AUTHENTICATION OF DISTRIBUTED MOTION IMAGE DATA USING DATA STRUCTURES

摘要

A motion image distribution system includes a server and a use terminal. The server generates a feature quantity table CHT1 representing a data structure of motion image encoded data VDE, and authenticates the motion image encoded data VDE by using the generated feature quantity table CHT1. Then, the server transmits the motion image encoded data VDE and the feature quantity table CHT1 to the user terminal. The user terminal generates a feature quantity table CHT2 representing a data structure of the received motion image encoded data VDE, and authenticates received motion image encoded data VDE by using the generated feature quantity table CHT2. Then, the user terminal plays back the motion image encoded data VDE and outputs motion image playback information.

主权项

1. A method comprising:
generating, by a computing device, a first data structure representing structure information for motion image encoded data, wherein the first data structure comprises at least three types of data associated with the motion image encoded data; determining, by the computing device, that the first data structure matches at least one of a plurality of data structures registered on the computing device, wherein the determining comprising determining that the at least three types of data of the first data structure matches at least three corresponding types of data in the at least one of the plurality of data structures; in response to the determining, authenticating, by the computing device, the motion image encoded data as regular data using the first data structure; and transmitting, by the computing device, the first structure information and the motion image encoded data to a user terminal for authentication of motion image encoded data at the user terminal.