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1. WO2005009041 - PROCEDURE DE CONTROLE DE L'USAGE D'UN CONTENU TELEDIFFUSE

Numéro de publication WO/2005/009041
Date de publication 27.01.2005
N° de la demande internationale PCT/IB2004/002345
Date du dépôt international 12.07.2004
Demande présentée en vertu du Chapitre 2 10.12.2004
CIB
H04N 7/16 2011.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
7Systèmes de télévision
16Systèmes à secret analogiques; Systèmes à abonnement analogiques
CPC
H04H 60/23
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
09Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
14Arrangements for conditional access to broadcast information or to broadcast-related services
23using cryptography, e.g. encryption, authentication, key distribution
H04H 60/31
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
60Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
29Arrangements for monitoring broadcast services or broadcast-related services
31Arrangements for monitoring the use made of the broadcast services
H04N 21/2543
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
254Management at additional data server, e.g. shopping server, rights management server
2543Billing ; , e.g. for subscription services
H04N 21/41407
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
41Structure of client; Structure of client peripherals
414Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
41407embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
H04N 21/4181
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
41Structure of client; Structure of client peripherals
418External card to be used in combination with the client device, e.g. for conditional access
4181for conditional access
H04N 21/44222
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
44213Monitoring of end-user related data
44222Monitoring of user selections, e.g. selection of programs, purchase activity
Déposants
  • AXALTO SA [FR/FR]; 50 avenue Jean Jaurès F-92120 Montrouge, FR (AllExceptUS)
  • ABELLAN SEVILLA, Jorge [FR/FR]; FR (UsOnly)
Inventeurs
  • ABELLAN SEVILLA, Jorge; FR
Représentant commun
  • AXALTO SA; c/o Vincent YQUEL Intellectual Property Department 50 avenue Jean Jaurès F-92120 Montrouge, FR
Données relatives à la priorité
03291823.723.07.2003EP
03292704.829.10.2003EP
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) PROCEDURE FOR MONITORING THE USAGE OF A BROADCASTED CONTENT
(FR) PROCEDURE DE CONTROLE DE L'USAGE D'UN CONTENU TELEDIFFUSE
Abrégé
(EN)
Method for monitoring the usage of a service by a communication device coupled to a tamper resistant module, in particular a smart card. A said service is transmitted from a resource able to communicate with said communication device by way of a network. The service comprises a plurality of encrypted data flow and its use comprises successive decryption steps of data flow by a respective first key EK, said first key EK being encrypted in the data flow and decrypted in the tamper resistant module by way of a second key KEK stored in said tamper resistant module or derived inside said module. The invention is characterized in that said method comprises the following steps: a. A counting step, in which a memory location stores a count of occurrences of decryption steps of said first key EK attached to a same service; b. A using step, in which said counter is used to prove the amount of data flow which has been decrypted.
(FR)
Procédé de contrôle de l'usage d'un service par un dispositif de communication raccordé à un module inviolable, et notamment à une carte à puce. Un service de ce type est transmis par une ressource apte à communiquer avec ledit dispositif de communication par l'intermédiaire d'un réseau. Le service comporte plusieurs flux de données chiffrées et utilise une succession d'étapes de déchiffrement des flux de données par une première clé respective EK, cette première clé EK étant chiffrée dans le flux de données et déchiffrée dans un module inviolable au moyen d'une seconde clé KEK stockée dans ledit module inviolable ou dérivée à l'intérieur dudit module. L'invention se caractérise en ce que ledit procédé comporte les étapes suivantes : (a) une étape de comptage dans laquelle un site mémoire mémorise un total d'occurrences d'étapes de déchiffrement de ladite première clé EK reliées à un même service ; et (b) une étape de mise en oeuvre dans laquelle ledit compteur est utilisé pour démontrer la quantité de flux de données déchiffrées.
Également publié en tant que
US2006189296
Dernières données bibliographiques dont dispose le Bureau international