发明授权
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
- 专利标题： Preventing the use of modified receiver firmware in receivers of a conditional access system
- 专利标题（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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申请号： US13019677申请日： 2011-02-02
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公开(公告)号： US09077854B2公开(公告)日： 2015-07-07
- 发明人: Gerard Johan Dekker
- 申请人： Gerard Johan Dekker
- 申请人地址： NL Hoofddorp
- 专利权人： Irdeto B.V.
- 当前专利权人： Irdeto B.V.
- 当前专利权人地址： NL Hoofddorp
- 代理机构： Reed Smith LLP
- 代理商 Marc S. Kaufman; Amardeep S. Grewal
- 优先权： EP10152534 20100203
- 主分类号： G06F21/00
- IPC分类号： G06F21/00 ; H04L29/06 ; H04N7/16 ; G06F21/10 ; H04N21/258 ; H04N21/266 ; H04N21/418 ; H04N21/4367 ; H04N21/4623 ; H04N21/81 ; H04L9/32 ; H04N7/167
摘要：
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.
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