Subject: Re: [PATCH 10/18] crypto: dh - introduce support for ephemeral key
 generation to dh-generic
To:     Nicolai Stange <nstange@suse.de>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>
Cc:     =?UTF-8?Q?Stephan_M=c3=bcller?= <smueller@chronox.de>,
        Torsten Duwe <duwe@suse.de>, Zaibo Xu <xuzaibo@huawei.com>,
        Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
        David Howells <dhowells@redhat.com>,
        Jarkko Sakkinen <jarkko@kernel.org>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        qat-linux@intel.com, keyrings@vger.kernel.org
References: <20211201004858.19831-1-nstange@suse.de>
 <20211201004858.19831-11-nstange@suse.de>
From:   Hannes Reinecke <hare@suse.de>
Message-ID: <70e1c5fc-aaf5-1366-561d-178cd3688eea@suse.de>
Date:   Wed, 1 Dec 2021 08:29:34 +0100
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On 12/1/21 1:48 AM, Nicolai Stange wrote:
> The support for NVME in-band authentication currently in the works ([1])
> needs to generate ephemeral DH keys. Make dh-generic's ->set_secret()
> to generate an ephemeral key via the recently added crypto_dh_gen_privkey()
> in case the input ->key_size is zero. Note that this behaviour is in
> analogy to ecdh's ->set_secret().
> 
> [1] https://lkml.kernel.org/r/20211122074727.25988-4-hare@suse.de
> 
> Signed-off-by: Nicolai Stange <nstange@suse.de>
> ---
>   crypto/dh.c | 24 ++++++++++++++++++++----
>   1 file changed, 20 insertions(+), 4 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@suse.de                              +49 911 74053 688
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