--- gvpe/src/global.h	2013/07/16 16:44:36	1.27
+++ gvpe/src/global.h	2013/07/17 04:36:03	1.28
@@ -69,6 +69,9 @@
 
 #define SEED_SIZE	64 // how many octets to seed rng with
 
+#define HKDF_XTR_HASH	EVP_sha512
+#define HKDF_PRF_HASH	EVP_sha256
+
 #define HKDF_SALT	32
 #define IKM_SIZE	32