| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a communication processing system for effectively performing secure communication processing with mobile terminals via networks. SOLUTION: A server device is provided which serves shared keys used for encryption and decoding of data between communication terminals, and information on a current position on a network of a communicating party. The server device generates a session key to serve to the communication terminal and has a database having positioning information of mobile terminals stored thereon, and based on a responder specification data from an initiator, performs an inquiry to a DNS server if the specification is by name address, searching the database based on an IP address acquired from a DNS server to acquire update positioning information of a responder, and encrypts the session key and address data of the responder to notify the initiator of it.</p> |
