From patchwork Tue Jan 26 19:11:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 371689 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CCAFC433E0 for ; Wed, 27 Jan 2021 13:31:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37786207C7 for ; Wed, 27 Jan 2021 13:31:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S313465AbhAZWfo (ORCPT ); Tue, 26 Jan 2021 17:35:44 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:5712 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2395230AbhAZTMS (ORCPT ); Tue, 26 Jan 2021 14:12:18 -0500 Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 10QJ2Al6192571; Tue, 26 Jan 2021 14:11:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=vfwSj6vlYSSmIGdUcZZ+Hwp8PfJM9qaqp+/yheoF7G4=; b=fBeMCUv8me+C3Y27JWUajSDQzs0viXbnqwWF8YPQZT7SQg8upxAzuC0aiA4Rirvw0biY /m6wqP9rf0DGXzVS55lainMxMzd2JXxFdoblanPjzfkooL7HvfmEz/XykmHihragPn46 DVG0j1p+nvbB5a5mu3C38bMv45W2fHJgutyNZHWRjCD7LHJ6oEhNMmY6Iw86ssMdxeaf woxQ9vo0CIlXE+dxDj/6EtnxhLdiGxjcaD11wrSljRSAeCZ2qoI0McVVWfFne0qLK2tj swhR7TqjYCumLuxmsRiANUDkSlEOEMIcBtdOLqaoljJYlB4p/U+kkzKb0vcpLWbz+QOq kg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 36arvfg8dw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 26 Jan 2021 14:11:25 -0500 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 10QJ2Clt192670; Tue, 26 Jan 2021 14:11:25 -0500 Received: from ppma02dal.us.ibm.com (a.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.10]) by mx0a-001b2d01.pphosted.com with ESMTP id 36arvfg8df-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 26 Jan 2021 14:11:25 -0500 Received: from pps.filterd (ppma02dal.us.ibm.com [127.0.0.1]) by ppma02dal.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 10QJ2hsf020002; Tue, 26 Jan 2021 19:11:24 GMT Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by ppma02dal.us.ibm.com with ESMTP id 36a4mbrngc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 26 Jan 2021 19:11:24 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 10QJBMve21168446 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 26 Jan 2021 19:11:23 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DC11E136059; Tue, 26 Jan 2021 19:11:22 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4C380136055; Tue, 26 Jan 2021 19:11:22 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 26 Jan 2021 19:11:22 +0000 (GMT) From: Stefan Berger To: dhowells@redhat.com, keyrings@vger.kernel.org Cc: linux-kernel@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, linux-crypto@vger.kernel.org, patrick@puiterwijk.org, Stefan Berger Subject: [PATCH v2 1/3] x509: Detect sm2 keys by their parameters OID Date: Tue, 26 Jan 2021 14:11:13 -0500 Message-Id: <20210126191115.434842-2-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210126191115.434842-1-stefanb@linux.vnet.ibm.com> References: <20210126191115.434842-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2021-01-26_09:2021-01-26,2021-01-26 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 impostorscore=0 mlxscore=0 bulkscore=0 phishscore=0 adultscore=0 mlxlogscore=999 spamscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101260096 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Stefan Berger Detect whether a key is an sm2 type of key by its OID in the parameters array rather than assuming that everything under OID_id_ecPublicKey is sm2, which is not the case. Signed-off-by: Stefan Berger --- crypto/asymmetric_keys/x509_cert_parser.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c index 52c9b455fc7d..4643fe5ed69a 100644 --- a/crypto/asymmetric_keys/x509_cert_parser.c +++ b/crypto/asymmetric_keys/x509_cert_parser.c @@ -459,6 +459,7 @@ int x509_extract_key_data(void *context, size_t hdrlen, const void *value, size_t vlen) { struct x509_parse_context *ctx = context; + enum OID oid; ctx->key_algo = ctx->last_oid; switch (ctx->last_oid) { @@ -470,7 +471,17 @@ int x509_extract_key_data(void *context, size_t hdrlen, ctx->cert->pub->pkey_algo = "ecrdsa"; break; case OID_id_ecPublicKey: - ctx->cert->pub->pkey_algo = "sm2"; + if (ctx->params_size < 2) + return -ENOPKG; + + oid = look_up_OID(ctx->params + 2, ctx->params_size - 2); + switch (oid) { + case OID_sm2: + ctx->cert->pub->pkey_algo = "sm2"; + break; + default: + return -ENOPKG; + } break; default: return -ENOPKG;