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REVERSIM: A Game-Based Environment to Study Human Aspects in Hardware Reverse Engineering

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arXiv:2309.05740v2 Announce Type: replace
Abstract: Hardware Reverse Engineering (HRE) is a technique for analyzing Integrated Circuits (ICs). Experts employ HRE for security-critical tasks, such as detecting Trojans or intellectual property violations. They rely not only on their experience and customized tools but also on their cognitive abilities. Conducting controlled experiments to assess the cognitive processes involved in HRE can open new avenues for hardware protection. However, HRE experts are largely unavailable for empirical research in real-world settings. To address this challenge, we have developed REVERSIM, a game-based environment that mimics realistic HRE subprocesses and can integrate standardized cognitive tests. REVERSIM enables quantitative studies with easier-to-recruit non-experts to uncover cognitive factors relevant to HRE, which can subsequently be validated with small expert samples. To evaluate the design of REVERSIM, the minimum requirements for successful participation, and its measurement capabilities, we conducted two studies: First, we performed semi-structured interviews with 14 professionals and researchers from the HRE domain, who attested to the comparability of REVERSIM to real-world HRE problems. Second, we conducted an online user study with 109 participants, demonstrating that they could engage in REVERSIM with low domain-specific prior knowledge. We provide refined screening criteria, derive fine-grained performance metrics, and successfully perform a cognitive test for mental speed in REVERSIM, thus contributing an important piece of the puzzle for the development of innovative hardware protection mechanisms.

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