ELECTRONIC DATA SPLIT AND HOLDING DEVICE, ELECTRONIC DATA SPLIT AND HOLDING SYSTEM, AND ELECTRONIC DATA SPLIT AND HOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an electronic data split and holding device, an electronic data split and holding system and an electronic data split and holding method which can split data and save it in a mobile terminal, and limit a storage medium of data after split.;SOLUTION: The electronic data split and holding device has a card Ca and Cb, a terminal T, an input interface I and external software S. The input interface I transmits data of password to the terminal T when a password is entered from an owner of the card Ca, Cb. The external software S performs control of each process in the terminal T. In the card Ca and Cb, an electronic certificate, a public key and a private key are stored, and the data in the card can be read/written from the terminal T.;COPYRIGHT: (C)2008,JPO&INPIT