| 摘要 |
PROBLEM TO BE SOLVED: To reduce time associating image data with signature data concerning image processing generating image data with electronic signature data for e.g. an authorization guarantee (manipulation and source certificate). SOLUTION: Image data is input (S101), a characteristic amount of the image data is calculated (S102), a generation request of electronic signature data and a characteristic amount are transmitted to a signature server (S103), the signature data is received from the signature server (S104), received signature data is verified (S105), and image data with an electronic signature which is image data to which signature data is attached is generated when the verified result indicates that the image data is correct signature data (S106). COPYRIGHT: (C)2006,JPO&NCIPI
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