* @param string $uri Uniform Resource Identifier
* @param string $keyhash encoded key
* @return mixed
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function getKey($uri, $keyhash)
{
* @param string $url url
* @param string $slap slap
* @return integer
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function slapper($owner, $url, $slap)
{
/**
* @param string $pubkey public key
* @return string
+ * @throws \Exception
*/
public static function salmonKey($pubkey)
{