Design and analysis of hardware Trojans in approximate circuits
Design and analysis of hardware Trojans in approximate circuits
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DOI：
10.1049/ell2.12405
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发表时间：
2021-12
影响因子：
1.1
通讯作者：
Yuqin Dou;Chenghua Wang;Chongyan Gu;Máire O’Neill;Weiqiang Liu
中科院分区：
文献类型：
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作者：
Yuqin Dou;Chenghua Wang;Chongyan Gu;Máire O’Neill;Weiqiang Liu
近似计算可以接受计算系统中的误差，从而更好地利用硬件资源。近似计算在近似算术电路和近似加速器等集成电路中得到了成功的发展。不幸的是，最近的研究表明近似电路也有安全漏洞。硬件木马是硬件安全的最大威胁之一。然而，对硬件木马在近似电路中的研究非常有限。在这封信中，介绍了两种类型的硬件木马，即功能破坏木马和信息泄露木马。木马是根据近似电路的特性设计的。利用近似电路的评价指标分析了硬件木马的有效性。
Approximate computing can accept errors in computation systems to achieve better utilisation of hardware resources. Approximate computing has been successfully developed in integrated circuits, such as approximate arithemtic circuits and approximate accelerators. Unfortunately, recent works show that approximate circuits also have security vulnerabilities. Hardware Trojan is one of the biggest threats to hardware security. However, very limited research has been conducted on hardware Trojans in approximate circuits. In this letter, two types of hardware Trojans, namely Function-destructive Trojans and Information-leaking Trojans, are presented. The Trojans are designed based on the characteristics of approximate circuits. The effectiveness of the hardware Trojans are analysed using the evaluation metrics for approximate circuits.