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Message-ID: <20210129030004.GA3463@gondor.apana.org.au>
Date: Fri, 29 Jan 2021 14:00:04 +1100
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Stefan Berger <stefanb@...ux.ibm.com>
Cc: Ard Biesheuvel <ardb@...nel.org>, Meng Yu <yumeng18@...wei.com>,
"David S. Miller" <davem@...emloft.net>,
Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
Zaibo Xu <xuzaibo@...wei.com>, wangzhou1@...ilicon.com,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Daniele Alessandrelli <daniele.alessandrelli@...ux.intel.com>,
Mark Gross <mgross@...ux.intel.com>,
"Khurana, Prabhjot" <prabhjot.khurana@...el.com>,
"Reshetova, Elena" <elena.reshetova@...el.com>,
Patrick Uiterwijk <patrick@...terwijk.org>
Subject: Re: [PATCH v7 4/7] crypto: add ecc curve and expose them
On Thu, Jan 28, 2021 at 09:49:41PM -0500, Stefan Berger wrote:
>
> In my patch series I initially had registered the akciphers under the names
> ecc-nist-p192 and ecc-nist-p256 but now, in V4, joined them together as
> 'ecdsa'. This may be too generic for a name. Maybe it should be called
> ecsda-nist for the NIST family.
What I'm proposing is specifying the curve in the name as well, i.e.,
ecdsa-nist-p192 instead of just ecdsa or ecdsa-nist.
This simplifies the task of handling hardware that only supports a
subset of curves.
There is a parallel discussion of exactly what curves we should
support in the kernel. Personally if there is a user in the kernel
for it then I'm happy to see it added. In your specific case, as
long as your use of the algorithm in x509 is accepted then I don't
have any problems with adding support in the Crypto API.
Cheers,
--
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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