Invention Grant
US08724807B2 Method for etching and secure distribution of digital data, access device and writer
失效
数字数据蚀刻和安全分配方法,访问设备和写入器
- Patent Title: Method for etching and secure distribution of digital data, access device and writer
- Patent Title (中): 数字数据蚀刻和安全分配方法,访问设备和写入器
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Application No.: US12083279Application Date: 2006-10-17
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Publication No.: US08724807B2Publication Date: 2014-05-13
- Inventor: Jean-Louis Diascorn , Alain Durand , Sylvain Lelievre
- Applicant: Jean-Louis Diascorn , Alain Durand , Sylvain Lelievre
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agency: Tutunjian & Bitetto, P.C.
- Priority: FR0510566 20051017
- International Application: PCT/FR2006/002328 WO 20061017
- International Announcement: WO2007/045756 WO 20070426
- Main IPC: G06F21/00
- IPC: G06F21/00 ; H04K1/00

Abstract:
The invention relates to a method of receiving and securely recording digital data comprising a step for recording said digital data on a secured disk by a recorder/receiver belonging to a determined secured domain comprising several equipment items and defined by an identifier, a step for recording on the secured disk the identifier of the domain of the recorder/receiver to define this domain as the only domain in which the reproduction/copying of the multimedia content is authorized, wherein it comprises a prior step for recovering a disk key from the secured disk, and in that the domain identifier is encrypted by said disk key and the digital data is scrambled by title keys, said title keys being encrypted by said disk key. The invention also relates to a method of securely distributing digital data, an access device and a recorder/receiver.
Public/Granted literature
- US20090070600A1 Method for Etching and Secure Distribution of Digital Data, Access Device and Writer Public/Granted day:2009-03-12
Information query