IMAGE MANAGING METHOD, IMAGE MANAGING PROGRAM, AND IMAGE MANAGING SYSTEM

摘要

In order to prove to a third party that no alteration has been made to a moving image and that the moving image can be reproduced when a portion of the moving image is cut out, an image managing method includes dividing the original moving image into a header and a body and generating the group hash value (H1) of the header portion, generating the hash value (B#) of each item of still image data, connecting the group hash value (H1) of the header portion and the hash value (B#) of each item of still image data to generate connected hash values (J1#), generating a group of the connected hash values (J1#) as a hash value list (L1), generating the hash value (T) of a Huffman table on the basis of cutting out one still image, and signing to generate signature information of the original moving image, using the group hash value (H1) of the header portion, the hash value (T) of the Huffman table, and the hash list (L1) as verification data of the original moving image, by adding a digital signature of a video recording terminal to it.