A Key Management Scheme for IPTV CAS in DOCSIS 3.0 Security System)
Han-Seung Koo, Jin-Hwan Lee, Yun‐Jeong Song, Oh-Seok Kwon, Soo In Lee · IEMEK Journal of Embedded Systems and Applications · 2008
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.