发明申请
US20100088515A1 SCRAMBLE KEY MANAGEMENT UNIT, SCRAMBLE KEY MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR SCRAMBLE KEY OUTPUT MANAGEMENT, SCRAMBLE KEY MANAGEMENT PROGRAM, LICENSE INFORMATION MANAGEMENT UNIT, LICENSE MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR LICENSE INFORMATION OUTPUT MANAGEMENT, AND LICENSE INFORMATION MANAGEMENT PROGRAM
有权
可控钥匙管理单元，可重复关键管理信息发送单元，可重复关键输出管理方法，可重复关键管理程序，许可信息管理单元，许可证管理信息发送单元，许可信息输出管理方法和许可信息管理程序
- 专利标题： SCRAMBLE KEY MANAGEMENT UNIT, SCRAMBLE KEY MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR SCRAMBLE KEY OUTPUT MANAGEMENT, SCRAMBLE KEY MANAGEMENT PROGRAM, LICENSE INFORMATION MANAGEMENT UNIT, LICENSE MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR LICENSE INFORMATION OUTPUT MANAGEMENT, AND LICENSE INFORMATION MANAGEMENT PROGRAM
- 专利标题（中）： 可控钥匙管理单元，可重复关键管理信息发送单元，可重复关键输出管理方法，可重复关键管理程序，许可信息管理单元，许可证管理信息发送单元，许可信息输出管理方法和许可信息管理程序
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申请号： US12596792申请日： 2007-04-20
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公开(公告)号： US20100088515A1公开(公告)日： 2010-04-08
- 发明人: Yusei Nishimoto , Satoshi Fujitsu , Syunji Sunasaki
- 申请人： Yusei Nishimoto , Satoshi Fujitsu , Syunji Sunasaki
- 申请人地址： JP Shibuya-ku
- 专利权人： Nippon Hoso Kyokai
- 当前专利权人： Nippon Hoso Kyokai
- 当前专利权人地址： JP Shibuya-ku
- 国际申请： PCT/JP2007/058646 WO 20070420
- 主分类号： H04L9/08
- IPC分类号： H04L9/08 ; H04L9/32
摘要：
A low cost scramble key management apparatus which enables to manage a scramble key based on individual contract information and to ensure security in narrow band broadcasting. The scramble key management apparatus 7 includes an ECM decoding unit 75 for decoding an ECM in which a scramble key and individual contract information are encrypted. The individual contract information includes contract information indicating contract statuses of a plurality of content receivers 3, 3, . . . which is arranged based on receiver IDs for identifying each of the content receivers 3. The scramble key management apparatus 7 includes a contract information obtaining unit 76b for obtaining the contract information of the content receiver 3 associated with the receiver ID from the individual contract information and a contract status determining unit 76c for determining the contract status and outputting the scramble key to a content decoder 5 if the contract status is under contract.
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