| 摘要 |
PROBLEM TO BE SOLVED: To provide an information processing device that can maintain serial properties of digital information that is produced serially. SOLUTION: An information processing device includes a digital information producing means (scan control section 16) for serially producing pieces of digital information (electronic document); identifier assigning means (time-stamp processing section 18, scan counter 17) for assigning identifiers differing for each piece of the first digital information, to the respective produced pieces of the first digital information; attribute setting means (time-stamp processing section 18, format processing section) for making setting, such that an identifier is included in an attribute of each piece of the first digital information; and electronic signing implementation means (PKI processing section) for giving electronic signature to the digital information piece, for which the attribute including an identifier assigned to each piece of the first digital information is set. COPYRIGHT: (C)2009,JPO&INPIT |
