WO2006132735A3 - Key table and authorization table management - Google Patents

Key table and authorization table management Download PDF

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Publication number
WO2006132735A3
WO2006132735A3 PCT/US2006/017016 US2006017016W WO2006132735A3 WO 2006132735 A3 WO2006132735 A3 WO 2006132735A3 US 2006017016 W US2006017016 W US 2006017016W WO 2006132735 A3 WO2006132735 A3 WO 2006132735A3
Authority
WO
WIPO (PCT)
Prior art keywords
receiver device
storage location
key
location forming
abstract
Prior art date
Application number
PCT/US2006/017016
Other languages
French (fr)
Other versions
WO2006132735A2 (en
Inventor
Leo M Pedlow
Original Assignee
Sony Corp
Sony Electronics Inc
Leo M Pedlow
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 Sony Corp, Sony Electronics Inc, Leo M Pedlow filed Critical Sony Corp
Publication of WO2006132735A2 publication Critical patent/WO2006132735A2/en
Publication of WO2006132735A3 publication Critical patent/WO2006132735A3/en

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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption

Abstract

A receiver device consistent with certain embodiments that receives and decrypts digital cable or satellite television signals has a receiver that tunes and demodulates the television signal into a digital transport stream. A decrypter decrypts the digital transport stream using a pair of decryption keys. A first decryption key array stored in a first storage location forming a part of the receiver device, and a second key array stored in a second storage location forming a part of the receiver device, the first and second key arrays representing ordered pairs of keys. An authorization table is stored in a third storage location forming a part of the receiver device, the authorization table containing a mapping, wherein each ordered pair of decryption keys corresponds to a different one of a plurality of Multichannel Video Program Distributors (MVPD). This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
PCT/US2006/017016 2005-06-07 2006-05-04 Key table and authorization table management WO2006132735A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68855305P 2005-06-07 2005-06-07
US60/688,553 2005-06-07
US11/348,777 2006-02-07
US11/348,777 US8050406B2 (en) 2005-06-07 2006-02-07 Key table and authorization table management

Publications (2)

Publication Number Publication Date
WO2006132735A2 WO2006132735A2 (en) 2006-12-14
WO2006132735A3 true WO2006132735A3 (en) 2009-04-16

Family

ID=37494099

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/017016 WO2006132735A2 (en) 2005-06-07 2006-05-04 Key table and authorization table management

Country Status (2)

Country Link
US (1) US8050406B2 (en)
WO (1) WO2006132735A2 (en)

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US8140859B1 (en) 2000-07-21 2012-03-20 The Directv Group, Inc. Secure storage and replay of media programs using a hard-paired receiver and storage device
US7409562B2 (en) * 2001-09-21 2008-08-05 The Directv Group, Inc. Method and apparatus for encrypting media programs for later purchase and viewing
US20060031873A1 (en) * 2004-08-09 2006-02-09 Comcast Cable Holdings, Llc System and method for reduced hierarchy key management
US8165302B2 (en) * 2005-06-07 2012-04-24 Sony Corporation Key table and authorization table management
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
US8813243B2 (en) * 2007-02-02 2014-08-19 Red Hat, Inc. Reducing a size of a security-related data object stored on a token
US8391309B2 (en) * 2007-02-20 2013-03-05 Arris Group, Inc. Method and system for using mnemonic symbols to provision channel attributes with an attribute mask
RU2339077C1 (en) * 2007-03-13 2008-11-20 Олег Вениаминович Сахаров Method of operating conditional access system for application in computer networks and system for its realisation
JP5355554B2 (en) * 2007-05-22 2013-11-27 イルデト・コーポレート・ビー・ヴイ Updating encryption key data
US9800838B2 (en) 2007-09-27 2017-10-24 The Directv Group, Inc. Method and system for providing content to a content distribution system suitable for a multiple dwelling unit using an authorization list
EP2063638A1 (en) * 2007-11-26 2009-05-27 Nagravision S.A. Method for assessing user rights stored in a security module
FR2924889B1 (en) * 2007-12-10 2010-12-03 Eutelsat DIGITAL TELEVISION DECODER
JP5219688B2 (en) * 2008-08-11 2013-06-26 キヤノン株式会社 Broadcast receiving apparatus and control method thereof
US9009756B2 (en) * 2011-04-13 2015-04-14 Comcast Cable Communications, Llc Virtual channel map masking
TWI459230B (en) 2011-08-08 2014-11-01 Ind Tech Res Inst Drm apparatus and drm method
TWI475879B (en) * 2011-12-06 2015-03-01 Ind Tech Res Inst Method and apparatus for enciphering/deciphering digital rights management object
US20140181985A1 (en) * 2012-12-21 2014-06-26 Broadcom Corporation Content Specific Data Scrambling
US9576116B2 (en) * 2013-12-26 2017-02-21 Nxp B.V. Secure software components anti-reverse-engineering by table interleaving
US11228427B2 (en) * 2014-02-11 2022-01-18 Ericsson Ab System and method for securing content keys delivered in manifest files
US10528707B2 (en) * 2015-06-15 2020-01-07 Samsung Electronics Co., Ltd. Enabling content protection over broadcast channels
CN109635038B (en) * 2018-11-20 2022-08-19 福建亿榕信息技术有限公司 Remote double-reading and writing method for structured data
US10977268B2 (en) 2019-05-31 2021-04-13 Snowflake Inc. Data exchange
CN111737660B (en) * 2020-06-28 2023-11-17 浙江大华技术股份有限公司 Method, system and storage medium for realizing software authorization

Citations (2)

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US6359986B1 (en) * 1997-08-06 2002-03-19 Matsushita Electric Industrial Co., Ltd. Encryption system capable of specifying a type of an encrytion device that produced a distribution medium
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words

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US5020129A (en) * 1990-04-16 1991-05-28 General Instrument Corporation Addressable control system for CATV program distribution
US5237611A (en) * 1992-07-23 1993-08-17 Crest Industries, Inc. Encryption/decryption apparatus with non-accessible table of keys
JP3627384B2 (en) * 1996-01-17 2005-03-09 富士ゼロックス株式会社 Information processing apparatus with software protection function and information processing method with software protection function
AU734654B2 (en) * 1996-02-09 2001-06-21 Integrated Technologies Of America, Inc. Access control/crypto system
CN1161977C (en) * 1998-12-23 2004-08-11 皇家菲利浦电子有限公司 Apparatus for receiving programs
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JP2004501532A (en) * 2000-03-29 2004-01-15 ヴァディアム　テクノロジー　インコーポレイテッド One-time pad encryption with central key provision and key enterable characters
US7023858B2 (en) * 2000-04-14 2006-04-04 Sony Corporation Data delivery in set-top box
JP3742282B2 (en) * 2000-06-30 2006-02-01 株式会社東芝 Broadcast receiving method, broadcast receiving apparatus, information distribution method, and information distribution apparatus
US20020076204A1 (en) * 2000-12-18 2002-06-20 Toshihisa Nakano Key management device/method/program, recording medium, reproducing device/method, recording device, and computer-readable, second recording medium storing the key management program for copyright protection
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US7702904B2 (en) * 2002-11-15 2010-04-20 Nec Corporation Key management system and multicast delivery system using the same
US20040181811A1 (en) * 2003-03-13 2004-09-16 Rakib Selim Shlomo Thin DOCSIS in-band management for interactive HFC service delivery
US20060031873A1 (en) * 2004-08-09 2006-02-09 Comcast Cable Holdings, Llc System and method for reduced hierarchy key management

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6359986B1 (en) * 1997-08-06 2002-03-19 Matsushita Electric Industrial Co., Ltd. Encryption system capable of specifying a type of an encrytion device that produced a distribution medium
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words

Also Published As

Publication number Publication date
US20060274898A1 (en) 2006-12-07
WO2006132735A2 (en) 2006-12-14
US8050406B2 (en) 2011-11-01

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