linux-kernel - Re: [PATCH v1 0/3] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys

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Message-ID: <8b72335f-6ecd-3683-af82-ab5ca96d9528@pengutronix.de>
Date:   Tue, 23 Mar 2021 17:34:44 +0100
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Horia Geantă <horia.geanta@....com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        James Bottomley <jejb@...ux.ibm.com>
Cc:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        David Howells <dhowells@...hat.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Steffen Trumtrar <s.trumtrar@...gutronix.de>,
        Udit Agarwal <udit.agarwal@....com>,
        Jan Luebbe <j.luebbe@...gutronix.de>,
        David Gstir <david@...ma-star.at>,
        Franck Lenormand <franck.lenormand@....com>,
        Sumit Garg <sumit.garg@...aro.org>,
        "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "keyrings@...r.kernel.org" <keyrings@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH v1 0/3] KEYS: trusted: Introduce support for NXP
 CAAM-based trusted keys

Hello Horia,

On 21.03.21 21:01, Horia Geantă wrote:
> On 3/16/2021 7:02 PM, Ahmad Fatoum wrote:
>> This patch series builds on top of Sumit's rework to have the CAAM as yet another
>> trusted key backend.
>>
> Shouldn't the description under TRUSTED_KEYS (in security/keys/Kconfig)
> be updated to reflect the availability of multiple backends?

This is indeed no longer correct. It also depends on TCG_TPM, which AFAIU
is not really needed for the new TEE backend.

@Sumit, can you confirm?

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