public function setSshKey($pp, $pca, $key)
    {
        if (!$pp)
            throw new BadMethodCallException('Missing parameter $pp (OVH cloud passport).');
        if (!$pca)
            throw new BadMethodCallException('Missing parameter $pca (PCA ServiceName).');
        if (!$key)
            throw new BadMethodCallException('Missing parameter $key (Public key for this pca).');
        $payload = array('sshkey' => $key);
        try {
            $this->put('cloud/' . $pp . '/pca/' . $pca, array('Content-Type' => 'application/json;charset=UTF-8'), json_encode($payload))->send();
        } catch (\Exception $e) {
            throw new CloudException($e->getMessage(), $e->getCode(), $e);
        }
    }