From acc0d14f65b7698dfeb6d68e58d46fd2c3f3b6b9 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Mon, 4 Jun 2018 16:08:43 +0100
Subject: [PATCH] Fix elliptic curve setup

as per https://github.com/matrix-org/synapse/pull/3157
---
 sydent/http/httpclient.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sydent/http/httpclient.py b/sydent/http/httpclient.py
index a325cbfa..837bc11e 100644
--- a/sydent/http/httpclient.py
+++ b/sydent/http/httpclient.py
@@ -84,8 +84,8 @@ class FederationPolicyForHTTPS(object):
     def creatorForNetloc(self, hostname, port):
         context = SSL.Context(SSL.SSLv23_METHOD)
         try:
-            _ecCurve = _OpenSSLECCurve(_defaultCurveName)
-            _ecCurve.addECKeyToContext(context)
+            _ecCurve = crypto.get_elliptic_curve(_defaultCurveName)
+            context.set_tmp_ecdh(_ecCurve)
         except Exception:
             logger.exception("Failed to enable elliptic curve for TLS")
         context.set_options(SSL.OP_NO_SSLv2 | SSL.OP_NO_SSLv3)