Patent ID: 8549306

Claim:
An image managing method for managing an original moving image and a still image included in the original moving image together as a pair, comprising: in the case of generating a signature of original moving image information dividing the original moving image into a header and a body and generating a group hash value (H1) of a header portion, generating a hash value (B#) of each piece of still image data, connecting the hash value (H1) of the header portion and the hash value (B#) of each piece of still image data to generate each connected hash value (J1#), generating a group of connected hash values (J1#) as a hash value list (L1), generating a 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 value list (L1) as verification data of the original moving image, by adding a digital signature of a video recording terminal to it.