:49 ` hpanvin@gmail.com
2011-10-04 12:51 ` Heiko Carstens
2011-10-04 22:02 ` Jiri Kosina
2011-10-04 22:04 ` H. Peter Anvin
2011-10-05 0:27 ` Henrique de Moraes Holschuh
2011-10-03 17:50 ` Adrian Bunk
2011-10-06 18:22 ` Krzysztof Halasa
2011-10-06 18:31 ` Rafael J. Wysocki
2011-10-06 21:19 ` [Warsaw Poland] " Krzysztof Halasa
2011-10-06 21:37 ` Rafael J. Wysocki
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