| 摘要 |
PROBLEM TO BE SOLVED: To improve a security level by preventing illegal access to an AP (Application) server in an application service system accompanied by a SIP (Session Initiation Protocol) session. SOLUTION: When a client 100 transmits an SIP session establishment request, a line authentication system 300 confirms the validity of SIP authentication information based on a circuit identifier, and transfers it to a server system 200. A session management server 210 of the server system 200 generates service session information for identifying a service session based on the SIP session establishment request, and obtains service authentication information corresponding to the SIP authentication information. When the client 100 transmits the service session establishment request, an AP server 220 performs user authentication by using the service session information and service authentication information. COPYRIGHT: (C)2009,JPO&INPIT |
