COMMUNICATION CONTENT AUDIT SUPPORTING SYSTEM

PROBLEM TO BE SOLVED: To provide a communication contents audit supporting system capable of auditing communication contents of an arbitrary cipher communication at an arbitrary time point. SOLUTION: The communication contents audit supporting system according to the present invention stores key information 3000 into a key management DB 201 after correlating with a key ID in every case when the key information 3000 to be used for the cipher communication is produced, while IP addresses of a user terminal 300 for performing the cipher communication using the key information 3000 and a service providing server 350 are stored into a communication state management DB 101 after correlating with the key ID, then a cipher packet to be transmitted by the cipher communication is stored into a packet DB 501 after correlating with an IP address of a transmission source of the cipher packet and an IP address of a destination. COPYRIGHT: (C)2008,JPO&INPIT