add_key (file, group_name, key_name, type_name, sample);
add_key (file, group_name, key_name, type_name);
add_key (file, group_name, key_name);

hide_key (file, group_name, key_name);
restore_key (file, group_name, key_name);

delete_key (file, group_name, key_name);
