发明名称 A method for secure transfer of messages
摘要 The present invention may be deployed in a system for broadcast of conditional access content where it is desirable to detect and take action against receiver equipment which has been used in a control word sharing activity. By requiring that receiver equipment used in the system send a message to a broadcaster of conditional access content at a precise time, the invention provides a method for the server to detect receiver equipment involved in control word sharing activity and to inhibit that receiver's ability to further access the content.
申请公布号 EP2405650(A1) 申请公布日期 2012.01.11
申请号 EP20100169111 申请日期 2010.07.09
申请人 NAGRAVISION S.A. 发明人 WENDLING, BERTRAND
分类号 H04N7/16;H04N7/167;H04N21/266;H04N21/61 主分类号 H04N7/16
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