COMMUNICATION MONITORING AND INSPECTING SYSTEM UTILIZING META-INFORMATION, COMMUNICATION MONITORING AND INSPECTING METHOD, AND RECORDING MEDIA WITH THESE METHODS RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To guarantee the contents and attributes of communications and monitor and inspect communications when transmitting and receiving information by communications. SOLUTION: When a WWW browser 1 transmits an HTTP(horizontal tabulation test program) message to a meta-information management gateway 3, the secret and information opened to the public on communication contents and attributes is transmitted. The meta- information management gateway 3 generates meta-information from this information, make the meta-information not opened to the public correspond to meta-information opened to the public, stores them on a database, adds the meta-information opened to the pubic to the HTTP message, and transmits them to an information management gateway 4. The meta-information management gateway 4 verifies the meta-information opened to the public, stores it on a database, removes the meta-information opened to the public from the HTTP message, and transmits it to a WWW server 2. If there is a problem on the communication contents and attributes, an inquiry is sent to the meta-information management gateway 3 with the meta-information opened to the public, and a transmitter or the like is specified from the corresponding meta-information not opened to the public.