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Detecting and thwarting hardware trojan attacks in cyber-physical systems

机译：在网络物理系统中检测和阻止硬件木马攻击

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摘要

Cyber-physical system integrity requires both hardware and software security. Many of the cyber attacks are successful as they are designed to selectively target a specific hardware or software component in an embedded system and trigger its failure. Existing security measures also use attack vector models and isolate the malicious component as a counter-measure. Isolated security primitives do not provide the overall trust required in an embedded system. Trust enhancements are proposed to a hardware security platform, where the trust specifications are implemented in both software and hardware. This distribution of trust makes it difficult for a hardware-only or software-only attack to cripple the system. The proposed approach is applied to a smart grid application consisting of third-party soft IP cores, where an attack on this module can result in a blackout. System integrity is preserved in the event of an attack and the anomalous behavior of the IP core is recorded by a supervisory module. The IP core also provides a snapshot of its trust metric, which is logged for further diagnostics.
机译：网络物理系统完整性需要硬件和软件安全性。许多网络攻击都是成功的，因为它们被设计为在嵌入式系统中选择性地定位特定的硬件或软件组件并触发其故障。现有的安全措施还使用攻击矢量模型并将恶意组件隔离为反尺寸。孤立的安全性原语不能提供嵌入式系统所需的整体信任。支持硬件安全平台的信任增强功能，其中信任规范在软件和硬件中实现。这种信任的分布使得仅用于硬件或软件攻击难以扼杀系统。该提出的方法应用于由第三方软件IP核心组成的智能电网应用程序，其中攻击该模块可能导致停电。在发生攻击时保留系统完整性，并由监控模块记录IP内核的异常行为。 IP核心还提供了其信任度量标准的快照，以用于进一步的诊断。

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