Ku波段多媒体证券信息单向卫星发布平台的安全方案

Security solution for multimedia securities information distribution platform in Ku-band satellite platform

描述了Ku波段多媒体证券信息单向卫星广播系统的安全方案,它在条件接收的安全基 础上加上了自己的地址过滤函数和USB密钥,实现了平台的安全功能。方案的关键是让解扰密 钥、业务密钥和个人分配密钥从链路层保证安全,而USB密钥则从报文层保证安全。通过自定 义地址过滤函数,本方案使用户可以方便地扩充安全功能。

The safety solution related to the Ku-band multimedia securities information run on the unilateral satellite broadcast system is described. It is based on the conditional access (CA) system by adding an address filter function as well as the USB key to strengthen its security. The core point is that the control word (CW), service key (SK) and personal distribute key (PDK) can work on the link layer while USB key on the application layer. Through the self-defined filter function, users can expand its security capacity.