| 摘要 |
<p>In a client terminal (3), signature verification processing is conducted by a signature verification part (341) on the basis of image data and its signature ID sent from an image storage apparatus (2) to respectively judge from the verification result whether there is a possibility that the signature is altered and whether there is a possibility that a public key is not right. Then, a message expressing the judgment result or a mark or symbol in place of the message is generated by a verification result display control module (343) and superimposed on the image data to be displayed on a display device (36). Moreover, verification results of respective frames constituting one image data stream are stored in a storage module (32) by a storage control module (33), and the list of the stored verification results is displayed on the display device (36) as a report dialog by the verification result display control module (343).</p> |
