linux-kernel - Re: [PATCH v6 4/4] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys

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Date:   Tue, 22 Mar 2022 08:33:34 +0100
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Jarkko Sakkinen <jarkko@...nel.org>
Cc:     Jonathan Corbet <corbet@....net>,
        David Howells <dhowells@...hat.com>,
        James Bottomley <jejb@...ux.ibm.com>,
        Mimi Zohar <zohar@...ux.ibm.com>, kernel@...gutronix.de,
        David Gstir <david@...ma-star.at>,
        Pankaj Gupta <pankaj.gupta@....com>,
        Tim Harvey <tharvey@...eworks.com>,
        Matthias Schiffer <matthias.schiffer@...tq-group.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Horia Geantă <horia.geanta@....com>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Biggers <ebiggers@...nel.org>,
        Jan Luebbe <j.luebbe@...gutronix.de>,
        Richard Weinberger <richard@....at>,
        Franck LENORMAND <franck.lenormand@....com>,
        Sumit Garg <sumit.garg@...aro.org>, keyrings@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org
Subject: Re: [PATCH v6 4/4] KEYS: trusted: Introduce support for NXP
 CAAM-based trusted keys

Hello Jarkko,

On 20.03.22 22:02, Jarkko Sakkinen wrote:
> On Wed, Mar 16, 2022 at 05:43:35PM +0100, Ahmad Fatoum wrote:
>> @@ -192,6 +217,19 @@ Usage::
>>  specific to TEE device implementation.  The key length for new keys is always
>>  in bytes. Trusted Keys can be 32 - 128 bytes (256 - 1024 bits).
>>  
>> +Trusted Keys usage: CAAM
>> +------------------------
>> +
>> +Usage::
>> +
>> +    keyctl add trusted name "new keylen" ring
>> +    keyctl add trusted name "load hex_blob" ring
>> +    keyctl print keyid
>> +
>> +"keyctl print" returns an ASCII hex copy of the sealed key, which is in format
>> +specific to CAAM device implementation.  The key length for new keys is always
>> +in bytes. Trusted Keys can be 32 - 128 bytes (256 - 1024 bits).
>> +
>>  Encrypted Keys usage
>>  --------------------
>>  
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 05fd080b82f3..f13382a14967 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -10647,6 +10647,15 @@ S:	Supported
>>  F:	include/keys/trusted_tee.h
>>  F:	security/keys/trusted-keys/trusted_tee.c
>>  
>> +KEYS-TRUSTED-CAAM
>> +M:	Ahmad Fatoum <a.fatoum@...gutronix.de>
>> +R:	Pengutronix Kernel Team <kernel@...gutronix.de>
>> +L:	linux-integrity@...r.kernel.org
>> +L:	keyrings@...r.kernel.org
>> +S:	Maintained
>> +F:	include/keys/trusted_caam.h
>> +F:	security/keys/trusted-keys/trusted_caam.c
>> +
>>  KEYS/KEYRINGS
>>  M:	David Howells <dhowells@...hat.com>
>>  M:	Jarkko Sakkinen <jarkko@...nel.org>
> 
> Documentation and MAINTAINERS updates must be separate patches.

I will do so for v7. Does this patch look otherwise ok to you?

Thanks,
Ahmad

> 
> BR, Jarkko
> 


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