Net_SSH2::_generate_identifier PHP Method

    function _generate_identifier()
    {
        $identifier = 'SSH-2.0-phpseclib_1.0';
        $ext = array();
        if (extension_loaded('openssl')) {
            $ext[] = 'openssl';
        } elseif (extension_loaded('mcrypt')) {
            $ext[] = 'mcrypt';
        }
        if (extension_loaded('gmp')) {
            $ext[] = 'gmp';
        } elseif (extension_loaded('bcmath')) {
            $ext[] = 'bcmath';
        }
        if (!empty($ext)) {
            $identifier .= ' (' . implode(', ', $ext) . ')';
        }
        return $identifier;
    }