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Server/client system for managing the transmission and use of copyrighted content, information processing unit, information processing method, and computer program
Server/client system for managing the transmission and use of copyrighted content, information processing unit, information processing method, and computer program
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机译:用于管理版权内容的传输和使用的服务器/客户端系统,信息处理单元,信息处理方法和计算机程序
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摘要
A method of information processing in a server/client system including a server for storing content and a client for receiving from the server and storing copy content of the content stored in the server. The method includes the steps of: the server generating at least either a content-ID list storing content-IDs corresponding to content for which use-expiration-date updating is permitted out of the copy content stored in the client or a content-ID list storing content-IDs corresponding to content for which use-expiration-date updating is not permitted, transmitting the content-ID list to the client; and the client selectively performing update processing of use-expiration date out of the copy content stored in that client or invalidation processing of the copy content stored in that client based on the content-ID list received from the server.
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