| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems in a conventional device that it is difficult for a data former to distribute data while retaining an access right given to the data, and the access right cannot be set or complied, provided that performing a designated procedure. SOLUTION: The data management device 100 comprises a data input and output API hook part 107 for adding interruption processing to data input and output processing in the OS of a computer; a deletion access determination part 101 for determining the propriety of deletion of data; a write access determination part 102 for determining the propriety of write of data; a write management information mask part 103 for shielding management information; a write completion detection part 104; a management information generation part 105 for generating management information conformed to write, read and deletion of data; a management information write-in part 106 for recording the management information; a read completion detection part 108; a read management information mask part 109; and a read access determination part 110 for determining the propriety of read of data. COPYRIGHT: (C)2004,JPO |
