| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a digital signature device, a digital signature method and a computer program, which perform digital signature to record groups on a database. <P>SOLUTION: Specification of a record group for the digital signature is accepted (S11) from among records stored in the database, the corresponding record group is retrieved from the database (S12), and a retrieval result is output in a dump format (S13). A hash value is calculated from the output retrieval result in the dump format (S14), the calculated hash value is stored in a digital signature management table (S15). <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
