linux-kernel - Re: [PATCH v1.2 3/4] keys: add new trusted key-type

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Message-ID: <20101108170937.GA31501@obsidianresearch.com>
Date:	Mon, 8 Nov 2010 10:09:37 -0700
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, keyrings@...ux-nfs.org,
	linux-crypto@...r.kernel.org, David Howells <dhowells@...hat.com>,
	James Morris <jmorris@...ei.org>,
	David Safford <safford@...son.ibm.com>,
	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>,
	Mimi Zohar <zohar@...ibm.com>
Subject: Re: [PATCH v1.2 3/4] keys: add new trusted key-type

On Mon, Nov 08, 2010 at 10:30:45AM -0500, Mimi Zohar wrote:

> pcrlock=n    extends the designated PCR 'n' with a random value,
>              so that a key sealed to that PCR may not be unsealed
>              again until after a reboot.

Nice, but this seems very strange to me, since it has nothing to do
with the key and could be done easially in userspace?

Jason
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