Rename x509parse_key & co with _rsa suffix
diff --git a/programs/pkey/rsa_sign_pss.c b/programs/pkey/rsa_sign_pss.c
index 8238708..e848f54 100644
--- a/programs/pkey/rsa_sign_pss.c
+++ b/programs/pkey/rsa_sign_pss.c
@@ -101,7 +101,7 @@
 
     rsa_init( &rsa, RSA_PKCS_V21, POLARSSL_MD_SHA1 );
 
-    if( ( ret = x509parse_keyfile( &rsa, argv[1], "" ) ) != 0 )
+    if( ( ret = x509parse_keyfile_rsa( &rsa, argv[1], "" ) ) != 0 )
     {
         ret = 1;
         printf( " failed\n  ! Could not open '%s'\n", argv[1] );