发明申请
- 专利标题： Information processing device, information recording medium and information processing method, and computer program
- 专利标题（中）： 信息处理装置，信息记录介质和信息处理方法以及计算机程序
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申请号： US10595960申请日： 2005-11-15
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公开(公告)号： US20070098167A1公开(公告)日： 2007-05-03
- 发明人: Kenjiro Ueda , Katsumi Muramatsu , Tateo Oishi , Motoki Kato
- 申请人： Kenjiro Ueda , Katsumi Muramatsu , Tateo Oishi , Motoki Kato
- 优先权： JP2004-353637 20041207
- 国际申请： PCT/JP05/20968 WO 20051115
- 主分类号： H04N7/167
- IPC分类号： H04N7/167
摘要：
A configuration is provided which improves scrambling processing of content and eliminates unauthorized use of content. Scramble rules which differ for each content are used for content scrambling processing. For example, in the event of using shuffling processing, various shuffle states are specified as scramble rules. In the event of using Exclusive-OR processing, a value applicable to EXOR is specified as the scramble rule. Also, in the event of using rotation processing, a shift amount is specified as the scramble rule. In the event of using 32 shuffle elements in shuffling processing, 32! different shuffle states, that is to say, 32! different scramble rules can be specified. Also, the values for EXOR or the rotation shift amount can be set as various values, and many scramble rules can be set.
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