From: Mimi Zohar <zohar@linux.ibm.com>
To: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>,
herbert@gondor.apana.org.au, davem@davemloft.net,
jarkko.sakkinen@linux.intel.com, ebiggers@kernel.org,
dmitry.kasatkin@gmail.com, jmorris@namei.org, serge@hallyn.com
Cc: linux-crypto@vger.kernel.org, linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] crypto: fix mismatched hash algorithm name sm3-256 to sm3
Date: Mon, 17 Feb 2020 20:33:18 -0500 [thread overview]
Message-ID: <1581989598.8515.233.camel@linux.ibm.com> (raw)
In-Reply-To: <20200217093649.97938-2-tianjia.zhang@linux.alibaba.com>
On Mon, 2020-02-17 at 17:36 +0800, Tianjia Zhang wrote:
> The name sm3-256 is defined in hash_algo_name in hash_info, but the
> algorithm name implemented in sm3_generic.c is sm3, which will cause
> the sm3-256 algorithm to be not found in some application scenarios of
> the hash algorithm, and an ENOENT error will occur. For example,
> IMA, keys, and other subsystems that reference hash_algo_name all use
> the hash algorithm of sm3.
>
> 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.
>
> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
The previous version of this patch set is queued in the next-
integrity-testing branch. That version of this patch didn't
change TPM_ALG_SM3_256. Unless the TPM standard was modified, the TPM
spec refers to it as TPM_ALG_SM3_256. Has that changed?
Mimi
next prev parent reply other threads:[~2020-02-18 1:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 9:36 [PATCH v2] IMA hash algorithm supports sm3 Tianjia Zhang
2020-02-17 9:36 ` [PATCH v2 1/2] crypto: fix mismatched hash algorithm name sm3-256 to sm3 Tianjia Zhang
2020-02-18 1:33 ` Mimi Zohar [this message]
2020-02-18 2:43 ` Tianjia Zhang
[not found] ` <f26b221c-f2e1-a14b-46cb-cae03f1357aa@linux.alibaba.com>
2020-02-18 14:24 ` Mimi Zohar
2020-02-17 9:36 ` [PATCH v2 2/2] ima: add sm3 algorithm to hash algorithm configuration list Tianjia Zhang
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