计算机科学 ›› 2024, Vol. 51 ›› Issue (4): 366-372.doi: 10.11896/jsjkx.230200135
庞宇翔, 陈泽茂
PANG Yuxiang, CHEN Zemao
摘要： 飞控系统是无人机的核心部件,对无人机的功能和性能起着决定性作用,是无人机信息安全防护的重点对象。文中针对PX4飞控系统面临的恶意代码植入、内部交互数据篡改等安全风险,设计了一种面向位置环境的基于属性的访问控制策略(LE-ABAC),该策略基于访问控制实体属性和无人机外部位置环境信息制定访问控制规则,可以实现对无人机内的数据交互过程进行细粒度控制,保护关键交换数据的机密性与完整性。文中在PX4软件仿真平台上对所提方案进行了攻击仿真实验,结果表明该模型能够在不显著降低无人机飞控效率的前提下,有效保护飞控系统内部交互数据不被窃取和篡改。
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