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Message-Id: <D1A7BZNCNPW8.281BRWPJVW0JX@kernel.org>
Date: Wed, 15 May 2024 15:03:15 +0300
From: "Jarkko Sakkinen" <jarkko@...nel.org>
To: "Jarkko Sakkinen" <jarkko@...nel.org>, "Ignat Korchagin"
 <ignat@...udflare.com>
Cc: "James Bottomley" <James.Bottomley@...senpartnership.com>, "Mimi Zohar"
 <zohar@...ux.ibm.com>, "David Howells" <dhowells@...hat.com>, "Paul Moore"
 <paul@...l-moore.com>, "James Morris" <jmorris@...ei.org>,
 <serge@...lyn.com>, <linux-integrity@...r.kernel.org>,
 <keyrings@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <kernel-team@...udflare.com>
Subject: Re: [RFC PATCH 2/2] KEYS: implement derived keys

On Wed May 15, 2024 at 3:00 PM EEST, Jarkko Sakkinen wrote:
> I did as much clarification as I possibly can.
>
> Also, if you look at confidential computing platforms there's exactly
> two assets that they use lock into machine:
>
> - Binary
> - CPU material
>
> Only carved into stone immutable material for key derivation.
>
> You can use mm_struct->exe_file binary if that will work out for you.
> I'm done with this version.

Pretty good case for having SGX, TDX and SNP in something else than just
Xeon's and EPYC's ;-)

But yeah within time limits I have I've used more quota for this
than I should have.

I look at +1 (if there is one).

BR, Jarkko

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