Patent ID: 8139248

Claim:
An information distribution system which distributes information data to a user terminal apparatus from a distribution center apparatus via a communication line, wherein the distribution center apparatus separately manages to each store information data encrypted with a prescribed key and the key in advance, distributes information data required from the user terminal apparatus in an encrypted state, requires to the user terminal apparatus to present medium proper identification information stored in an information storage medium having proper identification information, and encrypts to distribute the key itself used for encrypting the information data by using the medium proper identification information presented in response to the request, and the distribution center apparatus comprises: a user management unit which generates and registers user individual management information including use conditions of distributed information data by associating it with user information registered in advance; a material data accumulator which accumulates material data to print information related to the information data onto a label print surface of the information storage medium; a request accepting unit which accepts a request for print information for the distributed information data to be transmitted from the user terminal apparatus together with the medium proper identification information; an image generation unit which reads the user individual management information from the user management unit as well as reads the corresponding material data from the material data accumulator in accepting the request for the print information to generate a print image in a prescribed form; and a transmitting unit which transmits the print image to the user terminal apparatus at a request source of the print information, and wherein the user terminal apparatus decrypts an encrypted key received from the distribution center apparatus by using the medium proper identification information presented to the distribution center apparatus, and decrypts the encryption of the distributed information data with the decrypted key, and the user terminal apparatus comprises: a communication unit which transmits, to the distribution center apparatus, the request for the print information of the distributed information data together with the medium proper identification information, and receives the print image to be transmitted from the distribution center apparatus; an accumulator which accumulates the print image received by the communication unit; and a print unit which prints the print image onto a label print surface of the information storage medium.