Processing

Please wait...

Settings

Settings

Goto Application

1. WO2007032593 - INTER-ENTITY COUPLING METHOD, APPARATUS AND SYSTEM FOR SERVICE PROTECTION

Publication Number WO/2007/032593
Publication Date 22.03.2007
International Application No. PCT/KR2006/002135
International Filing Date 02.06.2006
IPC
G06F 15/16 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
15Digital computers in general; Data processing equipment in general
16Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
CPC
H04L 2209/603
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
60Digital content management, e.g. content distribution
603Digital right managament [DRM]
H04L 63/0428
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
04for providing a confidential data exchange among entities communicating through data packet networks
0428wherein the data content is protected, e.g. by encrypting or encapsulating the payload
H04L 63/065
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
06for supporting key management in a packet data network
065for group communications
H04L 9/0833
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
083involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
0833involving conference or group key
H04L 9/321
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
321involving a third party or a trusted authority
H04L 9/3271
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3271using challenge-response
Applicants
  • SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventors
  • LEE, Byung-Rae
  • HWANG, Sung-Oh
  • KIM, Wuk
Agents
  • LEE, Keon-Joo
Priority Data
10-2005-008640915.09.2005KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INTER-ENTITY COUPLING METHOD, APPARATUS AND SYSTEM FOR SERVICE PROTECTION
(FR) PROCEDE, APPAREIL ET SYSTEME DE COUPLAGE ENTRE ENTITES DESTINES A LA PROTECTION DE SERVICE
Abstract
(EN)
Disclosed is an inter-entity coupling method for service protection in a broadcast environment including a terminal and a broadcast network, which includes a Broadcast Service Application (BSA), a Broadcast Service Distribution (BSD) and a Broadcast Service Management (BSM) function. The method includes executing enrollment and service joining procedures for the terminal, wherein the terminal acquires a group key in the enrollment procedure and acquires a Rights Object (RO) for the service in the service joining procedure; receiving a message including a traffic key in the terminal; acquiring the traffic key from the message using the RO; receiving an encrypted service encrypted by the BSD in the terminal; and decrypting the encrypted service using the traffic key in the terminal.
(FR)
L'invention concerne un procédé de couplage entre entités qui permet une protection de service dans un environnement de radiodiffusion comprenant un terminal et un réseau de radiodiffusion, lequel procédé fait appel à une fonction d'application de service de radiodiffusion ('Broadcast Service Application' ou BSA), à une fonction de distribution de service de radiodiffusion ('Broadcast Service Distribution' ou BSD) et à une fonction de gestion de service de radiodiffusion ('Broadcast Service Management' ou BSM). Le procédé de l'invention consiste:à exécuter des procédures de mise en lien entre une inscription et un service destiné au terminal, le terminal acquérant une clé de groupe lors de la procédure d'inscription et acquérant un objet de droits ('Rights Object' ou RO) pour le service lors de la procédure de mise en lien avec le service; à recevoir un message comprenant une clé de trafic dans le terminal; à acquérir la clé de trafic présente dans le message au moyen de l'objet de droits RO; à recevoir un service chiffré qui a été chiffré par la fonction BSD dans le terminal; et à déchiffrer le service chiffré au moyen de la clé de trafic dans le terminal.
Latest bibliographic data on file with the International Bureau