protected function getFields(): array
    {
        $fields = $this->getConfig('fields');
        $defaults = [
            'decrypt' => false,
        ];
        $result = [];
        foreach ($fields as $field => $values) {
            if (is_numeric($field)) {
                $field = $values;
                $values = [];
            }
            $values = array_merge($defaults, $values);
            $result[$field] = $values;
        }

        return $result;
    }