WO2005004458A3 - Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system - Google Patents

Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system Download PDF

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Publication number
WO2005004458A3
WO2005004458A3 PCT/US2004/019508 US2004019508W WO2005004458A3 WO 2005004458 A3 WO2005004458 A3 WO 2005004458A3 US 2004019508 W US2004019508 W US 2004019508W WO 2005004458 A3 WO2005004458 A3 WO 2005004458A3
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WO
WIPO (PCT)
Prior art keywords
encrypted
stream
conditional access
partial dual
overlay system
Prior art date
Application number
PCT/US2004/019508
Other languages
French (fr)
Other versions
WO2005004458A2 (en
Inventor
Howard G Pinder
William D Woodward Jr
Jonathan Bradford Evans
Anthony J Wasilewski
Original Assignee
Scientific Atlanta
Howard G Pinder
William D Woodward Jr
Jonathan Bradford Evans
Anthony J Wasilewski
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
Priority claimed from US10/602,986 external-priority patent/US8548166B2/en
Application filed by Scientific Atlanta, Howard G Pinder, William D Woodward Jr, Jonathan Bradford Evans, Anthony J Wasilewski filed Critical Scientific Atlanta
Priority to CA2544623A priority Critical patent/CA2544623C/en
Priority to MXPA05014208A priority patent/MXPA05014208A/en
Priority to KR1020057024790A priority patent/KR101096975B1/en
Priority to EP04755595.8A priority patent/EP1656792B1/en
Priority to JP2006517390A priority patent/JP2007526664A/en
Publication of WO2005004458A2 publication Critical patent/WO2005004458A2/en
Publication of WO2005004458A3 publication Critical patent/WO2005004458A3/en

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Classifications

    • 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
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network 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
    • H04L63/0478—Network 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 applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/226—Characteristics of the server or Internal components of the server
    • H04N21/2265—Server identification by a unique number or address, e.g. serial number
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • 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
    • H04N21/23897—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption by partially encrypting, e.g. encrypting only the ending portion of a movie
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
    • 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
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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
    • 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
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/008—Support of video
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management

Abstract

The present invention is directed towards providing a partial dual-encrypted stream in a conditional access overlay system. The headend equipment includes an aligner, identifier, and remapper (AIR) device (615) that receives a clear stream and one or two encrypted streams, where the two encrypted streams have been encrypted by two different encryption schemes. The AIR device (615) identifies critical packets associated with the clear stream and subsequently allows two encrypted streams to pass and drops the critical packets of the clear stream. A multiplexer (640) then combines a percentage of the non-critical packets of the clear stream and the critical packets of the two encrypted streams to provide the partial dual-encrypted stream.
PCT/US2004/019508 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system WO2005004458A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2544623A CA2544623C (en) 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
MXPA05014208A MXPA05014208A (en) 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system.
KR1020057024790A KR101096975B1 (en) 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual encrypted stream in a conditional access overlay system
EP04755595.8A EP1656792B1 (en) 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
JP2006517390A JP2007526664A (en) 2003-06-25 2004-06-18 Method and apparatus for providing a partially dual encrypted stream in a conditional access overlay system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/602,986 2003-06-25
US10/602,986 US8548166B2 (en) 1995-04-03 2003-06-25 Method for partially encrypting program data
US10/629,839 US7224798B2 (en) 1995-04-03 2003-07-30 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US10/629,839 2003-07-30

Publications (2)

Publication Number Publication Date
WO2005004458A2 WO2005004458A2 (en) 2005-01-13
WO2005004458A3 true WO2005004458A3 (en) 2006-05-18

Family

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Family Applications (1)

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PCT/US2004/019508 WO2005004458A2 (en) 2003-06-25 2004-06-18 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system

Country Status (7)

Country Link
US (2) US7224798B2 (en)
EP (1) EP1656792B1 (en)
JP (1) JP2007526664A (en)
KR (1) KR101096975B1 (en)
CA (1) CA2544623C (en)
MX (1) MXPA05014208A (en)
WO (1) WO2005004458A2 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6937729B2 (en) * 1995-04-03 2005-08-30 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US7224798B2 (en) * 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US8548166B2 (en) * 1995-04-03 2013-10-01 Anthony J. Wasilewski Method for partially encrypting program data
US7515712B2 (en) * 1997-08-01 2009-04-07 Cisco Technology, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
US6697489B1 (en) 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7730300B2 (en) 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US7565546B2 (en) * 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7218738B2 (en) * 2002-01-02 2007-05-15 Sony Corporation Encryption and content control in a digital broadcast system
US7292691B2 (en) * 2002-01-02 2007-11-06 Sony Corporation Progressive video refresh slice detection
US7155012B2 (en) * 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7292690B2 (en) * 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US7724907B2 (en) 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US8667525B2 (en) 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
EP1582023A4 (en) * 2003-03-27 2007-02-28 Nds Ltd Improved cfm mode system
US20050097597A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Hybrid storage of video on demand content
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US8396216B2 (en) 2003-11-21 2013-03-12 Howard G. Pinder Partial dual-encryption using program map tables
US7490236B2 (en) 2004-01-14 2009-02-10 Cisco Technology, Inc. Conditional access overlay partial encryption using MPEG transport continuity counter
US20060047601A1 (en) * 2004-08-25 2006-03-02 General Instrument Corporation Method and apparatus for providing channel key data
US7675872B2 (en) 2004-11-30 2010-03-09 Broadcom Corporation System, method, and apparatus for displaying pictures
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
EP2579497A1 (en) 2005-05-02 2013-04-10 Nds Limited Native scrambling system
US20070006253A1 (en) * 2005-06-29 2007-01-04 Pinder Howard G Partial pre-encryption with network-based packet sorting
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7983417B2 (en) * 2006-05-15 2011-07-19 Buchen Neil B System and method for dynamically allocating stream identifiers in a multi-encryption transport system
US8275132B2 (en) 2006-05-15 2012-09-25 Buchen Neil B System and method for dynamically allocating stream identifiers in a multi-encryption transport system
US7965839B2 (en) * 2008-02-19 2011-06-21 Sony Corporation Encryption system for satellite delivered television
US20090242653A1 (en) * 2008-03-27 2009-10-01 Needham Robert M Enviromentally distinctive cabin design and integrated recovery system
EP2219374A1 (en) * 2009-02-13 2010-08-18 Irdeto Access B.V. Securely providing a control word from a smartcard to a conditional access module
EP2697979B1 (en) * 2011-04-15 2016-09-28 Nagravision S.A. Method to identify the origin of a security module in pay-tv decoder system
US9008308B2 (en) * 2012-02-08 2015-04-14 Vixs Systems, Inc Container agnostic decryption device and methods for use therewith
CA2865548C (en) 2012-03-01 2021-03-02 Ologn Technologies Ag Systems, methods and apparatuses for the secure transmission and restricted use of media content
US9559845B2 (en) 2012-03-01 2017-01-31 Ologn Technologies Ag Systems, methods and apparatuses for the secure transmission of media content
CN111954047A (en) * 2019-05-17 2020-11-17 武汉佳世创科技有限公司 Method and device for descrambling two paths of code streams by single CAM card

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144669A (en) * 1987-09-14 1992-09-01 British Telecommunications Public Limited Company Method of communicating digital signals and receiver for use with such method
US20030026423A1 (en) * 2001-06-06 2003-02-06 Unger Robert Allan Critical packet partial encryption

Family Cites Families (144)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870474A (en) * 1995-12-04 1999-02-09 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
US5742677A (en) * 1995-04-03 1998-04-21 Scientific-Atlanta, Inc. Information terminal having reconfigurable memory
US6292568B1 (en) 1966-12-16 2001-09-18 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US4150404A (en) 1975-07-08 1979-04-17 U.S. Philips Corporation Device for transferring digital information
US4155042A (en) * 1977-10-31 1979-05-15 Permut Alan R Disaster alert system
US4405829A (en) * 1977-12-14 1983-09-20 Massachusetts Institute Of Technology Cryptographic communications system and method
US4862268A (en) 1980-03-31 1989-08-29 General Instrument Corporation Addressable cable television control system with video format data transmission
US4358672A (en) * 1980-05-16 1982-11-09 The Telemine Company, Inc. Pay per view television control device
USRE33808E (en) * 1980-10-21 1992-01-28 Information Resources, Inc. Cable television with multi-event signal substitution
US4388643A (en) * 1981-04-06 1983-06-14 Northern Telecom Limited Method of controlling scrambling and unscrambling in a pay TV system
US4694490A (en) 1981-11-03 1987-09-15 Harvey John C Signal processing apparatus and methods
USRE33189E (en) * 1981-11-19 1990-03-27 Communications Satellite Corporation Security system for SSTV encryption
US4531020A (en) * 1982-07-23 1985-07-23 Oak Industries Inc. Multi-layer encryption system for the broadcast of encrypted information
US4613901A (en) * 1983-05-27 1986-09-23 M/A-Com Linkabit, Inc. Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals
US4736422A (en) * 1983-06-30 1988-04-05 Independent Broadcasting Authority Encrypted broadcast television system
US4658093A (en) * 1983-07-11 1987-04-14 Hellman Martin E Software distribution system
US4600921A (en) * 1983-10-19 1986-07-15 Zenith Radio Corporation Full-field teletext system with dynamic addressability
US4649533A (en) * 1983-10-25 1987-03-10 Keycom Electronic Publishing Method and apparatus for retrieving remotely located information
US4599647A (en) 1983-11-03 1986-07-08 General Instrument Corporation Receiver with interface for interaction with controller-decoder
US4712238A (en) * 1984-06-08 1987-12-08 M/A-Com Government Systems, Inc. Selective-subscription descrambling
EP0175487A3 (en) * 1984-08-23 1989-03-08 Btg International Limited Software protection device
JPS6181043A (en) * 1984-09-28 1986-04-24 Fujitsu Ltd Cipher processing system of packet communication
US4887296A (en) * 1984-10-26 1989-12-12 Ricoh Co., Ltd. Cryptographic system for direct broadcast satellite system
US5036537A (en) * 1984-11-19 1991-07-30 General Instrument Corp. Geographic black-out method for direct broadcast satellite system
US4982430A (en) * 1985-04-24 1991-01-01 General Instrument Corporation Bootstrap channel security arrangement for communication network
US4885777A (en) * 1985-09-04 1989-12-05 Hitachi, Ltd. Electronic transaction system
US5018196A (en) * 1985-09-04 1991-05-21 Hitachi, Ltd. Method for electronic transaction with digital signature
US4718107A (en) 1986-02-14 1988-01-05 Rca Corporation Parental control for CATV converters
US4712239A (en) * 1986-06-16 1987-12-08 General Instrument Corporation Security arrangement for downloadable cable television converters
US4866770A (en) * 1986-07-08 1989-09-12 Scientific Atlanta, Inc. Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
US4937866A (en) 1986-08-13 1990-06-26 U.S. Philips Corporation System for decoding transmitted scrambled signals
US4837820A (en) 1986-10-17 1989-06-06 Zenith Electronics Corporation Hybrid CATV scrambling system
DE3642629A1 (en) * 1986-12-13 1988-06-23 Grundig Emv SYSTEM FOR PROCESSING ENCRYPTED TRANSFER INFORMATION
EP0287720B1 (en) * 1987-04-22 1992-01-08 International Business Machines Corporation Management of cryptographic keys
US4864615A (en) * 1988-05-27 1989-09-05 General Instrument Corporation Reproduction of secure keys by using distributed key generation data
NL8900307A (en) 1989-02-08 1990-09-03 Philips Nv PUBLIC COMMUNICATION SYSTEM WITH DISTRIBUTED STATIONS, AND STATION AND SUBSTATIONS FOR USE IN SUCH A COMMUNICATION SYSTEM.
US5175765A (en) * 1989-05-09 1992-12-29 Digital Equipment Corporation Robust data broadcast over a distributed network with malicious failures
US5151782A (en) * 1989-05-17 1992-09-29 Reiss Media Enterprises Control system for satellite delivered pay-per-view television system
US5003591A (en) * 1989-05-25 1991-03-26 General Instrument Corporation Functionally modifiable cable television converter system
US5081678A (en) 1989-06-28 1992-01-14 Digital Equipment Corporation Method for utilizing an encrypted key as a key identifier in a data packet in a computer network
JP2606419B2 (en) * 1989-08-07 1997-05-07 松下電器産業株式会社 Cryptographic communication system and cryptographic communication method
US5155591A (en) * 1989-10-23 1992-10-13 General Instrument Corporation Method and apparatus for providing demographically targeted television commercials
US5282249A (en) * 1989-11-14 1994-01-25 Michael Cohen System for controlling access to broadcast transmissions
US4993068A (en) * 1989-11-27 1991-02-12 Motorola, Inc. Unforgeable personal identification system
US5237610A (en) * 1990-02-01 1993-08-17 Scientific-Atlanta, Inc. Independent external security module for a digitally upgradeable television signal decoder
US5029207A (en) * 1990-02-01 1991-07-02 Scientific-Atlanta, Inc. External security module for a television signal decoder
US5073935A (en) * 1990-12-17 1991-12-17 Jose Pastor Method for secure communication
KR930005441B1 (en) * 1991-05-03 1993-06-21 삼성전자 주식회사 Tv receivers selection control circuit
US5235643A (en) * 1991-05-21 1993-08-10 Anderson Steven E Satellite receiver retuning system
FR2680589A1 (en) * 1991-08-19 1993-02-26 France Telecom METHOD OF TRANSMITTING AND RECEIVING CUSTOM PROGRAMS.
US5142578A (en) * 1991-08-22 1992-08-25 International Business Machines Corporation Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors
US5282248A (en) * 1991-09-20 1994-01-25 Dejoy Victor P Time limited signal conduction system
US5231664A (en) 1991-11-14 1993-07-27 Zenith Electronics Corporation Cable system having multiple barkering
US5231665A (en) * 1991-11-20 1993-07-27 Zenith Electronics Corporation Cable television system having dynamic market code shuffling
US5249230A (en) * 1991-11-21 1993-09-28 Motorola, Inc. Authentication system
US5432542A (en) * 1992-08-31 1995-07-11 Television Computer, Inc. Television receiver location identification
US5565909A (en) * 1992-08-31 1996-10-15 Television Computer, Inc. Method of identifying set-top receivers
US5402490A (en) * 1992-09-01 1995-03-28 Motorola, Inc. Process for improving public key authentication
US5243652A (en) * 1992-09-30 1993-09-07 Gte Laboratories Incorporated Location-sensitive remote database access control
US5359601A (en) 1992-10-30 1994-10-25 Scientific-Atlanta, Inc. Apparatus providing dynamic virtual service selection in a multi-service communications system
US5418782A (en) * 1992-10-30 1995-05-23 Scientific-Atlanta, Inc. Methods and apparatus for providing virtual service selection in a multi-service communications system
US5400401A (en) * 1992-10-30 1995-03-21 Scientific Atlanta, Inc. System and method for transmitting a plurality of digital services
FR2698510B1 (en) * 1992-11-26 1994-12-23 Schlumberger Ind Sa Communication network.
US5341425A (en) * 1992-12-02 1994-08-23 Scientific Atlanta, Inc. Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site
US5465299A (en) * 1992-12-03 1995-11-07 Hitachi, Ltd. Electronic document processing system and method of forming digital signature
US5523781A (en) 1993-02-11 1996-06-04 Precision Industries, Incorporated System for controlling television and billing for its use
US5381477A (en) * 1993-02-16 1995-01-10 Scientific-Atlanta, Inc. Method of selecting cable television converter groups
FR2703552A1 (en) * 1993-03-31 1994-10-07 Philips Electronics Nv Method and apparatus for scrambling and descrambling a specific television program
US5285497A (en) * 1993-04-01 1994-02-08 Scientific Atlanta Methods and apparatus for scrambling and unscrambling compressed data streams
US5381481A (en) * 1993-08-04 1995-01-10 Scientific-Atlanta, Inc. Method and apparatus for uniquely encrypting a plurality of services at a transmission site
US5506904A (en) * 1993-08-04 1996-04-09 Scientific-Atlanta, Inc. System and method for transmitting and receiving variable length authorization control for digital services
IL106746A (en) * 1993-08-19 1997-02-18 News Datacom Ltd CATV systems
IL106796A (en) 1993-08-25 1997-11-20 Algorithmic Res Ltd Broadcast encryption
US5440633A (en) * 1993-08-25 1995-08-08 International Business Machines Corporation Communication network access method and system
US5499295A (en) * 1993-08-31 1996-03-12 Ericsson Inc. Method and apparatus for feature authorization and software copy protection in RF communications devices
US5585866A (en) 1993-09-09 1996-12-17 Miller; Larry Electronic television program guide schedule system and method including virtual channels
US5497422A (en) * 1993-09-30 1996-03-05 Apple Computer, Inc. Message protection mechanism and graphical user interface therefor
US5343527A (en) * 1993-10-27 1994-08-30 International Business Machines Corporation Hybrid encryption method and system for protecting reusable software components
US5488410A (en) * 1993-10-29 1996-01-30 Telectronics Pacing Systems, Inc. System and method for disk software publishers to control disk distribution
US5481542A (en) * 1993-11-10 1996-01-02 Scientific-Atlanta, Inc. Interactive information services control system
US5499294A (en) * 1993-11-24 1996-03-12 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Digital camera with apparatus for authentication of images produced from an image file
US5425101A (en) * 1993-12-03 1995-06-13 Scientific-Atlanta, Inc. System and method for simultaneously authorizing multiple virtual channels
US5519780A (en) * 1993-12-03 1996-05-21 Scientific-Atlanta, Inc. System and method for providing compressed digital teletext services and teletext support services
US5787172A (en) * 1994-02-24 1998-07-28 The Merdan Group, Inc. Apparatus and method for establishing a cryptographic link between elements of a system
US5420866A (en) * 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
FR2718594B1 (en) 1994-04-06 1996-04-26 France Telecom Method for broadcasting programs with progressive conditional access and separating the flow of information.
US5481613A (en) * 1994-04-15 1996-01-02 Northern Telecom Limited Computer network cryptographic key distribution system
US5619501A (en) 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
US5734589A (en) 1995-01-31 1998-03-31 Bell Atlantic Network Services, Inc. Digital entertainment terminal with channel mapping
US5473692A (en) * 1994-09-07 1995-12-05 Intel Corporation Roving software license for a hardware agent
US5557678A (en) * 1994-07-18 1996-09-17 Bell Atlantic Network Services, Inc. System and method for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem
US5557765A (en) * 1994-08-11 1996-09-17 Trusted Information Systems, Inc. System and method for data recovery
MY125706A (en) 1994-08-19 2006-08-30 Thomson Consumer Electronics High speed signal processing smart card
US5740246A (en) * 1994-12-13 1998-04-14 Mitsubishi Corporation Crypt key system
US5550984A (en) * 1994-12-07 1996-08-27 Matsushita Electric Corporation Of America Security system for preventing unauthorized communications between networks by translating communications received in ip protocol to non-ip protocol to remove address and routing services information
MX9704961A (en) 1994-12-30 1997-10-31 Thomson Consumer Electronics Modem with automatic callback provisions.
FR2729521A1 (en) 1995-01-17 1996-07-19 Thomson Consumer Electronics METHOD FOR PROTECTING MANAGEMENT MESSAGES OF AN ACCESS CONTROL SYSTEM AND DEVICE FOR IMPLEMENTING SAID METHOD
US5590202A (en) * 1995-01-18 1996-12-31 Zenith Electronics Corporation Countdown system for conditional access module
US5568554A (en) * 1995-01-31 1996-10-22 Digital Equipment Corporation Method for improving the processing and storage performance of digital signature schemes
US5559889A (en) * 1995-03-31 1996-09-24 International Business Machines Corporation System and methods for data encryption using public key cryptography
US6005938A (en) * 1996-12-16 1999-12-21 Scientific-Atlanta, Inc. Preventing replay attacks on digital information distributed by network service providers
US6560340B1 (en) 1995-04-03 2003-05-06 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
US6424717B1 (en) 1995-04-03 2002-07-23 Scientific-Atlanta, Inc. Encryption devices for use in a conditional access system
US20040136532A1 (en) 1995-04-03 2004-07-15 Pinder Howard G. Partial dual-encrypted stream utilizing program map tables
US6937729B2 (en) 1995-04-03 2005-08-30 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US6157719A (en) 1995-04-03 2000-12-05 Scientific-Atlanta, Inc. Conditional access system
US6252964B1 (en) 1995-04-03 2001-06-26 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
US6246767B1 (en) 1995-04-03 2001-06-12 Scientific-Atlanta, Inc. Source authentication of download information in a conditional access system
US7224798B2 (en) 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US8548166B2 (en) 1995-04-03 2013-10-01 Anthony J. Wasilewski Method for partially encrypting program data
US6108365A (en) * 1995-05-05 2000-08-22 Philip A. Rubin And Associates, Inc. GPS data access system
US5621793A (en) * 1995-05-05 1997-04-15 Rubin, Bednarek & Associates, Inc. TV set top box using GPS
US5600378A (en) 1995-05-22 1997-02-04 Scientific-Atlanta, Inc. Logical and composite channel mapping in an MPEG network
US5583939A (en) * 1995-06-01 1996-12-10 Chung N. Chang Secure, swift cryptographic key exchange
US5671276A (en) * 1995-07-21 1997-09-23 General Instrument Corporation Of Delaware Method and apparatus for impulse purchasing of packaged information services
US6035037A (en) 1995-08-04 2000-03-07 Thomson Electronic Consumers, Inc. System for processing a video signal via series-connected high speed signal processing smart cards
KR0166923B1 (en) 1995-09-18 1999-03-20 구자홍 Method and apparatus of preventing an illegal watching and copying in a digital broadcasting system
ES2206594T3 (en) 1995-10-31 2004-05-16 Koninklijke Philips Electronics N.V. CONDITIONAL ACCESS DISPLACED IN TIME.
US6067564A (en) 1995-10-31 2000-05-23 Sanyo Electric Co., Ltd. Pay broadcasting receiver apparatus
US5764770A (en) * 1995-11-07 1998-06-09 Trimble Navigation Limited Image authentication patterning
US5680458A (en) 1995-11-14 1997-10-21 Microsoft Corporation Root key compromise recovery
US5675649A (en) * 1995-11-30 1997-10-07 Electronic Data Systems Corporation Process for cryptographic key generation and safekeeping
US5857020A (en) * 1995-12-04 1999-01-05 Northern Telecom Ltd. Timed availability of secured content provisioned on a storage medium
DE69638033D1 (en) 1995-12-29 2009-11-05 Scientific Atlanta PROCESS AND DEVICE FOR CONDITIONAL ACCESS IN CONNECTOR-ORIENTED INTERACTIVE NETWORKS WITH MULTIPLE SERVICE PROVIDERS
US5870475A (en) 1996-01-19 1999-02-09 Northern Telecom Limited Facilitating secure communications in a distribution network
US5828419A (en) 1996-02-29 1998-10-27 Hughes Electronics Method and apparatus for generating television program guides utilizing icons
US5969748A (en) 1996-05-29 1999-10-19 Starsight Telecast, Inc. Television schedule system with access control
US5862220A (en) * 1996-06-03 1999-01-19 Webtv Networks, Inc. Method and apparatus for using network address information to improve the performance of network transactions
US6041123A (en) 1996-07-01 2000-03-21 Allsoft Distributing Incorporated Centralized secure communications system
US5793427A (en) 1996-10-11 1998-08-11 Divicom Inc. Processing system with delta-based video data encoding
US5907619A (en) 1996-12-20 1999-05-25 Intel Corporation Secure compressed imaging
US5920626A (en) * 1996-12-20 1999-07-06 Scientific-Atlanta, Inc. Analog/digital system for television services
JP2001513587A (en) * 1997-07-31 2001-09-04 サイエンティフィック−アトランタ・インコーポレーテッド Verification of source of information program in conditional access system
JP2003521718A (en) 1997-08-01 2003-07-15 サイエンティフィック−アトランタ， インコーポレイテッド Source authentication of download information in conditional access system
US7515712B2 (en) 1997-08-01 2009-04-07 Cisco Technology, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7216358B1 (en) 1999-11-19 2007-05-08 Smardtv Sa Digital television conditional access methods and apparatus with multiple data transport mechanism
JP2002271322A (en) * 2001-03-13 2002-09-20 Mitsubishi Electric Corp Scrambling method, transmitter/receiver and receiver using that method
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7092616B2 (en) * 2001-07-19 2006-08-15 Sony Electronics Inc. Method and apparatus for copy protecting video content and producing a reduced quality reproduction of video content for personal use
JP4000809B2 (en) * 2001-10-10 2007-10-31 ソニー株式会社 Encryption / decryption device
US7376233B2 (en) 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US8396216B2 (en) 2003-11-21 2013-03-12 Howard G. Pinder Partial dual-encryption using program map tables
US7490236B2 (en) 2004-01-14 2009-02-10 Cisco Technology, Inc. Conditional access overlay partial encryption using MPEG transport continuity counter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144669A (en) * 1987-09-14 1992-09-01 British Telecommunications Public Limited Company Method of communicating digital signals and receiver for use with such method
US20030026423A1 (en) * 2001-06-06 2003-02-06 Unger Robert Allan Critical packet partial encryption

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1656792A4 *

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US20040139337A1 (en) 2004-07-15
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US7805399B2 (en) 2010-09-28
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US20070286417A1 (en) 2007-12-13
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