Inter-client communication log management system

摘要

A system is provided that includes session management servers which mediate a secure communication performed between communication apparatuses. The session management servers create and maintain communication logs for recording at a start and end of the secure communication. The system includes log management servers which manage the communication logs of the secure communication. The communication source apparatus, the communication destination apparatus and the session management servers transmit their own communication logs to the corresponding log management server in the same domain to which they belong. One of the log management servers obtains those communication logs from the others based on a request and performs verification of consistency among them. Accordingly, it is possible to create reliable communication logs of the secure communication performed between the communication source apparatus and the communication destination apparatus.