[PATCH v4 2/2] pkcs7: support EC-RDSA/streebog in SignerInfo

[Tianjia Zhang]

From: Elvira Khabirova <e.khabirova@xxxxxx>

Allow using EC-RDSA/streebog in pkcs7 certificates in a similar way
to how it's done in the x509 parser.

This is needed e.g. for loading kernel modules signed with EC-RDSA.

Signed-off-by: Elvira Khabirova <e.khabirova@xxxxxx>
Reviewed-by: Vitaly Chikunov <vt@xxxxxxxxxxxx>
Reviewed-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>
---
 crypto/asymmetric_keys/pkcs7_parser.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index 24e2e4a6d842..277482bb1777 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -251,6 +251,12 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
 	case OID_sm3:
 		ctx->sinfo->sig->hash_algo = "sm3";
 		break;
+	case OID_gost2012Digest256:
+		ctx->sinfo->sig->hash_algo = "streebog256";
+		break;
+	case OID_gost2012Digest512:
+		ctx->sinfo->sig->hash_algo = "streebog512";
+		break;
 	default:
 		printk("Unsupported digest algo: %u\n", ctx->last_oid);
 		return -ENOPKG;
@@ -284,6 +290,11 @@ int pkcs7_sig_note_pkey_algo(void *context, size_t hdrlen,
 		ctx->sinfo->sig->pkey_algo = "sm2";
 		ctx->sinfo->sig->encoding = "raw";
 		break;
+	case OID_gost2012PKey256:
+	case OID_gost2012PKey512:
+		ctx->sinfo->sig->pkey_algo = "ecrdsa";
+		ctx->sinfo->sig->encoding = "raw";
+		break;
 	default:
 		printk("Unsupported pkey algo: %u\n", ctx->last_oid);
 		return -ENOPKG;
-- 
2.19.1.3.ge56e4f7