From ef17ac0211ddd486127e1f94756fbb3fd704a9b4 Mon Sep 17 00:00:00 2001
From: CryptoManiac <CryptoManiac@users.noreply.github.com>
Date: Thu, 2 Dec 2021 20:32:36 +0300
Subject: [PATCH] BN_zero -> BN_set_word

---
 src/key.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/key.cpp b/src/key.cpp
index 0aaa948..94a54ef 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -102,7 +102,7 @@ int ECDSA_SIG_recover_key_GFp(EC_KEY *eckey, ECDSA_SIG *ecsig, const unsigned ch
     if (!BN_bin2bn(msg, msglen, e)) { ret=-1; goto err; }
     if (8*msglen > n) BN_rshift(e, e, 8-(n & 7));
     zero = BN_CTX_get(ctx);
-    BN_zero(zero);
+    if (!BN_set_word(zero, 0)) { ret=-1; goto err; }
     if (!BN_mod_sub(e, zero, e, order, ctx)) { ret=-1; goto err; }
     rr = BN_CTX_get(ctx);
     if (!BN_mod_inverse(rr, ecsig_r, order, ctx)) { ret=-1; goto err; }
-- 
1.7.1