diff -r f07b855afbb2 Lib/test/dh1024.pem
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib/test/dh1024.pem	Wed Apr 01 22:52:44 2015 +0200
@@ -0,0 +1,7 @@
+-----BEGIN DH PARAMETERS-----
+MIGHAoGBAIbzw1s9CT8SV5yv6L7esdAdZYZjPi3qWFs61CYTFFQnf2s/d09NYaJt
+rrvJhIzWavqnue71qXCf83/J3nz3FEwUU/L0mGyheVbsSHiI64wUo3u50wK5Igo0
+RNs/LD0irs7m0icZ//hijafTU+JOBiuA8zMI+oZfU7BGuc9XrUprAgEC
+-----END DH PARAMETERS-----
+
+Generated with: openssl dhparam -out dh1024.pem  1024
diff -r f07b855afbb2 Lib/test/test_ssl.py
--- a/Lib/test/test_ssl.py	Wed Apr 01 18:48:58 2015 +0200
+++ b/Lib/test/test_ssl.py	Wed Apr 01 22:52:44 2015 +0200
@@ -64,7 +64,7 @@
 NOKIACERT = data_file("nokia.pem")
 NULLBYTECERT = data_file("nullbytecert.pem")
 
-DHFILE = data_file("dh512.pem")
+DHFILE = data_file("dh1024.pem")
 BYTES_DHFILE = os.fsencode(DHFILE)