Importance

Loading Importance Indicators...

Abstract

When reproducing content, a client reads attribute information defined in the header of content data corresponding to a content ID specified by a user. When the read attribute information meets an attribute condition defined in a license stored in a storage unit defining the attribute condition, the encrypted content data is decrypted and output. After the content is distributed, a collected edition or a best edition can be newly released without creating new content by issuing the license having an attribute condition that limits, for example, a release data and an artist. Defining a license with a specific subscription ID as the attribute condition allows the user with the license to use new release content with the subscription ID without additional purchase of a license.

Loading the Abstract Image...

First Claim