H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/32 (2006.01) H04L 9/00 (2006.01) H04N 7/26 (2006.01) H04N 7/167 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2486937
The present invention concerns a device (11) and a process for signing digital streams (10), each of them comprising contents, related to audiovisual information, and a signaling. The device applies encrypting to selectively determined descriptors of the signaling, called authenticated descriptors, to obtain signature. The invention also concerns corresponding authentication device (21) and process. Application to authentication of DVB/MPEG digital streams, notably for MHP.
Cette invention se rapporte à un dispositif (11) et à un procédé de signature de trains numériques (10) comprenant chacun des contenus, associés à des informations audiovisuelles, et une signalisation. Ce dispositif applique un cryptage sur des descripteurs déterminés sélectivement de la signalisation, appelés descripteurs authentifiés, afin d'obtenir une signature. Cette invention concerne également un dispositif (21) et un procédé d'authentification correspondants. Cette invention s'applique à l'authentification de trains numériques DVB/MPEG notamment de norme MHP.
Durand Alain
Lesenne Laurent
Pasquier Frederic
Schaefer Ralf
Fetherstonhaugh & Co.
Thomson Licensing S.a.
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