linux-kernel - Re: [PATCH 1/4] keys: Introduce tsm keys

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Message-Id: <CUE26Z3BST2Z.3OTO2IP6Y5PFV@seitikki>
Date:   Fri, 28 Jul 2023 19:40:27 +0000
From:   "Jarkko Sakkinen" <jarkko@...nel.org>
To:     "Dan Williams" <dan.j.williams@...el.com>, <dhowells@...hat.com>
Cc:     "Kuppuswamy Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "Kuppuswamy Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        "Dionna Amalie Glaze" <dionnaglaze@...gle.com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Samuel Ortiz" <sameo@...osinc.com>, <peterz@...radead.org>,
        <linux-coco@...ts.linux.dev>, <keyrings@...r.kernel.org>,
        <x86@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] keys: Introduce tsm keys

On Fri Jul 28, 2023 at 7:30 PM UTC, Dan Williams wrote:
> One of the common operations of a TSM (Trusted Security Module) is to
> provide a way for a TVM (confidential computing guest execution
> environment) to take a measurement of its run state and use that with a
> key-exchange protocol to establish a shared secret with a third-party /
> remote attestation agent. The concept is common across TSMs, but the

This is obfuscated "white paper" alike language.

I have no idea what TSM's and TVM's are and I do not want to know. Even
confidential computing is useless buzzword in the context of providing
a key type for attestation.

I would replace "tsm" with "attestation".

BR, Jarkko