【摘要】 远程视频监控系统将在军队作战指挥、管理等方面发挥重要的作用,视频信息安全到达授权用户端是保证军事信息安全的一个重要方面。针对军队视频监控系统信息传输的安全问题,提出一种基于三层加密体系对传输流加扰对控制字加密的方法,详细分析了其工作原理、密钥分配过程和ECM,EMM消息结构,并在Windows XP平台下进行了系统的原型开发。测试结果表明,此方法能够有效保证军队视频信息安全到达授权用户端。更多还原

【Abstract】 Remote video surveillance system plays a significant role in the military combat command and management,meanwhile that the video information is delivered to the authorized client in security is an important aspect to ensure military information security.This paper proposes a method to scramble transmission stream and encrypt control words based on a three-tiered encryption system.The work principle of this method,the key distribution process and the ECM,EMM message structures are described in detail.And the prototype system is developed on the Windows XP platform.The test results demonstrate that the method can be able to effectively insure the security of military video information delivered to the authorized client.更多还原