Abstract: A technique for readily concealing confidential information contained in document data can be offered. An information processing apparatus according to an embodiment includes: a document data acquisition part configured to acquire first document data including sentences that contain character information; a sentence separation part configured to separate the first document data into sentences; a concealment target determination part configured to determine whether or not each of the sentences included in the first document data is a concealment target, in accordance with a preset rule; a concealment processing part configured to execute a concealment process upon the sentence when the sentence is determined to be a concealment target; and an output part configured to output second document data including a sentence obtained by executing the concealment process by the concealment processing part.

Abstract: A communication control apparatus connected to two terminals and to a relay apparatus that relays P2P communication performed between the two terminals, including: storage means configured to store authority information including a communication method of the P2P communication permitted for each of the two terminals; reception means configured to receive a signaling signal mutually transmitted between the two terminals; and control means configured to control the communication method of the P2P communication based on the authority information when receiving the signaling signal.

Abstract: A communication control apparatus connected to two terminals and to a relay apparatus that relays P2P communication performed between the two terminals, including: storage means configured to store authority information including a communication method of the P2P communication permitted for each of the two terminals; reception means configured to receive a signaling signal mutually transmitted between the two terminals; and control means configured to control the communication method of the P2P communication based on the authority information when receiving the signaling signal.

Abstract: A communication control apparatus connected to two terminals and to a relay apparatus that relays P2P communication performed between the two terminals, including: storage means configured to store authority information including a communication method of the P2P communication permitted for each of the two terminals; reception means configured to receive a signaling signal mutually transmitted between the two terminals; and control means configured to control the communication method of the P2P communication based on the authority information when receiving the signaling signal.