From: Dmitry Belyavskiy <beldmit@gmail.com>
Date: Mon, 12 Dec 2016 13:47:46 +0000 (+0300)
Subject: Fix signature processing
X-Git-Tag: v1.1.0.2~16
X-Git-Url: http://wagner.pp.ru/gitweb/?a=commitdiff_plain;h=d21d11ec8e5b8eb62dbe0d802a3c9bcee2d83159;p=openssl-gost%2Fengine.git

Fix signature processing
---

diff --git a/gost_ec_sign.c b/gost_ec_sign.c
index 904b80c..03a2ba0 100644
--- a/gost_ec_sign.c
+++ b/gost_ec_sign.c
@@ -161,7 +161,7 @@ DSA_SIG *gost_ec_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
     BIGNUM *r = NULL, *s = NULL, *X = NULL, *tmp = NULL, *tmp2 = NULL,
         *k = NULL, *e = NULL;
 
-    const BIGNUM *new_r = NULL, *new_s = NULL;
+    BIGNUM *new_r = NULL, *new_s = NULL;
 
     EC_POINT *C = NULL;
     BN_CTX *ctx;
@@ -276,13 +276,13 @@ DSA_SIG *gost_ec_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
     }
     while (BN_is_zero(s));
 
-    DSA_SIG_get0(newsig, &new_r, &new_s);
     new_s = BN_dup(s);
     new_r = BN_dup(r);
     if (!new_s || !new_r) {
         GOSTerr(GOST_F_GOST_EC_SIGN, ERR_R_MALLOC_FAILURE);
         goto err;
     }
+    DSA_SIG_set0(newsig, new_r, new_s);
 
     ret = newsig;
  err: