DATA TRANSACTION SYSTEM, DATA TRANSACTION METHOD AND DATA TRANSACTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a data transaction system, a data transaction method and a data transaction program, which prevent data to be transacted from being plagiatized through a network.;SOLUTION: Transaction is performed without storing onerous data used as a transaction object in the data transaction system in a storage area M1 of an intermediary server. Namely, though the intermediary server which can be access by the unspecified number of users has high danger of unauthorized access, the onerous data is prevented from being plagiaizedby directly transmitting the onerous data and without storing the onerous data in the storage area M1.;COPYRIGHT: (C)2005,JPO&NCIPI