Update EC certs to use NIST-256 and NIST-384
diff --git a/tests/data_files/server5.key b/tests/data_files/server5.key
index 844bb44..c8459ee 100644
--- a/tests/data_files/server5.key
+++ b/tests/data_files/server5.key
@@ -1,5 +1,5 @@
 -----BEGIN EC PRIVATE KEY-----
-MF8CAQEEGO82j8OXBoUhVyauCA8XZ288l595u7BXWqAKBggqhkjOPQMBAaE0AzIA
-BMtC4d2X4RMAYgvI5iXxIPDRsQg6hxLc/oT4GLN+4Q8/cEzqGPgiQ7RFHA3nYBQq
-ag==
+MHcCAQEEIPEqEyB2AnCoPL/9U/YDHvdqXYbIogTywwyp6/UfDw6noAoGCCqGSM49
+AwEHoUQDQgAEN8xW2XYJHlpyPsdZLf8gbu58+QaRdNCtFLX3aCJZYpJO5QDYIxH/
+6i/SNF1dFr2KiMJrdw1VzYoqDvoByLTt/w==
 -----END EC PRIVATE KEY-----