CONTENT DISTRIBUTION SYSTEM, CONTENT USE MANAGING SERVER, DEVICE INCLUDING CONTENT REPRODUCTION PERMISSION DATA MANAGEMENT KEY STORAGE MEANS, INFORMATION PROCESSOR TO WHICH CONTENT REPRODUCTION PERMISSION DATA MANAGEMENT KEY STORAGE MEANS IS CONNECTED, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a content distribution system that enables different equipment to reproduce the same contents once a license is obtained.;SOLUTION: The content distribution system is constituted including a content use managing server 100, a license issue server 200, and a client 300 to which a secure chip 400 is connected. The content use managing server 100 includes a license management key management section 140 which issues a license management key for decoding the license to the secure chip 400, and the client 300 to which the secure chip 400 is connected deciphers the license by a license deciphering section 465 on condition that the same license is not present in a license management section 450.;COPYRIGHT: (C)2007,JPO&INPIT