| http://www.w3.org/ns/prov#value | - Therefore, there is a problem in that any user, regardless of being registered in the certificated server, can transmit and receive the multicast data. [0009] Furthermore, in multicast data communication, one problem is raised in that at the present time, the sender cannot identify users who transmit and receive the multicast data, and therefore, the sender cannot answer to users individually.
|
