Work-in-Progress: Measuring Security Protection in Real-time Embedded Firmware

Yuhao Wu, Yujie Wang, Shixuan Zhai, Zihan Li, Ao Li, Jinwen Wang, Ning Zhang
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Abstract

The proliferation of real-time cyber-physical systems (CPS) is making profound changes to our daily life. Many real-time CPSs are security and safety-critical because of their continuous interactions with the physical world. While the general perception is that the security protection mechanism deployment is often absent in real-time embedded systems, there is no existing empirical study that measures the adoption of these mechanisms in the ecosystem. To bridge this gap, we conduct a measurement study for real-time embedded firmware from both a security perspective and a real-time perspective. To begin with, we collected more than 16 terabytes of embedded firmware and sampled 1,000 of them for the study. Then, we analyzed the adoption of security protection mechanisms and their potential impacts on the timeliness of real-time embedded systems. Besides, we measured the scheduling algorithms supported by real-time embedded systems since they are also security-critical.
正在进行的工作:测量实时嵌入式固件中的安全保护
实时信息物理系统(CPS)的普及正在深刻改变我们的日常生活。许多实时cps对安全性和安全性至关重要,因为它们与物理世界的持续交互。虽然人们普遍认为实时嵌入式系统中往往缺乏安全保护机制的部署,但目前还没有实证研究来衡量这些机制在生态系统中的采用情况。为了弥补这一差距,我们从安全角度和实时角度对实时嵌入式固件进行了测量研究。首先,我们收集了超过16tb的嵌入式固件,并对其中的1000个进行了采样。然后,我们分析了安全保护机制的采用及其对实时嵌入式系统时效性的潜在影响。此外,我们还测量了实时嵌入式系统支持的调度算法,因为它们也是安全关键的。
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