Another night's work - move to ECDH + AES256 from RSA pubkey

pass-1/util.h

@@ -1,10 +1,14 @@
 #ifndef _UTIL_H_
-#define _UTIL_H
+#define _UTIL_H_
+
+#include "rlocs.h"
 
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 
+#include <openssl/sha.h>
+
 #define info(msg, ...) { fprintf( stdout, msg, ##__VA_ARGS__ ) ; fprintf( stdout, "\n" ); }
 #define warn(msg, ...) { fprintf( stderr, msg, ##__VA_ARGS__ ) ; fprintf( stderr, "\n" ); }
 
@@ -31,6 +35,8 @@ int session_setup( struct session *session, char *config_file, char *listen_if,
 int session_upgrade_rlocs( struct session *session, int argc, char** args );
 void session_teardown( struct session *session );
 
+int sha256sum( unsigned char *src, size_t src_len, unsigned char dst[SHA256_DIGEST_LENGTH] );
+
 
 
 #endif