Combining SVC and CAS modules to support heterogeneous devices
Electronics, Information and Communications（2014）
摘要
CAS used in IPTV and DTV was designed to transfer a single content through a single stream. But, if CAS is combined with SVC coding technique, it can be improved to support diverse video applications through a single streaming. In this paper, we analyze the issues that can occur if SVC is applied to CAS, and also propose SVC encryption module in the CAS environment. The proposed scheme's safety is guaranteed by the safety of the existing CAS and oneway hash function. Also, the proposed scheme has an advantage of relatively small overheads in the existing CAS.
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关键词
conditional access,telecommunication security,television broadcasting,video coding,video streaming,cas environment,dtv,iptv,svc coding technique,svc encryption module,conditional access system,heterogeneous devices,internet protocol television,scalable video coding,single stream,video applications,cas,svc,secure streaming
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