Adapt programs / test suites to _init() and _free()
diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index c2fdbbf..8bb184f 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -84,6 +84,7 @@
 
     memset( &rsa, 0, sizeof( rsa ) );
     memset( &dhm, 0, sizeof( dhm ) );
+    aes_init( &aes );
 
     /*
      * 1. Setup the RNG
@@ -280,6 +281,7 @@
     if( client_fd != -1 )
         net_close( client_fd );
 
+    aes_free( &aes );
     rsa_free( &rsa );
     dhm_free( &dhm );
     entropy_free( &entropy );