최근 디지털 컨버전스가 가속화되면서 급부상하고 있는 차세대 IPTV 서비스는 4A(Any-time, Any-where, Any-device, Any-content)를 특징으로 하는 통방 융합 패러다임의 대표적인 신개념 서비스이다. 4A 서비스는 디바이스에 구애받지 않고 자유롭게 콘텐츠의 생성과 소비가 가능하며, 전송환경과 디바이스의 종류에 맞게 안전한 미디어 변환과 콘텐츠의 재사용을 가능하게 한다. 그러나 기존의 보안기술은 다양한 단말 성능에 따른 미디어 변환과 콘텐츠의 재사용 과정에서 많은 한계점이 있다. 본 고에서는 이와 같이 차세대 IPTV 서비스를 제공함에 있어서 발생될 수 있는 보안상의 문제점과 이를 해결하기 위한 보안 기술로서의 scalable security 및 적용 시 고려 사항에 대하여 살펴보기로 한다.
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