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Subject: Re: [External] [PATCH v2 0/4] virtio-crypto: support ECDSA algorithm
From:   Lei He <helei.sig11@bytedance.com>
In-Reply-To: <Yr1JvG1aJUp4I/fP@gondor.apana.org.au>
Date:   Thu, 30 Jun 2022 15:23:39 +0800
Cc:     Lei He <helei.sig11@bytedance.com>, davem@davemloft.net,
        dhowells@redhat.com, "Michael S. Tsirkin" <mst@redhat.com>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        berrange@redhat.com, pizhenwei@bytedance.com
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Message-Id: <C7191BC8-5BE0-47CB-A302-735BBD1CBED0@bytedance.com>
References: <20220623070550.82053-1-helei.sig11@bytedance.com>
 <Yr1JvG1aJUp4I/fP@gondor.apana.org.au>
To:     Herbert Xu <herbert@gondor.apana.org.au>
Precedence: bulk


> On Jun 30, 2022, at 2:59 PM, Herbert Xu <herbert@gondor.apana.org.au> =
wrote:
>=20
> On Thu, Jun 23, 2022 at 03:05:46PM +0800, Lei He wrote:
>> From: lei he <helei.sig11@bytedance.com>
>>=20
>> This patch supports the ECDSA algorithm for virtio-crypto.
>=20
> Why is this necessary?
>=20

The main purpose of this patch is to offload ECDSA computations to =
virtio-crypto dev.
We can modify the backend of virtio-crypto to allow hardware like Intel =
QAT cards to=20
perform the actual calculations, and user-space applications such as =
HTTPS server=20
can access those backend in a unified way(eg, keyctl_pk_xx syscall).

Related works are also described in following patch series:
=
https://lwn.net/ml/linux-crypto/20220525090118.43403-1-helei.sig11@bytedan=
ce.com/

> Thanks,
> --=20
> Email: Herbert Xu <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt