[PATCH v6 13/13] crypto: x509 - Add OID for NIST P521 and extend parser for it

[Stefan Berger <stefanb@linux.vnet.ibm.com>]

From: Stefan Berger <stefanb@linux.ibm.com>

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@redhat.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Tested-by: Lukas Wunner <lukas@wunner.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