Patent ID: 8396805

Claim:
A management device for providing a license to information processing devices to use encrypted content, the management device comprising: a registering unit that issues a first key to a first information processing device, said first key corresponding to a first digital rights management (DRM) service compatible with the first information processing device, in response to a request for registration with the first DRM service from the first information processing device, and issues a second key to a second information processing device in response to a request for registration with a second digital rights management (DRM) service from the second information processing device, said second key corresponding to the second DRM service compatible with the second information processing device, the first information processing device and the second information processing device being different types of information processing devices from each other; a storage device that stores an apparatus ID of the first information processing device, an apparatus ID of the second information processing device, the first key, and the second key used for the second DRM service in association with a common user ID which indicates a user that commonly owns the first information processing device and the second information processing device; and a composite license issuing unit that generates a composite license corresponding to the common user ID based on the first key, and the second key being stored on the storage device in association with the common user ID, and issues the composite license to the first information processing device, the composite license including a first license and a second license, the first license including first encrypted data, which is a content key to decrypt the encrypted content and that is encrypted with the first key, and the second license including second encrypted data, which is a content key to decrypt the encrypted content and that is encrypted with the second key, the first license being formatted for the first DRM service but not the second DRM service and being compatible with the first information processing device, the second license being formatted for the second DRM service and not the first DRM service and being compatible with a second information processing device.