linux-kernel - Re: [RFC/RFT] KEYS: trusted: Add generic trusted keys framework

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Message-ID: <20190711192215.5w3fzdjwsebgoesh@linux.intel.com>
Date:   Thu, 11 Jul 2019 22:22:15 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Sumit Garg <sumit.garg@...aro.org>
Cc:     keyrings@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-crypto@...r.kernel.org,
        linux-security-module@...r.kernel.org, dhowells@...hat.com,
        herbert@...dor.apana.org.au, davem@...emloft.net,
        jejb@...ux.ibm.com, zohar@...ux.ibm.com, jmorris@...ei.org,
        serge@...lyn.com, casey@...aufler-ca.com,
        ard.biesheuvel@...aro.org, daniel.thompson@...aro.org,
        linux-kernel@...r.kernel.org, tee-dev@...ts.linaro.org
Subject: Re: [RFC/RFT] KEYS: trusted: Add generic trusted keys framework

On Fri, Jul 05, 2019 at 08:02:34PM +0530, Sumit Garg wrote:
> Current trusted keys framework is tightly coupled to use TPM device as
> an underlying implementation which makes it difficult for implementations
> like Trusted Execution Environment (TEE) etc. to provide trusked keys
> support in case platform doesn't posses a TPM device.
> 
> So this patch tries to add generic trusted keys framework where underlying
> implemtations like TPM, TEE etc. could be easily plugged-in.
> 
> Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

1. Needs to be somehow dissected into digestable/reviewable pieces.
2. As a precursory step probably would make sense to move all
   existing trusted keys code into one subsystem first.

/Jarkko