linux-kernel - Re: [PATCH 1/5] PM / hibernate: Create snapshot keys handler

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Date:   Thu, 13 Sep 2018 16:39:16 +0800
From:   joeyli <jlee@...e.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     "Lee, Chun-Yi" <joeyli.kernel@...il.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Chen Yu <yu.c.chen@...el.com>,
        Oliver Neukum <oneukum@...e.com>,
        Ryan Chen <yu.chen.surf@...il.com>,
        David Howells <dhowells@...hat.com>,
        Giovanni Gherdovich <ggherdovich@...e.cz>
Subject: Re: [PATCH 1/5] PM / hibernate: Create snapshot keys handler

Hi Randy,

On Wed, Sep 12, 2018 at 09:27:27AM -0700, Randy Dunlap wrote:
> Hi,
> 
> On 9/12/18 7:23 AM, Lee, Chun-Yi wrote:
> > diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
> > index 3a6c2f87699e..7c5c30149dbc 100644
> > --- a/kernel/power/Kconfig
> > +++ b/kernel/power/Kconfig
> > @@ -76,6 +76,20 @@ config HIBERNATION
> >  
> >  	  For more information take a look at <file:Documentation/power/swsusp.txt>.
> >  
> > +config HIBERNATION_ENC_AUTH
> > + 	bool "Hibernation encryption and authentication"
> > + 	depends on HIBERNATION
> > + 	depends on TRUSTED_KEYS
> > +	select CRYPTO_AES
> > + 	select CRYPTO_HMAC
> > + 	select CRYPTO_SHA512
> > + 	help
> > +	  This option will encrypt and authenticate the memory snapshot image
> > +	  of hibernation. It prevents that the snapshot image be arbitrary
> 
> 	                                                         arbitrarily
> 
> > +	  modified. User can use TPMs trusted key or user defined key as the
> 
> 	            The user
> or	            A user can use the TPM's trusted key
>

Thanks for your review! I will update it in next version.

Joey Lee