RU2391783C2 - Способ управления цифровыми правами при широковещательном/многоадресном обслуживании - Google Patents

Способ управления цифровыми правами при широковещательном/многоадресном обслуживании Download PDF

Info

Publication number
RU2391783C2
RU2391783C2 RU2007112475/09A RU2007112475A RU2391783C2 RU 2391783 C2 RU2391783 C2 RU 2391783C2 RU 2007112475/09 A RU2007112475/09 A RU 2007112475/09A RU 2007112475 A RU2007112475 A RU 2007112475A RU 2391783 C2 RU2391783 C2 RU 2391783C2
Authority
RU
Russia
Prior art keywords
service
domain
key
terminal
rights
Prior art date
Application number
RU2007112475/09A
Other languages
English (en)
Russian (ru)
Other versions
RU2007112475A (ru
Inventor
Сон-Му СОН (KR)
Сон-Му СОН
Дон-Хи СИМ (KR)
Дон-Хи СИМ
Кё-Сон ХАН (KR)
Кё-Сон ХАН
Мин-Чон СОН (KR)
Мин-Чон СОН
Те Хён КИМ (KR)
Те Хён КИМ
Сон Чже ЛИ (KR)
Сон Чже ЛИ
Ён Сон ЧУ (KR)
Ён Сон ЧУ
Original Assignee
Эл Джи Электроникс Инк.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Эл Джи Электроникс Инк. filed Critical Эл Джи Электроникс Инк.
Publication of RU2007112475A publication Critical patent/RU2007112475A/ru
Application granted granted Critical
Publication of RU2391783C2 publication Critical patent/RU2391783C2/ru

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08Access security
    • H04W12/086Access security using security domains
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H60/00Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/15Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H60/00Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/104Grouping of entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819Key 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)
    • H04L9/0825Key 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) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819Key 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)
    • H04L9/083Key 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) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833Key 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) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60Digital content management, e.g. content distribution
    • H04L2209/601Broadcast encryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60Digital content management, e.g. content distribution
    • H04L2209/603Digital right managament [DRM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80Wireless
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
RU2007112475/09A 2005-01-14 2006-01-13 Способ управления цифровыми правами при широковещательном/многоадресном обслуживании RU2391783C2 (ru)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US64399705P 2005-01-14 2005-01-14
US60/643,997 2005-01-14
KR10-2005-0029717 2005-04-09
KR1020050029717A KR100811046B1 (ko) 2005-01-14 2005-04-09 브로드캐스트/멀티캐스트 서비스에서 디지털 저작권관리방법

Publications (2)

Publication Number Publication Date
RU2007112475A RU2007112475A (ru) 2009-02-20
RU2391783C2 true RU2391783C2 (ru) 2010-06-10

Family

ID=37173590

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2007112475/09A RU2391783C2 (ru) 2005-01-14 2006-01-13 Способ управления цифровыми правами при широковещательном/многоадресном обслуживании

Country Status (12)

Country Link
US (1) US7769177B2 (enExample)
EP (1) EP1836795B1 (enExample)
JP (1) JP4705958B2 (enExample)
KR (2) KR100811046B1 (enExample)
CN (1) CN101061666B (enExample)
AT (1) ATE501561T1 (enExample)
BR (1) BRPI0605911A2 (enExample)
DE (1) DE602006020543D1 (enExample)
ES (1) ES2359507T3 (enExample)
MX (1) MX2007003920A (enExample)
RU (1) RU2391783C2 (enExample)
WO (1) WO2006075900A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658894C1 (ru) * 2017-07-26 2018-06-25 Открытое Акционерное Общество "Информационные Технологии И Коммуникационные Системы" Способ управления доступом к данным с защитой учетных записей пользователей

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006107164A1 (en) * 2005-04-02 2006-10-12 Samsung Electronics Co., Ltd. Apparatus and method for delivering stream in a mobile broadcast system
US9225698B2 (en) 2005-05-12 2015-12-29 Nokia Technologies Oy Fine grain rights management of streaming content
EP1742475A1 (fr) * 2005-07-07 2007-01-10 Nagravision S.A. Méthode de contrôle d'accès à des données chiffrées
KR100724935B1 (ko) * 2005-09-15 2007-06-04 삼성전자주식회사 컨텐츠 보호를 위한 개체 간 연동 방법 및 장치, 그리고 그시스템
KR101158155B1 (ko) * 2005-11-10 2012-06-19 삼성전자주식회사 휴대 방송 시스템에서 암호화 정보 송수신 방법 및 그에따른 시스템
US8774414B2 (en) * 2005-11-10 2014-07-08 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving encryption information in a mobile broadcast system
KR20070050712A (ko) 2005-11-11 2007-05-16 엘지전자 주식회사 Srm의 디지털 저작권 관리 방법 및 장치
CN100571438C (zh) * 2006-02-22 2009-12-16 华为技术有限公司 移动广播组播业务中订阅购买对象的方法
KR100975386B1 (ko) * 2006-02-27 2010-08-11 삼성전자주식회사 휴대 방송 시스템에서 방송 서비스/컨텐츠 보호 방법과 시스템 및 이를 위한 단기 키 메시지의 생성 방법
WO2007097604A1 (en) 2006-02-27 2007-08-30 Samsung Electronics Co., Ltd. Method and system for protecting broadcast service/content in a mobile broadcast system, and method for generating short term key message therefor
US7583370B2 (en) 2006-05-05 2009-09-01 Virgin Islands Microsystems, Inc. Resonant structures and methods for encoding signals into surface plasmons
CN101119582A (zh) * 2006-07-31 2008-02-06 华为技术有限公司 一种订阅移动业务的方法和系统
US20080047006A1 (en) * 2006-08-21 2008-02-21 Pantech Co., Ltd. Method for registering rights issuer and domain authority in digital rights management and method for implementing secure content exchange functions using the same
WO2008054329A1 (en) * 2006-10-31 2008-05-08 Agency For Science, Technology And Research Device and method of generating and distributing access permission to digital object
US7978848B2 (en) * 2007-01-09 2011-07-12 Microsoft Corporation Content encryption schema for integrating digital rights management with encrypted multicast
WO2008088201A1 (en) * 2007-01-19 2008-07-24 Lg Electronics Inc. Method for protecting content and method for processing information
KR100850929B1 (ko) * 2007-01-26 2008-08-07 성균관대학교산학협력단 도메인 drm 라이선스의 암호화/복호화 시스템 및 그암호화/복호화 방법
US20080219436A1 (en) * 2007-03-05 2008-09-11 General Instrument Corporation Method and apparatus for providing a digital rights management engine
US8539543B2 (en) * 2007-04-12 2013-09-17 Microsoft Corporation Managing digital rights for multiple assets in an envelope
US9805374B2 (en) * 2007-04-12 2017-10-31 Microsoft Technology Licensing, Llc Content preview
KR101458205B1 (ko) * 2007-09-17 2014-11-12 삼성전자주식회사 휴대 방송 시스템에서 방송 서비스 송수신 방법 및 장치
US8112629B2 (en) * 2007-10-26 2012-02-07 Red Hat, Inc. Stateless challenge-response protocol
KR100981419B1 (ko) * 2008-01-31 2010-09-10 주식회사 팬택 디지털 권한 관리를 위한 사용자 도메인 가입방법 및 그정보 교환 방법
CN101946459B (zh) * 2008-02-26 2015-08-12 艾利森电话股份有限公司 用于可靠的广播/组播服务的方法和设备
US8646104B2 (en) * 2008-02-27 2014-02-04 Red Hat, Inc. Stateless challenge-response broadcast protocol
EP2225848B1 (en) * 2008-03-10 2012-08-15 NDS Limited Key distribution system
US20090253416A1 (en) * 2008-04-04 2009-10-08 Samsung Electronics Co. Ltd. Method and system for providing user defined bundle in a mobile broadcast system
FR2930390B1 (fr) * 2008-04-21 2010-04-16 Etsem Ltd Procede de diffusion securisee de donnees numeriques vers un tiers autorise.
US8583785B2 (en) * 2008-06-03 2013-11-12 Telefonaktiebolaget Lm Ericsson (Publ) System, method and a component for monitoring broadcast/multicast usage
KR101465263B1 (ko) * 2008-06-11 2014-11-26 삼성전자주식회사 휴대 방송 시스템에서 암호화 키 분배 방법 및 이를 위한시스템
EP2150049A1 (en) 2008-07-30 2010-02-03 Koninklijke KPN N.V. Virtually increasing the number of content broadcast channels
KR20100047651A (ko) * 2008-10-29 2010-05-10 삼성전자주식회사 유료 채널 제공을 위한 암호키 획득 방법 및 장치
KR101548999B1 (ko) * 2008-10-29 2015-09-01 엘지전자 주식회사 이동단말기 및 그 제어 방법
US9426213B2 (en) 2008-11-11 2016-08-23 At&T Intellectual Property Ii, L.P. Hybrid unicast/anycast content distribution network system
US8578157B2 (en) * 2009-05-29 2013-11-05 Adobe Systems Incorporated System and method for digital rights management with authorized device groups
US8842823B2 (en) * 2009-09-09 2014-09-23 Telefonaktiebolaget L M Ericsson (Publ) Technique for determining usage of encrypted media content
KR101137631B1 (ko) * 2009-10-13 2012-04-19 에스케이플래닛 주식회사 디지털 방송 수신기의 수신 제한 시스템 및 수신 제한 방법
KR101287628B1 (ko) * 2009-11-24 2013-08-23 한국전자통신연구원 디지털 콘텐츠 재생 장치 및 방법
US8560708B2 (en) * 2010-06-29 2013-10-15 Alcatel Lucent Method and apparatus for allocating bundles of sessions in a network element
US20140149544A1 (en) 2012-11-28 2014-05-29 Qualcomm Incorporated System and method for providing rights management services for network services
US9864972B2 (en) * 2013-11-14 2018-01-09 Wells Fargo Bank, N.A. Vehicle interface
US10205712B2 (en) * 2015-06-10 2019-02-12 Mcafee, Llc Sentinel appliance in an internet of things realm
US11606342B2 (en) * 2020-06-04 2023-03-14 Caliola Engineering, LLC Secure wireless cooperative broadcast networks
US12047778B2 (en) * 2021-08-11 2024-07-23 Texas Instruments Incorporated Wireless battery management system setup
KR102741939B1 (ko) 2022-06-20 2024-12-11 이당훈 내연기관의 연소촉진을 위한 흡기구 측 연소촉매 공급방법 및 그 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2193291C2 (ru) * 1996-10-29 2002-11-20 Квэлкомм Инкорпорейтед Способ обеспечения высокоскоростной передачи данных в оборудовании сотовой связи и устройство для его осуществления
US20020198845A1 (en) * 2001-06-07 2002-12-26 Contentguard Holdings, Inc. Method and apparatus for supporting multiple trust zones in a digital rights management system
WO2003005145A2 (en) * 2001-07-06 2003-01-16 Nokia Corporation Digital rights management in a mobile communications environment
US20030076955A1 (en) * 2001-10-18 2003-04-24 Jukka Alve System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state
WO2003036441A2 (en) * 2001-10-18 2003-05-01 International Business Machines Corporation Method and system for digital rights management in content distribution applications

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531020A (en) * 1982-07-23 1985-07-23 Oak Industries Inc. Multi-layer encryption system for the broadcast of encrypted information
JPH04213242A (ja) * 1990-12-07 1992-08-04 Hitachi Ltd 限定同報通信システム
US6049878A (en) * 1998-01-20 2000-04-11 Sun Microsystems, Inc. Efficient, secure multicasting with global knowledge
JPH11346214A (ja) * 1998-06-02 1999-12-14 Nec Corp 同報配信システム
US20020172368A1 (en) * 2000-10-26 2002-11-21 General Instrument, Inc. Intial free preview for multimedia multicast content
US7039803B2 (en) * 2001-01-26 2006-05-02 International Business Machines Corporation Method for broadcast encryption and key revocation of stateless receivers
US7995603B2 (en) * 2001-05-22 2011-08-09 Nds Limited Secure digital content delivery system and method over a broadcast network
KR100408287B1 (ko) * 2001-06-15 2003-12-03 삼성전자주식회사 컨텐트 보호 시스템 및 방법
US7185362B2 (en) * 2001-08-20 2007-02-27 Qualcomm, Incorporated Method and apparatus for security in a data processing system
JP2003069547A (ja) * 2001-08-29 2003-03-07 Fujitsu Ltd マルチキャスト通信システム
KR20040098394A (ko) * 2003-05-14 2004-11-20 삼성전자주식회사 이동통신시스템에서 멀티미디어 브로드케스트/멀티케스드서비스에 따른 호출 정보 전송방법
US20050172127A1 (en) * 2004-01-31 2005-08-04 Frank Hartung System and method for transcoding encrypted multimedia messages transmitted between two devices
KR100684310B1 (ko) * 2004-03-05 2007-02-16 한국전자통신연구원 무선 휴대 인터넷 시스템에서의 트래픽 암호화 키 관리방법 및 그 프로토콜 구성 방법, 그리고 가입자단말에서의 트래픽 암호화 키 상태 머신의 동작 방법
US20060056324A1 (en) * 2004-09-10 2006-03-16 Nokia Corporation Apparatus and method to provide mobile music appliance with subscription-based play-list service

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2193291C2 (ru) * 1996-10-29 2002-11-20 Квэлкомм Инкорпорейтед Способ обеспечения высокоскоростной передачи данных в оборудовании сотовой связи и устройство для его осуществления
US20020198845A1 (en) * 2001-06-07 2002-12-26 Contentguard Holdings, Inc. Method and apparatus for supporting multiple trust zones in a digital rights management system
WO2003005145A2 (en) * 2001-07-06 2003-01-16 Nokia Corporation Digital rights management in a mobile communications environment
US20030076955A1 (en) * 2001-10-18 2003-04-24 Jukka Alve System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state
WO2003036441A2 (en) * 2001-10-18 2003-05-01 International Business Machines Corporation Method and system for digital rights management in content distribution applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658894C1 (ru) * 2017-07-26 2018-06-25 Открытое Акционерное Общество "Информационные Технологии И Коммуникационные Системы" Способ управления доступом к данным с защитой учетных записей пользователей

Also Published As

Publication number Publication date
EP1836795B1 (en) 2011-03-09
BRPI0605911A2 (pt) 2009-05-26
HK1113446A1 (zh) 2008-10-03
KR20070061777A (ko) 2007-06-14
RU2007112475A (ru) 2009-02-20
US7769177B2 (en) 2010-08-03
EP1836795A1 (en) 2007-09-26
JP2008524914A (ja) 2008-07-10
MX2007003920A (es) 2007-06-07
ES2359507T3 (es) 2011-05-24
CN101061666A (zh) 2007-10-24
US20060206708A1 (en) 2006-09-14
EP1836795A4 (en) 2009-11-11
WO2006075900A1 (en) 2006-07-20
CN101061666B (zh) 2011-08-10
KR20060083099A (ko) 2006-07-20
KR100811046B1 (ko) 2008-03-06
ATE501561T1 (de) 2011-03-15
JP4705958B2 (ja) 2011-06-22
DE602006020543D1 (de) 2011-04-21
KR100939430B1 (ko) 2010-01-28

Similar Documents

Publication Publication Date Title
RU2391783C2 (ru) Способ управления цифровыми правами при широковещательном/многоадресном обслуживании
US20080216177A1 (en) Contents Distribution System
US20030140257A1 (en) Encryption, authentication, and key management for multimedia content pre-encryption
RU2344554C2 (ru) Способ межобъектного соединения, устройство и система для защиты содержимого
JP5489301B2 (ja) 移動体ブロードキャストシステムにおける暗号化キー分配方法、暗号化キーの分配を受ける方法及びこのためのシステム
JP2008524914A5 (enExample)
KR20040053321A (ko) 보안 인터넷 프로토콜 권한 관리 아키텍쳐에 대한 키 관리프로토콜 및 인증 시스템
US20070088660A1 (en) Digital security for distributing media content to a local area network
US8417933B2 (en) Inter-entity coupling method, apparatus and system for service protection
KR20060105934A (ko) 브로드캐스트 서비스를 지원하는 서비스 제공자와 단말기간에 디지털 저작권 관리 컨텐츠 공유 방법 및 장치,그리고 그 시스템
JP2004153590A (ja) コンテンツ配信方法およびそのためのコンテンツ記憶装置記憶装置
KR100916228B1 (ko) 페이 퍼 뷰 및 서비스 기반 방송 가입자를 위한 sek와pek의 관리 방법 및 그 통신 시스템
Taesombut et al. A secure multimedia system in emerging wireless home networks
HK1113446B (en) Method for managing digital rights in broadcast/multicast service
CN101291420A (zh) 基于ims的iptv系统及内容保护服务功能实体和方法

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20190114