HK1026314A1 - System for securely broadcasting data signals and system for decrypting encrypted data signals - Google Patents

System for securely broadcasting data signals and system for decrypting encrypted data signals

Info

Publication number
HK1026314A1
HK1026314A1 HK00105413A HK00105413A HK1026314A1 HK 1026314 A1 HK1026314 A1 HK 1026314A1 HK 00105413 A HK00105413 A HK 00105413A HK 00105413 A HK00105413 A HK 00105413A HK 1026314 A1 HK1026314 A1 HK 1026314A1
Authority
HK
Hong Kong
Prior art keywords
key
data signals
subscribers
encrypted
common
Prior art date
Application number
HK00105413A
Other languages
English (en)
Inventor
Simon Paul Ashley Rix
Andrew Augustine Wajs
Original Assignee
Mindport Bv
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 Mindport Bv filed Critical Mindport Bv
Publication of HK1026314A1 publication Critical patent/HK1026314A1/xx

Links

Classifications

    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key 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)
    • H04L9/0822—Key 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 key encryption key
    • 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
    • H04N21/442—Monitoring 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
    • H04N21/44236—Monitoring of piracy processes or activities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H04L2209/601—Broadcast encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Virology (AREA)
  • Health & Medical Sciences (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
  • Storage Device Security (AREA)
  • Burglar Alarm Systems (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)
HK00105413A 1998-09-01 2000-08-30 System for securely broadcasting data signals and system for decrypting encrypted data signals HK1026314A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98202914A EP0984629B1 (en) 1998-09-01 1998-09-01 System for broadcasting data signals in a secure manner

Publications (1)

Publication Number Publication Date
HK1026314A1 true HK1026314A1 (en) 2000-12-08

Family

ID=8234078

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00105413A HK1026314A1 (en) 1998-09-01 2000-08-30 System for securely broadcasting data signals and system for decrypting encrypted data signals

Country Status (13)

Country Link
US (1) US6393128B1 (ja)
EP (1) EP0984629B1 (ja)
JP (1) JP4628509B2 (ja)
CN (1) CN1300975C (ja)
AT (1) ATE325505T1 (ja)
AU (1) AU756977B2 (ja)
BR (1) BR9904057A (ja)
CA (1) CA2281146C (ja)
DE (1) DE69834396T2 (ja)
ES (1) ES2262210T3 (ja)
HK (1) HK1026314A1 (ja)
RU (1) RU99119071A (ja)
ZA (1) ZA995260B (ja)

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US20030149986A1 (en) * 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US6289455B1 (en) * 1999-09-02 2001-09-11 Crypotography Research, Inc. Method and apparatus for preventing piracy of digital content
GB2374998B (en) * 2000-05-22 2004-10-13 Nds Ltd Dynamically shifting control word
PT1352523E (pt) * 2001-01-16 2004-11-30 Nagracard Sa Metodo para armazenar dados criptografados
US20020146125A1 (en) * 2001-03-14 2002-10-10 Ahmet Eskicioglu CA system for broadcast DTV using multiple keys for different service providers and service areas
FR2823039B1 (fr) 2001-03-30 2003-08-01 Canal Plus Technologies Systeme et procede de transmission d'informations chiffrees a cle chiffree
CN100375521C (zh) * 2001-07-04 2008-03-12 天地数码网络有限公司 用于加密信号传输过程的安全单元
GB2377348B (en) * 2001-07-04 2004-07-14 Digital Video Networks Ltd Security unit for encrypted signal transmission
WO2003036857A1 (en) * 2001-10-24 2003-05-01 Nokia Corporation Ciphering as a part of the multicast cencept
US7930712B1 (en) * 2001-11-08 2011-04-19 The Directv Group, Inc. Apparatus and method for processing content signals from multiple signal sources
US7751569B2 (en) * 2002-11-19 2010-07-06 Oracle America, Inc. Group admission control apparatus and methods
DE10307996B4 (de) * 2003-02-25 2011-04-28 Siemens Ag Verfahren zum Ver- und Entschlüsseln von Daten durch verschiedene Nutzer
JP4976135B2 (ja) * 2003-11-13 2012-07-18 イルデト アイントホーフェン ベー フェー 限定アクセス方法及び限定アクセス装置
US10477151B2 (en) 2004-10-18 2019-11-12 Inside Secure Method and apparatus for supporting multiple broadcasters independently using a single conditional access system
US8243925B2 (en) * 2004-10-18 2012-08-14 Syphermedia International, Inc. Method and apparatus for supporting multiple broadcasters independently using a single conditional access system
US9225698B2 (en) 2005-05-12 2015-12-29 Nokia Technologies Oy Fine grain rights management of streaming content
JP4900645B2 (ja) * 2005-08-01 2012-03-21 ソニー株式会社 受信装置、受信方法、送信装置、送信方法、プログラム、記録媒体、通信システム、および通信方法
JP4350714B2 (ja) * 2006-02-27 2009-10-21 株式会社東芝 送信装置、受信装置及び送信方法
CN101150395B (zh) * 2006-09-22 2010-05-12 中国科学院声学研究所 一种加密授权管理系统的双重分组的四层加密方法
US8396221B2 (en) 2006-12-21 2013-03-12 Oracle International Corporation Secure broadcasting and multicasting
CN101026451B (zh) * 2007-02-02 2010-09-29 清华大学 条件接收系统中基于产品和用户分别分组的密钥分配方法
US8683549B2 (en) 2007-03-23 2014-03-25 Microsoft Corporation Secure data storage and retrieval incorporating human participation
US8837726B2 (en) * 2009-10-16 2014-09-16 Cisco Technology, Inc. Content protection key encryptor for security providers
ES2523423B1 (es) 2013-04-10 2015-11-24 Crypto Solutions, S.L. Dispositivo de cifrado simetrico y procedimiento empleado

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JPS6120442A (ja) * 1984-07-09 1986-01-29 Toshiba Corp 有料放送方式
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Also Published As

Publication number Publication date
AU4478799A (en) 2000-03-16
CA2281146C (en) 2010-07-20
ATE325505T1 (de) 2006-06-15
ZA995260B (en) 2000-02-21
EP0984629B1 (en) 2006-05-03
JP4628509B2 (ja) 2011-02-09
JP2000092039A (ja) 2000-03-31
DE69834396T2 (de) 2007-02-22
RU99119071A (ru) 2001-07-27
BR9904057A (pt) 2000-08-29
CN1249584A (zh) 2000-04-05
DE69834396D1 (de) 2006-06-08
EP0984629A1 (en) 2000-03-08
CN1300975C (zh) 2007-02-14
CA2281146A1 (en) 2000-03-01
ES2262210T3 (es) 2006-11-16
AU756977B2 (en) 2003-01-30
US6393128B1 (en) 2002-05-21

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20120826