linux-kernel - Re: [PATCH 1/2] security/keys/secure_key: Adds the secure key support based on CAAM.

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Date:   Mon, 23 Jul 2018 14:42:36 +0200
From:   Jan Lübbe <jlu@...gutronix.de>
To:     Udit Agarwal <udit.agarwal@....com>,
        "dhowells@...hat.com" <dhowells@...hat.com>,
        "zohar@...ux.vnet.ibm.com" <zohar@...ux.vnet.ibm.com>,
        "jmorris@...ei.org" <jmorris@...ei.org>,
        "serge@...lyn.com" <serge@...lyn.com>,
        "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "keyrings@...r.kernel.org" <keyrings@...r.kernel.org>,
        "linux-security-module@...r.kernel.org" 
        <linux-security-module@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Sahil Malhotra <sahil.malhotra@....com>,
        Ruchika Gupta <ruchika.gupta@....com>,
        Horia Geanta <horia.geanta@....com>,
        Aymen Sghaier <aymen.sghaier@....com>
Subject: Re: [PATCH 1/2] security/keys/secure_key: Adds the secure key
 support based on CAAM.

Hi,

On Sat, 2018-07-21 at 14:44 +0000, Udit Agarwal wrote:
> Thanks for sharing the documentation changes and feedback.
> 
> Below are the answers to the questions:
> 
> 1. Currently the secure key patch series has been added  to support
> only data blobs.
> It is not supporting key blobs as of now, we have thought of adding
> that support in future.

OK. Do have a plan how the key blobs would be represented in the
keyring? It seems it would need to be some sort of handle instead of
the key data. Would it need a different userspace API?

> 2. Yes secure keys could also be implemented using OPTEE. I will
> change the documentation in next patch version.

Thanks!

Jan