linux-kernel - Re: [PATCH] X.509: Support parsing certificate using SM2 algorithm

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Message-ID: <99a79ccb-8dd9-ac37-2a1d-ec390bcb0c8a@linux.alibaba.com>
Date:   Sat, 18 Sep 2021 10:25:02 +0800
From:   Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
To:     David Howells <dhowells@...hat.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Biggers <ebiggers@...gle.com>,
        Eric Biggers <ebiggers@...nel.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Vitaly Chikunov <vt@...linux.org>,
        Gilad Ben-Yossef <gilad@...yossef.com>,
        Pascal van Leeuwen <pvanleeuwen@...bus.com>,
        keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jia Zhang <zhang.jia@...ux.alibaba.com>,
        "YiLin . Li" <YiLin.Li@...ux.alibaba.com>
Subject: Re: [PATCH] X.509: Support parsing certificate using SM2 algorithm

ping.

On 7/12/21 4:13 PM, Tianjia Zhang wrote:
> The SM2-with-SM3 certificate generated by latest openssl no longer
> reuses the OID_id_ecPublicKey, but directly uses OID_sm2. This patch
> supports this type of x509 certificate parsing.
> 
> Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
> ---
>   crypto/asymmetric_keys/x509_cert_parser.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
> index 6d003096b5bc..6a945a6ce787 100644
> --- a/crypto/asymmetric_keys/x509_cert_parser.c
> +++ b/crypto/asymmetric_keys/x509_cert_parser.c
> @@ -496,6 +496,9 @@ int x509_extract_key_data(void *context, size_t hdrlen,
>   	case OID_gost2012PKey512:
>   		ctx->cert->pub->pkey_algo = "ecrdsa";
>   		break;
> +	case OID_sm2:
> +		ctx->cert->pub->pkey_algo = "sm2";
> +		break;
>   	case OID_id_ecPublicKey:
>   		if (parse_OID(ctx->params, ctx->params_size, &oid) != 0)
>   			return -EBADMSG;
>