Patent ID: 7469263
Filing Date: 2008-12-23
Classification: G06F,Y10S

Abstract:
1. A content management system for archiving content as electronic data and managing an original, comprising: a management device for managing histories of a content registration processing and a content revision processing; and a storage unit provided in said management device; and a portable medium for containing the content, that is removably attached to the management device and has a media ID, wherein the management device, on register request from an external device, registers the content on the portable medium and stores a processing history of said registration processing and the media ID for the content in relation to each other into said storage unit; and on update request from said external device, stores revised content from said external device on the portable medium and stores a processing history of said revision processing and the media ID for the content in relation to each other into said storage unit, wherein the portable medium containing the content is removed from the management device while the processing history and the media ID remain in the management device; wherein the management device creates a registration certificate in response to the registration and revision of the content, stores a result together with the content on the portable medium, issues said registration certification to said external device, determines a validity of the registration certificate from the external device, and allows access to the content of the portable medium; wherein the management device stores the result as content management information, and allows the content processing history to be read; and wherein the management device encrypts the content in response to a content storage, encrypts the encryption key with the media ID, and stores the encrypted content and encrypted encryption key on the portable medium of the media ID.