From 87557ae259973063177cb935bc6ef23044946218 Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Fri, 22 Sep 2017 14:35:54 +0200
Subject: [PATCH] auth: Fix a crash when getting a public GOST key if the
 private one is not set

---
 pdns/botan110signers.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pdns/botan110signers.cc b/pdns/botan110signers.cc
index e99ceda4c..bd8865cda 100644
--- a/pdns/botan110signers.cc
+++ b/pdns/botan110signers.cc
@@ -181,8 +181,9 @@ std::string GOSTDNSCryptoKeyEngine::getPubKeyHash() const
 
 std::string GOSTDNSCryptoKeyEngine::getPublicKeyString() const
 {
-  const BigInt&x =d_key->public_point().get_affine_x();
-  const BigInt&y =d_key->public_point().get_affine_y();
+  std::shared_ptr<GOST_3410_PublicKey> pk = d_pubkey ? d_pubkey : d_key;
+  const BigInt&x =pk->public_point().get_affine_x();
+  const BigInt&y =pk->public_point().get_affine_y();
   
   size_t part_size = std::max(x.bytes(), y.bytes());
  
-- 
2.40.0