- Changed the used random function pointer to more flexible format. Renamed havege_rand() to havege_random() to prevent mistakes. Lots of changes as a consequence in library code and programs

diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index e33cead..3174599 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -105,7 +105,7 @@
         goto exit;
     }
 
-    if( ( ret = rsa_pkcs1_sign( &rsa, havege_rand, &hs, RSA_PRIVATE, SIG_RSA_SHA1,
+    if( ( ret = rsa_pkcs1_sign( &rsa, havege_random, &hs, RSA_PRIVATE, SIG_RSA_SHA1,
                                 20, hash, buf ) ) != 0 )
     {
         printf( " failed\n  ! rsa_pkcs1_sign returned %d\n\n", ret );