From d47b346150868622f42178994fc26f799a80410a Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Wed, 6 Nov 2019 20:11:21 +0300
Subject: [PATCH] ameth: fill digestParamSet for the sake of backwards
compatibility
Even though it is not recommended by R 1323565.1.023-2018 fill
digestParamSet field for 512-bit curves Test, TC26-A, TC26-B because old
cryptoproviders expect this field to be present.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
gost_ameth.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/gost_ameth.c b/gost_ameth.c
index 22631c0..7fe05c8 100644
--- a/gost_ameth.c
+++ b/gost_ameth.c
@@ -79,6 +79,12 @@ static ASN1_STRING *encode_gost_algor_params(const EVP_PKEY *key)
break;
case NID_id_GostR3410_2012_512:
pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr));
+ switch (pkey_param_nid) {
+ case NID_id_tc26_gost_3410_2012_512_paramSetTest:
+ case NID_id_tc26_gost_3410_2012_512_paramSetA:
+ case NID_id_tc26_gost_3410_2012_512_paramSetB:
+ gkp->hash_params = OBJ_nid2obj(NID_id_GostR3411_2012_512);
+ }
break;
case NID_id_GostR3410_2001:
pkey_param_nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(key_ptr));
--
2.39.5