METHOD FOR DETECTING ILLEGAL USE OF A SECURITY PROCESSOR

This method for detecting an illicit use of a security processor used for the descrambling of different multimedia contents disseminated on several respective channels comprises: the incrementing (153) of a counter Kchi by a predetermined step whenever, after verification, a message ECMi,c is receiv...

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Bibliographic Details
Main Authors BOIVIN, Mathieu, DUBROEUCQ, Gilles
Format Patent
LanguageEnglish
French
German
Published 16.10.2019
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:This method for detecting an illicit use of a security processor used for the descrambling of different multimedia contents disseminated on several respective channels comprises: the incrementing (153) of a counter Kchi by a predetermined step whenever, after verification, a message ECMi,c is received within a time slot immediately consecutive to a message ECMi,p and, if not, the resetting (158) of the counter Kchi at its initial value, the detection (162) of an illicit use as soon as the counter Kchi reaches a predetermined threshold.
Bibliography:Application Number: EP20110734159