AvTA Based Assessment of Dependability Considering Recovery After Failures and Attacks on Vulnerabilities

2019 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS) Pub Date : 2019-09-01 DOI:10.1109/IDAACS.2019.8924251

V. Kharchenko, Yuriy Ponochovnyi, Al-Sudani Mustafa Qahtan Abdulmunem, Iryna Shulga

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引用次数: 2

Abstract

The paper describes modification of the ATA (Attack Tree Analysis) technique for assessment of instrumentation and control systems (ICS) dependability (reliability, availability and cyber security) called AvTA (Availability Tree Analysis). The techniques FMEA, FMECA and IMECA applied to carry out preliminary semi-formal and criticality oriented analysis before AvTA based assessment are described. AvTA models combine reliability and cyber security subtrees considering probabilities of ICS recovery in case of hardware (physical) and software (design) failures and attacks on components casing failures. Successful recovery events (SREs) avoid corresponding failures in tree using OR gates if probabilities of SRE for assumed time are more than required. Case for dependability AvTA based assessment (model, availability function and technology of decision-making for choice of component and system parameters) for smart building ICS (Building Automation Systems, BAS) is discussed.

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考虑故障恢复和漏洞攻击的基于AvTA的可靠性评估

本文描述了用于评估仪器和控制系统(ICS)可靠性(可靠性、可用性和网络安全性)的ATA(攻击树分析)技术的改进，称为AvTA(可用性树分析)。描述了在基于AvTA的评估之前，FMEA、FMECA和IMECA技术用于进行初步的半正式分析和面向关键的分析。AvTA模型结合了可靠性和网络安全子树，考虑了在硬件(物理)和软件(设计)故障以及组件外壳受到攻击的情况下ICS恢复的概率。如果成功恢复事件(SREs)在假设时间内的概率大于要求，则使用OR门避免树中相应的故障。讨论了智能建筑自动化系统中基于AvTA的可靠性评估(模型、可用性函数以及组件和系统参数选择决策技术)的实例。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS)

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