Real-Time Safety Assessment of Unmanned Aircraft Systems Against Stealthy Cyber Attacks
Real-Time Safety Assessment of Unmanned Aircraft Systems Against Stealthy Cyber Attacks
复制标题
无人机系统针对隐形网络攻击的实时安全评估
DOI：
10.2514/1.i010388
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Inseok Hwang
中科院分区：
文献类型：
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作者：
Cheolhyeon Kwon;Scott Yantek;Inseok Hwang
随着无人驾驶飞机系统日益成为广泛应用中不可或缺的一部分，确保这些系统免受恶意网络攻击的安全性是一个非常重要的问题。为了解决这一问题，本文考虑了一种超越无人机系统计算资源的控制域方法，包括被入侵系统的底层物理行为，成功地补充了传统的计算机安全体系结构。具体来说，重点是在存在隐形网络攻击的情况下对无人机系统进行安全分析，该系统可以通过智能设计来避免被发现。首先，推导了限制隐身攻击者能力的系统条件。在此基础上，提出了一种基于可达性分析的实时安全评估算法。与已有的研究相比，本算法解析导出了精确可达集，使安全评估更加可靠，计算效率更高。
As unmanned aircraft systems become an increasingly integral part of a wide range of applications, ensuring the security of these systems against malicious cyber attacks is a very important concern. To address this problem, this paper considers a controls domain approach extending beyond the computing resources of the unmanned aircraft system to include the underlying physical behavior of the compromised system, successfully complementing the traditional computer security architecture. Specifically, the focus is on the safety analysis of an unmanned aircraft system in the presence of stealthy cyber attacks, which can be designed intelligently to avoid detection. First, the system condition that confines the stealthy attacker’s capability is derived. Then, a real-time safety assessment algorithm is developed based on a reachability analysis. Compared to the existing research, the present algorithm analytically derives the exact reachable set, enabling more reliable and computationally efficient safety asse...