Information Authentication Gateway, Information Acquisition System Using the Information Authentication Gateway, and Information Acquisition Method

摘要

It is possible to provide an information authentication gateway used when acquiring information on an object according to hierarchical position information contained in an information code attached to the object. The information authentication gateway includes: metadata storage means for storing metadata indicating an entire hierarchical structure in which basic semantic units are shown; hierarchical position information acquisition means for reading an information code attached to an object by a reader and receiving hierarchical information included therein from a user terminal capable of transmitting/receiving information to/from the reader; information comparison means for performing a comparison to decide whether the received hierarchical position information is included in the metadata stored in the metadata storage means; and ticket issuing means used when the information comparison means indicates that the information is included, for passing information required to access a server storing the information corresponding the hierarchical position information to the user terminal.