Patent ID: 7890775
Filing Date: 2011-02-15
Classification: G06F

Abstract:
1. An information processing apparatus, to which a storage medium is connectable, the medium storing a content key of an encrypted content and a copy control list comprising information indicating apparatuses which are copying destinations of the encrypted content, the apparatus comprising: an interface for connecting to the storage medium; a module configured to save the content key in the medium; a module configured to select one of destinations from a list of connection destinations; and a module configured to update the copy control list stored in the medium by creating a copy schedule flag relating to an apparatus corresponding to the one of the destinations selected by the select module, wherein the copy control list further comprises information identifying the medium, the copy schedule flag, and a copy-finished flag; the medium further stores a list of connection destinations of the medium; and the information processing apparatus further comprises: a module configured to detect that encrypted content is stored in the medium; a module configured to copy an encrypted content to the medium, to clear the copy schedule flag of the apparatus and the medium in the copy control list of the encrypted content, and to set a copy-finished flag when copy schedule flags of other apparatuses are set in the copy control list of the encrypted content, the encrypted content is stored in the apparatus, and it is not detected that encrypted content is stored in the medium; and a module configured to copy the encrypted content to the apparatus, to clear the copy schedule flag of the apparatus in the copy control list of the encrypted content, and to set a copy-finished flag when the copy schedule flag of the apparatus is set in the copy control list of the encrypted content and it is detected that encrypted content is stored in the medium.