DE69614654D1 - Verschlüsselungsgerät und -verfahren - Google Patents

Verschlüsselungsgerät und -verfahren

Info

Publication number
DE69614654D1
DE69614654D1 DE69614654T DE69614654T DE69614654D1 DE 69614654 D1 DE69614654 D1 DE 69614654D1 DE 69614654 T DE69614654 T DE 69614654T DE 69614654 T DE69614654 T DE 69614654T DE 69614654 D1 DE69614654 D1 DE 69614654D1
Authority
DE
Germany
Prior art keywords
encryption device
encryption
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69614654T
Other languages
English (en)
Other versions
DE69614654T2 (de
Inventor
Hiroshi Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE69614654D1 publication Critical patent/DE69614654D1/de
Application granted granted Critical
Publication of DE69614654T2 publication Critical patent/DE69614654T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/16—Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management 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
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
DE69614654T 1995-12-15 1996-12-13 Verschlüsselungsgerät und -verfahren Expired - Fee Related DE69614654T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7326810A JPH09168006A (ja) 1995-12-15 1995-12-15 通信装置および通信方法

Publications (2)

Publication Number Publication Date
DE69614654D1 true DE69614654D1 (de) 2001-09-27
DE69614654T2 DE69614654T2 (de) 2002-02-07

Family

ID=18191968

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69614654T Expired - Fee Related DE69614654T2 (de) 1995-12-15 1996-12-13 Verschlüsselungsgerät und -verfahren

Country Status (5)

Country Link
US (1) US6069956A (de)
EP (1) EP0779738B1 (de)
JP (1) JPH09168006A (de)
CN (1) CN1089514C (de)
DE (1) DE69614654T2 (de)

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JP3791720B2 (ja) * 1997-06-11 2006-06-28 ソニー株式会社 伝送装置及び伝送方法
US7113523B1 (en) * 1997-06-11 2006-09-26 Sony Corporation Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device
US6970564B1 (en) * 1998-07-13 2005-11-29 Sony Corporation Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device
CN1256038A (zh) * 1998-02-10 2000-06-07 松下电器产业株式会社 数字广播方法及其接收装置
FI107669B (fi) * 1998-02-13 2001-09-14 Nokia Mobile Phones Ltd Menetelmä ja järjestely tiedonsiirron salaamiseksi
IL123554A (en) * 1998-03-04 2003-01-12 Nds Ltd Key delivery in a secure broadcasting system
JP3361052B2 (ja) * 1998-04-17 2003-01-07 株式会社東芝 データ処理装置および同装置に適用されるコピープロテクト方法
JP4273535B2 (ja) 1998-05-12 2009-06-03 ソニー株式会社 データ伝送制御方法、データ伝送システム、データ受信装置及びデータ送信装置
IL129230A (en) * 1999-03-29 2003-04-10 Nds Ltd System for determining successful reception of a message
US6778670B1 (en) * 1999-08-13 2004-08-17 Legerity, Inc. Method and apparatus for encryption and decryption
KR100605825B1 (ko) * 1999-09-14 2006-07-31 삼성전자주식회사 하드 디스크 드라이브를 구비하는 방송 수신 시스템의 복사 방지장치 및 방법
DE60040724D1 (de) * 2000-04-07 2008-12-18 Irdeto Access Bv Datenverschlüsselungs und -entschlüsselungssystem
KR100773446B1 (ko) * 2000-07-31 2007-11-05 소니 가부시끼 가이샤 기록매체와 기록매체에 대한 기록 및/또는 재생방법과기록매체에 대한 기록 및/또는 재생장치
US7499545B1 (en) * 2001-02-05 2009-03-03 Ati Technologies, Inc. Method and system for dual link communications encryption
JP3888422B2 (ja) * 2001-04-04 2007-03-07 日本電気株式会社 映像データ転送制御システム及び映像データ転送制御方法
US7634171B2 (en) * 2002-05-20 2009-12-15 Microsoft Corporation PC-based personal video recorder
FR2840147B1 (fr) * 2002-05-24 2004-08-27 France Telecom Procedes de brouillage et de debrouillage de signal video, systeme, decodeur, serveur de diffusion, support de donnees pour la mise en oeuvre de ces procedes
DE102004014130B4 (de) * 2004-03-23 2008-12-18 Axis Engineering Gmbh Verfahren und Vorrichtungen zur Übertragung von Daten an eine mobile Einheit
US20060015927A1 (en) * 2004-04-09 2006-01-19 Darcy Antonellis Motion picture distribution system and related method
US7944992B2 (en) * 2005-06-17 2011-05-17 Telefonaktiebolaget Lm Ericsson (Publ) Multicarrier CDMA system
JP2007181198A (ja) * 2006-12-04 2007-07-12 Sony Corp データ伝送制御方法
KR101362852B1 (ko) * 2007-04-20 2014-02-21 닛폰호소쿄카이 스크램블 키 관리장치, 스크램블 키 관리정보송신장치, 스크램블 키 출력관리방법, 스크램블 키 관리프로그램, 라이센스 정보관리장치, 라이센스 관리정보송신장치, 라이센스 정보출력관리방법 및 라이센스 정보관리프로그램
CN101325684B (zh) * 2007-06-14 2010-10-06 中兴通讯股份有限公司 基于移动多媒体广播的加密控制信息传输方法及系统
CN102084673B (zh) * 2008-07-08 2015-02-11 艾利森电话股份有限公司 用于隐蔽网络拓扑的方法和系统
EP2230845A1 (de) * 2009-03-16 2010-09-22 Irdeto Access B.V. Bereitstellung von Kontrollwörtern an einen Empfänger
CN101656866B (zh) * 2009-08-14 2012-05-23 中兴通讯股份有限公司 移动数字多媒体业务的接收方法及终端设备及接收装置
US9106405B1 (en) * 2012-06-25 2015-08-11 Amazon Technologies, Inc. Multi-user secret decay

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248042A (ja) * 1984-05-24 1985-12-07 Sony Corp デイジタル伝送システム
US4710921A (en) * 1985-07-05 1987-12-01 Sony Corporation Digital signal transmitting system
JPH01246979A (ja) * 1988-03-29 1989-10-02 Kondeishiyonaru Akusesu Technol Kenkyusho:Kk 有料番組分配装置及び暗号鍵の分配方法
JPH03239033A (ja) * 1990-02-16 1991-10-24 Sony Corp スクランブル方式及びスクランブル信号の受信装置
US5289276A (en) * 1992-06-19 1994-02-22 General Electric Company Method and apparatus for conveying compressed video data over a noisy communication channel
EP0582122B1 (de) * 1992-07-21 1999-03-24 Matsushita Electric Industrial Co., Ltd. Ver- und Entschlüsselungsvorrichtung
JP3581377B2 (ja) * 1993-04-06 2004-10-27 ソニー株式会社 ディジタル多重伝送方法と装置

Also Published As

Publication number Publication date
JPH09168006A (ja) 1997-06-24
CN1089514C (zh) 2002-08-21
EP0779738A2 (de) 1997-06-18
US6069956A (en) 2000-05-30
CN1160317A (zh) 1997-09-24
DE69614654T2 (de) 2002-02-07
EP0779738B1 (de) 2001-08-22
EP0779738A3 (de) 1997-12-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee