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From: Pavel Machek <pavel@ucw.cz>
To: joeyli <jlee@suse.com>
Cc: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>,
	linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
	linux-pm@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Matthew Garrett <matthew.garrett@nebula.com>,
	Len Brown <len.brown@intel.com>, Josh Boyer <jwboyer@redhat.com>,
	Vojtech Pavlik <vojtech@suse.cz>,
	Matt Fleming <matt.fleming@intel.com>,
	Jiri Kosina <jkosina@suse.cz>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [RFC PATCH 01/16] PM / hibernate: define HMAC algorithm and digest size of swsusp
Date: Fri, 31 Jul 2015 14:49:36 +0200	[thread overview]
Message-ID: <20150731124936.GA5728@amd> (raw)
In-Reply-To: <20150731100812.GD13113@linux-rxt1.site>

On Fri 2015-07-31 18:08:12, joeyli wrote:
> On Tue, Jul 28, 2015 at 02:01:56PM +0200, Pavel Machek wrote:
> > On Thu 2015-07-16 22:25:15, Lee, Chun-Yi wrote:
> > > Using HMAC-SHA1 to be the HMAC algorithm of signing hibernate
> > > snapshot image. The digest size of HMAC-SHA1 is 160 bits (20 bytes),
> > > this size will be also applied to the length of HMAC key.
> > > 
> > > In addition, add HIBERNATE_VERIFICATION kernel config.
> > > 
> > > Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
> > > ---
> > >  include/linux/suspend.h |  5 +++++
> > >  kernel/power/Kconfig    | 13 +++++++++++++
> > >  kernel/power/power.h    |  1 +
> > >  3 files changed, 19 insertions(+)
> > > 
> > > diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> > > index 5efe743..6cd2a48 100644
> > > --- a/include/linux/suspend.h
> > > +++ b/include/linux/suspend.h
> > > @@ -327,6 +327,11 @@ struct platform_hibernation_ops {
> > >  };
> > >  
> > >  #ifdef CONFIG_HIBERNATION
> > > +
> > > +/* HMAC Algorithm of Hibernate Signature */
> > > +#define SWSUSP_HMAC		"hmac(sha1)"
> > > +#define SWSUSP_DIGEST_SIZE	20
> > 
> > I'd replace SWSUSP with HIBERNATION here, and pretty much everywhere.
> >
> 
> SWSUSP is shorter than HIBERNATION, and there have some codes in hibernate
> are also using swsusp. I still want to use it.

Yes, its shorter, but its old name we are trying to move away
from. Please do the same.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2015-07-31 12:49 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-16 14:25 [RFC PATCH 00/16] Signature verification of hibernate snapshot Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 01/16] PM / hibernate: define HMAC algorithm and digest size of swsusp Lee, Chun-Yi
2015-07-28 12:01   ` Pavel Machek
2015-07-31 10:08     ` joeyli
2015-07-31 12:49       ` Pavel Machek [this message]
2015-07-31 15:46         ` joeyli
2015-07-16 14:25 ` [RFC PATCH 02/16] x86/efi: Add get and set variable to EFI services pointer table Lee, Chun-Yi
2015-07-30 15:19   ` Matt Fleming
2015-07-31 10:14     ` joeyli
2015-07-16 14:25 ` [RFC PATCH 03/16] x86/boot: Public getting random boot function Lee, Chun-Yi
2015-07-28 12:21   ` Pavel Machek
2015-07-31 10:52     ` joeyli
2015-07-31 12:50       ` Pavel Machek
2015-07-16 14:25 ` [RFC PATCH 04/16] x86/efi: Generating random number in EFI stub Lee, Chun-Yi
2015-07-28 12:01   ` Pavel Machek
2015-07-31  9:06     ` joeyli
2015-07-30 15:37   ` Matt Fleming
2015-07-31  9:12     ` joeyli
2015-07-16 14:25 ` [RFC PATCH 05/16] x86/efi: Get entropy through EFI random number generator protocol Lee, Chun-Yi
2015-07-28 12:28   ` Pavel Machek
2015-07-31  9:58     ` joeyli
2015-07-31 12:01       ` Matt Fleming
2015-07-31 16:05         ` joeyli
2015-07-30 16:11   ` Matt Fleming
2015-07-31 14:59     ` joeyli
2015-07-31 15:01       ` joeyli
2015-07-16 14:25 ` [RFC PATCH 06/16] x86/efi: Generating random HMAC key for siging hibernate image Lee, Chun-Yi
2015-07-28 12:30   ` Pavel Machek
2015-07-31 10:56     ` joeyli
2015-07-30 16:20   ` Matt Fleming
2015-07-31 15:09     ` joeyli
2015-07-16 14:25 ` [RFC PATCH 07/16] efi: Public the function of transferring EFI status to kernel error Lee, Chun-Yi
2015-07-30 16:23   ` Matt Fleming
2015-07-31 15:11     ` joeyli
2015-08-02  0:23     ` Valdis.Kletnieks
2015-07-16 14:25 ` [RFC PATCH 08/16] x86/efi: Carrying swsusp key by setup data Lee, Chun-Yi
2015-07-30 16:30   ` Matt Fleming
2015-07-31 15:31     ` joeyli
2015-07-16 14:25 ` [RFC PATCH 09/16] PM / hibernate: Reserve swsusp key and earse footprints Lee, Chun-Yi
2015-07-28 12:35   ` Pavel Machek
2015-07-31 15:43     ` joeyli
2015-07-16 14:25 ` [RFC PATCH 10/16] PM / hibernate: Generate and verify signature of hibernate snapshot Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 11/16] PM / hibernate: Avoid including swsusp key to hibernate image Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 12/16] PM / hibernate: Forward signature verifying result and key to image kernel Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 13/16] PM / hibernate: Add configuration to enforce signature verification Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 14/16] PM / hibernate: Allow user trigger swsusp key re-generating Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 15/16] PM / hibernate: Bypass verification logic on legacy BIOS Lee, Chun-Yi
2015-07-16 14:25 ` [RFC PATCH 16/16] PM / hibernate: Document signature verification of hibernate snapshot Lee, Chun-Yi
2015-07-24 17:08 ` [RFC PATCH 00/16] Signature " Jiri Kosina
2015-07-24 20:08   ` Rafael J. Wysocki
2015-07-28 12:09     ` Matt Fleming
2015-07-25 14:32   ` joeyli

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