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- W2891047534 abstract "Hardware Trojan (HT), which usually is activated under rare conditions associated with low transition bits in a circuit, can lead to circuit functional failure or information leakage. Effectively activating hidden HTs is a major challenge during the HT detection process. In this study, the authors propose a novel approach for efficiently activating Trojans hidden in digital signal processing (DSP) circuits by increasing the transition activity of rare bits. In particular, the bit-level transition activity can be increased by controlling signal word-level statistical properties, such as standard deviation and autocorrelation, and their propagation through various operators involved in DSP circuit design. As a result, the proposed approach can generate appropriate test vectors, which effectively activate internal rare nodes and trigger HTs. The experimental results show that using the proposed approach the transition activity of rare bits is significantly increased and various HTs inserted into DSP circuits are activated with reduced time. By comparing to an existing activation approach working at the bit level, the proposed approach is superior in test vectors generation time up to 9 times reduction and HT activation time up to 66 times reduction." @default.
- W2891047534 created "2018-09-27" @default.
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- W2891047534 date "2018-10-05" @default.
- W2891047534 modified "2023-09-25" @default.
- W2891047534 title "Signal word‐level statistical properties‐based activation approach for hardware Trojan detection in DSP circuits" @default.
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- W2891047534 doi "https://doi.org/10.1049/iet-cdt.2018.5101" @default.
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