linux-kernel - [PATCH v5 12/12] crypto: x509 - Add OID for NIST P521 and extend parser for it

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Message-ID: <20240306222257.979304-13-stefanb@linux.ibm.com>
Date: Wed,  6 Mar 2024 17:22:57 -0500
From: Stefan Berger <stefanb@...ux.ibm.com>
To: keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        herbert@...dor.apana.org.au, davem@...emloft.net
Cc: linux-kernel@...r.kernel.org, saulo.alessandre@....jus.br, lukas@...ner.de,
        Stefan Berger <stefanb@...ux.ibm.com>,
        David Howells <dhowells@...hat.com>
Subject: [PATCH v5 12/12] crypto: x509 - Add OID for NIST P521 and extend parser for it

Enable the x509 parser to accept NIST P521 certificates and add the
OID for ansip521r1, which is the identifier for NIST P521.

Cc: David Howells <dhowells@...hat.com>
Signed-off-by: Stefan Berger <stefanb@...ux.ibm.com>
Tested-by: Lukas Wunner <lukas@...ner.de>
---
 crypto/asymmetric_keys/x509_cert_parser.c | 3 +++
 include/linux/oid_registry.h              | 1 +
 2 files changed, 4 insertions(+)

diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 487204d39426..99f809b7910b 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -538,6 +538,9 @@ int x509_extract_key_data(void *context, size_t hdrlen,
 		case OID_id_ansip384r1:
 			ctx->cert->pub->pkey_algo = "ecdsa-nist-p384";
 			break;
+		case OID_id_ansip521r1:
+			ctx->cert->pub->pkey_algo = "ecdsa-nist-p521";
+			break;
 		default:
 			return -ENOPKG;
 		}
diff --git a/include/linux/oid_registry.h b/include/linux/oid_registry.h
index 3921fbed0b28..af16d96fbbf2 100644
--- a/include/linux/oid_registry.h
+++ b/include/linux/oid_registry.h
@@ -65,6 +65,7 @@ enum OID {
 	OID_Scram,			/* 1.3.6.1.5.5.14 */
 	OID_certAuthInfoAccess,		/* 1.3.6.1.5.5.7.1.1 */
 	OID_id_ansip384r1,		/* 1.3.132.0.34 */
+	OID_id_ansip521r1,		/* 1.3.132.0.35 */
 	OID_sha256,			/* 2.16.840.1.101.3.4.2.1 */
 	OID_sha384,			/* 2.16.840.1.101.3.4.2.2 */
 	OID_sha512,			/* 2.16.840.1.101.3.4.2.3 */
-- 
2.43.0