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From: Vivek Goyal <vgoyal@redhat.com>
To: "Kasatkin, Dmitry" <dmitry.kasatkin@intel.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Mimi Zohar <zohar@linux.vnet.ibm.com>
Subject: Re: [RFC 2/2] initramfs with digital signature protection
Date: Fri, 5 Apr 2013 09:50:00 -0400	[thread overview]
Message-ID: <20130405135000.GB6299@redhat.com> (raw)
In-Reply-To: <CALLzPKavbsZgHoJrk5iQ0F1fO21SaeEHmCVCh1G1UKCKB3WZZQ@mail.gmail.com>

On Tue, Feb 05, 2013 at 11:55:09PM +0200, Kasatkin, Dmitry wrote:

[..]
> > Also I am assuming that from signed initramfs, keys will be loaded in
> > appropriate keyrings and then keyring will be locked so that any
> > tools from unsigned initramfs can not load additional keys.
> >
> 
> Exactly like that.

Dmitry,

[ Following up on this thread after a very long time ]

I was thinking about this point that keys can be loaded from signed
initramfs. But how is it better than embedding the keys in kernel the
way we do for module signing and lock down ima keyring before control
is passed to initramfs.

Reason being, that anyway a user can not put its own keys in signed
initramfs. Signed initramfs will be shipped by distribution. So then
it does not matter whether distribution's keys are embedded in the
kernel or are loaded from signed initramfs.

Thanks
Vivek

  reply	other threads:[~2013-04-05 13:50 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-05 12:34 [RFC 0/2] initramfs with digital signature protection Dmitry Kasatkin
2013-02-05 12:34 ` [RFC 1/2] export unpack_to_rootfs Dmitry Kasatkin
2013-02-05 16:48   ` Peter Jones
2013-02-05 17:16     ` Kasatkin, Dmitry
2013-02-08  8:30       ` Kasatkin, Dmitry
2013-02-05 12:34 ` [RFC 2/2] initramfs with digital signature protection Dmitry Kasatkin
2013-02-05 18:03   ` Peter Jones
2013-02-05 20:08     ` Mimi Zohar
2013-02-05 22:03     ` Kasatkin, Dmitry
2013-02-05 18:19   ` Matthew Garrett
2013-02-05 18:30     ` Matthew Garrett
2013-02-05 18:34     ` Vivek Goyal
2013-02-05 21:55       ` Kasatkin, Dmitry
2013-04-05 13:50         ` Vivek Goyal [this message]
2013-04-08 19:43           ` Mimi Zohar
2013-04-08 20:09             ` Vivek Goyal
2013-04-08 20:17               ` Josh Boyer
2013-04-09 14:38                 ` Vivek Goyal
2013-04-10  3:07                   ` Mimi Zohar
2013-04-10 19:42                     ` Vivek Goyal
2013-04-10 21:05                       ` Mimi Zohar
2013-04-11  8:08                         ` Dmitry Kasatkin
2013-04-11 14:52                         ` Vivek Goyal
2013-04-12 11:54                           ` Mimi Zohar
     [not found]                         ` <CACE9dm-GZpjco8u6jNxLQpYA8LYSeoVjsyyRXVwxXHzjO-LvGw@mail.gmail.com>
2013-04-11 14:55                           ` Vivek Goyal
2013-04-11 18:42                             ` Dmitry Kasatkin
2013-04-11 21:13                               ` Vivek Goyal
2013-04-12 12:03                                 ` Mimi Zohar
2013-02-05 20:36   ` Peter Jones
2013-02-05 22:09     ` Kasatkin, Dmitry
2013-02-06  5:04       ` H. Peter Anvin
2013-02-06  8:01         ` Kasatkin, Dmitry
2013-02-06 16:41           ` H. Peter Anvin
2013-02-08  9:16             ` Kasatkin, Dmitry
2013-02-08 15:49               ` H. Peter Anvin
2013-02-08 16:24                 ` Kasatkin, Dmitry
2013-02-08 16:50                   ` H. Peter Anvin
2013-02-07 17:05   ` Vivek Goyal
2013-02-08  8:34     ` Kasatkin, Dmitry
2013-02-08 13:27       ` Kasatkin, Dmitry
2013-02-11 21:59         ` Vivek Goyal

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