kernel-5.15/0001-crypto-support-loading-GOST-signed-kernel-modules.patch

From 59bf6ed4709ea82d63be300814af2c4c94503e14 Mon Sep 17 00:00:00 2001
From: Mikhail Novosyolov <m.novosyolov@rosalinux.ru>
Date: Thu, 6 Aug 2020 14:17:31 +0300
Subject: [PATCH] crypto: support loading GOST-signed kernel modules

Support loading kernel modules signed with:
* 1.2.643.7.1.1.1.1 id-tc26-gost3410-12-256
* 1.2.643.7.1.1.1.2 id-tc26-gost3410-12-512

Signed-off-by: Mikhail Novosyolov <m.novosyolov@rosalinux.ru>
---
 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 967329e0a07b..39c260a04167 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -248,6 +248,12 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
 	case OID_sha224:
 		ctx->sinfo->sig->hash_algo = "sha224";
 		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;
@@ -269,6 +275,11 @@ int pkcs7_sig_note_pkey_algo(void *context, size_t hdrlen,
 		ctx->sinfo->sig->pkey_algo = "rsa";
 		ctx->sinfo->sig->encoding = "pkcs1";
 		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;
-- 
2.17.1