From: David Howells <dhowells@redhat.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
Luis Rodriguez <mcgrof@gmail.com>,
"ksummit-discuss@lists.linuxfoundation.org"
<ksummit-discuss@lists.linuxfoundation.org>,
Kyle McMartin <jkkm@jkkm.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Firmware signing
Date: Tue, 28 Jul 2015 17:44:39 +0100 [thread overview]
Message-ID: <30361.1438101879@warthog.procyon.org.uk> (raw)
In-Reply-To: <CALCETrWwMrd-ntkjiYf0-E+YjeVfM-sT7W_PFXr-mOPc268Vbw@mail.gmail.com>
Andy Lutomirski <luto@amacapital.net> wrote:
> I'd really like to replace "the system trusted keyring" with
> purpose-specific lists of keys. There are keys we trust to sign
> modules, there are keys we trust to sign kexec things, there will be
> keys to trust to sign firmware for any device, etc.
I have some patches to restrict what a key is permitted to do - see the top
few patches here:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=fwsign-pkcs7
This involves marking the X.509 certs with the intended use case (or relying
on the existing CA stuff for key-signing keys).
I do put all the keys into one keyring on the basis that each key will be used
once and won't be added multiple times through separate X.509 certs that give
different usage restrictions for the same key. Given this, having just one
keyring works fine.
David
next prev parent reply other threads:[~2015-07-28 16:44 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-28 13:36 David Howells
2015-07-28 14:23 ` David Woodhouse
2015-07-28 16:55 ` Luis R. Rodriguez
2015-07-28 15:10 ` James Bottomley
2015-07-28 15:22 ` Andy Lutomirski
2015-07-28 15:31 ` James Bottomley
2015-07-28 16:05 ` Andy Lutomirski
2015-07-28 16:10 ` James Bottomley
2015-07-28 16:15 ` David Woodhouse
2015-07-28 16:35 ` Andy Lutomirski
2015-07-28 16:44 ` David Howells [this message]
2015-07-28 17:03 ` Andy Lutomirski
2015-07-28 19:19 ` David Woodhouse
2015-07-28 19:31 ` Andy Lutomirski
2015-07-28 19:43 ` David Woodhouse
2015-07-28 22:03 ` James Bottomley
2015-08-11 20:24 ` David Howells
2015-08-11 21:56 ` Andy Lutomirski
2015-08-11 22:03 ` Luis R. Rodriguez
2015-08-12 18:22 ` David Howells
2015-08-12 18:45 ` David Woodhouse
2015-08-12 19:09 ` Andy Lutomirski
2015-08-12 19:15 ` James Bottomley
2015-08-12 19:25 ` Andy Lutomirski
2015-08-12 19:43 ` James Bottomley
2015-08-12 19:45 ` Andy Lutomirski
2015-08-12 19:59 ` James Bottomley
2015-08-13 7:03 ` Jan Kara
2015-08-13 14:01 ` James Bottomley
2015-08-12 22:46 ` David Howells
2015-08-12 22:51 ` Andy Lutomirski
2015-08-12 19:06 ` Andy Lutomirski
2015-08-12 22:39 ` David Howells
2015-08-12 22:45 ` Andy Lutomirski
2015-08-12 22:45 ` David Howells
2015-08-12 22:47 ` Andy Lutomirski
2015-07-28 16:18 ` David Howells
2015-07-28 16:42 ` James Bottomley
2015-07-28 17:05 ` Andy Lutomirski
2015-07-28 17:09 ` James Bottomley
2015-07-28 17:10 ` Andy Lutomirski
2015-07-29 2:00 ` James Morris
2015-07-28 16:58 ` Josh Boyer
2015-07-28 15:12 ` David Woodhouse
2015-07-28 18:47 ` Peter Jones
2015-07-28 19:14 ` David Howells
2015-07-28 19:52 ` Peter Jones
2015-07-28 16:17 ` David Howells
2015-07-28 16:59 ` James Bottomley
2015-07-28 19:11 ` David Howells
2015-07-28 19:34 ` Luis R. Rodriguez
2015-07-28 21:53 ` James Bottomley
2015-07-28 22:39 ` David Howells
2015-07-28 22:44 ` Andy Lutomirski
2015-07-29 8:39 ` David Woodhouse
2015-07-28 18:36 ` josh
2015-07-28 18:44 ` James Bottomley
2015-07-28 18:54 ` josh
2015-07-28 19:06 ` Luis R. Rodriguez
2015-07-28 21:38 ` Greg KH
2015-07-28 23:59 ` josh
2015-07-29 0:17 ` Greg KH
2015-07-29 9:37 ` David Woodhouse
2015-07-29 15:00 ` James Bottomley
2015-07-29 15:35 ` David Woodhouse
2015-07-29 16:38 ` James Bottomley
2015-07-29 17:32 ` David Woodhouse
2015-07-29 23:39 ` James Bottomley
2015-07-30 8:08 ` David Woodhouse
2015-07-30 13:48 ` James Bottomley
2015-07-30 14:21 ` Heiko Stübner
2015-07-30 14:30 ` James Bottomley
2015-07-30 15:01 ` David Woodhouse
2015-07-30 16:17 ` James Bottomley
2015-07-30 19:17 ` David Woodhouse
2015-07-31 14:41 ` Theodore Ts'o
2015-07-31 16:14 ` Tim Bird
2015-07-31 17:25 ` David Woodhouse
2015-07-30 16:24 ` Tim Bird
2015-07-29 16:35 ` Josh Triplett
2015-07-29 8:29 ` David Woodhouse
2015-07-29 11:57 ` Mark Brown
2015-07-29 12:02 ` David Woodhouse
2015-07-29 12:24 ` Mark Brown
2015-07-28 19:23 ` David Woodhouse
2015-07-28 19:19 ` David Howells
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