Abstract: A client server network (10) has a number of clients (12, 14,16), each having a client transform generator (18, 20, 22). The clients (12, 14,16) transmit a number of messages each of which contains an address (38, 54) and a confirmer (40, 56). The clients (12, 14, 16) are all connected to a communication network (24, 26) that carries the messages. A server (28) has a server transform generator (44) and is coupled to the communication network (24, 26). The server (28) receives the messages containing the address (38, 54) and the confirmer (40, 56).