Invention Grant
- Patent Title: Information processing device, information recording medium and information processing method, and computer program
- Patent Title (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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Application No.: US10595960Application Date: 2005-11-15
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Publication No.: US07661000B2Publication Date: 2010-02-09
- Inventor: Kenjiro Ueda , Katsumi Muramatsu , Tateo Oishi , Motoki Kato
- Applicant: Kenjiro Ueda , Katsumi Muramatsu , Tateo Oishi , Motoki Kato
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JPP2004-353637 20041207
- International Application: PCT/JP2005/020968 WO 20051115
- International Announcement: WO2006/061976 WO 20060615
- Main IPC: G06F12/14
- IPC: G06F12/14 ; H04L9/00 ; H04N7/167
Abstract:
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.
Public/Granted literature
Information query
