发明公开
EP2596623A1 PROCEDE DE DETECTION D'UNE UNTILISATION ILLICITE D'UN PROCESSEUR DE SECURITE
审中-公开
检测方法的安全处理器的未经授权的使用
- 专利标题： PROCEDE DE DETECTION D'UNE UNTILISATION ILLICITE D'UN PROCESSEUR DE SECURITE
- 专利标题（英）： Method for detecting illegal use of a security processor
- 专利标题（中）： 检测方法的安全处理器的未经授权的使用
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申请号： EP11734159.4申请日： 2011-07-22
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公开(公告)号： EP2596623A1公开(公告)日： 2013-05-29
- 发明人: BOIVIN, Mathieu , DUBROEUCQ, Gilles
- 申请人： Viaccess
- 申请人地址： Les Collines de l'Arche, Tour Opéra C 92057 Paris La Defense FR
- 专利权人： Viaccess
- 当前专利权人： Viaccess
- 当前专利权人地址： Les Collines de l'Arche, Tour Opéra C 92057 Paris La Defense FR
- 代理机构： Colombo, Michel
- 优先权： FR1056031 20100723
- 国际公布： WO2012010706 20120126
- 主分类号： H04N5/00
- IPC分类号： H04N5/00 ; H04N7/167
摘要：
This method for detecting illegal use of a security processor used for descrambling various multimedia contents broadcast on a plurality of respective channels involves: - incrementing (153) a counter Kch
i by a predetermined step each time that, following the verification, a message ECM
i,c is received within a time window immediately following a message ECM
i,p and, in a converse case, reinitializing (158) the counter Kch
i to its initial value, - detecting (162) illegal use as soon as the counter Kch
i reaches a predetermined threshold.
i by a predetermined step each time that, following the verification, a message ECM
i,c is received within a time window immediately following a message ECM
i,p and, in a converse case, reinitializing (158) the counter Kch
i to its initial value, - detecting (162) illegal use as soon as the counter Kch
i reaches a predetermined threshold.
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