发明授权
- 专利标题： PROCEDE ET DISPOSITIF DE DIAGNOSTIC DE LA PREMIERE RECEPTION D'UN IDENTIFIANT, PROCEDE DE DETECTION, SUPPORT D'ENREGISTREMENT ET PROGRAMME D'ORDINATEUR POUR CE PROCEDE
- 专利标题（英）： Method and device for diagnosing the first reception of an identifier, detection method, storage medium and computer software for said method
- 专利标题（中）： 用于诊断第一方法和设备接收的标识，检测方法，存储设备和电脑软件的程序
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申请号： EP09749130.2申请日： 2009-11-12
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公开(公告)号： EP2356608B1公开(公告)日： 2012-08-01
- 发明人: GADACHA, Haythem
- 申请人： Viaccess
- 申请人地址： Les Collines de l'Arche Tour Opéra C 92057 Paris La Défense 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 Défense FR
- 代理机构： Colombo, Michel
- 优先权： FR0857881 20081120
- 国际公布： WO2010057828 20100527
- 主分类号： G06F21/00
- IPC分类号： G06F21/00
摘要：
The method of the invention comprises: a) determining (64, 68) at least one limit based on N already received identifiers, where N is strictly higher than the number of identifiers that can be contained in an anti-replay memory, the limit being determined so as to define, on the one hand, a range of identifiers that have not yet been received and, on the other hand, a range of identifiers containing the N already received identifiers; b) comparing (58) the newly received identifier to said limit; c) if the newly received identifier belongs to the range identifiers that have not yet been received, diagnosing (60) a first reception of the newly received identifier; and d) if the newly received identifier belongs to the range of identifiers containing the N already received identifiers, searching (73) the newly received identifier among those contained in the anti-replay memory.
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