CONTENT SHARING SYSTEM, CONTENT PROCESSING APPARATUS, INFORMATION PROCESSING APPARATUS, PROGRAM, RECORDING MEDIUM AND CONTENT SHARING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a content sharing system that can efficiently execute copyright management for limiting illegal utilization of content and can increase flexibility of content utilization within a legal range of private utilization.

SOLUTION: In the content sharing system, a content processing apparatus on a content providing side comprises a source ID addition part 1 for adding to content data a source ID that is an ID identifying the content data providing source. A content processing apparatus on a content acquiring side comprises a content reproduction part 2 having a reproduction permission ID list L that is a list of source IDs permitting content data reproduction, and for limiting the reproduction of acquired content data according to the source ID added to the acquired content data and the reproduction permission list. A list management part 3 is further provided to permit update of the reproduction permission ID list.

COPYRIGHT: (C)2005,JPO&NCIPI