From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
To: jejb@linux.ibm.com, Jarkko Sakkinen <jarkko@kernel.org>,
Mimi Zohar <zohar@linux.ibm.com>,
Jonathan Corbet <corbet@lwn.net>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
David Howells <dhowells@redhat.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
Jerry Snitselaar <jsnitsel@redhat.com>,
linux-integrity@vger.kernel.org, keyrings@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-crypto@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH 0/2] tpm: use SM3 instead of SM3_256
Date: Mon, 11 Oct 2021 15:02:24 +0800 [thread overview]
Message-ID: <c39fe737-203e-b124-db70-fce471ac6459@linux.alibaba.com> (raw)
In-Reply-To: <1749e7c3b528d361c09b40e5758b92c7386ffe1f.camel@linux.ibm.com>
Hi James,
On 10/9/21 9:29 PM, James Bottomley wrote:
> On Sat, 2021-10-09 at 21:08 +0800, Tianjia Zhang wrote:
>> According to https://tools.ietf.org/id/draft-oscca-cfrg-sm3-01.html,
>> SM3 always produces a 256-bit hash value and there are no plans for
>> other length development, so there is no ambiguity in the name of
>> sm3.
>
> For the TPM we're following the TPM Library specification
>
> https://trustedcomputinggroup.org/resource/tpm-library-specification/
>
> Which is very clear: the algorithm name is TPM_ALG_SM3_256
>
> We're using sm3 as our exposed name because that's what linux crypto
> uses, so there should be no problem in what the end user sees, but
> changing to non standard TPM definitions is only going to cause
> confusion at the kernel level.
>
> James
>
Thanks for your attention. This is really tricky. I will contact
trustedcomputinggroup first and give some suggestions, It would be best
if a more standard algorithm name can be used from the source of the
specification.
I think the macro definition of the crypto directory can remove this
suffix first, that is, apply patch 1. What's your opinion?
Best regards,
Tianjia
prev parent reply other threads:[~2021-10-11 7:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-09 13:08 [PATCH 0/2] tpm: use SM3 instead of SM3_256 Tianjia Zhang
2021-10-09 13:08 ` [PATCH 1/2] crypto: " Tianjia Zhang
2021-10-18 13:05 ` James Bottomley
2021-10-18 13:27 ` Jarkko Sakkinen
2021-10-18 13:32 ` James Bottomley
2021-10-18 13:41 ` Jarkko Sakkinen
2021-10-19 9:39 ` Tianjia Zhang
2021-10-19 9:35 ` Tianjia Zhang
2021-10-09 13:08 ` [PATCH 2/2] tpm: " Tianjia Zhang
2021-10-12 15:21 ` Jarkko Sakkinen
2021-10-14 9:46 ` Tianjia Zhang
2021-10-15 15:19 ` Jarkko Sakkinen
2021-10-18 2:37 ` Tianjia Zhang
2021-10-18 12:48 ` Jarkko Sakkinen
2021-10-09 13:29 ` [PATCH 0/2] " James Bottomley
2021-10-11 7:02 ` Tianjia Zhang [this message]
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