KR20030086617A - 데이터 프로세싱 시스템의 보안 방법 및 장치 - Google Patents
데이터 프로세싱 시스템의 보안 방법 및 장치 Download PDFInfo
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- KR20030086617A KR20030086617A KR10-2003-7012794A KR20037012794A KR20030086617A KR 20030086617 A KR20030086617 A KR 20030086617A KR 20037012794 A KR20037012794 A KR 20037012794A KR 20030086617 A KR20030086617 A KR 20030086617A
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- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
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- H—ELECTRICITY
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- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1863—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast comprising mechanisms for improved reliability, e.g. status reports
- H04L12/1877—Measures taken prior to transmission
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- H—ELECTRICITY
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- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/061—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer networks
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- H—ELECTRICITY
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- H04L63/068—Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- H—ELECTRICITY
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- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
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- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/041—Key generation or derivation
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
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- H04L2463/062—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying encryption of the keys
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- 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
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- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
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Abstract
Description
Claims (24)
- 전송 참여자에 고유한 등록 키를 결정하는 단계;제 1 키를 결정하는 단계;상기 제 1 키를 상기 등록 키로 암호화하는 단계;제 2 키를 결정하는 단계;상기 제 2 키를 상기 제 1 키로 암호화하는 단계; 및상기 제 1 및 제 2 키를 업데이트하는 단계를 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 1 항에 있어서,상기 업데이트하는 단계는,상기 제 1 키를 제 1 시간 주기 (time period) 에 따라 업데이트하는 단계; 및상기 제 2 키를 제 2 시간 주기에 따라 업데이트하는 단계를 더 포함하고,상기 제 2 시간 주기는 상기 제 1 시간 주기 미만인 것을 특징으로 하는 보안 전송 방법.
- 제 2 항에 있어서,상기 업데이트하는 단계는,업데이트된 제 1 키를 상기 등록 키로 암호화하는 단계; 및업데이트된 제 2 키를 상기 업데이트된 제 1 키로 암호화하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 2 항에 있어서,상기 제 2 키를 이용하여, 정보의 방송 스트림 (broadcast stream of information) 을 암호화하는 단계; 및상기 암호화된 정보의 방송 스트림을 전송하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 4 항에 있어서,상기 정보의 방송 스트림은 비디오 정보를 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 4 항에 있어서,상기 정보의 방송 스트림은 인터넷 프로토콜 패킷 (Internet Protocol packets) 을 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 3 항에 있어서,등록 키 정보 메시지를 계산하는 단계; 및상기 등록 키 정보 메시지를 전송하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 7 항에 있어서,상기 업데이트되고 암호화된 제 1 키에 대응하는 제 1 키 정보 메시지를 계산하는 단계; 및상기 제 1 키 정보 메시지를 전송하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 8 항에 있어서,상기 업데이트되고 암호화된 제 2 키에 대응하는 제 2 키 정보 메시지를 계산하는 단계; 및상기 제 2 키 정보 메시지를 전송하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 제 1 항에 있어서,상기 암호화된 제 1 키를 전송하는 단계; 및상기 암호화된 제 2 키를 전송하는 단계를 더 포함하는 것을 특징으로 하는 보안 전송 방법.
- 전송 참여자에 고유한 등록 키를 수신하는 단계;제 1 키를 수신하는 단계;상기 제 1 키를 상기 등록 키로 복호화하는 단계;제 2 키를 수신하는 단계;상기 제 2 키를 상기 제 1 키로 복호화하는 단계;정보의 방송 스트림을 수신하는 단계; 및상기 정보의 방송 스트림을 상기 제 2 키를 이용하여 복호화하는 단계를 포함하는 것을 특징으로 하는 전송의 보안 수신 방법.
- 제 11 항에 있어서,상기 제 1 키를 보안 메모리 저장 유닛에 저장하는 단계; 및상기 제 2 키를 메모리 저장 유닛에 저장하는 단계를 더 포함하는 것을 특징으로 하는 전송의 보안 수신 방법.
- 제 11 항에 있어서,상기 제 1 키를 제 1 키 정보 메시지로부터 리커버링하는 단계; 및상기 제 2 키를 제 2 키 정보 메시지로부터 리커버링하는 단계를 더 포함하는 것을 특징으로 하는 전송의 보안 수신 방법.
- 제 11 항에 있어서,상기 제 1 키를 제 1 시간 주기에 따라 업데이트하는 단계; 및상기 제 2 키를 제 2 시간 주기에 따라 업데이트하는 단계를 더 포함하는 것을 특징으로 하는 전송의 보안 수신 방법.
- 방송 서비스 옵션을 지원하는 무선 통신 시스템에서의 인프라스트럭처 소자 (infrastructure element) 로서,수신 회로;방송 메시지를 복호화하는 단기 키 (short-time key) 를 리커버링하는 사용자 식별 유닛; 및상기 단기 키를 적용하여 상기 방송 메시지를 복호화하는 이동 장비 유닛을 구비하고,상기 사용자 식별 유닛은,키 정보를 복호화하는 프로세싱 유닛; 및등록 키를 저장하는 메모리 저장 유닛을 구비하는 것을 특징으로 하는 인프라스트럭처 소자.
- 제 15 항에 있어서,상기 단기 키는 상기 사용자 식별 유닛에 의해 프로세싱되어 상기 이동 장비 유닛으로 전달되는 것을 특징으로 하는 인프라스트럭처 소자.
- 제 15 항에 있어서,상기 메모리 저장 유닛은 보안 메모리 저장 유닛인 것을 특징으로 하는 인프라스트럭처 소자.
- 제 15 항에 있어서,상기 메모리 저장 유닛은 방송 액세스 키를 저장하며,상기 프로세싱 유닛은 상기 방송 액세스 키를 이용하여 상기 단기 키를 복호화하는 것을 특징으로 하는 인프라스트럭처 소자.
- 제 18 항에 있어서,상기 단기 키는 제 1 주파수에서 업데이트되는 것을 특징으로 하는 인프라스트럭처 소자.
- 제 19 항에 있어서,상기 방송 액세스 키는 상기 제 1 주파수 미만의 제 2 주파수에서 업데이트되는 것을 특징으로 하는 인프라스트럭처 소자.
- 제 15 항에 있어서,상기 방송 서비스 옵션은 비디오 서비스인 것을 특징으로 하는 인프라스트럭처 소자.
- 전송 참여자에 고유한 등록 키를 결정하는 수단;제 1 키를 결정하는 수단;상기 제 1 키를 상기 등록 키로 암호화하는 수단;제 2 키를 결정하는 수단;상기 제 2 키를 상기 제 1 키로 암호화하는 수단; 및상기 제 1 및 제 2 키를 업데이트하는 수단을 구비하는 것을 특징으로 하는 무선 통신 시스템.
- 전송 참여자에 고유한 등록 키를 수신하는 수단;제 1 키를 수신하는 수단;상기 제 1 키를 상기 등록 키로 복호화하는 수단;제 2 키를 수신하는 수단;상기 제 2 키를 상기 제 1 키로 복호화하는 수단;정보의 방송 스트림을 수신하는 수단; 및상기 정보의 방송 스트림을 상기 제 2 키를 이용하여 복호화하는 수단을 구비하는 것을 특징으로 하는 인프라스트럭처 소자.
- 전송 참여자에 고유한 등록 키를 수신하는 명령어의 제 1 세트;제 1 키를 수신하는 명령어의 제 2 세트;상기 제 1 키를 상기 등록 키로 복호화하는 명령어의 제 3 세트;제 2 키를 수신하는 명령어의 제 4 세트;상기 제 2 키를 상기 제 1 키로 복호화하는 명령어의 제 5 세트;정보의 방송 스트림을 수신하는 명령어의 제 6 세트; 및상기 제 2 키를 이용하여 상기 정보의 방송 스트림을 복호화하는 명령어의 제 7 세트를 포함하는 것을 특징으로 하는 디지털 신호 저장 장치.
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JP2004532554A (ja) | 2004-10-21 |
US8121296B2 (en) | 2012-02-21 |
KR100886592B1 (ko) | 2009-03-05 |
EP1374477B1 (en) | 2017-03-08 |
CN1531800A (zh) | 2004-09-22 |
BRPI0208498B1 (pt) | 2016-06-21 |
HK1149673A1 (en) | 2011-10-07 |
EP1374477A1 (en) | 2004-01-02 |
CA2442656A1 (en) | 2002-10-10 |
WO2002080449A1 (en) | 2002-10-10 |
CN101860860B (zh) | 2014-03-12 |
US20020141591A1 (en) | 2002-10-03 |
TW550926B (en) | 2003-09-01 |
CN101860860A (zh) | 2010-10-13 |
CA2442656C (en) | 2012-02-07 |
JP4282992B2 (ja) | 2009-06-24 |
MXPA03008923A (es) | 2004-06-30 |
BR0208498A (pt) | 2006-05-23 |
EP2360888A1 (en) | 2011-08-24 |
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