| 摘要 |
PROBLEM TO BE SOLVED: To provide data management technique certifying continuity of a file in which data generated continuously in time series are stored. SOLUTION: With respect to data generated continuously, data including previous data and present data are built, data obtained by giving a digital signature to each of the data are stored in a keeping file by additional writing, the perfectness of the data is verified by verifying the digital signature of the stored data, the coincidence of the present data of the stored data and the previous data of present stored data is detected to inspect the continuity of the stored data. |
