KR100735761B1 - 제어 단어 보안 방법 및 장치 - Google Patents
제어 단어 보안 방법 및 장치 Download PDFInfo
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- KR100735761B1 KR100735761B1 KR1020017012383A KR20017012383A KR100735761B1 KR 100735761 B1 KR100735761 B1 KR 100735761B1 KR 1020017012383 A KR1020017012383 A KR 1020017012383A KR 20017012383 A KR20017012383 A KR 20017012383A KR 100735761 B1 KR100735761 B1 KR 100735761B1
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Classifications
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- 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
-
- 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
-
- 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 or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video 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
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2543—Billing, e.g. for subscription services
-
- 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
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
-
- 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
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Selective Calling Equipment (AREA)
- Circuits Of Receivers In General (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electrotherapy Devices (AREA)
Abstract
Description
독립 키를 지닌 채널의 수 | 채널 ID (3 바이트) | 16 바이트 세 개의 DES 암호화 된 서비스 키 | 16 바이트 세 개의 DES 암호화 된 서비스 키 | 총 바이트 수 |
현재 | 다음 | |||
20 | 60 | 320 | 320 | 700 |
50 | 150 | 800 | 800 | 1,750 |
100 | 300 | 1600 | 1600 | 3,500 |
200 | 600 | 3200 | 3200 | 7,000 |
400 | 1200 | 6400 | 6400 | 14,000 |
Claims (33)
- 디지털 멀티미디어 콘텐트를 디스크램블(descrambling)하는 방법으로서,암호화된 제어 데이터에 대한 대역외 요청을 헤드엔드에 보내는 단계와,스크램블 된 포맷의 디지털 프로그램 데이터를 디스크램블러 집적 회로에 의해 수신하는 단계와,암호화 된 제어 데이터를 상기 디스크램블러 집적 회로에 의해 수신하는 단계와,상기 디스크램블러(descrambler) 집적 회로에 영구적으로 저장된 고유키(key)를 사용하여 전적으로 상기 디스크램블러 집적 회로 내에서, 상기 암호화 된 제어 데이터를 해독하는(decrypting) 단계와,상기 해독된 제어 데이터를 사용하여 상기 디스크램블러 집적 회로에서, 상기 스크램블 된 디지털 프로그램 데이터를 디스크램블 하는 단계를포함하는, 디지털 멀티미디어 콘텐트의 디스크램블 방법.
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- 제 1 항에 있어서,암호화된 제어 데이터를 수신하기 전에, 스마트 카드의 레지스터(register) 회로에 저장된 키를 사용하여 상기 스마트 카드에서 상기 제어 데이터를 암호화하는 단계를 더 포함하며,상기 스마트 카드의 상기 레지스터 회로에 저장된 상기 키는 상기 디스크램블러 집적 회로 내에 영구적으로 저장된 키와 동등한, 디지털 멀티미디어 콘텐트의 디스크램블 방법.
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- 장치로서,스크램블 된 포맷의 디지털 프로그램 데이터와 암호화된 포맷의 제어 데이터를 디스크램블러 집적 회로에 의해 수신하는 수단과,암호화된 제어 데이터를 디스크램블러 집적 회로에 영구적으로 저장된 고유키를 사용해서, 전적으로 디스크램블러 집적 회로 내에서 해독하는 수단으로서, 제어 데이터 및 키가 디스크램블러 집적 회로 외부에서 암호화되지 않은 포맷으로 노출되는 것으로부터 예방되는, 해독 수단과,제어 데이터를 사용해서 디스크램블러 집적 회로 내에서, 스크램블된 디지털 프로그램 데이터를 디스크램블하는 수단으로서, 상기 디지털 프로그램 데이터는 스크램블된 디지털 프로그램 데이터의 수신을 위해 동조되는 적어도 하나의 채널 식별자, 디스크램블러 집적 회로 내에 저장된 키를 위치시키기 위한 식별자, 및 디지털 프로그램 데이터 식별자를 포함하는 자격 제어 메시지를 포함하는, 디스크램블 수단을 포함하는, 장치.
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- 장치로서,헤드엔드로 향하는 대역외 채널을 통해, 암호화된 서비스 키에 대한 요청을 송신하기 위한 송신기;암호화된 데이터를 수신하기 위한 제1 인터페이스; 및제1 인터페이스와 통신하는 디스크램블러 집적 회로로서,디스크램블러 집적 회로에 대해 고유하게 할당하게 된 그리고 겹쳐쓰기 될 수 없는 키를 영구적으로 저장하기 위한 메모리,암호화된 데이터를 전적으로 디스크램블러 집적 회로 내에서 상기 키를 사용해서 해독하기 위한 해독 로직, 및해독된 데이터를 사용해서, 인입하는 스크램블된 디지털 프로그램 데이터를 전적으로 디스크램블러 집적 회로 내에서 디스크램블하기 위한 디스크램블러를 포함하는, 디스크램블러 집적 회로를 포함하는, 장치.
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Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12680599P | 1999-03-30 | 1999-03-30 | |
US60/126,805 | 1999-03-30 | ||
US09/497,393 US6697489B1 (en) | 1999-03-30 | 2000-02-03 | Method and apparatus for securing control words |
US09/497,393 | 2000-02-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010110715A KR20010110715A (ko) | 2001-12-13 |
KR100735761B1 true KR100735761B1 (ko) | 2007-07-06 |
Family
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020017012383A KR100735761B1 (ko) | 1999-03-30 | 2000-02-29 | 제어 단어 보안 방법 및 장치 |
Country Status (9)
Country | Link |
---|---|
US (6) | US6697489B1 (ko) |
EP (1) | EP1163798B1 (ko) |
JP (1) | JP4991051B2 (ko) |
KR (1) | KR100735761B1 (ko) |
CN (1) | CN100361529C (ko) |
AT (1) | ATE268973T1 (ko) |
AU (1) | AU3505700A (ko) |
DE (1) | DE60011405T2 (ko) |
WO (1) | WO2000059222A1 (ko) |
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WO2000059222A1 (en) | 2000-10-05 |
DE60011405D1 (de) | 2004-07-15 |
CN1353909A (zh) | 2002-06-12 |
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DE60011405T2 (de) | 2005-06-16 |
AU3505700A (en) | 2000-10-16 |
KR20010110715A (ko) | 2001-12-13 |
US7925016B2 (en) | 2011-04-12 |
ATE268973T1 (de) | 2004-06-15 |
US20130322625A1 (en) | 2013-12-05 |
US20040151314A1 (en) | 2004-08-05 |
US9210382B2 (en) | 2015-12-08 |
US20100235624A1 (en) | 2010-09-16 |
US8533459B2 (en) | 2013-09-10 |
EP1163798B1 (en) | 2004-06-09 |
JP4991051B2 (ja) | 2012-08-01 |
US20100020963A1 (en) | 2010-01-28 |
US20150312525A1 (en) | 2015-10-29 |
JP2002540736A (ja) | 2002-11-26 |
EP1163798A1 (en) | 2001-12-19 |
US7302058B2 (en) | 2007-11-27 |
US9467658B2 (en) | 2016-10-11 |
CN100361529C (zh) | 2008-01-09 |
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