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Design and Analysis of Secure and Dependable Automotive CPS: A Steer-by-Wire Case Study
IEEE Transactions on Dependable and Secure Computing ( IF 7.3 ) Pub Date : 2020-07-01 , DOI: 10.1109/tdsc.2018.2846741
Arslan Munir , Farinaz Koushanfar

The next generation of automobiles (also known as cybercars) will increasingly incorporate electronic control units (ECUs) in novel automotive control applications. Recent work has demonstrated the vulnerability of modern car control systems to security attacks that directly impacts the cybercar's physical safety and dependability. In this paper, we provide an integrated approach for the design of secure and dependable automotive cyber-physical systems (CPS) using a case study: a steer-by-wire (SBW) application over controller area network (CAN). The challenge is to embed both security and dependability over CAN while ensuring that the real-time constraints of the automotive CPS are not violated. Our approach enables early design feasibility analysis of automotive CPS by embedding essential security primitives (i.e., confidentiality, integrity, and authentication) over CAN subject to the real-time constraints imposed by the desired quality of service and behavioral reliability. Our method leverages multicore ECUs for providing fault tolerance by redundant multi-threading (RMT) and also further enhances RMT for quick error detection and correction. We quantify the error resilience of our approach and evaluate the interplay of performance, fault tolerance, security, and scalability for our SBW case study.

中文翻译:

安全可靠的汽车 CPS 的设计和分析:线控转向案例研究

下一代汽车(也称为网络汽车)将越来越多地将电子控制单元 (ECU) 集成到新型汽车控制应用中。最近的工作证明了现代汽车控制系统在直接影响网络汽车的物理安全性和可靠性的安全攻击面前的脆弱性。在本文中,我们使用案例研究提供了一种用于设计安全可靠的汽车信息物理系统 (CPS) 的集成方法:控制器局域网 (CAN) 上的线控转向 (SBW) 应用程序。面临的挑战是在 CAN 上嵌入安全性和可靠性,同时确保不违反汽车 CPS 的实时限制。我们的方法通过嵌入基本的安全原语(即机密性、完整性、和身份验证)通过 CAN 受所需服务质量和行为可靠性强加的实时约束。我们的方法利用多核 ECU 通过冗余多线程 (RMT) 提供容错,并进一步增强 RMT 以快速检测和纠正错误。我们量化了我们方法的错误恢复能力,并评估了 SBW 案例研究的性能、容错性、安全性和可扩展性之间的相互作用。
更新日期:2020-07-01
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