| 摘要 |
An information processing apparatus (203) comprising, a first generation unit (301) adapted to generate data to be signed (902, 903) by dividing a digital document into regions, a second generation unit (301) adapted to generate first digest values (906, 908) of the data to be signed and identifiers (905, 907) used to identify the data to be signed, a third generation unit (301) adapted to generate signature information (901) based on a plurality of the first digest values and the identifiers obtained from the digital document, and a fourth generation unit (301) adapted to generate a first signed digital document (411) based on the signature information and the data to be signed. |
