CONTENTS DISTRIBUTION SYSTEM, INFORMATION PROCESSOR OR INFORMATION PROCESSING METHOD AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To allow a user who has temporarily received a license to use contents ranging over a plurality of pieces of equipment by preventing the unauthorized use of the contents.

SOLUTION: An environment where a copyright is managed is provided to separately deal with the encrypted contents and a license for decoding the cipher. Also, each client is able to legally use the contents. After the contents acquired by a client A are stored in a client B, the license is newly received from a server by the client B so that it is possible to share the contents between the clients A and B while securing the protection of the contents.

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