[PATCH v4 1/2] pkcs7: parser support SM2 and SM3 algorithms combination

[Tianjia Zhang]

Support parsing the message signature of the SM2 and SM3 algorithm
combination. This group of algorithms has been well supported. One
of the main users is module signature verification.

Signed-off-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>
Reviewed-by: Vitaly Chikunov <vt@xxxxxxxxxxxx>
Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
---
 crypto/asymmetric_keys/pkcs7_parser.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index 6592279d839a..24e2e4a6d842 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -248,6 +248,9 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
 	case OID_sha224:
 		ctx->sinfo->sig->hash_algo = "sha224";
 		break;
+	case OID_sm3:
+		ctx->sinfo->sig->hash_algo = "sm3";
+		break;
 	default:
 		printk("Unsupported digest algo: %u\n", ctx->last_oid);
 		return -ENOPKG;
@@ -277,6 +280,10 @@ int pkcs7_sig_note_pkey_algo(void *context, size_t hdrlen,
 		ctx->sinfo->sig->pkey_algo = "ecdsa";
 		ctx->sinfo->sig->encoding = "x962";
 		break;
+	case OID_SM2_with_SM3:
+		ctx->sinfo->sig->pkey_algo = "sm2";
+		ctx->sinfo->sig->encoding = "raw";
+		break;
 	default:
 		printk("Unsupported pkey algo: %u\n", ctx->last_oid);
 		return -ENOPKG;
-- 
2.19.1.3.ge56e4f7