From: Petko Manolov <petkan@mip-labs.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Seth Forshee <seth.forshee@canonical.com>,
"Luis R. Rodriguez" <mcgrof@suse.com>,
linux-security-module@vger.kernel.org, james.l.morris@oracle.com,
serge@hallyn.com, linux-kernel@vger.kernel.org,
linux-wireless@vger.kernel.org,
David Howells <dhowells@redhat.com>,
Kyle McMartin <kyle@kernel.org>,
David Woodhouse <david.woodhouse@intel.com>,
Joey Lee <jlee@suse.de>, Rusty Russell <rusty@rustcorp.com.au>,
zohar@linux.vnet.ibm.com, mricon@kernel.org
Subject: Re: [RFD] linux-firmware key arrangement for firmware signing
Date: Thu, 21 May 2015 17:45:52 +0300 [thread overview]
Message-ID: <20150521144552.GD18164@localhost> (raw)
In-Reply-To: <20150521061453.GC30864@kroah.com>
On 15-05-20 23:14:53, Greg Kroah-Hartman wrote:
>
> Ok, but how do we know "where"? Who is going to start signing and attesting
> to the validity of all of the firmware images in the linux-firmware tree
> suddenly? Why is it the kernel's job to attest this "where"? Shouldn't your
> distro/manufacturer be doing that as part of their "put this file on this
> disk" responsibilities (i.e. the package manager?)
I did not say the kernel should care about signatures. This is entirely user's
choice. You care about authenticity, you require signature and verify it
against "known good" certificate. s/you/distro/
I'm just saying that it would be nice to have this feature in case somebody need
it. Luckily IMA has this functionality, although you'll have to work hard to
get to use it. :)
> What is verifying a firmware image signature in the kernel attesting that
> isn't already known in userspace?
The kernel is a lot better place to keep certificates and keys safe, compared to
userland.
Petko
next prev parent reply other threads:[~2015-05-21 14:46 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-19 20:02 [RFD] linux-firmware key arrangement for firmware signing Luis R. Rodriguez
2015-05-19 20:40 ` Luis R. Rodriguez
2015-05-19 20:59 ` Andy Lutomirski
2015-05-19 22:11 ` Luis R. Rodriguez
2015-05-19 22:40 ` Andy Lutomirski
2015-05-21 15:51 ` David Howells
2015-05-21 16:30 ` Mimi Zohar
2015-05-21 16:39 ` Andy Lutomirski
2015-05-21 16:51 ` Petko Manolov
2015-05-21 16:55 ` Andy Lutomirski
2015-05-21 17:44 ` Petko Manolov
2015-05-21 16:43 ` Petko Manolov
2015-05-21 16:48 ` Andy Lutomirski
2015-05-21 16:58 ` Petko Manolov
2015-05-21 16:59 ` Mimi Zohar
2015-05-19 23:30 ` Julian Calaby
2015-05-19 23:42 ` Andy Lutomirski
2015-05-20 0:39 ` Luis R. Rodriguez
2015-05-20 0:41 ` Andy Lutomirski
2015-05-21 22:26 ` Luis R. Rodriguez
2015-05-21 23:15 ` Casey Schaufler
2015-05-19 21:48 ` Mimi Zohar
2015-05-19 22:19 ` Luis R. Rodriguez
2015-05-19 23:37 ` Mimi Zohar
2015-05-20 0:22 ` Luis R. Rodriguez
2015-05-20 1:06 ` Mimi Zohar
2015-05-20 1:29 ` Andy Lutomirski
2015-05-20 2:05 ` Mimi Zohar
2015-05-20 2:10 ` Andy Lutomirski
2015-05-20 15:49 ` Petko Manolov
2015-05-20 16:08 ` Petko Manolov
2015-05-20 14:04 ` Seth Forshee
2015-05-20 15:08 ` David Howells
2015-05-20 15:47 ` Seth Forshee
2015-05-21 16:23 ` David Howells
2015-05-20 16:24 ` One Thousand Gnomes
2015-05-20 16:46 ` Petko Manolov
2015-05-21 4:41 ` Greg Kroah-Hartman
2015-05-21 5:41 ` Petko Manolov
2015-05-21 6:14 ` Greg Kroah-Hartman
2015-05-21 13:05 ` Mimi Zohar
2015-05-21 15:45 ` Greg Kroah-Hartman
2015-05-21 15:53 ` Petko Manolov
2015-05-21 16:57 ` Greg Kroah-Hartman
2015-05-26 17:08 ` One Thousand Gnomes
2015-05-26 19:15 ` Petko Manolov
2015-05-26 19:52 ` Mimi Zohar
2015-05-26 23:06 ` David Howells
2015-05-21 16:03 ` Woodhouse, David
2015-05-21 16:22 ` Mimi Zohar
2015-05-21 16:31 ` Woodhouse, David
2015-05-21 17:02 ` gregkh
2015-05-21 17:14 ` Petko Manolov
2015-05-21 18:23 ` Luis R. Rodriguez
2015-05-21 18:30 ` Luis R. Rodriguez
2015-05-21 19:32 ` Woodhouse, David
2015-05-21 17:49 ` Luis R. Rodriguez
2015-05-21 14:45 ` Petko Manolov [this message]
2015-05-21 22:50 ` Luis R. Rodriguez
2015-05-20 20:35 ` Kyle McMartin
2015-05-20 15:14 ` David Howells
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