Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755376AbbG1MCA (ORCPT ); Tue, 28 Jul 2015 08:02:00 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:42664 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751323AbbG1MB6 (ORCPT ); Tue, 28 Jul 2015 08:01:58 -0400 Date: Tue, 28 Jul 2015 14:01:56 +0200 From: Pavel Machek To: "Lee, Chun-Yi" Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, linux-pm@vger.kernel.org, "Rafael J. Wysocki" , Matthew Garrett , Len Brown , Josh Boyer , Vojtech Pavlik , Matt Fleming , Jiri Kosina , "H. Peter Anvin" , "Lee, Chun-Yi" Subject: Re: [RFC PATCH 01/16] PM / hibernate: define HMAC algorithm and digest size of swsusp Message-ID: <20150728120156.GB9518@amd> References: <1437056730-15247-1-git-send-email-jlee@suse.com> <1437056730-15247-2-git-send-email-jlee@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1437056730-15247-2-git-send-email-jlee@suse.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1347 Lines: 37 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 > --- > 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. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/