x509: Add OID for NIST P384 and extend parser for it

Prepare the x509 parser to accept NIST P384 certificates and add the
OID for ansip384r1, which is the identifier for NIST P384.

Summary of changes:

* crypto/asymmetric_keys/x509_cert_parser.c
  - prepare x509 parser to load NIST P384

* include/linux/oid_registry.h
  - add OID_ansip384r1
Signed-off-by: Saulo Alessandre <saulo.alessandre@tse.jus.br>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/asymmetric_keys/x509_cert_parser.c

@@ -510,6 +510,9 @@ int x509_extract_key_data(void *context, size_t hdrlen,
 		case OID_id_prime256v1:
 			ctx->cert->pub->pkey_algo = "ecdsa-nist-p256";
 			break;
+		case OID_id_ansip384r1:
+			ctx->cert->pub->pkey_algo = "ecdsa-nist-p384";
+			break;
 		default:
 			return -ENOPKG;
 		}

include/linux/oid_registry.h

@@ -64,6 +64,7 @@ enum OID {
 
 	OID_certAuthInfoAccess,		/* 1.3.6.1.5.5.7.1.1 */
 	OID_sha1,			/* 1.3.14.3.2.26 */
+	OID_id_ansip384r1,		/* 1.3.132.0.34 */
 	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 */