ey from #key_file in it.
 * The caller is responsible for destroing returned keys manager using
 * @xmlSecKeysMngrDestroy.
 *
 * Returns the pointer to newly created keys manager or NULL if an error
 * occurs.
 */
xmlSecKeysMngrPtr 
load_rsa_keys(char* key_file) {
    xmlSecKeysMngrPtr mngr;
    xmlSecKeyPtr key;
    
    assert(key_file);
    
    /* create and initialize keys manager, we use a default list based
     * keys manager, implement your own xmlSecKeysStore klass if you need
     * something mor