Jose\Algorithm\KeyEncryption\AESKW::wrapKey PHP Method

    public function wrapKey(JWKInterface $key, $cek, array $complete_headers, array &$additional_headers)
    {
        $this->checkKey($key);
        $wrapper = $this->getWrapper();
        return $wrapper->wrap(Base64Url::decode($key->get('k')), $cek);
    }