| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for applying a redactable signature method capable of verification even after deletion (blacking-out) of a part of a signed electronic document to spreadsheet data. <P>SOLUTION: By giving an ID for a redactable signature to a cell to be processed in processed data by a spreadsheet program, which part in the file corresponds to the cell to be processed can be easily determined when the data is outputted as a file. <P>COPYRIGHT: (C)2009,JPO&INPIT |
