航电记录数据加密算法的研究

军用飞机的航空电子系统在飞机飞行过程中所产生和使用的飞行数据因没有相应的保护措施,在某些情况下往往容易被窃取,甚至在危急时只能以毁掉数据存储卡里珍贵的数据为代价来保密。本文分析了几种密码算法的原理及其脆弱性,提出了一种综合运用对称密码技术和非对称密码技术来对飞行数据进行加密的设计方法。

Investigation on Encryption Algorithms Used in the Avionics Record Data

The flight data employed and transmitted by avionics system on board military aircraft during the period of its flight are easy to be intercepted in case for lack of necessary protection measures;even at the price of destroying the precious data in storage card in an emergency in order to keep the data security.The principles of several kings of encrypted algorithm and their vulnerability to jamming are analyzed in this paper.A concept for encoding flight data by comprehensively using symmetric crypto-technology and asymmetric crypto-technology is put forward.