Use 2K RSA and SHA256 in tests

Reviewed-by: Andy Polyakov <appro@openssl.org>
diff --git a/test/P2ss.cnf b/test/P2ss.cnf
index 8b50232..d530e31 100644
--- a/test/P2ss.cnf
+++ b/test/P2ss.cnf
@@ -7,11 +7,11 @@
 
 ####################################################################
 [ req ]
-default_bits		= 1024
+default_bits		= 2048
 default_keyfile 	= keySS.pem
 distinguished_name	= req_distinguished_name
 encrypt_rsa_key		= no
-default_md		= md2
+default_md		= sha256
 
 [ req_distinguished_name ]
 countryName			= Country Name (2 letter code)