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From: Kees Cook <keescook@chromium.org>
To: Evan Green <evgreen@chromium.org>
Cc: linux-kernel@vger.kernel.org, corbet@lwn.net,
	linux-pm@vger.kernel.org, rjw@rjwysocki.net,
	gwendal@chromium.org, apronin@chromium.org,
	Pavel Machek <pavel@ucw.cz>,
	Matthew Garrett <mgarrett@aurora.tech>,
	linux-integrity@vger.kernel.org, jejb@linux.ibm.com,
	zohar@linux.ibm.com, dlunev@google.com,
	Eric Biggers <ebiggers@kernel.org>,
	Ben Boeckel <me@benboeckel.net>,
	jarkko@kernel.org, Matthew Garrett <matthewgarrett@google.com>,
	Matthew Garrett <mjg59@google.com>,
	Ben Boeckel <linux@me.benboeckel.net>,
	David Howells <dhowells@redhat.com>,
	James Morris <jmorris@namei.org>,
	Paul Moore <paul@paul-moore.com>,
	"Serge E. Hallyn" <serge@hallyn.com>,
	keyrings@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-security-module@vger.kernel.org
Subject: Re: [PATCH v4 05/11] security: keys: trusted: Allow storage of PCR values in creation data
Date: Fri, 4 Nov 2022 11:34:31 -0700	[thread overview]
Message-ID: <202211041134.927C258@keescook> (raw)
In-Reply-To: <20221103105558.v4.5.I32591db064b6cdc91850d777f363c9d05c985b39@changeid>

On Thu, Nov 03, 2022 at 11:01:13AM -0700, Evan Green wrote:
> From: Matthew Garrett <matthewgarrett@google.com>
> 
> When TPMs generate keys, they can also generate some information
> describing the state of the PCRs at creation time. This data can then
> later be certified by the TPM, allowing verification of the PCR values.
> This allows us to determine the state of the system at the time a key
> was generated. Add an additional argument to the trusted key creation
> options, allowing the user to provide the set of PCRs that should have
> their values incorporated into the creation data.
> 
> Link: https://lore.kernel.org/lkml/20210220013255.1083202-6-matthewgarrett@google.com/
> Signed-off-by: Matthew Garrett <mjg59@google.com>

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook

  reply	other threads:[~2022-11-04 18:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-03 18:01 [PATCH v4 00/11] Encrypted Hibernation Evan Green
2022-11-03 18:01 ` [PATCH v4 04/11] security: keys: trusted: Include TPM2 creation data Evan Green
2022-11-04 18:33   ` Kees Cook
2022-11-07 20:11     ` Evan Green
2022-11-10  0:29       ` Evan Green
2022-11-03 18:01 ` [PATCH v4 05/11] security: keys: trusted: Allow storage of PCR values in " Evan Green
2022-11-04 18:34   ` Kees Cook [this message]
2022-11-03 18:01 ` [PATCH v4 06/11] security: keys: trusted: Verify " Evan Green
2022-11-04 18:35   ` Kees Cook

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