Invention Grant
US09077854B2 Preventing the use of modified receiver firmware in receivers of a conditional access system
有权
防止在条件访问系统的接收器中使用修改的接收机固件
- Patent Title: Preventing the use of modified receiver firmware in receivers of a conditional access system
- Patent Title (中): 防止在条件访问系统的接收器中使用修改的接收机固件
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Application No.: US13019677Application Date: 2011-02-02
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Publication No.: US09077854B2Publication Date: 2015-07-07
- Inventor: Gerard Johan Dekker
- Applicant: Gerard Johan Dekker
- Applicant Address: NL Hoofddorp
- Assignee: Irdeto B.V.
- Current Assignee: Irdeto B.V.
- Current Assignee Address: NL Hoofddorp
- Agency: Reed Smith LLP
- Agent Marc S. Kaufman; Amardeep S. Grewal
- Priority: EP10152534 20100203
- Main IPC: G06F21/00
- IPC: G06F21/00 ; H04L29/06 ; H04N7/16 ; G06F21/10 ; H04N21/258 ; H04N21/266 ; H04N21/418 ; H04N21/4367 ; H04N21/4623 ; H04N21/81 ; H04L9/32 ; H04N7/167
Abstract:
The invention enables the shared secret, which is used for encrypting the communication of CWs from a smartcard to a receiver, to cover at least a part of a binary image of firmware that is executing in the receiver. Preferably the shared secret covers the entire binary image of the firmware. Hereto, data from one or more predefined firmware memory locations are read, the set of data forming the shared secret.
Public/Granted literature
- US20110191589A1 PREVENTING THE USE OF MODIFIED RECEIVER FIRMWARE IN RECEIVERS OF A CONDITIONAL ACCESS SYSTEM Public/Granted day:2011-08-04
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