Sophia Co., Ltd.

Yukio Fujimoto

Mutsumi Fujihara

Data exchange sectionhas a step of determining whether or not pairs of the transmission selecting conditions and reception selecting conditions satisfy a standard for exchanging, through a determined pair, data between a transmission user who corresponds to a transmission selecting condition in the determined pair and a reception user who corresponds to a reception selecting condition in the determined pair. Data exchange systemexchanges data satisfying both the transmission selecting condition and the reception selecting condition in the determined pair between the transmission user and the reception user, respectively corresponding to the transmission selecting condition and the reception selecting condition in the determined pair.

Data exchange system and data exchange method

Data management security against leakage or loss of personal information is achieved by setting a division range for dividing personal information into identification information that enables a specific individual to be identified and attribute information that does not by itself enable a specific individual to be identified. A CPU performs first division of personal information into identification information and attribute information in accordance with the division range specified by the user, performs second division of identification information that has undergone first division into a plurality of fragments for which data processing is possible, and furthermore generates linkage key information for restoring the divided identification information, attribute information, and plurality of fragments to the original personal information, and executes data storage processing that stores the identification information, attribute information, and plurality of fragments in an external storage apparatus and linkage key information in a nonvolatile auxiliary storage apparatus.

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Tokyo, Japan

Yukio Fujimoto