IEMEK Journal of Embedded Systems and Applications (대한임베디드공학회논문지)

Institute of Embedded Engineering of Korea (대한임베디드공학회)
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A Key Management Scheme for IPTV CAS in DOCSIS 3.0 Security System

DOCSIS 3.0 보안 시스템 기반 IPTV CAS를 위한 키 관리 기법

  • 구한승 (한국전자통신연구원(ETRI), 방송시스템연구부) ;
  • 이진환 (한국전자통신연구원(ETRI), 방송시스템연구부) ;
  • 송윤정 (한국전자통신연구원(ETRI), 방송시스템연구부) ;
  • 권오형 (한국전자통신연구원(ETRI), 방송시스템연구부) ;
  • 이수인 (한국전자통신연구원(ETRI), 방송시스템연구부)
  • Received : 2008.11.05
  • Accepted : 2008.12.22
  • Published : 2008.12.30
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Abstract

A novel scheme is presented for Traffic Encryption Key (TEK) rekeying with low communication overhead for an Internet Protocol television (IPTV) conditional access system over Data-Over-Cable Service Interface Specifications (DOCSIS) 3.0. The proposed scheme utilizes the DOCSIS system synchronization for periodic TEK rekeying instead of a conventional TEK rekeying negotiation process. Analysis shows that the communication overhead is only 0.012 Kbps when TEK rekeying frequency is 1 second.

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