【作者】 宋宜纯； 王振中；

【Author】 SONG Yichun;WANG Zhenzhong;China Central Television;

【机构】 中国中央电视台；

【摘要】 电视台IT化发展在提高生产效率的同时,在数据可信性等方面也带来新的挑战,如何确保台内数据在制播体系内的各个环节安全交付已成为保障电视台安全播出的关键因素。本文介绍可信环境构建的基本理论,阐述公钥基础设施体系的组成及架构,论述数字签名和数字信封技术的原理和实现方法。更多还原

【Abstract】 The trend of IT-based TV station development not only increases the production efficiency, but brings new challenges in aspects such as data credibility. The key fact to ensure the security for broadcasting is how to guarantee the data safety of each step in the broadcasting delivery system. This paper introduces the basic theory to build a trusted environment, elaborates the composition and structure of a public key infrastructure system and describes the principles and implementation of digital signatures and digital envelopes technology. All of these increase the security level of TV station, provide a good reference and guidance for building acredible broadcasting system.更多还原