KR20010110715A - 제어 단어 보안 방법 및 장치 - Google Patents
제어 단어 보안 방법 및 장치 Download PDFInfo
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- KR20010110715A KR20010110715A KR1020017012383A KR20017012383A KR20010110715A KR 20010110715 A KR20010110715 A KR 20010110715A KR 1020017012383 A KR1020017012383 A KR 1020017012383A KR 20017012383 A KR20017012383 A KR 20017012383A KR 20010110715 A KR20010110715 A KR 20010110715A
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- descrambler
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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
- H04N21/63—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)
- Train Traffic Observation, Control, And Security (AREA)
- Electrotherapy Devices (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
독립 키를 지닌 채널의 수 | 채널 ID(3 바이트) | 16 바이트세 개의 DES암호화 된서비스 키 | 16 바이트세 개의 DES암호화 된서비스 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 콘텐트 디스크램블(descrambling) 방법으로서,디스크램블러 집적 회로에서 스크램블 된 디지털 콘텐트를 수신하는 단계와,상기 디스크램블러 집적 회로에서 암호화 된 제어 단어를 수신하는 단계와,상기 디스크램블러(descrambler) 집적 회로에 저장된 키(key)를 사용하여 상기 암호화 된 제어 단어를 해독하는(decrypting) 단계와,상기 해독된 제어 단어를 사용하여 상기 디스크램블러 집적 회로에서 상기 스크램블 된 디지털 콘텐트를 디스크램블 하는 단계를포함하는, 디스크램블 방법.
- 제 1 항에 있어서, 상기 디지털 콘텐트는 텔레비전 전송에 포함된 콘텐트인, 디스크램블 방법.
- 제 1 항에 있어서, 상기 디지털 콘텐트는 인터넷으로부터 다운로드 된 콘텐트인, 디스크램블 방법.
- 제 1 항에 있어서, 상기 제어 단어는 세 개의 DES를 사용하여 해독되는, 디스크램블 방법.
- 제 1 항에 있어서, 상기 암호화 된 제어 단어는 스마트 카드(smart card)로부터 수신되는, 디스크램블 방법.
- 제 5 항에 있어서, 상기 스마트 카드의 레지스터(register) 회로에 저장된 키를 사용하여 상기 스마트 카드에서 상기 제어 단어를 암호화하는 단계를 더 포함하며,여기서, 상기 스마트 카드의 상기 레지스터 회로에 저장된 상기 키는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는, 디스크램블 방법.
- 제 1 항에 있어서, 상기 암호화 된 제어 단어는 네트워크에 의해 상기 디스크램블러 집적 회로에 연결된 제어 개체(controlling entity)로부터 수신되는, 디스크램블 방법.
- 제 7 항에 있어서, 상기 제어 개체는 헤드엔드 서버(headend server), 업링크 또는 방송국을 포함하는 그룹으로부터 선택되는, 디스크램블 방법.
- 제 7 항에 있어서, 상기 제어 단어는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는 키를 사용하여 상기 제어 개체에 의해 암호화되는, 디스크램블 방법.
- 제 1 항에 있어서, 상기 암호화 된 제어 단어는 모듈(module)로부터 수신되는, 디스크램블 방법.
- 제 10 항에 있어서, 상기 모듈은 NRSS-A 모듈, NRSS-B 모듈, POD 모듈 및 다른 CA 소자를 포함하는 그룹으로부터 선택되는, 디스크램블 방법.
- 디지털 콘텐트 디스크램블 장치로서,디스크램블러 집적 회로에서 스크램블 된 디지털 콘텐트를 수신하는 수단과,상기 디스크램블러 집적 회로에서 암호화 된 제어 단어를 수신하는 수단과,상기 디스크램블러 집적 회로에 저장된 키를 사용하여 상기 암호화 된 제어 단어를 해독하는 수단과,상기 해독된 제어 단어를 사용하여 상기 디스크램블러 집적 회로에서 상기 스크램블 된 디지털 콘텐트를 디스크램블 하는 수단을포함하는, 디스크램블 장치.
- 제 12 항에 있어서, 상기 디지털 콘텐트는 텔레비젼 전송에 포함된 콘텐트인, 디스크램블 장치.
- 제 12 항에 있어서, 상기 디지털 콘텐트는 인터넷으로부터 다운로드 된 콘텐트인, 디스크램블 장치.
- 제 12 항에 있어서, 상기 제어 단어는 세 개의 DES를 사용하여 해독되는, 디스크램블 장치.
- 제 12 항에 있어서, 상기 암호화 된 제어 단어는 스마트 카드로부터 수신되는, 디스크램블 장치.
- 제 16 항에 있어서, 상기 스마트 카드의 레지스터 회로에 저장된 키를 사용하여 상기 스마트 카드에서 상기 제어 단어를 암호화하는 단계를 더 포함하며,여기서, 상기 스마트 카드의 상기 레지스터 회로에 저장된 상기 키는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는, 디스크램블 장치.
- 제 12 항에 있어서, 상기 암호화 된 제어 단어는 네트워크에 의해 상기 디스크램블러 집적 회로에 연결된 제어 개체로부터 수신되는, 디스크램블 장치.
- 제 18 항에 있어서, 상기 제어 개체는 헤드엔드 서버, 업링크 또는 방송국을 포함하는 그룹으로부터 선택되는, 디스크램블 장치.
- 제 12 항에 있어서, 상기 제어 단어는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는 키를 사용하여 상기 제어 개체에 의해 암호화되는, 디스크램블 장치.
- 제 20 항에 있어서, 상기 암호화 된 제어 단어는 모듈로부터 수신되는, 디스크램블 장치.
- 제 21 항에 있어서, 상기 모듈은 NRSS-A 모듈, NRSS-B 모듈, POD 모듈 및 다른 CA 소자를 포함하는 그룹으로부터 선택되는, 디스크램블 장치.
- 디지털 콘텐트 디스크램블 장치로서,디스크램블러 집적 회로와,디스크램블러 집적 회로에서 스크램블 된 디지털 콘텐트를 수신하고, 상기 디스크램블러 집적 회로에서 암호화 된 제어 단어를 수신하는 수신기와,상기 디스크램블러 집적 회로에 저장된 키를 사용하여 상기 암호화 된 제어 단어를 해독하는 해독기와,상기 해독된 제어 단어를 사용하여 상기 디스크램블러 집적 회로에서 상기 스크램블 된 디지털 콘텐트를 디스크램블 하는 디스크램블러를포함하는, 디스크램블 장치.
- 제 23 항에 있어서, 상기 디지털 콘텐트는 텔레비젼 전송에 포함된 콘텐트인, 디스크램블 장치.
- 제 23 항에 있어서, 상기 디지털 콘텐트는 인터넷으로부터 다운로드 된 콘텐트인, 디스크램블 장치.
- 제 23 항에 있어서, 상기 제어 단어는 세 개의 DES를 사용하여 암호 해독되는, 디스크램블 장치.
- 제 23 항에 있어서, 상기 암호화 된 제어 단어는 스마트 카드로부터 수신되는, 디스크램블 장치.
- 제 27 항에 있어서, 상기 스마트 카드의 레지스터 회로에 저장된 키를 사용하여 상기 스마트 카드에서 상기 제어 단어를 암호화하는 단계를 더 포함하며,여기서, 상기 스마트 카드의 상기 레지스터 회로에 저장된 상기 키는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는, 디스크램블 장치.
- 제 23 항에 있어서, 상기 암호화 된 제어 단어는 네트워크에 의해 상기 디스크램블러 집적 회로에 연결된 제어 개체로부터 수신되는, 디스크램블 장치.
- 제 29 항에 있어서, 상기 제어 단어는 상기 디스크램블러 집적 회로의 상기 레지스터 회로에 저장된 상기 키와 결합되는 키를 사용하여 상기 제어 개체에 의해 암호화되는, 디스크램블 장치.
- 제 23 항에 있어서, 상기 암호화 된 제어 단어는 모듈로부터 수신되는, 디스크램블 장치.
- 제 31 항에 있어서, 상기 모듈은 NRSS-A 모듈, NRSS-B 모듈, POD 모듈 및 다른 CA 소자를 포함하는 그룹으로부터 선택되는, 디스크램블 장치.
- 제 29 항에 있어서, 상기 제어 개체는 헤드엔드 서버, 업링크 또는 방송국을 포함하는 그룹으로부터 선택되는, 디스크램블 장치.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100888592B1 (ko) * | 2003-02-03 | 2009-03-16 | 삼성전자주식회사 | 방송신호 수신 장치 및 방법 |
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DE60011405T2 (de) | 2005-06-16 |
US20040151314A1 (en) | 2004-08-05 |
US9467658B2 (en) | 2016-10-11 |
US7302058B2 (en) | 2007-11-27 |
AU3505700A (en) | 2000-10-16 |
EP1163798A1 (en) | 2001-12-19 |
US7925016B2 (en) | 2011-04-12 |
US8533459B2 (en) | 2013-09-10 |
WO2000059222A1 (en) | 2000-10-05 |
KR100735761B1 (ko) | 2007-07-06 |
CN1353909A (zh) | 2002-06-12 |
CN100361529C (zh) | 2008-01-09 |
DE60011405D1 (de) | 2004-07-15 |
US9210382B2 (en) | 2015-12-08 |
JP4991051B2 (ja) | 2012-08-01 |
US20150312525A1 (en) | 2015-10-29 |
US20100235624A1 (en) | 2010-09-16 |
ATE268973T1 (de) | 2004-06-15 |
US20130322625A1 (en) | 2013-12-05 |
US6697489B1 (en) | 2004-02-24 |
US20100020963A1 (en) | 2010-01-28 |
EP1163798B1 (en) | 2004-06-09 |
JP2002540736A (ja) | 2002-11-26 |
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