Invention Grant
- Patent Title: Secure pre-recorded digital medium
- Patent Title (中): 安全预录数字媒体
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Application No.: US11328560Application Date: 2006-01-10
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Publication No.: US08229857B2Publication Date: 2012-07-24
- Inventor: Eric Diehl , Alain Durand
- Applicant: Eric Diehl , Alain Durand
- Applicant Address: FR Boulogne Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne Billancourt
- Agent Robert D. Shedd; Paul P. Kiel
- Priority: EP05100406 20050124
- Main IPC: H04L9/00
- IPC: H04L9/00 ; H04L9/08 ; H04L9/32 ; G06F21/00 ; G06F15/16 ; G06F11/30 ; G06F12/14 ; G06F7/04 ; G06F17/30 ; H04N7/167 ; H04N7/16

Abstract:
A secure pre-recorded medium and a method for descrambling encrypted content thereon. When a player wants to access the content, a secure processor on the medium verifies that the player has not been revoked, preferably by comparing an identity of the player with identities in a revocation list, after which a mutual authentication is performed. The secure processor then verifies that the player has the rights to access the content and provides the player with the key necessary to descramble the content, whereafter the player descrambles the content.
Public/Granted literature
- US20060178995A1 Secure pre-recorded digital medium Public/Granted day:2006-08-10
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