Information processing device and information processing program

摘要

An information processing device has a long-term registration system and a long-term signature system. The long-term registration system receives original data, sets attribute information with respect to the acquired original data, and associates the acquired original data with the set attribute information. The long-term signature system acquires long-term signature data obtained by performing a long-term signature on the associated original data and attribute information.

主权项

1. An information processing device comprising:
an original data acquisition circuit for acquiring original data; a setting circuit for setting attribute information with respect to the acquired original data; an association circuit for associating the acquired original data with the set attribute information; a computing circuit for computing an attribute value original hash value comprised of a file name of the acquired original data, a hash value of the acquired original data, a file name of the set attribute information, and a hash value of the set attribute information; and a long-term signature data acquisition circuit for acquiring an electronic signature value relevant to the computed attribute value original hash value, acquiring a time stamp issued by a time stamp server for the acquired electronic signature value, and acquiring verification information issued by a repository server for verifying the acquired electronic signature value and the acquired time stamp.