中国的电影市场已经全面进入了数字化的时代。硬盘拷贝和卫星传输是影院获得节目的主要方式。无论是哪一种方式,密钥都是电影放映管理环节很重要的一环。无密钥的胶片的放映方式,在主流的影院已经完全被淘汰。影院平时对数字化节目的管理体系中,密钥的重要性不言而喻,但是我们对密钥的重要性认识不够。在实际使用过程中,发现密钥的某些方面不完善,不方便使用。这和国人一贯注重硬件忽视软件有一定的关系。硬件是要付费的,软件是免费的。目前上映的影片主要是中影和华夏公司提供密钥。但是两家公司 China’s film market has fully entered the digital era. Hard copy and satellite transmission are the main ways theaters receive the show. Either way, the key is a very important part of the film show management. Keyless film screening, has been completely eliminated in the mainstream cinema. Cinema usual digital program management system, the importance of the key is self-evident, but we do not know enough about the importance of the key. In actual use, some aspects of the key are found to be imperfect and inconvenient to use. This people always pay attention to hardware ignore the software has a certain relationship. The hardware is paid, the software is free. The current release of the film is mainly provided by China Film and Huaxia key. But two companies