Processing

Please wait...

Settings

Settings

Goto Application

1. WO2005020541 - METHOD AND DEVICE FOR SECURING CONTENT DELIVERY OVER A COMMUNICATION NETWORK VIA CONTENT KEYS

Publication Number WO/2005/020541
Publication Date 03.03.2005
International Application No. PCT/US2004/002407
International Filing Date 27.01.2004
Chapter 2 Demand Filed 31.01.2005
IPC
G06F 21/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
H04L 29/06 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
CPC
G06F 17/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
G06F 21/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
G06F 21/10
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
H04K 1/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
1Secret communication
H04L 2209/60
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
H04L 2463/101
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2463Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
101applying security measures for digital rights management
Applicants
  • THOMSON LICENSING [FR]/[FR] (AllExceptUS)
  • ZHANG, Junbiao [CN]/[US] (UsOnly)
  • LI, Jun [CN]/[US] (UsOnly)
  • RAMASWAMY, Kumar [IN]/[US] (UsOnly)
Inventors
  • ZHANG, Junbiao
  • LI, Jun
  • RAMASWAMY, Kumar
Agents
  • TRIPOLI, Joseph, S.
Priority Data
60/494,83613.08.2003US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND DEVICE FOR SECURING CONTENT DELIVERY OVER A COMMUNICATION NETWORK VIA CONTENT KEYS
(FR) PROCEDE ET DISPOSITIF PERMETTANT D'ASSURER LA DISTRIBUTION DE CONTENU SUR UN RESEAU DE COMMUNICATION VIA DES CLES DE CONTENU
Abstract
(EN) A method for descrambling secure content received over a network is disclosed. The method is operable at a receiving device (150) located at a remote site in communication with a network (140) for receiving a first information item scrambled using an encrypting key (Pu) known by the remote site, descrambling the first information item using a corresponding decrypting key, wherein the information item includes an access code (CAC) and a content key (Kc), receiving a second information item, scrambled using the content key after a server, (120) hosting the second information verifies the access code (CAC) and descrambling the second information item using the content key (Kc).
(FR) L'invention concerne un procédé de désembrouillage de contenu sécurisé reçu sur un réseau. Ce procédé est mis en oeuvre au niveau d'un dispositif de réception (150) qui se trouve en un site distant communiquant avec un réseau (140) pour la réception d'un premier élément d'information au moyen d'une clé de chiffrement (Pu) connue par le site distant, le désembrouillage de cet élément au moyen d'une clé de déchiffrement correspondante, sachant que ledit élément comporte un code d'accès (CAC) et une clé de contenu (Kc), la réception d'un second élément d'information, embrouillé par l'utilisation de la clé de contenu, après la vérification du code d'accès (CAC) par un serveur (120) qui héberge le second élément, et le désembrouillage de ce second élément au moyen de la clé de contenu (Kc).
Related patent documents
US2007033396This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
Latest bibliographic data on file with the International Bureau