DATA MULTISTEP REFERENCE CONTROLLING METHOD AND DATA MULTISTEP REFERRING SYSTEM

摘要

PROBLEM TO BE SOLVED: To refer to only a specific part according to the step of referring processing of a data user according to a charging amount by acquiring the charging amount corresponding to a ciphering key transferred to a device on the side of a data user from a table to manage by each device on the user side or by each user identification information. ;SOLUTION: The ciphered data provided by a provider is transferred to a computer system 102 of a data user by a data transfer part 107 and stored in an auxiliary storing device 113. Next, the data user inputs a key request transmitting instruction from a terminal device 114 and transmits a request to the data provider through a network 103. A computer system 101 of the provider retrieves a group of partial data for which the key request has been made from the table and transmits data on the ciphering key at the time of ciphering the group of partial data to the user. The deciphering system 110 of the system 102 of the data user deciphers ciphering data with ciphering key data.;COPYRIGHT: (C)2000,JPO