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近年来,随着大数据、云计算等新一代信息技术的广泛应用,广播电视与互联网视听媒体的融合互联进程加快,广播电视安全播出所面临的信息网络技术环境从封闭的、绿色的、可信的安全环境逐步转变为开放的、互联的、不可信的非安全环境。安全播出保障需求也发生了重大变化,防护对象从链路式、单向化、区域性的播出传输系统,转变为网络化、双向化、广域性的多媒体信息交互系统,保障内容从广播电视节目扩展到包含音视频、图片、文字、数据等各种终端多媒
In recent years, with the widespread application of new generation of information technologies such as big data and cloud computing, the process of the integration and connection of broadcast media and Internet audio-visual media has been accelerated. The information network technology environment faced by the security broadcast of radio and television has changed from a closed, green, Trusted security environment is gradually transformed into an open, interconnected and unreliable non-secure environment. Security broadcast security needs have undergone major changes in the protection of objects from the link, one-way, regional broadcast transmission system, networked, bi-directional, wide-area multimedia information exchange system to protect the content from Radio and television programs extended to include audio and video, pictures, text, data and other terminal multimedia