linux-kernel - Re: [RFC V4 PATCH 00/15] Signature verification of hibernate snapshot

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Message-ID: <3744955.cCTmoQ1ejp@vostro.rjw.lan>
Date:	Thu, 17 Oct 2013 16:18:47 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Lee, Chun-Yi" <joeyli.kernel@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-crypto@...r.kernel.org,
	opensuse-kernel@...nsuse.org, David Howells <dhowells@...hat.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Josh Boyer <jwboyer@...hat.com>,
	Vojtech Pavlik <vojtech@...e.cz>,
	Matt Fleming <matt.fleming@...el.com>,
	James Bottomley <james.bottomley@...senpartnership.com>,
	Greg KH <gregkh@...uxfoundation.org>, JKosina@...e.com,
	Rusty Russell <rusty@...tcorp.com.au>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	"H. Peter Anvin" <hpa@...or.com>, Michal Marek <mmarek@...e.cz>,
	Gary Lin <GLin@...e.com>, Vivek Goyal <vgoyal@...hat.com>,
	"Lee, Chun-Yi" <jlee@...e.com>
Subject: Re: [RFC V4 PATCH 00/15] Signature verification of hibernate snapshot

On Sunday, September 15, 2013 08:56:46 AM Lee, Chun-Yi wrote:
> Hi experts,
> 
> This patchset is the implementation for signature verification of hibernate
> snapshot image. The origin idea is from Jiri Kosina: Let EFI bootloader
> generate key-pair in UEFI secure boot environment, then pass it to kernel
> for sign/verify S4 image.
> 
> Due to there have potential threat from the S4 image hacked, it may causes
> kernel lost the trust in UEFI secure boot. Hacker attack the S4 snapshot
> image in swap partition through whatever exploit from another trusted OS,
> and the exploit may don't need physical access machine.
> 
> So, this patchset give the ability to kernel for parsing RSA private key
> from EFI bootloader, then using the private key to generate the signature
> of S4 snapshot image. Kernel put the signature to snapshot header, and
> verify the signature when kernel try to recover snapshot image to memory.

I wonder what the status of this work is?  Is it considered ready for inclusion
or are you still going to work on it and resubmit?

Rafael

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