综合化航电系统中的密钥管理方法研究

Study of Key Management Scheme In Integrated Modular Avionics

综合化航电系统的安全问题将是系统设计者的主要挑战之一,密钥管理是解决安全问题的基础。综合化航电系统的密钥管理不同于联合式航电系统,不存在专用的安全模块和加密总线,因此密钥及保密数据的加载需要新的方式。从综合化航电系统的特点出发,从地面到空中全方位考虑密钥的生成、加载、分配、存储以及擦除的过程,给出了航电系统密钥管理的一个具体方案,并对该方案的优缺点进行了分析,表明该方案具有较好的安全性。

In face of security challenge within Integrated Modular Avionics system, several security measures are introduced, however key management is the foundation of these security measures. As compared with federated avionic system, there is no secure CFMS or crypto bus, as a result a new way should be developed to manage keys. Considering the characteristic of the Integrated Modular Avionics system, the keys will be generated on the ground and used in the air. A schema is developed and analyzed in this paper to ensure the security of key management.